Cambodia Overview

Map showing Cambodia in mainland Southeast Asia

Cambodia is a mainland Southeast Asian country bordered by Thailand, Laos and Vietnam, with a 443-kilometer coastline on the Gulf of Thailand. Its geography combines the central Mekong lowlands, the seasonally expanding Tonle Sap basin, the Cardamom Mountains, northeastern plateaus and a tropical southern coast. Phnom Penh, the capital, stands near the confluence of the Mekong, Tonle Sap and Bassac rivers.

Cambodia had about 17.6 million residents in 2024, according to the World Bank. Khmer is the official language, while Theravada Buddhism is the dominant religion. Cambodia’s 2019 census recorded 97.1% of residents as Buddhist and 2.0% as Muslim. A separate census report counted 455,610 people across listed ethnic minority groups, including 275,217 Cham people. Punong, Tumpuon, Charai, Kroeng and Kuoy communities are especially important to the cultural landscape of eastern and northeastern Cambodia.

Cambodia’s history extends far beyond Angkor. Funan and Chenla were early Southeast Asian polities shaped by regional trade and strong Indic cultural influences. Jayavarman II’s reign from the early ninth century is traditionally associated with the beginning of the Angkorian Khmer Empire. Cambodia later became a French protectorate in 1863 and gained independence in 1953. The Khmer Rouge regime from 1975 to 1979 caused one of the country’s most devastating human tragedies, a history now interpreted at memorial sites recognized by UNESCO.

Most first-time travelers should allow at least 7 to 10 days for Siem Reap, Angkor and Phnom Penh. Twelve days or longer makes it easier to add Battambang, Tonle Sap, the southern coast or the Mekong. Cambodia’s combination of ancient cities, river ecosystems, living Khmer culture and tropical islands creates several distinct reasons to visit Cambodia beyond Angkor Wat alone.

Cambodia Weather and Best Time for Temples, Cities and Islands

November to February offers the easiest overall weather for Cambodia, with lower rainfall and more comfortable temperatures for temple visits, city walking and beach travel. The May to October Green Season brings wetter weather, greener countryside and a much larger Tonle Sap Lake.

Travel periodTypical temperatureBest forWhat to expect
November-FebruaryAbout 25-29°CAngkor, Phnom Penh, islands and general touringDrier weather, cooler mornings and peak visitor demand
March-AprilAbout 29-35°CFestivals and dry-season travelHottest period, especially around temple complexes
May-JuneAbout 27-32°CGreen landscapes and quieter templesMonsoon begins, usually with short heavy showers
July-SeptemberAbout 26-31°CTonle Sap, rice landscapes and photographyWettest period; coast and Cardamoms receive heavier rainfall
OctoberAbout 26-30°CGreen countryside and seasonal transitionRain begins decreasing as Tonle Sap remains high

Cambodia’s coast has a stronger seasonal difference than Angkor or Phnom Penh. Koh Rong, Koh Rong Sanloem and the Kep-Kampot coast generally have calmer seas during the Cambodia dry season from November to April. By contrast, the Cambodia rainy season brings greener landscapes, higher Tonle Sap water levels and more frequent rain from May to October.

Cambodia Visa, e-Arrival and Entry Requirements

Most international visitors need either a visa or a nationality-based exemption, and all travelers must complete Cambodia e-Arrival before entry. Passport holders should verify the rules for their nationality before departure because visa exemptions differ.

RequirementCurrent information
Tourist e-Visa typeVisa T
Tourist e-Visa feeUSD 30
Entry typeSingle entry
Visa validity3 months from issue
Maximum stay1 month
Standard processing3 business days
Passport validityMore than 6 months remaining at entry
Cambodia e-ArrivalRequired for all travelers, including visa holders
Recommended e-Arrival timingWithin 7 days before arrival

The official e-Visa system currently lists Laos, Malaysia, the Philippines, Singapore, Vietnam, Thailand, Indonesia, Brunei Darussalam and Myanmar among visa-exempt nationalities. Permitted stays vary, so travelers should check the conditions applying to their passport rather than relying on an old fixed-duration list.

A temporary rule also applies to eligible People’s Republic of China passport holders from June 15 to October 15, 2026. Eligible travelers from mainland China, Hong Kong and Macau can enter visa-free for up to 14 days per entry during this period, while Cambodia e-Arrival remains mandatory.

Visa rules can change faster than general travel information. Use Cambodia’s official e-Visa and e-Arrival system at evisa.gov.kh before travel.

How to Get to Cambodia: Airports and Land Borders

Phnom Penh and Siem Reap are Cambodia’s main international air gateways, while Bavet remains the most useful current land entry from Vietnam. Airport infrastructure changed significantly between 2023 and 2025, so older guides may show airports that no longer handle the same passenger traffic.

Entry pointLocationBest forCurrent traveler note
Techo International Airport (KTI)About 20 km south of Phnom PenhPhnom Penh and central CambodiaCambodia’s main new capital gateway since September 2025
Siem Reap Angkor International Airport (SAI)About 42 km from Siem Reap citySiem Reap and AngkorAbout 40 km from the Angkor temple area
Sihanoukville International Airport (KOS)Preah Sihanouk ProvinceSouthern coast and islandsOne of the current airports accepting Cambodia e-Visa
Bavet border checkpointSvay Rieng ProvinceOverland travel from VietnamCurrent e-Visa entry point
Tropaeng Kreal border checkpointStung Treng ProvinceOverland travel from LaosCurrent e-Visa entry point

Techo International Airport has standard taxis and ride-hailing services including Grab, WowNow and PassApp. Published airport guidance gives an approximate taxi or app fare of USD 10-20 depending on the Phnom Penh drop-off point. An Airport Express Bus also operates daily between the airport and Phnom Penh.

Siem Reap Angkor International Airport is much farther from central Siem Reap than the former city airport. Travelers should therefore allow more transfer time before flights and early temple programs.

August 2026 border update: land crossings between Cambodia and Thailand remain affected by the border security situation. Current official Cambodia e-Visa information lists Poipet and Cham Yeam as temporarily closed for e-Visa entry. Current UK travel advice also states that Cambodia-Thailand land crossings remain suspended and that tourist sites close to the affected border, including Preah Vihear, are closed. Recheck the situation immediately before planning an overland Thailand route.

Getting Around Cambodia by Road, Rail, Boat and Tuk-Tuk

Road transport remains the most flexible way to travel around Cambodia, but passenger trains, ferries and ride-hailing services add useful alternatives.

  • Coach and minivan: the main budget option between Phnom Penh, Siem Reap, Battambang, Kampot and other provincial centers.
  • Tuk-tuk and ride-hailing: Grab and PassApp are practical for local trips in Phnom Penh, Siem Reap and other major visitor centers.
  • Private car: a private car with driver in Cambodia works well for families and multi-stop routes outside major cities.
  • Passenger train: the Northern Line connects Phnom Penh with Pursat and Battambang; the Southern Line serves Takeo, Kep, Kampot and Sihanoukville.
  • Island ferry: regular boats connect Sihanoukville with Koh Rong and Koh Rong Sanloem.
  • Domestic flight: useful when road travel would consume a large part of a short itinerary.

Rail schedules change more often than the route network. Check Royal Railway’s current timetable before building a Cambodia itinerary around a train departure.

Cambodia Currency, Cards and QR Payments

Cambodian riel is the national currency, but US dollars remain widely used alongside cards and Cambodia’s expanding KHQR payment system. Around 4,000 KHR to USD 1 is a useful mental reference, although the actual exchange rate changes.

Payment methodWhere it works bestTraveler note
Cambodian riel (KHR)Markets, street food, tuk-tuks and small purchasesUseful for low-value transactions and change
US dollarsHotels, tours and larger purchasesCarry clean, undamaged notes
Credit / debit cardLarger hotels, restaurants and established shopsLess reliable in small towns and rural areas
KHQR / BakongIncreasing number of shops and service providersBakong Tourists supports QR payments in KHR and USD

Damaged, dirty or torn US-dollar notes may be refused, particularly higher denominations. Check large notes received as change and carry some riel outside major tourism centers.

Accommodation, transport style and Angkor tickets have a much larger effect on the budget than everyday food. Current examples and planning ranges are covered in our breakdown of Cambodia travel costs.

Angkor and Cambodia’s UNESCO Cultural Heritage

Cambodia has five UNESCO World Heritage properties, but Angkor remains the country’s largest and most complex visitor landscape. The list now extends from pre-Angkor Ishanapura to twentieth-century memorial sites, allowing travelers to follow more than a millennium of Cambodian history rather than treating the country as an Angkor-only destination.

Angkor was inscribed in 1992 and covers about 400 square kilometers. UNESCO describes it as a series of former Khmer capitals containing temples, roads and major hydraulic infrastructure. Reservoirs, basins, dykes and canals show that Angkor was a metropolitan landscape supported by sophisticated water management rather than simply a collection of isolated temples.

Angkor Wat was built under King Suryavarman II in the first half of the twelfth century. Originally dedicated to Vishnu, the temple later became an important Buddhist religious site. Nearby Angkor Thom was established under King Jayavarman VII in the late twelfth century, with Bayon Temple at its symbolic center.

Other major Angkor-area entities include:

  • Bayon Temple: central state temple of Angkor Thom, known for monumental stone face towers.
  • Ta Prohm: late twelfth-century monastic complex where large trees remain integrated with the ruins.
  • Preah Khan: extensive Jayavarman VII complex combining religious, educational and administrative functions.
  • Banteay Srei: tenth-century temple known for detailed carving in reddish sandstone.
  • Phnom Bakheng: early Angkor temple mountain and one of the best-known sunset viewpoints.

Current Angkor ticket information:

PassPriceValidityGeneral entry hours
1-day Angkor PassUSD 371 day05:00-18:30
3-day Angkor PassUSD 62Use within 7 days05:00-18:30
7-day Angkor PassUSD 72Use within 30 days05:00-18:30

A useful ticket rule is easy to miss. A one-day pass purchased for the following day after 4:45 PM also permits entry for sunset that evening, while remaining valid for the full next day. Children under 12 do not need an Angkor admission ticket, although proof of age may be requested. Children under 12 cannot climb the Upper Tower at Angkor Wat.

Cambodia’s complete UNESCO World Heritage list is:

World Heritage propertyInscriptionWhy it mattersCurrent traveler note
Angkor1992Khmer capitals, temples and hydraulic systems across about 400 km²Main visitor base is Siem Reap
Temple of Preah Vihear2008Shiva temple arranged along an approximately 800-meter ceremonial axisAccess affected by current Cambodia-Thailand border restrictions
Sambor Prei Kuk2017Pre-Angkor capital Ishanapura with 186 fired-brick temples in its temple zoneNear Kampong Thom
Koh Ker2023Khmer imperial capital from 921 to 944, founded by Jayavarman IVPublished one-day ticket: USD 15
Cambodian Memorial Sites2025M-13, Tuol Sleng and Choeung Ek document stages of Khmer Rouge repressionTuol Sleng and Choeung Ek receive visitors; M-13 is not generally accessible

Sambor Prei Kuk gives Cambodia’s history a crucial pre-Angkor chapter. Ancient Ishanapura flourished as a Chenla capital in the late sixth and early seventh centuries. UNESCO records 186 fired-brick temples within the 840-hectare temple zone, including rare octagonal structures. The site’s artistic and architectural language helped establish patterns later developed during the Angkor period. Its location also gives travelers several historical reasons to visit Kampong Thom between Phnom Penh and Siem Reap.

Koh Ker became one of two competing Khmer capitals in 921 and the sole imperial capital from 928 to 944. King Jayavarman IV developed an unusual sacred city using monumental architecture and very large monolithic stone blocks. The archaeological property covers 1,187.61 hectares and was added to the World Heritage List in 2023.

Phnom Penh adds Cambodia’s royal, colonial and twentieth-century layers. The Royal Palace and National Museum preserve royal and Khmer artistic history, while Tuol Sleng Genocide Museum and Choeung Ek Genocidal Center became components of Cambodia’s newest World Heritage property in 2025.

Battambang provides a different urban heritage experience along the Sangkae River. UNESCO designated it Cambodia’s first Creative City of Gastronomy in 2023. Its identity combines an agricultural hinterland, historic urban architecture, Phare Ponleu Selpak arts, the bamboo railway and Phnom Sampeau. These layers form several reasons to visit Battambang beyond using the city only as a stop between Phnom Penh and Siem Reap.

Tonle Sap, the Mekong River and Cambodia’s Natural Landscapes

Cambodia’s most important natural systems are shaped by water, forests and the seasonal monsoon. Tonle Sap changes dramatically with the Mekong flood pulse, while the Mekong itself supports rare wildlife and the eastern highlands protect forests, waterfalls and culturally distinct communities.

Tonle Sap Lake is Southeast Asia’s largest freshwater lake and one of Cambodia’s most unusual natural systems. During the wet season, high Mekong water pushes into the Tonle Sap River and causes the river to reverse its direction. The lake can expand to about five times its dry-season extent, flooding forests and creating breeding habitat for fish and birds.

UNESCO designated the Tonle Sap Biosphere Reserve in 1997. The annual flood cycle supports fishing, farming and settlements adapted to changing water levels. Boat experiences can therefore look very different between the late dry season and peak high-water months. The relationship between reversed flow, flooded forest and local livelihoods is central to Tonle Sap’s seasonal ecosystem.

Other important natural areas include:

PlaceMain natural or cultural attributeBest for
Prek ToalCore bird-conservation area within the Tonle Sap Biosphere ReserveBirdwatching and flooded-forest ecosystems
KratieMekong habitat for Cambodia’s Irrawaddy dolphinsRiver travel and wildlife observation
MondulkiriForested highlands associated strongly with Bunong communitiesWaterfalls, community travel and ethical elephant observation
RatanakiriVolcanic landscapes and Tampuan, Kreung and Jarai cultural areasYeak Laom Lake, villages and highland travel
Cardamom MountainsLarge southwestern rainforest landscapeCommunity ecotourism and guided trekking
Phnom KulenSacred sandstone plateau northeast of AngkorWaterfalls, religious sites and Khmer historical context

The Mekong population of Irrawaddy dolphins is especially important. A World Bank conservation update reported 111 dolphins as of November 2025, describing them as the last surviving Irrawaddy dolphin population in the Mekong River. Kratie is the main traveler base for responsible dolphin-watching trips.

The Cardamoms, Mondulkiri and Ratanakiri broaden the country’s trekking routes in Cambodia beyond temple tourism. Remote forest trips should use established local guides and marked routes.

Cambodia Beaches, Islands and Coastal Travel

Cambodia’s strongest beach experiences are now concentrated on its offshore islands, while Sihanoukville functions primarily as the main transport gateway. November to April generally offers calmer seas for ferry travel, swimming and snorkeling.

DestinationBest forKey distinction
SihanoukvilleFerries, flights and coastal connectionsPort city and main gateway to Cambodia’s southern islands
Koh RongBeaches, snorkeling and longer island staysLarge island with both active and quieter beach areas
Koh Rong SanloemSlower beach staysSmaller-scale accommodation and quieter atmosphere
KampotRiver scenery, pepper farms and BokorHistoric riverside town beside Cambodia’s pepper-growing region
KepSeafood and short coastal staysBlue swimmer crab, coastal scenery and access to Koh Tonsay
Ream National ParkMangroves and coastal natureProtected coastal landscape near Sihanoukville

Sihanoukville has changed considerably from the quiet beach city described in older Cambodia guides. It remains useful for its deep-water port, airport, expressway access and ferry terminals, but travelers prioritizing a tropical beach holiday often continue offshore.

Koh Rong Island combines long sandy beaches with snorkeling, kayaking and different resort zones. Some sheltered waters around the island can display bioluminescent plankton at night when conditions are suitable.

Kampot and Kep work well as a combined coastal route. Kampot adds river travel, Bokor Mountain and pepper farms. Kep is better known for seafood, especially blue swimmer crab cooked with fresh Kampot pepper. Boats also connect Kep with Koh Tonsay, commonly called Rabbit Island.

Where to Stay in Cambodia by Destination

Choose accommodation by route rather than using one city as a base for the whole country. Distances between Angkor, Phnom Penh, the coast and the northeastern highlands are too large for practical day returns.

  • Siem Reap: Old Market and Wat Bo areas work well for restaurants, central access and Angkor departures.
  • Phnom Penh: Daun Penh and Riverside suit first-time sightseeing; BKK1 has a larger cafe and restaurant concentration.
  • Battambang: the Sangkae River and central market area provide convenient access to the old town.
  • Kampot: stay near the river for town access or outside the center for countryside and pepper-farm travel.
  • Kep: the coast and Crab Market area work best for seafood-focused stays.
  • Sihanoukville: most useful for a night before or after a flight or island ferry.
  • Koh Rong: choose Koh Touch for more activity or quieter beaches for resort-focused stays.
  • Koh Rong Sanloem: suitable for travelers prioritizing a slower island experience.
  • Kratie: the Mekong riverfront is the most practical base for dolphin-watching trips.
  • Mondulkiri: Sen Monorom is the main base for waterfalls and highland experiences.
  • Ratanakiri: Banlung is the practical base for Yeak Laom and surrounding highland routes.

Festivals and Religious Traditions in Cambodia

Cambodia’s most important festivals connect Theravada Buddhism, agriculture, ancestor remembrance and the country’s seasonal water cycle. Festival dates can affect transport, business hours and accommodation demand, particularly during Khmer New Year and Pchum Ben.

Khmer New Year, Chaul Chnam Thmey is Cambodia’s largest annual family celebration and normally takes place in mid-April. Homes and pagodas are cleaned and decorated, families gather, Buddha images are washed and traditional games fill public spaces. The official 2026 public holidays were April 14 to 16.

Pchum Ben is a 15-day Buddhist period of ancestor remembrance. Families visit pagodas with food offerings and prayers for deceased relatives. The principal 2026 public holidays fall on October 10 to 12.

Royal Ploughing Ceremony is a royal agricultural tradition marking the beginning of the farming season. The ceremony symbolically predicts agricultural conditions for the coming year. The 2026 public holiday fell on May 5.

Bon Om Touk, the Water Festival traditionally celebrates the seasonal relationship between the Mekong and Tonle Sap, with long-boat racing among its best-known activities. It normally falls around the full moon in November.

2026 update: the Cambodian government suspended the main Phnom Penh Water Festival celebrations scheduled for November 23 to 25, 2026. The three public holidays remain, and provincial authorities may still organize local celebrations according to local conditions.

Travelers planning around religious events can use Cambodia’s major festivals for broader cultural background, while checking the current year’s official calendar for exact dates.

What to Eat in Cambodia

Khmer cooking combines rice, freshwater fish, herbs, fermented flavors and aromatic kroeung pastes rather than relying mainly on intense chili heat. Regional products such as Kampot pepper and Battambang rice give Cambodian cuisine strong local identities beyond the better-known fish amok.

  • Fish amok: fish, egg, coconut and kroeung traditionally steamed into a fragrant custard-like dish.
  • Bai sach chrouk: grilled pork with rice, pickles and broth, commonly eaten for breakfast.
  • Num banh chok: fermented rice noodles served with fish-based curry, herbs and fresh vegetables.
  • Khmer red curry: coconut-based curry generally milder in chili than many neighboring versions.
  • Prahok: fermented fish paste used as a fundamental seasoning across many Khmer dishes.
  • Kep crab: blue swimmer crab commonly stir-fried with fresh green Kampot pepper.
  • Kampot pepper: geographically protected pepper produced in the Kampot and Kep region since long before modern tourism.
  • Phka rumdoul rice: fragrant Battambang-associated jasmine rice highlighted in the city’s UNESCO gastronomy identity.
SpecialtyBest place to try itRegional context
Fish amokSiem Reap or Phnom PenhWidely available representation of Khmer restaurant cuisine
Num banh chokMorning markets countrywideEveryday Cambodian breakfast tradition
Kep crab with Kampot pepperKepDirect connection between Cambodia’s coast and pepper-growing region
Rice and local produceBattambangCambodia’s first UNESCO Creative City of Gastronomy

Practical Cambodia Travel Tips for International Visitors

  • Stay on marked routes in rural areas: landmines and unexploded ordnance remain outside cleared paths in parts of Cambodia, including some remote temple regions.
  • Protect bags and phones near traffic: motorcycle snatch theft can target pedestrians and passengers in open tuk-tuks.
  • Prevent mosquito bites: dengue is a year-round risk; malaria risk is concentrated mainly in rural and forested areas rather than central Phnom Penh, Siem Reap or the main Angkor complex.
  • Avoid untreated freshwater swimming: rivers and lakes can carry parasitic and waterborne infections.
  • Dress correctly at Angkor: sacred areas prohibit bare shoulders and shorts or skirts above the knees; do not touch carvings or climb loose stones.
  • Do not give money or candy to children at Angkor: the official visitor code recommends supporting recognized organizations instead.
  • Carry clean cash: damaged US-dollar notes may be rejected, while riel remains useful for small everyday purchases.
  • Save Cambodia’s emergency numbers: police 117, fire 118 and ambulance 119; medical evacuation insurance is useful for remote provinces and islands.

Cambodia Travel FAQ

Is mobile internet reliable in Cambodia?

Mobile data and Wi-Fi are generally reliable in Phnom Penh, Siem Reap and larger towns. Coverage can become weaker on islands, in forests and in remote parts of Mondulkiri, Ratanakiri and the Cardamom Mountains.

Can I drink tap water in Cambodia?

Travelers should use sealed bottled water or properly treated drinking water. Avoid swallowing untreated freshwater while swimming, and use extra care with water sources during rural or trekking trips.

What voltage and plugs are used in Cambodia?

Cambodia uses 230 V electricity at 50 Hz. Plug types A, C and G are commonly found, so an international travel adapter is useful when moving between different hotels.

Is English widely spoken in Cambodia?

English is commonly used in major tourism areas such as Siem Reap, Phnom Penh and established hotels. Khmer remains the national language, and English becomes less predictable in rural villages and remote provinces.