Which is the hottest month in Cambodia?

The hottest time of year in Phnom Penh, Cambodia is normally May. Expect maximum daytime temperatures to reach 34°C with extreme heat and humidity.

Best time to visit Cambodia

Q: When is the best time to visit Cambodia?

The best time to visit Cambodia (Phnom Penh) is November and December based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

Q: Which month has the most rain in Cambodia?

In terms of rainfall, October is usually the wettest month in Phnom Penh, Cambodia with 263mm on average. There are normally 17 days in October with some rain.

Q: When is it sunniest in Cambodia?

The sunniest time of year in Phnom Penh, Cambodia is normally January with bright sunshine on average for 76% of daylight hours; that's 9 hours of sunshine per day.

Find the best time to visit Cambodia and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Cambodia by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Top Cambodia destinations

Below are the temperatures expected today at popular countries, regions and places in Cambodia. Select a destination to compare today's forecast with average weather conditions.

All Cambodia destinations

When is the best time to visit Cambodia?

The best time to visit Cambodia (Phnom Penh) is November and December based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

3.5
Jan
3.5
Feb
2
Mar
2
Apr
1.5
May
1.5
Jun
1.5
Jul
1.5
Aug
2
Sep
2.5
Oct
4
Nov
4
Dec

Change criteria

Max Day Temperature (°C)

32
Jan
32
Feb
34
Mar
34
Apr
34
May
33
Jun
32
Jul
32
Aug
31
Sep
31
Oct
30
Nov
30
Dec

Hours of Sunshine (daily)

9
Jan
9
Feb
8
Mar
8
Apr
7
May
6
Jun
5
Jul
5
Aug
5
Sep
6
Oct
8
Nov
9
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Cambodia (Phnom Penh) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)

Cambodia weather overview

Cambodia lies within the tropics and has a monsoon climate with rains arriving in May and lasting until October. Rainfall is heaviest in the south western hills and on the slopes surrounding the Gulf of Thailand. The rainy season brings cloudy days, hot and humid conditions and the risk of heat exhaustion. From December to April, the weather is largely hot and sunny although temperatures can fall quite low in the northern hills.

What to pack for Cambodia weather

Take light clothes, whatever the time of year, supplemented by warmer wear if you are travelling north in the winter and waterproofs for the rains.

More about Cambodia

Explore our complete guide to Cambodia with the latest travel advice for travellers and holidaymakers including official updates and local travel tips for Cambodia.

Essential travel guide
Travel guidance
Travel health
Travel features
Top travel deals
FAQs

Cambodia travel guide - essential info

Below is a beginner's guide to Cambodia with essential travel facts such as dominant language spoken, typical flight time from the UK and the local currency. You can also check whether visas are required and what plug adapter you need to pack.

Cambodia - quick facts
Flight time^✝	15 to 16 hours
Time difference	UK +7 hours
Language(s)	Khmer
Currency	Cambodian Riel
Electricity	A + C + G plug (230V)
Driving side	Right
Visa^✝	Yes

Why visit Cambodia?

Considering a holiday to the Cambodia? Here are some of the very good reasons it makes such a wonderful holiday destination be it for beaches or culture to ensure you get the most out of your 2025/2026 escape.

Beaches
Culture

Cambodia tourist information

Cambodia Ministry of Tourism

✝ = Typical flight time from the UK and visa requirements for UK travellers.

Travelling to Cambodia?
Hotels Flights eSIMs

Cambodia travel guidance

Check the latest travel guidance and advice on visiting Cambodia from official government sources (in english) from around the world including entry requirements and travel restrictions.

UK traveller advice for Cambodia - UK FCDO
Irish traveller advice for Cambodia - Department of Foreign Affairs, Ireland
Canadian travel advice for Cambodia - Government of Canada
US travel advisories for Cambodia - US Department of State
Safe travel advisories for Cambodia - Ministry of Foreign Affairs, New Zealand
Smarter traveller advice for Cambodia - Department of Foreign Affairs, Australia

Learn more about the current safety and security risks from terrorism, natural disasters and more. Read about the local laws and customs to consider when travelling around Cambodia.

Note: UK FCDO - UK Foreign, Commonwealth & Development Office

Cambodia travel health

Find out more about staying safe when travelling to Cambodia with the latest guidance on required vaccinations and recommended medication to take with you.

Vaccines & medicines for Cambodia - CDC
Health & vaccinations for Cambodia - TravelHealthPro, NaTHNac
How to stay safe & healthy in Cambodia - Fit for Travel, Public Health Scotland

Check out the general travel tips for staying safe and healthy in Cambodia, risks of preventable diseases and what to pack.

Note: CDC - Centers for Disease Control and Prevention

Cambodia travel features

Do you want to learn more about Cambodia? Read our latest features covering travel tips and insider destination guides on where to go and what to do in Cambodia.

Cambodia FAQs

Read our frequently asked questions about travelling to Cambodia including the current entry restrictions, driving side, electrical plugs used and much more.

Which month has the most rain in Cambodia?

In terms of rainfall, January is usually the wettest month in Phnom Penh, Cambodia with 0mm on average. There are normally no days in January with some rain.

When is it sunniest in Cambodia?

The sunniest time of year in Phnom Penh, Cambodia is normally January with bright sunshine on average for 0% of daylight hours; that's 0 hours of sunshine per day.

When is the sea warmest in Cambodia?

The sea is usually at its warmest in Phnom Penh, Cambodia in January when the water temperature reaches 0°C.

What is the flight time to Cambodia from the UK?

The flight time to Cambodia from the UK is typically 15 to 16 hours.

What is the time difference between Cambodia and the UK?

The time difference between Cambodia and the UK is UK time+7 hours.

What is the main language spoken in Cambodia?

The main language spoken in Cambodia is Khmer.

What is the currency in Cambodia?

The currency in Cambodia is the Cambodian Riel (KHR).

Send money to Cambodia with World Remit^*.

Which plugs are used in Cambodia?

Cambodia uses electrical plug type A + C + G (230 Volts).

Which side of the road do they drive on in Cambodia?

They drive on the right side of the road in Cambodia.

Find out more about driving in Cambodia with International Drivers Association^*.

Do you need a visa for Cambodia?

Yes, UK passport holders do need a visa to enter Cambodia.

Check Cambodia visa requirements for all passport holders with VisaHQ^*.

Cambodia travel deals

Holidays to Cambodia

Check out the latest deals, discount codes and special offers on holidays to Cambodia in 2025/2026. Pay low deposits and save with last minute holiday availability and free kids places.