Which is the hottest month in Thailand?

The hottest time of year in Bangkok, Thailand is normally April. Expect maximum daytime temperatures to reach 35°C with extreme heat and humidity.

Best time to visit Thailand

Q: When is the best time to visit Thailand?

The best time to visit Thailand (Bangkok) is January and February based on the following average weather conditions. Daily hours of sunshine = 10 hours or more.

Q: Which month has the most rain in Thailand?

In terms of rainfall, September is usually the wettest month in Bangkok, Thailand with 292mm on average. There are normally 20 days in September with some rain.

Q: When is it sunniest in Thailand?

The sunniest time of year in Bangkok, Thailand is normally January with bright sunshine on average for 75% of daylight hours; that's 9 hours of sunshine per day.

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

Thailand by month

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

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Destination

Top Thailand destinations

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

All Thailand destinations

When is the best time to visit Thailand?

The best time to visit Thailand (Bangkok) is January and February based on the following average weather conditions.

Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

4.5
Jan
4.5
Feb
4
Mar
4
Apr
3
May
2.5
Jun
2.5
Jul
1.5
Aug
1.5
Sep
2.5
Oct
4
Nov
4
Dec

Change criteria

Hours of Sunshine (daily)

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

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Thailand (Bangkok) 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)

Thailand overview

This southeast Asian country, which lies between Cambodia, Burma and Laos, is one of the world's top winter-sun destinations.

November to February is the best time to visit, when dry and sunny weather prevails, though Chiang Mai and the region around the northern hills can be chilly in the evenings as the northeast monsoon winds blow in from China, bringing dryer air to high ground.

Holidays to Railay Beach, Krabi, Thailand © Netfalls - Fotolia.com

The same winds, however, can bring rain to southern Thailand if they sweep in from the Pacific across the Gulf of Siam; this means the far south, which has an equatorial climate, is hotter and muggier and has a longer rainy season than the rest of the country, which has a tropical monsoon climate.

Thailand's main rains come in May and last until October, but the run-up to them starts as early as February, when temperatures start to climb and humidity increases.

Avoid visiting in the height of the rainy season if you can, as heat, damp and humidity combine to make the atmosphere like a wet blanket.

What to pack for Thailand weather

Take light clothes with something warmer for winter nights in the north, and rainwear in the wet season.

More about Thailand

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

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

Thailand travel guide - essential info

Below is a beginner's guide to Thailand 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.

Thailand - quick facts
Flight time^✝	15 hours
Time difference	UK +7 hours
Language(s)	Thai, Isan
Currency	Thai Baht
Electricity	A + B + C + O plug (230V)
Driving side	Left

Why visit Thailand?

Considering a holiday to the Thailand? 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
Nature
Nightlife

Thailand tourist information

Tourism Authority of Thailand

✝ = Typical flight time from the UK.

Travelling to Thailand?
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Thailand travel guidance

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

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

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

Thailand travel health

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

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

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

Note: CDC - Centers for Disease Control and Prevention

Thailand travel features

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

Thailand FAQs

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

Which month has the most rain in Thailand?

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

When is it sunniest in Thailand?

The sunniest time of year in Bangkok, Thailand 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 Thailand?

The sea is usually at its warmest in Bangkok, Thailand in January when the water temperature reaches 0°C.

What is the flight time to Thailand from the UK?

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

What is the time difference between Thailand and the UK?

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

What is the main language spoken in Thailand?

The main languages spoken in Thailand are Thai and Isan.

What is the currency in Thailand?

The currency in Thailand is the Thai Baht (THB).

Send money to Thailand with Wise.com^*, World Remit^* and XE Money Transfers^*.

Which plugs are used in Thailand?

Thailand uses electrical plug type A + B + C + O (230 Volts).

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

They drive on the left side of the road in Thailand.

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

Thailand travel deals

Holidays to Thailand

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