Thailand weather

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Below are the temperatures expected today at popular destinations in Thailand. Select a destination to compare today's forecast with average weather conditions.

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

The weather guide for Thailand 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.

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When is it hottest 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.

Does it ever rain in Thailand?

September is usually the wettest month in Bangkok, Thailand with 292mm on average. In September there are normally 20 days 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 75% of daylight hours; that's 9 hours of sunshine per day.

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

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Compare Thailand weather with the USA

Below the Thailand weather chart shows average maximum daytime temperature for Thailand (Bangkok) and the USA (Washington).

Maximum daytime temperature (°C)

Thailand (Bangkok)

USA (Washington)

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Dec

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

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Thailand weather 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.

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.