Thailand weather in May 2025

Expect daytime maximum temperatures of 34°C in Thailand in May and extreme heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 15 days with some rainfall and typically 182 mm of rainfall in the month.

  • 34°C maximum daytime temperature in May in Thailand (Bangkok)34
    34°C max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in May in Thailand (Bangkok)15
    15 days with some rainfall
  • 26°C minimum night-time temperature in May in Thailand (Bangkok)26
    26°C min night temperature
  • 13 hours of daylight per day in May in Thailand (Bangkok)13
    13 hours of daylight per day
  • Extreme heat & humidity in May in Thailand (Bangkok)E
    Extreme heat & humidity
  • 182 mm monthly rainfall in May in Thailand (Bangkok)182
    182 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Thailand (Bangkok)11
    11+ (Extreme) UV index

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The May weather guide for Thailand (Bangkok) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Thailand destinations

Below are average maximum temperatures at popular countries, regions and places in Thailand in May. Select a holiday destination to see more weather parameters.

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

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More about Thailand

How hot is it in Thailand in May?

Daytime temperatures usually reach 34°C in Bangkok, Thailand in May with extreme heat and humidity, falling to 26°C at night.

How sunny is it in Thailand in May?

There are normally 7 hours of bright sunshine each day in Bangkok, Thailand in May - that's 52% of daylight hours.

Does it rain in Thailand in May?

There are usually 15 days with some rain in Bangkok, Thailand in May and the average monthly rainfall is 182mm.

Thailand May sunrise & sunset times

Browse the sunrise and sunset times for Thailand in May 2025. Select a month to view Thailand sunrise and sunset times for the next 12 months. The Thailand sunrise and sunset times shown below are for Bangkok.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:56 18:34
Friday, 16th May 2025 05:51 18:38
Saturday, 31st May 2025 05:49 18:42

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