Chiang Rai weather in May 2025

Expect daytime maximum temperatures of 33°C in Chiang Rai in May and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 17 days with some rainfall and typically 202 mm of rainfall in the month.

  • 33°C maximum daytime temperature in May in Chiang Rai33
    33°C max day temperature
  • 7 hours of sunshine per day
  • 17 days with some rainfall in May in Chiang Rai17
    17 days with some rainfall
  • 22°C minimum night-time temperature in May in Chiang Rai22
    22°C min night temperature
  • 13 hours of daylight per day in May in Chiang Rai13
    13 hours of daylight per day
  • Very high heat & humidity in May in Chiang RaiVH
    Very High heat & humidity
  • 202 mm monthly rainfall in May in Chiang Rai202
    202 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Chiang Rai11
    11+ (Extreme) UV index

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The May weather guide for Thailand (Chiang Rai) 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.

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

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How hot is it in Chiang Rai in May?

Daytime temperatures usually reach 33°C in Chiang Rai in May with very high heat and humidity, falling to 22°C at night.

How sunny is it in Chiang Rai in May?

There are normally 7 hours of bright sunshine each day in Chiang Rai in May - that's 55% of daylight hours.

Does it rain in Chiang Rai in May?

There are usually 17 days with some rain in Chiang Rai in May and the average monthly rainfall is 202mm.

Chiang Rai May sunrise & sunset times

Browse the sunrise and sunset times for Chiang Rai in May 2025. Select a month to view Chiang Rai sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:52 18:44
Friday, 16th May 2025 05:44 18:50
Saturday, 31st May 2025 05:41 18:56

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