Ko Samui weather in May 2022

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  • 32°C maximum daytime temperature in May in Ko Samui32
    32°C max day temperature
  • 6 hours of sunshine per day
  • 17 days with some rainfall in May in Ko Samui17
    17 days with some rainfall
  • 25°C minimum night-time temperature in May in Ko Samui25
    25°C min night temperature
  • 13 hours of daylight per day in May in Ko Samui13
    13 hours of daylight per day
  • Very high heat & humidity in May in Ko SamuiVH
    Very High heat & humidity
  • 172 mm monthly rainfall in May in Ko Samui172
    172 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Ko Samui11
    11+ (Extreme) UV index
  • 30°C sea temperature in May in Ko Samui30
    30°C sea temperature
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The May weather guide for Ko Samui, Thailand 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.

How hot is it in Ko Samui in May?

Daytime temperatures usually reach 32°C in Ko Samui in May with very high heat and humidity, falling to 25°C at night.

How sunny is it in Ko Samui in May?

There are normally 6 hours of bright sunshine each day in Ko Samui in May - that's 51% of daylight hours.

How warm is the sea around Ko Samui in May?

The average sea temperature around Ko Samui in May is 30°C.

Does it rain in Ko Samui in May?

There are usually 17 days with some rain in Ko Samui in May and the average monthly rainfall is 172mm.

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

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Ko Samui sunrise & sunset times for May 2022

Browse the sunrise and sunset times for Ko Samui in May 2022. Select a month to view Ko Samui sunrise & sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st May 2022 06:03 18:31
Monday, 16th May 2022 05:59 18:33
Tuesday, 31st May 2022 05:58 18:37
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