Ko Samui weather in March 2023

  • 30°C maximum daytime temperature in March in Ko Samui30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 5 days with some rainfall in March in Ko Samui5
    5 days with some rainfall
  • 24°C minimum night-time temperature in March in Ko Samui24
    24°C min night temperature
  • 12 hours of daylight per day in March in Ko Samui12
    12 hours of daylight per day
  • Very high heat & humidity in March in Ko SamuiVH
    Very High heat & humidity
  • 54 mm monthly rainfall in March in Ko Samui54
    54 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in March in Ko Samui11
    11+ (Extreme) UV index
  • 29°C sea temperature in March in Ko Samui29
    29°C sea temperature
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The March weather guide for Thailand (Ko Samui) 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.

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

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How hot is it in Ko Samui in March?

Daytime temperatures usually reach 30°C in Ko Samui in March with very high heat and humidity, falling to 24°C at night.

How sunny is it in Ko Samui in March?

There are normally 8 hours of bright sunshine each day in Ko Samui in March - that's 70% of daylight hours.

How warm is the sea around Ko Samui in March?

The average sea temperature around Ko Samui in March is 29°C.

Does it rain in Ko Samui in March?

There are usually 5 days with some rain in Ko Samui in March and the average monthly rainfall is 54mm.

Ko Samui March sunrise & sunset times

Browse the sunrise and sunset times for Ko Samui in March 2023. Select a month to view Ko Samui sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st March 2023 06:34 18:30
Thursday, 16th March 2023 06:26 18:31
Friday, 31st March 2023 06:18 18:30

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