Koh Chang weather in May 2025

Expect 31°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Koh Chang in May. Check more long-term weather averages for Koh Chang in May before you book your next holiday to Thailand in 2025/2026.

31
31°C max day temperature
6
6 hours of sunshine per day
20
20 days with some rainfall
24
24°C min night temperature
13
13 hours of daylight per day
VH
Very High heat & humidity
351
351 mm of monthly rainfall
11
11+ (Extreme) UV index
30
30°C sea temperature

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The May weather guide for Thailand (Koh Chang) 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)

More about Thailand

How hot is it in Koh Chang in May?

Daytime temperatures usually reach 31°C in Koh Chang in May with very high heat and humidity, falling to 24°C at night.

How sunny is it in Koh Chang in May?

There are normally 6 hours of bright sunshine each day in Koh Chang in May - that's 48% of daylight hours.

How warm is the sea around Koh Chang in May?

The average sea temperature around Koh Chang in May is 30°C.

Does it rain in Koh Chang in May?

There are usually 20 days with some rain in Koh Chang in May and the average monthly rainfall is 351mm.

Koh Chang May sunrise & sunset times

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

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

Date	Sunrise times	Sunset times
Thursday, 1st May 2025	05:51	18:25
Friday, 16th May 2025	05:47	18:28
Saturday, 31st May 2025	05:45	18:32

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Thailand - quick facts
Flight time^✝	15 hours
Time difference	UK +7 hours
Language(s)	Thai, Isan
Currency	Thai Baht
Electricity	A + B + C + O plug (230V)
Driving side	Left
Why visit?	Beaches Culture Nature Nightlife
Tourist info	Tourism Authority of Thailand