The climate in Ko Samui during June can be summarized as hot, humid and damp.
June is in the summer in Ko Samui and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (89°F), whilst at night 24°C (76°F) is normal.
Daytime temperature | 31.5°C 88.6°F |
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Nightly temperature | 24.4°C 75.8°F |
Average temperature | 27.9°C 82.2°F |
Daily sunshine | 6 hrs |
Avg rainfall | 118 mm 4.6 ins |
Rainy days | 16 days |
Sea temperature | 29.8°C 85.7°F |
Humidity | 77% |
Windspeed | 9kph 6 mph |
On average June is the 4th driest month of the year in Ko Samui with around 118mm 4.6 inches of rain making it a damp time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Ko Samui in June 2025.
Hottest month: | April | 31.6°C 88.9°F |
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Driest month: | February | 39mm 1.5ins |
Sunniest month: | February | 8.7hrs |
Coldest month: | January | 28.4°C 83.1°F |
Wettest month: | November | 463mm 18.2ins |