Ko Samui in April
The weather in April
In April, Ko Samui averages daytime highs of 29° and night-time lows of 27° — hot weather by day. Expect around 76 mm of precipitation spread over about 17 wet days, with average cloud cover near 35%.
Temperatures are much the same as in March, and May brings little change. The sea averages 30°, comfortably warm for swimming.
April scores 48/100 — mixed conditions for sightseeing — and ranks 5th of the twelve months for Ko Samui. For the most comfortable weather, consider January, February and March instead.
Around the middle of the month the sun rises at 06:11 and sets at 18:31 local time, giving 12 h 20 min of daylight. Days lengthen by 14 minutes over the month.
Why 48/100?
How the score for April is builtBeach score this month: 56/100 (adds sea temperature and heat).
Comfort peaks for daytime highs between 18° and 25°C (64–77°F).
Thailand's best in April
Ko Samui in April: quick answers
Is April a good time to visit Ko Samui?
April scores 48/100 for Ko Samui, which we rate as mixed. Average highs are 29°C with 17 wet days.
How warm is Ko Samui in April?
Daytime highs average 29°C and night-time lows 27°C in April.
Does it rain a lot in Ko Samui in April?
Ko Samui receives about 76 mm of precipitation in April, falling on around 17 days.
Can you swim in Ko Samui in April?
The sea averages 30°C in April, warm enough for most swimmers.