When to go to Koh Samui?
Chaweng gives Koh Samui its long stretch of sand and its nightlife, but the island grows quieter the further round you go. The Big Buddha at Wat Phra Yai looks out over the north coast in gold, the Na Muang waterfalls drop into pools worth the walk, and Bophut's Fisherman's Village keeps its old shopfronts and a Friday market of seafood and street food.
The best time to go
For the best weather in Koh Samui, aim for January to June, August.
See also: Where to go in January? · Where to go in February? · Where to go in March? · Where to go in April?
Month-by-month weather in Koh Samui
| Month | ☀️ h/day | 🌧️ mm | 🌡️ °C | Score /100 |
|---|---|---|---|---|
| January | 10.5 | 56 | 24 | 75 |
| February | 10.4 | 82 | 24 | 73 |
| March | 10.9 | 47 | 25 | 79 |
| April | 11.1 | 81 | 27 | 76 |
| May | 10.2 | 136 | 26 | 67 |
| June | 10.0 | 80 | 26 | 69 |
| July | 8.2 | 142 | 25 | 59 |
| August | 9.7 | 115 | 26 | 66 |
| September | 8.9 | 138 | 25 | 60 |
| October | 9.3 | 230 | 24 | 55 |
| November | 8.0 | 303 | 24 | 45 |
| December | 9.2 | 222 | 24 | 57 |
Estimated from 3 years of data. The score (0–100) combines sunshine, dry weather, clear skies and temperature.
The climate in brief
In Koh Samui, the sunniest month is April, and the driest is March (about 47 mm). Temperatures peak in April (about 27°C). Over the year, an average of 1,633 mm of rain falls, and 7 months in 12 offer ideal weather for a trip.
What to do in Koh Samui?
- Chaweng beach
- Big Buddha (Wat Phra Yai)
- Na Muang waterfalls
- Fisherman's Village (Bophut, Friday market)
Practical info
- Country: Thailand
Destinations near Koh Samui
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