Koh Samui weather in February
Temperature, sea and sunshine in February: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in February
Excellent
Best time to visit: January – April
What is the weather like in Koh Samui in February?
In February, Koh Samui is hot: daytime highs average 28 °C, and even at night it stays warm at around 26 °C. The sea averages 28.2 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. Rain falls on about 6 days, adding up to 38 mm. The air is often humid and muggy. All in all, February is an excellent month for a holiday in Koh Samui.
February compared
How the weather changes from January to March. Tap a month to open it.
| JanuaryJan | FebruaryFeb | MarchMar | |
|---|---|---|---|
| Score | 83 | 93 | 90 |
| Day | 28° | 28° | 29° |
| Night | 26° | 26° | 27° |
| Sea | 28° | 28° | 29° |
| Sun | 7 h | 8 h | 8 h |
| Rain days | 10 | 6 | 9 |
More details for February
- Daylight
- 11 h 49 min06:40 – 18:29
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 28 daysdew point 18 °C or more
- Wind
- 17 km/haverage daily peak
- Cloud cover
- 49 %on average
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+7Asia/Bangkok
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %80 %
- Few rainy daysweight 20 %84 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in February
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
Koh Samui in February: quick answers
Is Koh Samui hot in February?
Yes. In February, Koh Samui is hot: daytime highs average 28 °C and nights stay around 26 °C.
Can you swim in Koh Samui in February?
Yes. In February the sea averages 28.2 °C – lovely and warm for swimming.
Does it rain much in Koh Samui in February?
Rain falls on about 6 days, adding up to 38 mm.
Koh Samui month by month
The whole year in Koh SamuiAll destinations: ThailandWhere to go in FebruarySea temperature in February
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)