Thailand in August: where is it warmest?
In August, Bangkok is the warmest place with 32 °C by day, Ko Pha-ngan the coolest with 26 °C. 10 of 12 destinations have good holiday weather.
All destinations in August, warmest first
Long-term averages for the month: daytime high, sea, sunshine and rainy days.
| Place | Score | Air | Sea | Sun | Rain days |
|---|---|---|---|---|---|
| Bangkok | 25 | 32° | – | 4 h | 23 |
| Hua Hin | 64 | 31° | 29° | 4 h | 23 |
| Koh Samui | 69 | 30° | 29° | 6 h | 21 |
| Pattaya | 68 | 30° | 30° | 5 h | 17 |
| Ao Nang, Krabi | 66 | 29° | 30° | 5 h | 25 |
| Chiang Mai | 37 | 29° | – | 4 h | 25 |
| Koh Tao | 69 | 28° | 29° | 6 h | 19 |
| Koh Lanta | 67 | 28° | 30° | 5 h | 25 |
| Patong, Phuket | 66 | 28° | 29° | 5 h | 26 |
| Khao Lak | 66 | 28° | 29° | 5 h | 26 |
| Phuket | 66 | 28° | 30° | 5 h | 26 |
| Ko Pha-ngan | 69 | 26° | 29° | 6 h | 20 |
Thailand in August: quick answers
Thailand in August: where is it warmest?
The warmest places in August are Bangkok (32 °C), Hua Hin (31 °C) and Koh Samui (30 °C).
Thailand in August: where is the sea warmest?
The sea is warmest at Pattaya (30 °C), Ao Nang, Krabi (30 °C) and Koh Lanta (30 °C).
Thailand in August: where is the weather best?
The best holiday weather in August – warm, sunny and dry – is in Koh Samui, Koh Tao and Ko Pha-ngan.
Thailand month by month
Thailand: weather & best time to visit
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). Sources & licences