Thailand climate by month
8-year averages · when to visit| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bangkok | 32° | 32° | 33° | 34° | 33° | 33° | 32° | 31° | 31° | 31° | 31° | 32° |
| Phuket | 30° | 32° | 33° | 32° | 31° | 30° | 30° | 30° | 29° | 29° | 29° | 29° |
| Koh Samui | 26° | 26° | 28° | 29° | 29° | 29° | 29° | 29° | 27° | 26° | 26° | 25° |
| Chiang Mai | 27° | 30° | 34° | 35° | 34° | 31° | 30° | 29° | 30° | 29° | 29° | 27° |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bangkok | 4 | 7 | 8 | 13 | 21 | 24 | 27 | 27 | 28 | 22 | 10 | 4 |
| Phuket | 10 | 7 | 12 | 19 | 26 | 22 | 21 | 22 | 24 | 29 | 26 | 17 |
| Koh Samui | 18 | 15 | 11 | 16 | 20 | 17 | 18 | 19 | 21 | 28 | 25 | 19 |
| Chiang Mai | 4 | 2 | 2 | 7 | 20 | 27 | 28 | 30 | 26 | 17 | 9 | 3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Phuket | 29° | 30° | 31° | 31° | 32° | 31° | 30° | 31° | 30° | 30° | 30° | 29° |
| Koh Samui | 29° | 29° | 30° | 32° | 32° | 31° | 31° | 31° | 30° | 30° | 29° | 29° |
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
Bangkok climate in August
8-year averages · when to visitBest months: January–March, May–June, August–December · August: Good
| July | August | September | |
|---|---|---|---|
| Average temperature | → 28°C | 28°C | ▼ 27°C |
| Typical high | ▼ 32°C | 31°C | → 31°C |
| Typical low | ▼ 26°C | 25°C | → 25°C |
| Precipitation | ▼ 208 mm | 205 mm | ▲ 316 mm |
| Wet days | → 27 d | 27 d | ▲ 28 d |
| Sunshine per day | → 7.7 h | 7.7 h | ▲ 7.8 h |
| Cloud cover | ▼ 40% | 39% | ▼ 36% |
| Midday UV | → 12 | 12 | → 12 |
| Daylight | 12:51 | 12:34 | 12:12 |
| Our take | Acceptable | Good | Good |
August temperatures day by day daily mean + smoothed trend · °C
August precipitation day by day mm
August UV day by day clear-sky midday value
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
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Updated: 12:32 AM
Thailand · 12 weather points · Climate reference: Bangkok (13.76°N, 100.50°E) · Asia/Bangkok