Average annual temperature is 25.5 °C
Absolute maximum temperature: 36.7 °C
Absolute minimum temperature: 18.8 °C
Number of sunny days: 7 days
Number of rainy days: 358 days
Look at detailed online map of Rom Sai
* Weather data for Rom Sai Thailand is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 30.7 | 29.8 | 34.0 | 36.7 | 35.0 | 33.4 | 35.6 | 33.4 | 32.8 | 32.3 | 31.4 | 30.2 |
| Average daytime temperature (°C) | 27.3 | 28.2 | 30.2 | 33.3 | 33.1 | 31.9 | 32.0 | 31.7 | 30.2 | 29.7 | 28.0 | 27.8 |
| Average temperature (°C) | 23.5 | 24.3 | 25.2 | 27.0 | 26.9 | 26.2 | 26.5 | 26.1 | 25.6 | 25.1 | 24.5 | 24.4 |
| Average night temperature (°C) | 21.1 | 21.4 | 21.2 | 22.8 | 23.3 | 22.8 | 23.0 | 22.7 | 23.0 | 22.5 | 22.5 | 22.4 |
| Absolute minimum temperature (°C) | 18.8 | 19.6 | 18.8 | 21.2 | 22.4 | 21.7 | 21.9 | 21.3 | 21.7 | 21.8 | 21.5 | 21.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 | 12.4 | 12.3 | 12.2 | 12.0 | 11.8 | 11.8 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 5.7 | 9.1 | 10.3 | 10.5 | 9.3 | 9.5 | 8.6 | 9.5 | 7.1 | 5.7 | 4.3 | 6.2 |
| Precipitation (mm) | 387 | 165 | 76 | 112 | 220 | 321 | 214 | 236 | 334 | 383 | 583 | 564 |
| Sunny days | 0 | 0 | 3 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
| Rainy days | 31 | 28 | 28 | 29 | 30 | 29 | 31 | 31 | 29 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Rom Sai during the most sunny months:
The largest precipitation sum in Rom Sai is at