Average annual temperature is 26.7 °C
Absolute maximum temperature: 33.1 °C
Absolute minimum temperature: 21.7 °C
Number of sunny days: 8 days
Number of rainy days: 357 days
Look at detailed online map of Kota Siam
* Weather data for Kota Siam Malaysia 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 | 31.0 | 31.7 | 31.8 | 32.8 | 33.0 | 33.0 | 33.1 | 32.2 | 31.8 | 30.7 | 30.9 |
| Average daytime temperature (°C) | 29.2 | 29.6 | 30.0 | 30.6 | 31.0 | 31.2 | 31.1 | 30.8 | 30.5 | 30.1 | 29.9 | 29.6 |
| Average temperature (°C) | 25.7 | 26.0 | 26.4 | 27.1 | 27.6 | 27.6 | 27.3 | 27.0 | 26.8 | 26.5 | 26.3 | 26.0 |
| Average night temperature (°C) | 23.0 | 23.3 | 23.4 | 24.2 | 24.8 | 24.6 | 24.1 | 24.0 | 23.9 | 23.7 | 23.8 | 23.5 |
| Absolute minimum temperature (°C) | 21.7 | 22.0 | 22.0 | 22.0 | 23.9 | 23.2 | 23.1 | 22.8 | 22.7 | 22.7 | 22.8 | 22.9 |
| 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) | 11.9 | 12.0 | 12.1 | 12.2 | 12.3 | 12.4 | 12.3 | 12.3 | 12.1 | 12.0 | 11.9 | 11.9 |
| 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) | 8.3 | 9.2 | 9.8 | 9.4 | 9.2 | 9.5 | 9.3 | 9.1 | 7.6 | 7.6 | 7.1 | 7.2 |
| Precipitation (mm) | 295 | 245 | 224 | 278 | 303 | 255 | 164 | 377 | 345 | 415 | 504 | 761 |
| Sunny days | 2 | 1 | 0 | 0 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 |
| Rainy days | 29 | 27 | 31 | 30 | 29 | 28 | 30 | 31 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Kota Siam is at