Average annual temperature is 25.4 °C
Absolute maximum temperature: 32.6 °C
Absolute minimum temperature: 18.9 °C
Number of sunny days: 5 days
Number of rainy days: 360 days
Look at detailed online map of Siao
* Weather data for Siao Philippines is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 29.9 | 29.9 | 30.9 | 31.2 | 31.8 | 31.3 | 31.3 | 32.6 | 31.7 | 31.8 | 31.1 | 30.7 |
| Average daytime temperature (°C) | 27.7 | 28.6 | 29.3 | 30.0 | 30.2 | 29.7 | 29.5 | 30.2 | 29.9 | 30.1 | 29.6 | 29.1 |
| Average temperature (°C) | 24.2 | 24.6 | 24.9 | 25.6 | 26.1 | 25.7 | 25.6 | 25.9 | 25.7 | 25.6 | 25.4 | 25.2 |
| Average night temperature (°C) | 21.9 | 21.7 | 21.6 | 22.3 | 23.0 | 22.7 | 22.6 | 22.6 | 22.5 | 22.3 | 22.5 | 22.3 |
| Absolute minimum temperature (°C) | 20.7 | 20.2 | 18.9 | 21.0 | 22.0 | 21.7 | 20.9 | 20.7 | 21.6 | 21.2 | 21.1 | 20.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 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 | 12.5 | 12.5 | 12.5 | 12.4 | 12.2 | 12.0 | 11.8 | 11.7 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 5.7 | 8.5 | 9.1 | 9.6 | 9.5 | 9.0 | 8.5 | 9.6 | 9.1 | 9.3 | 9.3 | 9.1 |
| Precipitation (mm) | 469 | 301 | 282 | 278 | 300 | 346 | 236 | 249 | 258 | 273 | 265 | 229 |
| Sunny days | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 1 | 0 | 1 |
| Rainy days | 31 | 28 | 31 | 30 | 31 | 30 | 29 | 30 | 30 | 30 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siao is at