Average annual temperature is 27.0 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: 20.0 °C
Number of sunny days: 41 days
Number of rainy days: 324 days
Look at detailed online map of San Sebastian
* Weather data for San Sebastian 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) | 29.3 | 31.4 | 33.2 | 34.3 | 34.2 | 32.6 | 33.6 | 32.1 | 32.2 | 32.2 | 31.9 | 31.7 |
| Average daytime temperature (°C) | 27.7 | 29.1 | 30.8 | 32.0 | 31.9 | 31.0 | 30.7 | 30.1 | 30.7 | 30.3 | 29.8 | 29.9 |
| Average temperature (°C) | 25.0 | 25.5 | 26.2 | 27.7 | 28.2 | 27.7 | 27.6 | 27.5 | 27.4 | 27.1 | 26.9 | 26.5 |
| Average night temperature (°C) | 23.5 | 23.2 | 22.7 | 24.6 | 25.6 | 25.4 | 25.4 | 25.7 | 25.3 | 25.0 | 25.1 | 24.5 |
| Absolute minimum temperature (°C) | 22.1 | 21.7 | 20.0 | 22.6 | 24.7 | 24.4 | 24.3 | 24.9 | 24.6 | 24.1 | 24.4 | 23.5 |
| 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) | 11.4 | 11.7 | 12.1 | 12.4 | 12.8 | 12.9 | 12.9 | 12.6 | 12.2 | 11.8 | 11.5 | 11.3 |
| 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) | 8.4 | 9.8 | 11.3 | 10.6 | 10.3 | 10.0 | 9.0 | 10.2 | 8.6 | 9.1 | 9.3 | 9.7 |
| Precipitation (mm) | 141 | 48 | 21 | 167 | 189 | 272 | 350 | 168 | 314 | 138 | 103 | 84 |
| Sunny days | 8 | 9 | 15 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 2 |
| Rainy days | 23 | 19 | 16 | 28 | 30 | 29 | 30 | 30 | 30 | 31 | 29 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Sebastian is at