Average annual temperature is 20.5 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: 0.0 °C
Number of sunny days: 281 days
Number of rainy days: 84 days
Look at detailed online map of San Sebastian
* Weather data for San Sebastian Mexico is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 27.5 | 29.7 | 32.0 | 34.4 | 34.5 | 38.1 | 35.0 | 34.9 | 34.1 | 31.1 | 28.6 | 23.5 |
| Average daytime temperature (°C) | 24.0 | 25.9 | 29.2 | 29.0 | 29.9 | 34.8 | 31.9 | 31.8 | 30.8 | 26.0 | 22.0 | 19.3 |
| Average temperature (°C) | 15.3 | 17.1 | 20.7 | 21.4 | 22.6 | 27.4 | 24.7 | 24.7 | 24.2 | 19.6 | 15.1 | 12.6 |
| Average night temperature (°C) | 7.7 | 9.4 | 12.0 | 13.8 | 15.4 | 19.2 | 17.5 | 17.7 | 16.7 | 13.8 | 9.7 | 6.8 |
| Absolute minimum temperature (°C) | 3.5 | 1.6 | 5.0 | 8.8 | 13.0 | 16.5 | 15.4 | 13.8 | 14.0 | 8.3 | 3.3 | 0.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.8 | 11.4 | 12.0 | 12.7 | 13.3 | 13.6 | 13.5 | 13.0 | 12.3 | 11.6 | 11.0 | 10.7 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.8 | 10.0 | 11.1 | 11.1 | 11.5 | 12.3 | 12.2 | 11.6 | 11.4 | 9.2 | 8.1 | 8.0 |
| Precipitation (mm) | 0 | 0 | 1 | 10 | 26 | 4 | 32 | 25 | 5 | 68 | 67 | 10 |
| Sunny days | 30 | 28 | 27 | 23 | 21 | 28 | 17 | 19 | 23 | 19 | 20 | 26 |
| Rainy days | 1 | 0 | 4 | 7 | 10 | 2 | 14 | 12 | 7 | 12 | 10 | 5 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Sebastian is at