Average annual temperature is 13.0 °C
Absolute maximum temperature: 28.7 °C
Absolute minimum temperature: -3.4 °C
Number of sunny days: 114 days
Number of rainy days: 251 days
Look at detailed online map of San Sebastián
* Weather data for San Sebastián 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) | 19.4 | 23.0 | 24.2 | 24.7 | 24.3 | 28.7 | 24.4 | 26.3 | 24.6 | 21.8 | 23.3 | 18.1 |
| Average daytime temperature (°C) | 15.3 | 16.8 | 18.9 | 18.3 | 19.5 | 24.2 | 22.0 | 22.2 | 21.8 | 17.9 | 15.4 | 13.4 |
| Average temperature (°C) | 8.7 | 10.2 | 12.2 | 12.7 | 13.9 | 18.3 | 16.9 | 16.9 | 16.0 | 12.9 | 10.0 | 7.6 |
| Average night temperature (°C) | 3.7 | 4.7 | 6.6 | 7.7 | 9.0 | 12.2 | 11.3 | 11.4 | 10.9 | 9.0 | 6.3 | 3.5 |
| Absolute minimum temperature (°C) | -2.0 | -3.4 | -2.8 | 3.5 | 5.4 | 7.4 | 9.2 | 9.9 | 5.8 | 3.5 | 0.4 | -2.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 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 | 11.3 | 12.0 | 12.8 | 13.4 | 13.7 | 13.5 | 13.0 | 12.3 | 11.6 | 10.9 | 10.6 |
| 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) | 9.7 | 10.3 | 10.5 | 11.0 | 11.1 | 12.7 | 12.3 | 11.9 | 11.2 | 8.7 | 7.9 | 8.2 |
| Precipitation (mm) | 4 | 5 | 67 | 114 | 247 | 55 | 109 | 82 | 78 | 180 | 125 | 26 |
| Sunny days | 23 | 21 | 12 | 3 | 1 | 7 | 1 | 3 | 6 | 7 | 15 | 15 |
| Rainy days | 8 | 7 | 19 | 27 | 30 | 23 | 30 | 28 | 24 | 24 | 15 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Sebastián is at