Average annual temperature is 17.1 °C
Absolute maximum temperature: 33.1 °C
Absolute minimum temperature: 2.8 °C
Number of sunny days: 185 days
Number of rainy days: 180 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) | 23.1 | 27.2 | 28.8 | 29.8 | 30.2 | 33.1 | 27.6 | 26.1 | 28.8 | 27.4 | 27.6 | 21.7 |
| Average daytime temperature (°C) | 20.8 | 23.2 | 26.1 | 27.5 | 26.1 | 29.3 | 25.0 | 24.2 | 25.6 | 23.5 | 23.5 | 19.4 |
| Average temperature (°C) | 13.5 | 15.3 | 17.7 | 19.4 | 19.0 | 21.7 | 18.1 | 17.3 | 18.4 | 16.6 | 15.6 | 12.5 |
| Average night temperature (°C) | 7.0 | 8.3 | 9.8 | 11.5 | 12.3 | 14.1 | 12.4 | 12.0 | 12.1 | 11.4 | 9.2 | 7.3 |
| Absolute minimum temperature (°C) | 4.9 | 3.5 | 5.6 | 9.2 | 9.9 | 12.3 | 10.2 | 10.1 | 10.8 | 7.8 | 6.4 | 2.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.1 | 13.3 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 11.0 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 | 10.0 |
| Sunshine mean duration (h) | 10.1 | 10.5 | 11.2 | 11.6 | 11.5 | 12.2 | 11.6 | 10.5 | 11.2 | 9.3 | 9.6 | 8.2 |
| Precipitation (mm) | 3 | 0 | 13 | 4 | 50 | 36 | 80 | 73 | 35 | 63 | 26 | 52 |
| Sunny days | 27 | 24 | 22 | 19 | 10 | 20 | 3 | 1 | 17 | 7 | 19 | 16 |
| Rainy days | 4 | 4 | 9 | 11 | 21 | 10 | 28 | 30 | 13 | 24 | 11 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Sebastián is at