Average annual temperature is 27.5 °C
Absolute maximum temperature: 42.4 °C
Absolute minimum temperature: 13.9 °C
Number of sunny days: 158 days
Number of rainy days: 207 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) | 32.8 | 35.0 | 38.1 | 40.2 | 40.2 | 42.4 | 37.7 | 37.6 | 35.8 | 37.2 | 33.9 | 33.4 |
| Average daytime temperature (°C) | 29.8 | 31.5 | 34.5 | 37.0 | 37.4 | 39.0 | 36.1 | 35.3 | 34.3 | 33.3 | 30.9 | 29.0 |
| Average temperature (°C) | 24.3 | 25.3 | 27.6 | 29.3 | 29.7 | 30.9 | 29.1 | 28.6 | 27.7 | 27.3 | 25.7 | 23.7 |
| Average night temperature (°C) | 20.1 | 20.6 | 22.2 | 23.2 | 23.7 | 25.0 | 24.8 | 24.5 | 23.8 | 23.1 | 22.0 | 20.1 |
| Absolute minimum temperature (°C) | 14.6 | 15.7 | 18.7 | 19.1 | 18.6 | 22.3 | 23.6 | 23.0 | 22.1 | 18.7 | 19.6 | 13.9 |
| 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 | 10.0 |
| Daylight mean duration (h) | 11.0 | 11.5 | 12.0 | 12.6 | 13.1 | 13.4 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 10.9 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.6 | 9.8 | 10.2 | 11.6 | 11.5 | 11.6 | 10.8 | 11.0 | 10.5 | 10.1 | 8.9 | 8.7 |
| Precipitation (mm) | 25 | 12 | 23 | 29 | 43 | 62 | 81 | 128 | 152 | 53 | 33 | 71 |
| Sunny days | 19 | 18 | 23 | 23 | 16 | 11 | 7 | 3 | 4 | 11 | 9 | 14 |
| Rainy days | 12 | 10 | 8 | 7 | 15 | 19 | 24 | 28 | 26 | 20 | 21 | 17 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Sebastián is at