Average annual temperature is 26.0 °C
Absolute maximum temperature: 40.1 °C
Absolute minimum temperature: 11.4 °C
Number of sunny days: 182 days
Number of rainy days: 183 days
Look at detailed online map of San Sebastían
* Weather data for San Sebastían 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) | 34.9 | 36.2 | 37.4 | 39.0 | 40.1 | 40.0 | 34.8 | 35.1 | 36.2 | 33.0 | 34.1 | 35.7 |
| Average daytime temperature (°C) | 31.5 | 32.3 | 34.4 | 37.0 | 37.1 | 36.0 | 32.1 | 32.6 | 32.9 | 31.4 | 30.9 | 30.9 |
| Average temperature (°C) | 23.9 | 24.4 | 26.7 | 28.6 | 28.7 | 28.5 | 25.6 | 25.8 | 25.8 | 24.9 | 24.5 | 23.9 |
| Average night temperature (°C) | 17.7 | 18.3 | 20.6 | 21.7 | 22.3 | 22.6 | 20.6 | 20.6 | 20.7 | 20.4 | 19.5 | 18.3 |
| Absolute minimum temperature (°C) | 13.1 | 15.8 | 18.4 | 18.9 | 20.8 | 19.5 | 18.1 | 18.0 | 19.7 | 18.3 | 16.6 | 11.4 |
| 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 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.6 | 12.0 | 12.5 | 12.9 | 13.1 | 13.0 | 12.6 | 12.2 | 11.8 | 11.4 | 11.2 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.4 | 10.7 | 11.0 | 11.6 | 11.7 | 11.0 | 10.5 | 10.2 | 10.6 | 10.0 | 9.1 | 10.0 |
| Precipitation (mm) | 0 | 7 | 27 | 1 | 21 | 128 | 247 | 190 | 175 | 245 | 86 | 9 |
| Sunny days | 30 | 25 | 22 | 24 | 15 | 12 | 7 | 4 | 2 | 6 | 14 | 21 |
| Rainy days | 1 | 3 | 9 | 6 | 16 | 18 | 24 | 27 | 28 | 25 | 16 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Sebastían is at