Average annual temperature is 22.2 °C
Absolute maximum temperature: 32.5 °C
Absolute minimum temperature: 11.4 °C
Number of sunny days: 101 days
Number of rainy days: 264 days
Look at detailed online map of Río San Sebastián
* Weather data for Río 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) | 29.6 | 30.8 | 30.5 | 31.4 | 32.5 | 30.8 | 30.2 | 30.2 | 28.2 | 27.6 | 28.6 | 29.9 |
| Average daytime temperature (°C) | 27.6 | 28.5 | 28.6 | 29.5 | 30.5 | 28.0 | 27.4 | 27.3 | 26.6 | 25.8 | 26.6 | 26.8 |
| Average temperature (°C) | 20.9 | 21.5 | 22.1 | 23.0 | 24.4 | 23.1 | 22.6 | 22.5 | 22.2 | 21.6 | 21.6 | 20.7 |
| Average night temperature (°C) | 16.0 | 16.3 | 17.3 | 18.0 | 19.9 | 19.8 | 19.2 | 19.2 | 19.2 | 18.7 | 17.7 | 16.0 |
| Absolute minimum temperature (°C) | 13.9 | 13.7 | 15.6 | 15.8 | 18.5 | 18.5 | 17.3 | 17.7 | 17.8 | 16.4 | 15.1 | 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 | 12.7 | 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) | 10.5 | 10.7 | 11.1 | 11.3 | 11.5 | 10.5 | 9.7 | 9.3 | 9.9 | 9.5 | 10.1 | 10.2 |
| Precipitation (mm) | 5 | 11 | 20 | 23 | 79 | 234 | 243 | 436 | 340 | 282 | 81 | 15 |
| Sunny days | 20 | 17 | 16 | 17 | 7 | 0 | 0 | 0 | 0 | 1 | 5 | 18 |
| Rainy days | 11 | 11 | 15 | 13 | 24 | 30 | 31 | 31 | 30 | 30 | 25 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Río San Sebastián is at