Average annual temperature is 19.7 °C
Absolute maximum temperature: 34.9 °C
Absolute minimum temperature: 6.5 °C
Number of sunny days: 195 days
Number of rainy days: 170 days
Look at detailed online map of San Sebastián del Sur
* Weather data for San Sebastián del Sur 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) | 27.3 | 29.8 | 30.5 | 33.4 | 34.2 | 34.9 | 28.9 | 28.9 | 31.5 | 27.5 | 28.3 | 24.6 |
| Average daytime temperature (°C) | 24.4 | 26.3 | 28.4 | 30.4 | 31.2 | 31.4 | 26.5 | 26.0 | 27.4 | 24.7 | 25.5 | 21.9 |
| Average temperature (°C) | 16.7 | 18.1 | 19.8 | 21.4 | 22.5 | 23.0 | 20.5 | 20.2 | 20.6 | 19.1 | 19.0 | 16.0 |
| Average night temperature (°C) | 10.0 | 11.3 | 13.0 | 14.1 | 15.7 | 16.7 | 16.1 | 16.1 | 15.7 | 14.9 | 14.0 | 11.4 |
| Absolute minimum temperature (°C) | 6.5 | 8.3 | 9.8 | 11.5 | 12.4 | 15.2 | 14.6 | 14.6 | 14.2 | 11.8 | 9.8 | 8.1 |
| 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 | 10.6 | 11.3 | 11.8 | 11.7 | 11.9 | 10.9 | 10.4 | 10.6 | 8.8 | 9.9 | 8.4 |
| Precipitation (mm) | 0 | 0 | 2 | 0 | 8 | 52 | 175 | 151 | 91 | 163 | 33 | 38 |
| Sunny days | 29 | 27 | 25 | 26 | 22 | 17 | 1 | 3 | 5 | 6 | 17 | 17 |
| Rainy days | 2 | 1 | 6 | 4 | 9 | 13 | 30 | 28 | 25 | 25 | 13 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Sebastián del Sur is at