Average annual temperature is 23.7 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: 15.6 °C
Number of sunny days: 70 days
Number of rainy days: 295 days
Look at detailed online map of Santa María Ostuma
* Weather data for Santa María Ostuma El Salvador is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 32.7 | 34.8 | 34.1 | 34.4 | 35.0 | 31.1 | 32.3 | 32.8 | 31.9 | 28.6 | 30.6 | 31.4 |
| Average daytime temperature (°C) | 29.6 | 31.9 | 30.3 | 30.8 | 30.2 | 27.9 | 29.8 | 28.3 | 28.8 | 26.7 | 27.9 | 29.5 |
| Average temperature (°C) | 22.9 | 24.1 | 23.7 | 24.5 | 24.7 | 23.5 | 24.3 | 23.8 | 23.8 | 22.5 | 23.0 | 23.5 |
| Average night temperature (°C) | 18.8 | 19.2 | 19.5 | 20.4 | 21.0 | 20.7 | 21.1 | 21.0 | 20.8 | 20.2 | 20.1 | 19.8 |
| Absolute minimum temperature (°C) | 15.7 | 17.8 | 18.2 | 19.5 | 19.8 | 20.0 | 19.9 | 19.5 | 19.6 | 18.9 | 18.0 | 15.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.4 | 11.7 | 12.1 | 12.4 | 12.8 | 12.9 | 12.8 | 12.6 | 12.2 | 11.8 | 11.5 | 11.3 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.5 | 10.8 | 11.1 | 11.5 | 10.9 | 9.6 | 10.6 | 10.0 | 10.6 | 8.0 | 9.6 | 10.3 |
| Precipitation (mm) | 18 | 5 | 50 | 78 | 142 | 241 | 242 | 307 | 189 | 381 | 197 | 15 |
| Sunny days | 13 | 21 | 8 | 7 | 3 | 0 | 0 | 1 | 0 | 0 | 4 | 13 |
| Rainy days | 18 | 7 | 23 | 23 | 28 | 30 | 31 | 30 | 30 | 31 | 26 | 18 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Santa María Ostuma is at