Average annual temperature is 26.3 °C
Absolute maximum temperature: 38.7 °C
Absolute minimum temperature: 15.6 °C
Number of sunny days: 134 days
Number of rainy days: 231 days
Look at detailed online map of Ostúa
* Weather data for Ostúa 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) | 34.7 | 35.6 | 37.0 | 38.7 | 37.7 | 35.7 | 33.9 | 34.3 | 34.2 | 32.9 | 32.4 | 34.0 |
| Average daytime temperature (°C) | 32.2 | 32.8 | 34.7 | 35.8 | 34.8 | 32.5 | 32.3 | 31.8 | 32.0 | 30.8 | 30.6 | 30.9 |
| Average temperature (°C) | 25.3 | 25.8 | 27.0 | 27.8 | 27.9 | 26.5 | 26.7 | 26.3 | 26.1 | 25.4 | 25.2 | 25.1 |
| Average night temperature (°C) | 20.1 | 20.6 | 21.3 | 22.0 | 22.7 | 22.6 | 22.6 | 22.4 | 22.2 | 22.0 | 21.1 | 20.6 |
| Absolute minimum temperature (°C) | 15.6 | 18.4 | 19.7 | 19.4 | 21.5 | 21.6 | 20.9 | 21.3 | 20.9 | 20.4 | 17.5 | 16.7 |
| 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 | 12.5 | 12.8 | 13.0 | 12.9 | 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) | 10.4 | 10.8 | 11.1 | 11.2 | 10.9 | 10.1 | 10.6 | 10.0 | 9.9 | 9.5 | 9.5 | 10.3 |
| Precipitation (mm) | 2 | 1 | 30 | 60 | 134 | 285 | 200 | 262 | 441 | 405 | 96 | 1 |
| Sunny days | 25 | 26 | 17 | 13 | 9 | 1 | 4 | 1 | 0 | 3 | 11 | 24 |
| Rainy days | 6 | 2 | 14 | 17 | 22 | 29 | 27 | 30 | 30 | 28 | 19 | 7 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ostúa is at