Average annual temperature is 26.8 °C
Absolute maximum temperature: 39.1 °C
Absolute minimum temperature: 16.5 °C
Number of sunny days: 139 days
Number of rainy days: 226 days
Look at detailed online map of Río Grande de Alvarado
* Weather data for Río Grande de Alvarado 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) | 35.7 | 36.7 | 38.3 | 37.7 | 39.1 | 32.8 | 35.2 | 34.8 | 35.6 | 31.8 | 34.3 | 35.2 |
| Average daytime temperature (°C) | 33.5 | 34.3 | 35.2 | 35.8 | 35.0 | 31.2 | 32.5 | 32.5 | 32.2 | 30.4 | 31.1 | 32.9 |
| Average temperature (°C) | 26.5 | 26.9 | 27.5 | 28.2 | 28.4 | 26.4 | 27.0 | 26.9 | 26.3 | 25.3 | 25.6 | 26.6 |
| Average night temperature (°C) | 20.7 | 20.9 | 21.9 | 22.3 | 23.0 | 22.7 | 22.6 | 22.7 | 22.2 | 21.8 | 21.5 | 21.5 |
| Absolute minimum temperature (°C) | 17.7 | 19.4 | 19.9 | 19.9 | 21.3 | 20.9 | 21.2 | 21.1 | 21.0 | 20.8 | 17.2 | 16.5 |
| 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 | 12.9 | 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 | 11.2 | 11.4 | 10.9 | 10.2 | 10.7 | 10.4 | 10.4 | 9.6 | 9.5 | 10.3 |
| Precipitation (mm) | 1 | 0 | 51 | 60 | 114 | 316 | 155 | 186 | 299 | 315 | 199 | 5 |
| Sunny days | 26 | 28 | 18 | 14 | 12 | 0 | 4 | 2 | 0 | 1 | 10 | 24 |
| Rainy days | 5 | 0 | 13 | 16 | 19 | 30 | 27 | 29 | 30 | 30 | 20 | 7 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Río Grande de Alvarado is at