Average annual temperature is 27.4 °C
Absolute maximum temperature: 40.1 °C
Absolute minimum temperature: 18.6 °C
Number of sunny days: 102 days
Number of rainy days: 263 days
Look at detailed online map of San José Llano Grande
* Weather data for San José Llano Grande 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) | 36.2 | 38.2 | 38.4 | 39.2 | 40.1 | 34.8 | 37.3 | 36.9 | 35.8 | 34.0 | 34.6 | 36.3 |
| Average daytime temperature (°C) | 33.9 | 35.9 | 34.6 | 35.5 | 34.9 | 32.1 | 33.8 | 32.7 | 33.0 | 30.6 | 32.1 | 34.2 |
| Average temperature (°C) | 26.7 | 28.0 | 27.5 | 28.3 | 28.6 | 27.0 | 27.9 | 27.3 | 27.4 | 25.9 | 26.3 | 27.5 |
| Average night temperature (°C) | 22.1 | 22.9 | 22.8 | 23.7 | 24.2 | 23.7 | 23.9 | 23.7 | 23.4 | 23.0 | 22.5 | 22.9 |
| Absolute minimum temperature (°C) | 18.6 | 20.9 | 20.9 | 21.7 | 22.6 | 22.8 | 22.6 | 22.6 | 22.6 | 21.8 | 19.3 | 20.0 |
| 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 | 10.9 | 11.3 | 11.5 | 11.2 | 9.7 | 10.7 | 10.2 | 10.9 | 8.7 | 9.9 | 10.4 |
| Precipitation (mm) | 6 | 0 | 42 | 47 | 124 | 260 | 210 | 256 | 165 | 370 | 162 | 12 |
| Sunny days | 22 | 27 | 11 | 10 | 4 | 1 | 3 | 1 | 2 | 0 | 6 | 15 |
| Rainy days | 9 | 1 | 20 | 20 | 27 | 29 | 28 | 30 | 28 | 31 | 24 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San José Llano Grande is at