Average annual temperature is 18.9 °C
Absolute maximum temperature: 32.7 °C
Absolute minimum temperature: 6.5 °C
Number of sunny days: 71 days
Number of rainy days: 294 days
Look at detailed online map of San Julián
* Weather data for San Julián Guatemala is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 26.4 | 29.0 | 30.8 | 32.7 | 31.7 | 32.3 | 26.9 | 28.4 | 26.6 | 27.7 | 25.7 | 26.0 |
| Average daytime temperature (°C) | 23.0 | 23.8 | 26.5 | 28.3 | 28.2 | 28.3 | 25.4 | 25.7 | 25.1 | 23.9 | 21.8 | 21.2 |
| Average temperature (°C) | 16.6 | 17.2 | 19.1 | 20.1 | 20.8 | 21.3 | 19.7 | 19.7 | 19.1 | 18.8 | 17.7 | 16.4 |
| Average night temperature (°C) | 12.1 | 12.9 | 14.0 | 14.3 | 15.6 | 16.4 | 16.1 | 15.7 | 15.0 | 15.5 | 15.0 | 13.4 |
| Absolute minimum temperature (°C) | 6.5 | 10.2 | 11.7 | 11.0 | 13.5 | 14.5 | 14.3 | 13.9 | 12.7 | 13.0 | 11.7 | 6.9 |
| 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 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.6 | 12.1 | 12.5 | 12.8 | 13.0 | 12.9 | 12.6 | 12.2 | 11.8 | 11.4 | 11.2 |
| 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) | 9.5 | 9.7 | 10.6 | 11.4 | 11.4 | 11.1 | 10.5 | 10.1 | 10.4 | 9.2 | 6.5 | 8.1 |
| Precipitation (mm) | 28 | 44 | 34 | 24 | 98 | 152 | 245 | 160 | 215 | 202 | 243 | 42 |
| Sunny days | 15 | 9 | 13 | 10 | 6 | 3 | 0 | 0 | 0 | 0 | 4 | 11 |
| Rainy days | 16 | 19 | 18 | 20 | 25 | 27 | 31 | 31 | 30 | 31 | 26 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Julián is at