Average annual temperature is 15.9 °C
Absolute maximum temperature: 27.5 °C
Absolute minimum temperature: 3.6 °C
Number of sunny days: 39 days
Number of rainy days: 326 days
Look at detailed online map of San Bartolomé
* Weather data for San Bartolomé 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) | 22.6 | 23.6 | 25.8 | 27.5 | 25.6 | 25.2 | 22.7 | 23.4 | 22.8 | 24.0 | 23.0 | 22.7 |
| Average daytime temperature (°C) | 18.4 | 18.6 | 21.1 | 22.7 | 22.8 | 23.2 | 21.2 | 21.8 | 21.3 | 20.2 | 18.1 | 17.2 |
| Average temperature (°C) | 13.6 | 13.7 | 15.7 | 16.6 | 17.5 | 18.3 | 16.9 | 17.1 | 16.6 | 16.3 | 15.1 | 13.5 |
| Average night temperature (°C) | 9.7 | 10.2 | 11.6 | 11.7 | 13.3 | 14.5 | 13.9 | 13.7 | 13.1 | 13.6 | 12.9 | 10.9 |
| Absolute minimum temperature (°C) | 5.1 | 7.1 | 7.9 | 7.3 | 9.8 | 12.3 | 10.9 | 11.3 | 11.4 | 10.6 | 9.2 | 3.6 |
| 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 | 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) | 9.0 | 8.9 | 10.2 | 11.4 | 11.2 | 10.9 | 10.0 | 9.7 | 9.9 | 8.0 | 5.3 | 7.1 |
| Precipitation (mm) | 74 | 112 | 107 | 61 | 124 | 127 | 219 | 177 | 193 | 290 | 532 | 166 |
| Sunny days | 9 | 5 | 7 | 6 | 2 | 1 | 0 | 1 | 0 | 0 | 3 | 5 |
| Rainy days | 22 | 23 | 24 | 24 | 29 | 29 | 31 | 30 | 30 | 31 | 27 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Bartolomé is at