Average annual temperature is 25.6 °C
Absolute maximum temperature: 35.5 °C
Absolute minimum temperature: 17.3 °C
Number of sunny days: 111 days
Number of rainy days: 254 days
Look at detailed online map of Slajan
* Weather data for Slajan Indonesia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 29.7 | 29.0 | 29.6 | 29.6 | 31.5 | 31.8 | 31.8 | 32.6 | 35.0 | 35.5 | 34.7 | 33.8 |
| Average daytime temperature (°C) | 27.7 | 26.9 | 27.8 | 28.7 | 29.4 | 29.9 | 30.3 | 31.5 | 33.1 | 33.9 | 32.1 | 31.0 |
| Average temperature (°C) | 24.2 | 23.8 | 24.5 | 25.1 | 25.3 | 25.4 | 25.3 | 25.7 | 26.6 | 27.7 | 26.9 | 26.4 |
| Average night temperature (°C) | 21.9 | 21.9 | 22.0 | 22.5 | 21.9 | 21.8 | 20.8 | 20.7 | 20.5 | 22.8 | 23.1 | 22.8 |
| Absolute minimum temperature (°C) | 20.9 | 21.2 | 20.4 | 21.3 | 20.0 | 20.6 | 17.3 | 18.4 | 17.5 | 21.0 | 21.9 | 20.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.5 | 12.3 | 12.1 | 11.9 | 11.8 | 11.7 | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 8.5 | 5.9 | 9.3 | 9.6 | 10.3 | 10.6 | 10.6 | 10.9 | 11.1 | 11.0 | 10.4 | 10.1 |
| Precipitation (mm) | 319 | 451 | 404 | 295 | 174 | 103 | 54 | 1 | 5 | 42 | 247 | 277 |
| Sunny days | 0 | 1 | 0 | 0 | 13 | 7 | 24 | 26 | 23 | 8 | 1 | 8 |
| Rainy days | 31 | 27 | 31 | 30 | 18 | 23 | 7 | 5 | 7 | 23 | 29 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Slajan is at