Average annual temperature is 27.6 °C
Absolute maximum temperature: 39.0 °C
Absolute minimum temperature: 19.0 °C
Number of sunny days: 141 days
Number of rainy days: 224 days
Look at detailed online map of Bolu
* Weather data for Bolu 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) | 32.7 | 31.1 | 32.4 | 32.6 | 33.4 | 35.1 | 34.9 | 35.6 | 37.3 | 39.0 | 38.0 | 38.8 |
| Average daytime temperature (°C) | 30.2 | 29.4 | 30.8 | 31.1 | 31.8 | 33.6 | 33.1 | 34.3 | 35.6 | 37.4 | 35.9 | 34.4 |
| Average temperature (°C) | 25.6 | 25.3 | 25.8 | 26.4 | 27.3 | 28.4 | 27.5 | 27.8 | 28.6 | 30.5 | 29.5 | 28.3 |
| Average night temperature (°C) | 22.5 | 22.6 | 22.6 | 23.0 | 23.3 | 23.9 | 22.8 | 22.6 | 23.2 | 25.0 | 24.7 | 24.1 |
| Absolute minimum temperature (°C) | 21.4 | 21.5 | 20.9 | 21.6 | 21.7 | 22.3 | 19.7 | 19.0 | 20.9 | 23.1 | 22.7 | 22.2 |
| 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 | 11.7 | 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) | 8.1 | 6.4 | 8.6 | 9.1 | 10.4 | 10.9 | 10.7 | 10.9 | 11.0 | 11.2 | 10.8 | 9.6 |
| Precipitation (mm) | 113 | 337 | 305 | 158 | 88 | 30 | 12 | 0 | 2 | 16 | 90 | 171 |
| Sunny days | 2 | 0 | 1 | 2 | 19 | 12 | 22 | 30 | 26 | 11 | 6 | 10 |
| Rainy days | 29 | 28 | 30 | 28 | 12 | 18 | 9 | 1 | 4 | 20 | 24 | 21 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bolu is at