Average annual temperature is 25.3 °C
Absolute maximum temperature: 34.5 °C
Absolute minimum temperature: 17.3 °C
Number of sunny days: 37 days
Number of rainy days: 328 days
Look at detailed online map of Mentasan
* Weather data for Mentasan 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) | 30.2 | 30.2 | 31.2 | 30.8 | 30.8 | 30.7 | 28.9 | 29.3 | 30.5 | 32.5 | 33.3 | 34.5 |
| Average daytime temperature (°C) | 28.8 | 28.7 | 29.3 | 29.3 | 29.4 | 28.8 | 27.6 | 28.1 | 29.0 | 31.4 | 31.0 | 31.0 |
| Average temperature (°C) | 25.0 | 24.9 | 25.3 | 25.5 | 25.6 | 25.3 | 24.1 | 24.1 | 24.5 | 26.5 | 26.6 | 26.6 |
| Average night temperature (°C) | 22.4 | 22.4 | 22.3 | 22.5 | 22.6 | 22.5 | 21.2 | 20.8 | 20.9 | 23.0 | 23.5 | 23.4 |
| Absolute minimum temperature (°C) | 21.5 | 21.3 | 20.6 | 21.5 | 21.5 | 21.3 | 18.8 | 17.3 | 18.7 | 20.9 | 22.4 | 21.5 |
| 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 | 12.5 | 12.6 |
| 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 | 5.8 | 8.7 | 8.7 | 9.7 | 10.1 | 9.9 | 10.3 | 10.8 | 10.8 | 9.8 | 9.4 |
| Precipitation (mm) | 300 | 361 | 349 | 324 | 241 | 119 | 104 | 13 | 10 | 42 | 242 | 205 |
| Sunny days | 0 | 0 | 0 | 0 | 5 | 1 | 8 | 6 | 13 | 1 | 0 | 3 |
| Rainy days | 31 | 28 | 31 | 30 | 26 | 29 | 23 | 25 | 17 | 30 | 30 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Mentasan is at