Average annual temperature is 23.6 °C
Absolute maximum temperature: 32.1 °C
Absolute minimum temperature: 17.5 °C
Number of sunny days: 6 days
Number of rainy days: 359 days
Look at detailed online map of Sianjur
* Weather data for Sianjur 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) | 27.8 | 28.4 | 29.7 | 29.6 | 32.1 | 31.5 | 31.6 | 30.2 | 30.0 | 29.6 | 29.0 | 28.8 |
| Average daytime temperature (°C) | 26.8 | 27.2 | 27.7 | 28.2 | 28.9 | 28.5 | 28.4 | 27.9 | 28.0 | 27.9 | 27.4 | 27.4 |
| Average temperature (°C) | 22.7 | 22.9 | 23.2 | 23.8 | 24.4 | 24.2 | 24.1 | 23.6 | 23.9 | 23.6 | 23.5 | 23.6 |
| Average night temperature (°C) | 19.7 | 19.5 | 19.7 | 20.5 | 21.0 | 20.8 | 20.7 | 20.6 | 20.8 | 20.6 | 20.7 | 20.8 |
| Absolute minimum temperature (°C) | 17.5 | 17.5 | 18.5 | 17.7 | 19.8 | 18.5 | 19.1 | 18.9 | 20.0 | 19.2 | 19.4 | 19.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 |
| Daylight mean duration (h) | 12.0 | 12.0 | 12.1 | 12.2 | 12.3 | 12.3 | 12.3 | 12.2 | 12.1 | 12.1 | 12.0 | 12.0 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 8.3 | 9.0 | 8.4 | 8.2 | 8.4 | 8.9 | 8.5 | 7.7 | 7.6 | 7.2 | 6.3 | 8.0 |
| Precipitation (mm) | 220 | 243 | 271 | 216 | 243 | 229 | 219 | 477 | 330 | 325 | 351 | 357 |
| Sunny days | 0 | 0 | 0 | 0 | 1 | 3 | 2 | 0 | 0 | 0 | 0 | 0 |
| Rainy days | 31 | 28 | 31 | 30 | 30 | 27 | 29 | 31 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sianjur is at