Average annual temperature is 24.3 °C
Absolute maximum temperature: 31.5 °C
Absolute minimum temperature: 16.2 °C
Number of sunny days: 35 days
Number of rainy days: 330 days
Look at detailed online map of Sialur
* Weather data for Sialur 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) | 28.8 | 29.4 | 29.9 | 29.9 | 30.0 | 29.9 | 28.1 | 29.5 | 31.3 | 31.5 | 31.5 | 31.3 |
| Average daytime temperature (°C) | 27.5 | 27.6 | 28.3 | 28.1 | 28.7 | 28.0 | 26.6 | 28.1 | 29.2 | 30.4 | 29.1 | 28.9 |
| Average temperature (°C) | 24.1 | 24.3 | 24.4 | 24.4 | 24.6 | 24.3 | 23.0 | 23.1 | 23.6 | 25.1 | 25.1 | 25.0 |
| Average night temperature (°C) | 21.7 | 22.2 | 21.5 | 21.8 | 21.0 | 21.3 | 19.8 | 19.3 | 19.4 | 21.6 | 22.3 | 22.2 |
| Absolute minimum temperature (°C) | 20.5 | 20.9 | 20.2 | 20.7 | 19.2 | 19.5 | 17.0 | 16.2 | 16.3 | 18.5 | 21.0 | 20.2 |
| 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) | 7.7 | 5.5 | 8.2 | 8.6 | 9.6 | 9.7 | 9.5 | 9.8 | 10.5 | 10.8 | 8.9 | 8.8 |
| Precipitation (mm) | 232 | 315 | 422 | 300 | 187 | 242 | 170 | 33 | 61 | 117 | 428 | 276 |
| Sunny days | 0 | 0 | 0 | 0 | 6 | 2 | 8 | 7 | 7 | 2 | 0 | 3 |
| Rainy days | 31 | 28 | 31 | 30 | 25 | 28 | 23 | 24 | 23 | 29 | 30 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sialur is at