Average annual temperature is 25.2 °C
Absolute maximum temperature: 32.7 °C
Absolute minimum temperature: 20.1 °C
Number of sunny days: 16 days
Number of rainy days: 349 days
Look at detailed online map of Sialang
* Weather data for Sialang 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) | 31.3 | 31.3 | 31.9 | 31.8 | 32.5 | 32.7 | 31.0 | 31.4 | 32.2 | 31.3 | 30.6 | 31.1 |
| Average daytime temperature (°C) | 29.2 | 29.6 | 30.2 | 29.9 | 29.8 | 30.3 | 28.8 | 29.2 | 29.5 | 29.6 | 29.6 | 29.6 |
| Average temperature (°C) | 24.6 | 25.0 | 25.1 | 25.3 | 25.8 | 25.8 | 25.0 | 25.0 | 25.1 | 25.1 | 25.1 | 25.2 |
| Average night temperature (°C) | 21.6 | 21.7 | 21.9 | 22.7 | 23.2 | 22.6 | 22.2 | 22.3 | 22.5 | 22.6 | 22.6 | 22.8 |
| Absolute minimum temperature (°C) | 20.1 | 20.5 | 20.6 | 21.2 | 21.9 | 20.6 | 21.4 | 20.5 | 20.1 | 21.5 | 21.5 | 21.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.1 | 12.1 | 12.1 | 12.1 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 8.7 | 9.2 | 8.5 | 8.1 | 8.6 | 9.2 | 8.5 | 7.8 | 9.0 | 7.9 | 7.7 | 7.8 |
| Precipitation (mm) | 193 | 177 | 260 | 310 | 255 | 165 | 185 | 376 | 255 | 293 | 311 | 537 |
| Sunny days | 1 | 3 | 0 | 0 | 1 | 3 | 5 | 1 | 1 | 1 | 0 | 0 |
| Rainy days | 30 | 25 | 31 | 30 | 30 | 27 | 26 | 30 | 29 | 30 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sialang is at