Average annual temperature is 26.1 °C
Absolute maximum temperature: 31.4 °C
Absolute minimum temperature: 22.1 °C
Number of sunny days: 26 days
Number of rainy days: 339 days
Look at detailed online map of Siantar Ca
* Weather data for Siantar Ca 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) | 30.0 | 30.1 | 30.5 | 30.6 | 31.1 | 31.4 | 30.4 | 30.5 | 29.7 | 29.3 | 29.3 | 29.4 |
| Average daytime temperature (°C) | 28.3 | 29.0 | 29.0 | 29.2 | 29.6 | 29.7 | 28.9 | 28.7 | 28.1 | 28.1 | 28.4 | 28.5 |
| Average temperature (°C) | 25.7 | 26.0 | 26.0 | 26.2 | 26.8 | 26.9 | 26.2 | 26.1 | 25.7 | 25.6 | 25.9 | 26.1 |
| Average night temperature (°C) | 23.1 | 23.4 | 23.4 | 23.8 | 24.4 | 24.3 | 23.8 | 23.8 | 23.8 | 23.5 | 23.8 | 24.1 |
| Absolute minimum temperature (°C) | 22.3 | 22.1 | 22.4 | 22.9 | 23.2 | 23.2 | 23.1 | 22.7 | 22.7 | 22.8 | 23.2 | 23.6 |
| 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) | 12.0 | 12.1 | 12.1 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.0 | 12.0 |
| 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) | 8.6 | 9.5 | 8.9 | 8.0 | 9.0 | 9.1 | 8.6 | 8.1 | 7.6 | 7.7 | 7.2 | 7.2 |
| Precipitation (mm) | 198 | 191 | 327 | 265 | 279 | 192 | 246 | 288 | 328 | 310 | 324 | 497 |
| Sunny days | 3 | 4 | 0 | 0 | 1 | 5 | 6 | 2 | 0 | 2 | 1 | 2 |
| Rainy days | 28 | 24 | 31 | 30 | 30 | 25 | 25 | 29 | 30 | 29 | 29 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siantar Ca is at