Average annual temperature is 22.4 °C
Absolute maximum temperature: 29.2 °C
Absolute minimum temperature: 16.0 °C
Number of sunny days: 10 days
Number of rainy days: 355 days
Look at detailed online map of Lumban Sirait
* Weather data for Lumban Sirait 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) | 27.4 | 27.7 | 28.4 | 28.7 | 28.9 | 29.2 | 29.2 | 28.8 | 29.2 | 29.1 | 27.8 | 29.2 |
| Average daytime temperature (°C) | 25.3 | 26.1 | 26.2 | 26.7 | 27.3 | 27.4 | 27.1 | 26.9 | 27.0 | 26.6 | 26.3 | 26.1 |
| Average temperature (°C) | 21.4 | 21.7 | 22.0 | 22.5 | 23.0 | 23.1 | 22.8 | 22.5 | 22.6 | 22.4 | 22.3 | 22.3 |
| Average night temperature (°C) | 18.5 | 18.4 | 19.2 | 19.4 | 19.6 | 19.7 | 19.5 | 19.5 | 19.7 | 19.4 | 19.7 | 19.7 |
| Absolute minimum temperature (°C) | 17.2 | 16.0 | 17.9 | 17.4 | 17.3 | 18.5 | 18.1 | 18.3 | 18.4 | 17.9 | 18.7 | 18.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 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 | 12.2 | 12.3 | 12.3 | 12.2 | 12.1 | 12.1 | 12.0 | 12.0 |
| Daylight minimum duration (h) | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 8.4 | 9.3 | 8.8 | 8.4 | 8.6 | 9.1 | 8.7 | 7.8 | 7.7 | 7.6 | 6.5 | 8.3 |
| Precipitation (mm) | 203 | 196 | 198 | 200 | 141 | 140 | 114 | 249 | 227 | 266 | 355 | 390 |
| Sunny days | 1 | 0 | 0 | 0 | 0 | 3 | 6 | 0 | 0 | 0 | 0 | 0 |
| Rainy days | 30 | 28 | 31 | 30 | 31 | 27 | 25 | 31 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Lumban Sirait is at