Average annual temperature is 10.9 °C
Absolute maximum temperature: 32.5 °C
Absolute minimum temperature: -5.0 °C
Number of sunny days: 108 days
Number of rainy days: 251 days
Number of snow days: 6 days
Look at detailed online map of Heistersiek
* Weather data for Heistersiek Germany is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 16.3 | 13.4 | 16.0 | 21.4 | 24.7 | 28.3 | 32.5 | 29.3 | 29.3 | 23.6 | 14.2 | 10.6 |
| Average daytime temperature (°C) | 6.2 | 7.1 | 8.8 | 11.9 | 17.6 | 23.9 | 22.1 | 21.9 | 22.6 | 15.7 | 8.5 | 6.7 |
| Average temperature (°C) | 4.3 | 4.0 | 5.5 | 7.7 | 12.7 | 18.8 | 18.1 | 17.6 | 17.6 | 12.5 | 6.2 | 4.9 |
| Average night temperature (°C) | 2.2 | 1.1 | 2.5 | 3.1 | 7.5 | 13.1 | 13.9 | 13.6 | 12.7 | 9.7 | 3.7 | 3.0 |
| Absolute minimum temperature (°C) | -4.4 | -5.0 | -4.9 | -3.8 | 0.9 | 7.8 | 10.6 | 9.7 | 7.7 | 3.5 | -2.9 | -4.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.3 | 9.9 | 11.9 | 13.9 | 15.7 | 16.7 | 16.2 | 14.6 | 12.7 | 10.6 | 8.8 | 7.8 |
| Daylight minimum duration (h) | 7.0 | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 7.0 |
| Sunshine mean duration (h) | 2.2 | 4.1 | 4.7 | 8.6 | 11.4 | 12.6 | 11.3 | 10.2 | 10.1 | 5.1 | 2.9 | 1.0 |
| Precipitation (mm) | 107 | 62 | 114 | 60 | 52 | 46 | 113 | 116 | 38 | 140 | 141 | 181 |
| Sunny days | 8 | 13 | 4 | 10 | 13 | 18 | 3 | 6 | 18 | 6 | 4 | 5 |
| Rainy days | 22 | 15 | 25 | 20 | 18 | 12 | 28 | 25 | 12 | 25 | 25 | 24 |
| Snow days | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The best time to visit Heistersiek during the most sunny months:
Months with the longest average daylight duration in Heistersiek:
The largest precipitation sum in Heistersiek is at