Average annual temperature is 10.5 °C
Absolute maximum temperature: 23.0 °C
Absolute minimum temperature: -1.6 °C
Number of sunny days: 115 days
Number of rainy days: 244 days
Number of snow days: 6 days
Look at detailed online map of Hörnum (Sylt)
* Weather data for Hörnum (Sylt) 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) | 8.9 | 8.6 | 8.7 | 14.6 | 17.2 | 21.9 | 23.0 | 22.0 | 22.9 | 18.3 | 12.0 | 9.8 |
| Average daytime temperature (°C) | 6.2 | 5.7 | 5.9 | 9.2 | 12.2 | 17.3 | 18.0 | 18.2 | 19.0 | 13.7 | 8.6 | 5.6 |
| Average temperature (°C) | 5.2 | 4.8 | 4.9 | 7.5 | 10.8 | 15.8 | 16.9 | 17.3 | 17.8 | 12.6 | 7.3 | 4.7 |
| Average night temperature (°C) | 4.1 | 3.8 | 3.9 | 6.0 | 9.4 | 14.3 | 15.8 | 16.4 | 16.6 | 11.3 | 5.8 | 3.6 |
| Absolute minimum temperature (°C) | -0.1 | 1.6 | 0.2 | 2.4 | 5.5 | 10.9 | 14.3 | 13.7 | 13.4 | 6.7 | -1.5 | -1.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 8.0 | 10.0 | 12.0 | 15.0 | 16.0 | 17.0 | 17.0 | 15.0 | 13.0 | 11.0 | 9.0 | 7.0 |
| Daylight mean duration (h) | 7.9 | 9.7 | 11.9 | 14.1 | 16.1 | 17.2 | 16.7 | 14.9 | 12.7 | 10.5 | 8.5 | 7.4 |
| Daylight minimum duration (h) | 7.0 | 8.0 | 10.0 | 13.0 | 15.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 7.0 | 7.0 |
| Sunshine mean duration (h) | 3.6 | 5.3 | 5.9 | 10.5 | 10.7 | 13.7 | 12.1 | 10.9 | 9.3 | 4.1 | 3.5 | 2.0 |
| Precipitation (mm) | 124 | 44 | 83 | 53 | 42 | 15 | 134 | 103 | 75 | 188 | 133 | 110 |
| Sunny days | 5 | 13 | 5 | 15 | 18 | 22 | 4 | 7 | 17 | 3 | 3 | 3 |
| Rainy days | 26 | 14 | 25 | 15 | 13 | 8 | 27 | 24 | 13 | 28 | 26 | 25 |
| Snow days | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The best time to visit Hörnum (Sylt) during the most sunny months:
Months with the longest average daylight duration in Hörnum (Sylt):
The largest precipitation sum in Hörnum (Sylt) is at