Average annual temperature is 17.1 °C
Absolute maximum temperature: 40.5 °C
Absolute minimum temperature: -12.8 °C
Number of sunny days: 222 days
Number of rainy days: 141 days
Number of snow days: 2 days
Look at detailed online map of Altona
* Weather data for Altona United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 19.9 | 23.0 | 26.9 | 33.2 | 33.5 | 38.9 | 39.0 | 40.5 | 39.3 | 31.7 | 26.5 | 19.6 |
| Average daytime temperature (°C) | 12.2 | 13.3 | 17.3 | 23.5 | 26.8 | 31.4 | 34.7 | 35.7 | 31.9 | 23.6 | 16.8 | 12.9 |
| Average temperature (°C) | 5.9 | 6.3 | 10.4 | 15.9 | 20.8 | 25.1 | 28.7 | 29.6 | 25.6 | 17.8 | 10.9 | 7.7 |
| Average night temperature (°C) | 1.2 | 1.4 | 4.8 | 10.0 | 15.7 | 19.8 | 23.6 | 23.9 | 20.3 | 13.1 | 6.5 | 3.8 |
| Absolute minimum temperature (°C) | -12.8 | -7.3 | -6.3 | 3.1 | 5.6 | 15.8 | 18.6 | 17.2 | 14.7 | -0.5 | -3.6 | -2.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.2 | 7.4 | 8.6 | 10.1 | 10.4 | 11.4 | 12.0 | 12.4 | 10.4 | 8.9 | 7.4 | 7.2 |
| Precipitation (mm) | 27 | 33 | 14 | 67 | 69 | 121 | 98 | 24 | 67 | 55 | 50 | 48 |
| Sunny days | 22 | 19 | 23 | 16 | 11 | 8 | 16 | 21 | 20 | 20 | 24 | 22 |
| Rainy days | 8 | 9 | 8 | 14 | 20 | 22 | 15 | 10 | 10 | 11 | 6 | 8 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Altona during the most sunny months:
The largest precipitation sum in Altona is at