Average annual temperature is 14.7 °C
Absolute maximum temperature: 39.2 °C
Absolute minimum temperature: -11.2 °C
Number of sunny days: 202 days
Number of rainy days: 159 days
Number of snow days: 4 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) | 14.9 | 20.2 | 25.0 | 27.2 | 32.0 | 39.2 | 37.2 | 38.1 | 34.9 | 31.4 | 25.2 | 16.4 |
| Average daytime temperature (°C) | 7.8 | 11.1 | 12.6 | 20.9 | 26.4 | 30.6 | 32.6 | 32.1 | 29.1 | 20.9 | 14.8 | 10.2 |
| Average temperature (°C) | 2.5 | 4.2 | 6.7 | 13.7 | 19.7 | 24.2 | 26.2 | 26.2 | 22.5 | 15.5 | 8.7 | 5.8 |
| Average night temperature (°C) | -1.4 | -0.7 | 2.1 | 7.7 | 14.1 | 18.4 | 21.3 | 21.5 | 17.0 | 11.0 | 4.1 | 2.7 |
| Absolute minimum temperature (°C) | -11.2 | -10.6 | -7.5 | 0.2 | 5.9 | 12.2 | 15.8 | 15.3 | 11.7 | -2.4 | -5.3 | -3.5 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.1 | 7.6 | 7.3 | 10.6 | 10.3 | 12.7 | 11.1 | 11.3 | 10.5 | 7.8 | 7.5 | 5.4 |
| Precipitation (mm) | 103 | 59 | 97 | 39 | 71 | 63 | 65 | 53 | 38 | 71 | 19 | 109 |
| Sunny days | 17 | 15 | 15 | 20 | 15 | 14 | 11 | 19 | 19 | 19 | 23 | 15 |
| Rainy days | 11 | 13 | 15 | 10 | 16 | 16 | 20 | 12 | 11 | 12 | 7 | 16 |
| Snow days | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Altona during the most sunny months:
The largest precipitation sum in Altona is at