Average annual temperature is 6.8 °C
Absolute maximum temperature: 26 °C
Absolute minimum temperature: -14.9 °C
Number of sunny days: 135
Number of rainy days: 191
Number of snow days: 39
Average annual precipitation: 789 mm
Look at detailed online map of Jomala
* Weather data for Jomala Åland is based on climate observations for 2023 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 5.1 | 5.7 | 8.1 | 12.9 | 18.3 | 26 | 21.6 | 25.1 | 21.6 | 14.5 | 9.2 | 6.4 |
| Average daytime temperature (°C) | 2.1 | 1.4 | 1.6 | 7.3 | 12.1 | 19.7 | 19.1 | 18.7 | 17.1 | 8.2 | 3 | -0.3 |
| Average temperature (°C) | 0.6 | -0.2 | -1 | 3.7 | 8.9 | 15.7 | 16.6 | 16.5 | 14.9 | 6.3 | 1.4 | -1.9 |
| Average night temperature (°C) | -0.9 | -2.2 | -4.4 | 0.3 | 5.2 | 10.8 | 13.7 | 14.5 | 12.6 | 4.5 | -0.2 | -4 |
| Absolute minimum temperature (°C) | -6.6 | -6.4 | -14.9 | -5.7 | -1.7 | 5.4 | 10.8 | 12.4 | 6.6 | -1 | -8.5 | -8.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 7.9 | 10.4 | 13.2 | 15.9 | 18.3 | 18.9 | 18.8 | 16.9 | 14.2 | 11.5 | 8.7 | 6.4 |
| Daylight mean duration (h) | 6.8 | 9.1 | 11.8 | 14.6 | 17.2 | 18.8 | 18 | 15.6 | 12.9 | 10.1 | 7.5 | 6 |
| Daylight minimum duration (h) | 6 | 8 | 10.4 | 13.3 | 16 | 18.3 | 17 | 14.3 | 11.6 | 8.8 | 6.5 | 5.8 |
| Sunshine mean duration (h) | 3.3 | 4.3 | 6.5 | 10 | 13.9 | 15.8 | 14.2 | 9.6 | 8.5 | 6.3 | 2.7 | 2.1 |
| Precipitation (mm) | 66 | 38 | 86 | 25 | 28 | 19 | 121 | 110 | 55 | 91 | 101 | 50 |
| Sunny days | 12 | 13 | 10 | 18 | 22 | 20 | 6 | 6 | 12 | 8 | 4 | 4 |
| Rainy days | 17 | 10 | 11 | 12 | 8 | 10 | 25 | 25 | 18 | 23 | 18 | 14 |
| Snow days | 2 | 5 | 10 | 1 | 8 | 13 |
The best time to visit Jomala during the most sunny months:
Months with the longest average daylight duration in Jomala:
The largest precipitation sum in Jomala is at