Average annual temperature is 7.4 °C
Absolute maximum temperature: 21.0 °C
Absolute minimum temperature: -6.6 °C
Number of sunny days: 142 days
Number of rainy days: 183 days
Number of snow days: 40 days
Look at detailed online map of Utö
* Weather data for Utö Finland is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 5.1 | 5.9 | 5.1 | 7.0 | 13.0 | 20.1 | 19.3 | 21.0 | 18.6 | 15.3 | 9.5 | 6.6 |
| Average daytime temperature (°C) | 2.9 | 2.0 | 1.8 | 4.0 | 8.4 | 14.7 | 16.9 | 17.6 | 16.9 | 9.4 | 4.8 | 1.5 |
| Average temperature (°C) | 1.9 | 1.0 | 0.5 | 3.0 | 7.4 | 13.7 | 16.2 | 16.9 | 16.0 | 8.1 | 3.6 | 0.3 |
| Average night temperature (°C) | 0.8 | -0.1 | -0.6 | 2.1 | 6.5 | 12.9 | 15.6 | 16.2 | 15.2 | 6.8 | 2.4 | -1.0 |
| Absolute minimum temperature (°C) | -4.6 | -4.2 | -5.0 | -1.6 | 1.6 | 6.8 | 13.8 | 14.4 | 13.3 | 2.0 | -6.3 | -6.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 7.0 | 10.0 | 13.0 | 15.0 | 18.0 | 18.0 | 18.0 | 16.0 | 14.0 | 11.0 | 8.0 | 6.0 |
| Daylight mean duration (h) | 6.9 | 9.2 | 11.8 | 14.6 | 17.1 | 18.6 | 17.9 | 15.5 | 12.9 | 10.2 | 7.6 | 6.1 |
| Daylight minimum duration (h) | 6.0 | 8.0 | 10.0 | 13.0 | 15.0 | 18.0 | 16.0 | 14.0 | 11.0 | 8.0 | 6.0 | 5.0 |
| Sunshine mean duration (h) | 1.6 | 3.4 | 5.9 | 10.5 | 13.9 | 15.7 | 14.4 | 8.9 | 8.4 | 4.8 | 1.4 | 0.4 |
| Precipitation (mm) | 74 | 35 | 73 | 19 | 25 | 6 | 49 | 130 | 30 | 116 | 99 | 57 |
| Sunny days | 10 | 11 | 6 | 21 | 24 | 24 | 16 | 8 | 14 | 4 | 1 | 3 |
| Rainy days | 18 | 11 | 12 | 9 | 7 | 6 | 15 | 23 | 16 | 27 | 23 | 16 |
| Snow days | 3 | 6 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 12 |
The best time to visit Utö during the most sunny months:
Months with the longest average daylight duration in Utö:
The largest precipitation sum in Utö is at