Average temperature in December is -1 °C
Average daytime temperature is 0.5 °C
Average night temperature is -2.6 °C
Absolute maximum temperature: 6.8 °C
Absolute minimum temperature: -6.7 °C
Number of sunny days: 4
Number of rainy days: 11
Number of snow days: 16
Precipitation sum: 52 mm
* Weather data for Mariehamn Åland is based on climate observations for 2023 year
Dicembre (°C) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum temperature | -1.5 | -2.8 | -1.5 | -1.5 | -3.5 | -1 | 1.4 | 0.5 | -0.7 | 1 | 0.3 | -3.1 | -2.5 | -0.8 | -0.7 | 6.8 | 5.4 | 4 | 5.7 | 1.5 | 2.4 | 1.6 | 1.3 | -0.4 | 0.6 | -0.5 | 1.1 | 2.5 | 2.1 | 0.5 | -3.8 |
Apparent max temperature | -7.7 | -6.4 | -7 | -5.7 | -7.4 | -4.9 | -2.8 | -6.5 | -6.8 | -3.9 | -6.1 | -9 | -8 | -5.7 | -4.8 | -0.8 | -1.2 | -1.3 | -1 | -2.1 | -1.6 | -3.6 | -3.3 | -5 | -4.2 | -3.6 | -5.4 | -0.7 | -0.7 | -3.2 | -9.1 |
Mean temperature | -2.5 | -3.2 | -3.5 | -3.2 | -4.2 | -3.5 | 0.7 | -0.2 | -1.6 | -0.2 | -0.7 | -3.5 | -3.3 | -1.8 | -2.2 | 2.6 | 3.1 | 2.6 | 3.4 | 0.4 | 1.3 | 1.1 | 0.8 | -2.8 | -0.9 | -2.5 | -0.6 | 0.2 | 1.2 | -1.2 | -5.8 |
Apparent mean temperature | -9.3 | -9 | -10.2 | -9.2 | -9.3 | -8.9 | -6.7 | -7.4 | -8.3 | -7.1 | -9.3 | -9.8 | -10.2 | -7.9 | -9.5 | -5.3 | -2.8 | -3.1 | -5.7 | -6.5 | -7 | -7.5 | -6.9 | -9.1 | -6.7 | -9.7 | -9.4 | -10.6 | -3.9 | -9.8 | -12.3 |
Minimum temperature | -3.1 | -4.1 | -4.5 | -4.5 | -4.6 | -4.7 | -0.5 | -0.9 | -2.3 | -1.7 | -3 | -4.1 | -4.3 | -2.6 | -4.9 | -0.7 | 2.3 | 1.7 | 0.7 | -0.9 | 0.1 | 0.4 | -0.4 | -4.8 | -3.1 | -4.9 | -3.7 | -6 | 0.5 | -3.9 | -6.7 |
Apparent min temperature | -8.5 | -7.7 | -8.6 | -7.8 | -8.5 | -7.3 | -5.3 | -6.9 | -7.5 | -5.4 | -6.9 | -9.3 | -9.1 | -6.8 | -6.8 | -3.2 | -2 | -2.1 | -3.4 | -4.5 | -4.1 | -5.8 | -4.4 | -8 | -5.2 | -6.8 | -6.9 | -5 | -2.8 | -6.1 | -11.1 |
Dicembre | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Daylight duration (h) | 6.5 | 6.4 | 6.4 | 6.3 | 6.3 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6 | 6 | 6 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.8 | 5.8 | 5.8 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 6 | 6 |
Sunshine duration (h) | 0 | 0 | 0 | 0.4 | 0 | 2.7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.2 | 0 | 3.3 | 3.1 | 3 | 1.5 | 0 | 0.5 | 0 | 0 | 3.3 | 0 | 0 | 0 | 0 | 0 |
Precipitation (mm) | 0 | 0.6 | 1.3 | 2.1 | 0.6 | 0.1 | 2.7 | 3.7 | 0.9 | 0.8 | 1.3 | 0.9 | 0.1 | 0.1 | 0.2 | 0 | 0.1 | 0 | 4.4 | 7.6 | 1.9 | 11.1 | 0.9 | 0.2 | 1.3 | 0.8 | 1.2 | 2.5 | 3.6 | 0.8 | 0 |
Precipitation hours | 0 | 5 | 11 | 6 | 6 | 1 | 12 | 13 | 9 | 7 | 13 | 9 | 1 | 1 | 2 | 0 | 1 | 0 | 5 | 9 | 9 | 19 | 5 | 2 | 11 | 4 | 7 | 13 | 6 | 6 | 0 |
Wind speed (m/s) | 27.4 | 15.9 | 20.2 | 29 | 14 | 8.7 | 35.2 | 33.7 | 25.6 | 24.8 | 29 | 25 | 22.5 | 18 | 19.6 | 41.6 | 32.9 | 29 | 39.5 | 27.8 | 42.5 | 43.8 | 27.8 | 27.8 | 17.4 | 16.9 | 34.2 | 34.5 | 22.3 | 20.1 | 19.9 |
In December 2023, the highest daytime temperature in Mariehamn was 6.8°C.
While the minimum temperature at night dropped to -6.7°C.
The average nighttime and daytime temperatures during December in Mariehamn are -2.6°C and 0.5°C respectively.
The precipitation sum in December is about 52 mm.