Average temperature in December is -9.6 °C
Average daytime temperature is -6.6 °C
Average night temperature is -12.5 °C
Absolute maximum temperature: 2.5 °C
Absolute minimum temperature: -17.5 °C
Number of sunny days: 11
Number of rainy days: 1
Number of snow days: 19
Precipitation sum: 60 mm
* Weather data for Tromsø Norway is based on climate observations for 2023 year
| December (°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 | -4.6 | -4 | -10.4 | -5.5 | -7.5 | -10 | -10.1 | -8.2 | -5.8 | -8.9 | -6.7 | -8.2 | -14.5 | -9.9 | -4.7 | -1.5 | 2.5 | 0.9 | -0.4 | -2.6 | -9.3 | -8.8 | -14 | -7.2 | -6.5 | -2.6 | 0.4 | 0.4 | -9.4 | -12.1 | -15.7 |
| Apparent max temperature | -8.4 | -8.1 | -14.7 | -9.2 | -11.7 | -14.6 | -14.9 | -12.7 | -10.5 | -13.9 | -10.7 | -12.1 | -19.5 | -14.8 | -8.9 | -5.8 | -2.2 | -2.8 | -4.3 | -5.6 | -13.4 | -13 | -18.2 | -10.9 | -10.8 | -7.2 | -3.5 | -3.2 | -13.7 | -16.7 | -20.5 |
| Mean temperature | -6 | -8.6 | -12.1 | -7.7 | -10.4 | -13.1 | -11.7 | -10.8 | -9.3 | -11.1 | -8.7 | -11.8 | -15.6 | -13.1 | -11.8 | -4.5 | 0.4 | -3 | -4.2 | -4.4 | -11.7 | -13.7 | -16 | -10.5 | -12.2 | -6 | -2.5 | -4.6 | -11.6 | -14.5 | -16.4 |
| Apparent mean temperature | -11.6 | -16.9 | -17.5 | -16.4 | -16.4 | -20.5 | -17.4 | -16.9 | -17.9 | -17.8 | -17.5 | -19.9 | -21.7 | -20.2 | -20.6 | -14.9 | -7.4 | -10.8 | -10.7 | -11.6 | -18.5 | -19.3 | -21.9 | -20.9 | -20.3 | -16.9 | -11.1 | -14 | -18 | -21.3 | -22.4 |
| Minimum temperature | -8.1 | -12.1 | -13.4 | -11.3 | -11.9 | -15.5 | -12.7 | -12.2 | -13.2 | -13.1 | -12.7 | -14.9 | -16.6 | -15.1 | -15.6 | -10.2 | -3.1 | -7.2 | -7.1 | -7.4 | -14.2 | -14.8 | -17.5 | -16.4 | -15.8 | -12.7 | -6.5 | -9.7 | -13.4 | -16.2 | -17.5 |
| Apparent min temperature | -9.9 | -12.7 | -16.2 | -11.7 | -14.6 | -17.8 | -16.4 | -15.4 | -13.8 | -15.8 | -13.1 | -16.2 | -20.6 | -18.1 | -16.7 | -8.9 | -4.1 | -6.6 | -7.8 | -8.4 | -16 | -18.1 | -20.3 | -14.8 | -16.6 | -10.4 | -6.6 | -8.4 | -16 | -19.3 | -21.4 |
| December | 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) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Sunshine duration (h) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation (mm) | 0.4 | 0 | 0 | 3.2 | 0.9 | 1.8 | 0 | 0.1 | 0.7 | 0.2 | 1.5 | 0 | 0 | 0 | 2.7 | 6 | 21.1 | 3.7 | 2.7 | 5 | 0.4 | 0.1 | 0 | 0.9 | 0 | 7.8 | 0.5 | 0.1 | 0 | 0 | 0 |
| Precipitation hours | 4 | 0 | 0 | 11 | 5 | 4 | 0 | 1 | 4 | 2 | 12 | 0 | 0 | 0 | 10 | 14 | 23 | 15 | 13 | 16 | 2 | 1 | 0 | 9 | 0 | 16 | 4 | 1 | 0 | 0 | 0 |
| Wind speed (m/s) | 8.9 | 10.2 | 9.6 | 11.4 | 10.7 | 9.9 | 8.9 | 9.1 | 10.5 | 10.7 | 10.8 | 9.2 | 9.8 | 10.6 | 10.3 | 16.2 | 28.1 | 9.2 | 9.9 | 11.2 | 8.1 | 8 | 6 | 10.7 | 10 | 13.6 | 12.3 | 10.9 | 7.6 | 9.3 | 9.2 |
In December 2023, the highest daytime temperature in Tromsø was 2.5°C.
While the minimum temperature at night dropped to -17.5°C.
The average nighttime and daytime temperatures during December in Tromsø are -12.5°C and -6.6°C respectively.
The precipitation sum in December is about 60 mm.