Average temperature in December is -2.7 °C
Average daytime temperature is -0.4 °C
Average night temperature is -5.6 °C
Absolute maximum temperature: 6.3 °C
Absolute minimum temperature: -14.4 °C
Number of sunny days: 10
Number of rainy days: 12
Number of snow days: 9
Precipitation sum: 57 mm
* Weather data for Sundbyberg Sweden 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 | -0.3 | -4.8 | -4.5 | -7.3 | -7.2 | -7 | 0.4 | 1.4 | 0.7 | 0.4 | 1 | -2 | -2.9 | -7.6 | 0.5 | 5.5 | 4 | 5.5 | 6.3 | 1 | 1.1 | 0.9 | 0.3 | -0.7 | 0.5 | -1.1 | -1.5 | 2.2 | 3.2 | 1 | -2.8 |
| Apparent max temperature | -4.5 | -9.5 | -9.2 | -12 | -11.1 | -11 | -3.5 | -2.5 | -3.6 | -3.1 | -3 | -6.5 | -7.1 | -12.3 | -3.3 | 0.4 | 0.4 | 1.6 | 1.7 | -2.2 | -2.9 | -4.3 | -4.9 | -5.6 | -2.9 | -5.8 | -6.8 | -1.1 | -0.8 | -1.6 | -7 |
| Mean temperature | -1.3 | -6.7 | -6.5 | -10.1 | -8.9 | -9.5 | -2 | 0.4 | -0.4 | -0.5 | 0.3 | -3.2 | -3.7 | -8.8 | -4.3 | 2.4 | 2.3 | 3.5 | 2.5 | -0.5 | -0.2 | 0.5 | -2.5 | -8.5 | -0.3 | -8.3 | -5.3 | -1.7 | 1.4 | -0.4 | -3.9 |
| Apparent mean temperature | -7.7 | -12.5 | -15.4 | -18.7 | -14.8 | -15.4 | -12.1 | -4.7 | -5.4 | -5.1 | -6.2 | -8 | -12.9 | -15.5 | -13.8 | -6.8 | -3.9 | -2 | -6.2 | -7.7 | -5.5 | -5.3 | -10.8 | -19.6 | -5.5 | -17.6 | -15.5 | -15.3 | -3.5 | -6.8 | -9.5 |
| Minimum temperature | -3.3 | -7.8 | -10.6 | -13.6 | -10.6 | -11.2 | -8 | -0.9 | -1.2 | -1.3 | -1.7 | -3.8 | -7.8 | -10.7 | -9.3 | -2.5 | -0.1 | 1.7 | -1.6 | -3.2 | -1.5 | -0.1 | -5.7 | -14.4 | -2 | -12.5 | -10 | -10.5 | -0.3 | -2.6 | -5.5 |
| Apparent min temperature | -5.7 | -11.5 | -11.3 | -14.9 | -12.8 | -13.6 | -5.8 | -3.6 | -4.6 | -4.1 | -4 | -7.5 | -8.2 | -13.6 | -8.3 | -2.1 | -1.4 | -0.1 | -2.6 | -4 | -4.4 | -4.8 | -7.8 | -13.2 | -3.8 | -13.1 | -10.5 | -5.8 | -1.9 | -3.8 | -8.2 |
| 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) | 6.6 | 6.6 | 6.5 | 6.5 | 6.5 | 6.4 | 6.4 | 6.3 | 6.3 | 6.3 | 6.2 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.2 | 6.2 |
| Sunshine duration (h) | 0 | 0 | 0 | 3.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.6 | 3.7 | 0 | 0 | 0 | 0 | 3.7 | 1.4 | 1.2 | 3.8 | 0 | 0 | 0 | 0 |
| Precipitation (mm) | 0.6 | 0 | 0.1 | 0 | 0 | 0 | 2.1 | 1.1 | 1.2 | 0.1 | 2.6 | 0.4 | 0 | 0 | 0.3 | 0 | 2.4 | 0.9 | 0.8 | 5.7 | 5.8 | 15 | 0.6 | 3.2 | 3.3 | 0 | 0 | 3.6 | 6.4 | 0.8 | 0 |
| Precipitation hours | 5 | 0 | 1 | 0 | 0 | 0 | 11 | 8 | 12 | 1 | 19 | 4 | 0 | 0 | 3 | 0 | 5 | 1 | 2 | 7 | 9 | 24 | 6 | 5 | 13 | 0 | 0 | 10 | 12 | 3 | 0 |
| Wind speed (m/s) | 17 | 14.1 | 12.6 | 12.4 | 6.8 | 8.4 | 10 | 14.8 | 14.1 | 13 | 16.3 | 13.1 | 13.9 | 12.5 | 11.6 | 29.2 | 19.5 | 18.6 | 28.1 | 13.1 | 24.1 | 27.2 | 21.3 | 17.1 | 16.2 | 15.3 | 19 | 19.2 | 14.5 | 11.5 | 14.6 |
In December 2023, the highest daytime temperature in Sundbyberg was 6.3°C.
While the minimum temperature at night dropped to -14.4°C.
The average nighttime and daytime temperatures during December in Sundbyberg are -5.6°C and -0.4°C respectively.
The precipitation sum in December is about 57 mm.