Average temperature in December is 1.7 °C
Average daytime temperature is 3.7 °C
Average night temperature is -0.3 °C
Absolute maximum temperature: 9.2 °C
Absolute minimum temperature: -9.3 °C
Number of sunny days: 6
Number of rainy days: 18
Number of snow days: 7
Precipitation sum: 65 mm
* Weather data for Ronneby 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 | -0.3 | -2.2 | -2.9 | 2.7 | 1.5 | 1.6 | 3.2 | 2.7 | 3.8 | 2.8 | 1.3 | -1.1 | -0.4 | 4.6 | 9 | 9.2 | 8.8 | 8.5 | 4.4 | 6.3 | 2.4 | -0.2 | 6.5 | 6.5 | 5.6 | 2.5 | 7.1 | 6.8 | 4.9 | 4.1 |
| Apparent max temperature | -4.5 | -4.1 | -7.5 | -7.6 | -2.7 | -3.1 | -1.5 | -0.5 | -1.4 | -0.6 | -1.3 | -3.4 | -5.8 | -3.9 | 0.6 | 4.2 | 4.9 | 5.8 | 3.9 | -0.1 | 1.3 | -3.7 | -6 | 1.3 | 0.9 | 1.4 | -2 | 2.2 | 2.2 | 0.6 | 0.5 |
| Mean temperature | -2.5 | -3 | -5.1 | -6 | 0.9 | 1.1 | 0.7 | 1.4 | 2.1 | 2.6 | 2.2 | -0.9 | -2.2 | -2.1 | 2.4 | 6.4 | 8.2 | 8 | 6.5 | 3.1 | 3.4 | 0.8 | -1.7 | 1.3 | 4.8 | 3.2 | 0.4 | 5.1 | 6 | 3.7 | 3.3 |
| Apparent mean temperature | -9.4 | -9.9 | -11.4 | -13.8 | -7.5 | -4.8 | -3.5 | -4.1 | -3.2 | -2.7 | -3.7 | -8.8 | -8.8 | -8.3 | -5.6 | 0.5 | 2.3 | 2.5 | -1.7 | -3.7 | -3.8 | -8.3 | -8.6 | -8.3 | -2.7 | -3.2 | -6.1 | -4.3 | -0.7 | -1.9 | -1.8 |
| Minimum temperature | -4.9 | -5.3 | -6.6 | -9.3 | -2.4 | 0.8 | 0 | -1 | 1.1 | 1.9 | 1.2 | -4.4 | -4.2 | -3.5 | -1.4 | 4.6 | 7.2 | 7.3 | 2.5 | 1.5 | 1.2 | -1.3 | -3.3 | -3.4 | 2.6 | 1.9 | -2.7 | 1.7 | 5.1 | 1.7 | 1.7 |
| Apparent min temperature | -7 | -7 | -9.8 | -10.1 | -4 | -4.1 | -2.7 | -2.3 | -2.2 | -1.8 | -2.2 | -5.1 | -7.1 | -6.1 | -1.6 | 1.9 | 3.7 | 4.2 | 2.2 | -1.5 | -1.6 | -5.7 | -7.8 | -2.9 | -1.1 | -1.2 | -3.8 | 0.3 | 0.9 | -0.1 | -1 |
| 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) | 7.4 | 7.3 | 7.3 | 7.3 | 7.2 | 7.2 | 7.1 | 7.1 | 7.1 | 7.1 | 7 | 7 | 7 | 7 | 7 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 7 | 7 | 7 |
| Sunshine duration (h) | 0.1 | 3.8 | 4.5 | 4.6 | 4.6 | 0 | 0 | 0 | 0 | 0 | 0 | 4.2 | 0.9 | 2.6 | 0 | 0 | 0 | 0 | 0.5 | 0 | 0 | 0 | 5 | 0 | 4.5 | 1.5 | 5.1 | 1.8 | 0.6 | 4.1 | 0 |
| Precipitation (mm) | 0.3 | 0.1 | 0.5 | 0 | 0.2 | 3.3 | 7.4 | 1.8 | 1.3 | 4.2 | 3.8 | 0.1 | 0 | 0.1 | 0.1 | 0 | 1.3 | 1.1 | 0.8 | 1.6 | 7.4 | 1.6 | 0 | 4.9 | 0.1 | 6.5 | 0 | 8.4 | 6.9 | 0 | 1.7 |
| Precipitation hours | 3 | 1 | 3 | 0 | 2 | 14 | 18 | 12 | 12 | 18 | 16 | 1 | 0 | 1 | 1 | 0 | 7 | 7 | 5 | 10 | 9 | 11 | 0 | 10 | 1 | 11 | 0 | 12 | 15 | 0 | 8 |
| Wind speed (m/s) | 14.9 | 12.9 | 17.3 | 15.8 | 21.1 | 22.9 | 15.5 | 19.7 | 17.6 | 20.1 | 21.2 | 17.4 | 17.9 | 15.3 | 19.5 | 29.7 | 28.6 | 28.1 | 27.9 | 22.8 | 32 | 31.8 | 29.5 | 29.7 | 37.6 | 23.2 | 21.7 | 31.2 | 31 | 19.8 | 28 |
In December 2023, the highest daytime temperature in Ronneby was 9.2°C.
While the minimum temperature at night dropped to -9.3°C.
The average nighttime and daytime temperatures during December in Ronneby are -0.3°C and 3.7°C respectively.
The precipitation sum in December is about 65 mm.