Average temperature in December is 3.5 °C
Average daytime temperature is 7.6 °C
Average night temperature is 0.2 °C
Absolute maximum temperature: 13.1 °C
Absolute minimum temperature: -6.2 °C
Number of sunny days: 15
Number of rainy days: 14
Number of snow days: 2
Precipitation sum: 108 mm
* Weather data for Mirna Slovenia 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 | 8.7 | 4.9 | 2 | 1.1 | 1.7 | 3.3 | 6.1 | 2.3 | 3 | 7.9 | 8.9 | 8.3 | 7.8 | 9.7 | 7.9 | 6.8 | 6.6 | 9.3 | 9 | 7 | 4.5 | 9.4 | 10.1 | 7.6 | 13.1 | 11.9 | 8.9 | 11.3 | 12.2 | 11.3 | 13 |
| Apparent max temperature | 6.8 | 2.2 | -1.8 | -1.9 | -0.5 | 1.1 | 4 | -0.5 | 0.4 | 6 | 7.1 | 6.9 | 6.4 | 8.3 | 4.9 | 2.7 | 4.1 | 6.7 | 6 | 4.4 | 1.5 | 7.4 | 8.5 | 5.2 | 9.3 | 7.5 | 7.6 | 6 | 7.5 | 9.7 | 10 |
| Mean temperature | 5.9 | 2.7 | -1 | -2.7 | -0.4 | 0.2 | 0.5 | -0.6 | 0.4 | 2.7 | 5.2 | 6 | 6.5 | 4.7 | 2.6 | 2.3 | 1 | 1.4 | 1.4 | 1.2 | 1.9 | 4.1 | 4.2 | 4.3 | 9.5 | 8 | 4.9 | 7.9 | 7.9 | 7.7 | 7.6 |
| Apparent mean temperature | 0.4 | -3.3 | -8.9 | -10 | -7.2 | -5.6 | -6.7 | -6.3 | -4.7 | -3.2 | -3 | 0.1 | 1.6 | -1.8 | -3.1 | -4.8 | -6 | -5.5 | -6.1 | -5.5 | -5.7 | -2.7 | -2.3 | -3 | 2.8 | 1.5 | -0.5 | 1.4 | 2.2 | 2.9 | 0.6 |
| Minimum temperature | 3.2 | 0.1 | -5.2 | -6.2 | -3.7 | -2.5 | -3.1 | -2.8 | -1.8 | -0.4 | 0.1 | 2.7 | 4.4 | 0.7 | -0.4 | -1.8 | -2.8 | -2.1 | -2.3 | -1.6 | -2.3 | 0.5 | 1 | 0.1 | 6.3 | 4.1 | 2.1 | 4.9 | 5.2 | 5 | 3.3 |
| Apparent min temperature | 3.7 | -0.5 | -4.6 | -6 | -3.3 | -2.5 | -2.3 | -3.6 | -2.3 | -0.1 | 2.4 | 4.1 | 4.7 | 2.7 | -0.3 | -0.7 | -2.1 | -1.8 | -2 | -1.9 | -1.7 | 1.1 | 1.5 | 1.1 | 5.7 | 4.4 | 2.8 | 3.7 | 4.6 | 5.4 | 5.3 |
| 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) | 8.9 | 8.9 | 8.9 | 8.9 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.7 | 8.7 | 8.7 | 8.7 | 8.7 | 8.7 | 8.7 | 8.7 | 8.7 | 8.7 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.7 | 8.7 | 8.7 | 8.7 | 8.7 | 8.7 | 8.7 |
| Sunshine duration (h) | 1.6 | 1.8 | 6.1 | 5.2 | 0.4 | 1.2 | 7.5 | 5 | 2.3 | 4.6 | 4.6 | 0 | 0 | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 4.3 | 4.8 | 7.4 | 7.4 | 0 | 6.7 | 7.5 | 7.3 | 7.5 | 7.5 | 7.4 | 6.3 |
| Precipitation (mm) | 7.5 | 32.8 | 2.7 | 0.2 | 4.6 | 2.1 | 0 | 0 | 2.8 | 4 | 0.2 | 1.8 | 45.1 | 0.4 | 0.1 | 0.5 | 0 | 0 | 0 | 0 | 0 | 2.6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Precipitation hours | 18 | 18 | 7 | 2 | 18 | 8 | 0 | 0 | 10 | 7 | 2 | 2 | 23 | 4 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
| Wind speed (m/s) | 14.4 | 17 | 10.9 | 5.4 | 6.8 | 6.8 | 8 | 6.6 | 5.2 | 9.7 | 13.7 | 10.6 | 11.1 | 6 | 12.2 | 16.6 | 6.6 | 8.3 | 7.8 | 8 | 22.6 | 21.6 | 10 | 18.3 | 21.7 | 24.3 | 12.7 | 29.9 | 23.1 | 12.7 | 16.3 |
In December 2023, the highest daytime temperature in Mirna was 13.1°C.
While the minimum temperature at night dropped to -6.2°C.
The average nighttime and daytime temperatures during December in Mirna are 0.2°C and 7.6°C respectively.
The precipitation sum in December is about 108 mm.