Average temperature in December is 4.5 °C
Average daytime temperature is 10.1 °C
Average night temperature is 0.7 °C
Absolute maximum temperature: 18.6 °C
Absolute minimum temperature: -3.5 °C
Number of sunny days: 20
Number of rainy days: 11
Number of snow days:
Precipitation sum: 58 mm
* Weather data for Septemvri Bulgaria 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 | 9.5 | 8.6 | 14.2 | 8.1 | 4.3 | 6.2 | 9 | 6.4 | 7.8 | 1.1 | 9.1 | 14 | 4.7 | 9 | 8.5 | 2.9 | 7.4 | 12.9 | 14.6 | 8.2 | 10.4 | 9.6 | 14.9 | 16.6 | 18.6 | 12.7 | 15.9 | 11.1 | 13.7 | 12.2 | 11.7 |
| Apparent max temperature | 8 | 7.5 | 11.3 | 5.4 | 1.7 | 4.2 | 6.5 | 2.4 | 5.5 | -1.8 | 6.8 | 12.4 | 2.7 | 7.6 | 5.4 | 0.8 | 4.4 | 9.8 | 12.4 | 5.2 | 7 | 7.3 | 10.8 | 15 | 17.7 | 11.2 | 12.9 | 8.8 | 11.8 | 10.3 | 10 |
| Mean temperature | 4.8 | 6.5 | 7.8 | 3.7 | 2.6 | 5 | 5.4 | 3.9 | 1.8 | -0.4 | 3.5 | 6 | 2.6 | 6.3 | 6 | 1.8 | 1.3 | 4.1 | 4.3 | 1.2 | 3.2 | 3.6 | 3.5 | 7.3 | 8.5 | 7.2 | 7.6 | 4.5 | 5.3 | 4.5 | 6.2 |
| Apparent mean temperature | -1.6 | 2.2 | 0.2 | -3 | -2.3 | 1.1 | -1.2 | -2 | -5.1 | -5.3 | -3.5 | -2.3 | -3.4 | 0.4 | 0.5 | -2.8 | -5.8 | -5.3 | -5.6 | -7.3 | -5 | -5.4 | -4.7 | -1.8 | -2.4 | -0.2 | -0.9 | -3.7 | -3.1 | -4.2 | -2 |
| Minimum temperature | 1.1 | 4.7 | 4.3 | 1.3 | 0.8 | 3.6 | 3.2 | 1.3 | -2 | -2.2 | -0.4 | 0.9 | -0.2 | 2.9 | 3.4 | 0.7 | -2.1 | -0.9 | -1.8 | -3.5 | -1 | -1.3 | -1.2 | 1.8 | 1.3 | 3.1 | 2.6 | 0 | 0.6 | -0.4 | 1.4 |
| Apparent min temperature | 2.8 | 4.8 | 4.7 | 0.1 | -0.1 | 3 | 2.2 | -0.2 | -1.3 | -3.3 | 1 | 3.4 | 0.2 | 4 | 3.1 | -0.6 | -2.3 | 0.2 | 0.3 | -2.3 | -0.7 | 0.2 | 0 | 4.3 | 5.5 | 4.5 | 4.2 | 1.5 | 2.4 | 1.4 | 3.6 |
| 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) | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 |
| Sunshine duration (h) | 6 | 2.6 | 5.1 | 8 | 0 | 0 | 1 | 0.8 | 8 | 0 | 7.9 | 7.9 | 5.2 | 6 | 0 | 0 | 7.9 | 7.9 | 8 | 7.7 | 7.9 | 3.5 | 7.8 | 7.9 | 8 | 8 | 8 | 8 | 8 | 7.8 | 7.7 |
| Precipitation (mm) | 0 | 0 | 9.9 | 0.1 | 0.4 | 6 | 5.8 | 0.5 | 0 | 0 | 0 | 0.2 | 0 | 0 | 22 | 12.6 | 0 | 0 | 0 | 0 | 0 | 0.4 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation hours | 0 | 0 | 12 | 1 | 4 | 15 | 11 | 4 | 0 | 0 | 0 | 1 | 0 | 0 | 19 | 16 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wind speed (m/s) | 7.5 | 6.4 | 21.9 | 19 | 7.2 | 8.3 | 20.5 | 19 | 8.8 | 7.3 | 7.1 | 9.9 | 9.4 | 13.6 | 16.5 | 7.7 | 10.1 | 11.9 | 13.4 | 10.9 | 15.3 | 11.2 | 27.1 | 12.4 | 13.6 | 13.6 | 17.1 | 8.4 | 9.9 | 11.4 | 9.4 |
In December 2023, the highest daytime temperature in Septemvri was 18.6°C.
While the minimum temperature at night dropped to -3.5°C.
The average nighttime and daytime temperatures during December in Septemvri are 0.7°C and 10.1°C respectively.
The precipitation sum in December is about 58 mm.