Average temperature in December is 5.1 °C
Average daytime temperature is 10.6 °C
Average night temperature is 1.1 °C
Absolute maximum temperature: 18.1 °C
Absolute minimum temperature: -6 °C
Number of sunny days: 11
Number of rainy days: 12
Number of snow days: 8
Precipitation sum: 134 mm
* Weather data for Komagane Japan 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 | 8.8 | 9 | 5.8 | 11.5 | 11 | 14.2 | 9.3 | 13.7 | 16.8 | 18.1 | 14.8 | 16.6 | 14 | 12.9 | 14.3 | 16 | 3.9 | 6.2 | 7.9 | 10.1 | 1.6 | 0.6 | 3.3 | 8.6 | 7.8 | 10.9 | 11.5 | 12 | 12 | 13.6 | 10.8 |
| Apparent max temperature | 4.6 | 6.3 | 2 | 7.6 | 6.3 | 11.9 | 5.1 | 9.6 | 11.7 | 13.7 | 11 | 17 | 10.7 | 8 | 13.6 | 14 | -0.2 | 1.5 | 3.6 | 6.1 | -3.1 | -4.4 | -0.3 | 3.5 | 3 | 5.5 | 8.5 | 6.7 | 8.9 | 8 | 8.5 |
| Mean temperature | 3.6 | 3.9 | 1.7 | 4.3 | 5.6 | 8.6 | 3.4 | 7.1 | 9.3 | 8.8 | 9.8 | 8.4 | 6.9 | 9.7 | 12.9 | 9.6 | 0.4 | 2.9 | 4.3 | 3.7 | -1.8 | -2.9 | 0.4 | 3.1 | 2.2 | 4.3 | 4 | 5.7 | 3.7 | 8.1 | 6.3 |
| Apparent mean temperature | -2.5 | -3.8 | -5.9 | -3.9 | -1.4 | 2.5 | -4.5 | -0.1 | -0.5 | 1.1 | 3.7 | 0.4 | -1.4 | 3.4 | 7.9 | -2.4 | -7.1 | -3.4 | -0.8 | -4.7 | -8.6 | -10.1 | -8.3 | -4.4 | -5.1 | -3.4 | -3.8 | -3.4 | -4.5 | 1.2 | -2.2 |
| Minimum temperature | 0.4 | 0.1 | -2.3 | -0.9 | 2 | 6.2 | -1.2 | 3.9 | 3.3 | 4.2 | 6.1 | 3.3 | 1.9 | 6.4 | 10.1 | 1.7 | -3.2 | -0.1 | 1.9 | 0 | -3.8 | -6 | -4.3 | -0.7 | -2 | -0.1 | -0.4 | 0.8 | -1.2 | 4.5 | 1.7 |
| Apparent min temperature | 0.3 | 0.6 | -1.9 | 0.6 | 2.1 | 5.2 | 0.1 | 3.4 | 5.3 | 5.5 | 7.6 | 5.8 | 3.7 | 6.4 | 11.1 | 6.8 | -3.8 | -0.7 | 1.1 | -0.3 | -6.3 | -7.2 | -3.3 | -0.9 | -1.3 | 0.6 | 0.7 | 1.8 | 0.5 | 4 | 3.7 |
| 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) | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.8 | 9.8 | 9.8 | 9.8 |
| Sunshine duration (h) | 8.5 | 8.9 | 6 | 8 | 1.8 | 8.8 | 3.4 | 8.8 | 8.8 | 8.1 | 8 | 6 | 8.7 | 8 | 0.1 | 3 | 8.7 | 8.1 | 3.6 | 8 | 3.5 | 8.6 | 8.6 | 8.6 | 8.7 | 8.7 | 8.6 | 8.7 | 8.7 | 8 | 1.2 |
| Precipitation (mm) | 1.1 | 1.1 | 0.7 | 0 | 0.1 | 0.1 | 6.7 | 0 | 0 | 0 | 20.8 | 2.2 | 0 | 6.7 | 47.6 | 14.4 | 0.8 | 0 | 0.3 | 3.2 | 5.1 | 1.8 | 0 | 0 | 1.3 | 0 | 0 | 0.2 | 0 | 9.1 | 10.8 |
| Precipitation hours | 7 | 7 | 5 | 0 | 1 | 1 | 6 | 0 | 0 | 0 | 11 | 6 | 0 | 7 | 24 | 21 | 4 | 0 | 3 | 11 | 13 | 10 | 0 | 0 | 5 | 0 | 0 | 2 | 0 | 7 | 14 |
| Wind speed (m/s) | 11.6 | 12.6 | 17.7 | 8.4 | 8.4 | 17.6 | 20.4 | 14.4 | 14.4 | 9.8 | 11.7 | 16 | 8.2 | 16.2 | 22.7 | 19.5 | 11.2 | 11 | 9.9 | 13.9 | 14.1 | 15.8 | 7.6 | 15.9 | 13.3 | 14.9 | 10.5 | 14 | 6.2 | 15.6 | 14 |
In December 2023, the highest daytime temperature in Komagane was 18.1°C.
While the minimum temperature at night dropped to -6°C.
The average nighttime and daytime temperatures during December in Komagane are 1.1°C and 10.6°C respectively.
The precipitation sum in December is about 134 mm.