Average temperature in December is 9.7 °C
Average daytime temperature is 13.5 °C
Average night temperature is 6.3 °C
Absolute maximum temperature: 21.7 °C
Absolute minimum temperature: -0.5 °C
Number of sunny days: 17
Number of rainy days: 14
Number of snow days:
Precipitation sum: 64 mm
* Weather data for Sukumo 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 | 10.4 | 11.7 | 13.9 | 14.5 | 14.2 | 15.5 | 14.2 | 17.3 | 18.4 | 19.5 | 19.2 | 20.4 | 16.3 | 18 | 21.7 | 16 | 6.1 | 8.1 | 7.8 | 11 | 5.4 | 4.3 | 7 | 10.7 | 9.3 | 10.5 | 13.9 | 15 | 14.5 | 17.3 | 17.2 |
| Apparent max temperature | 4.6 | 7 | 9.6 | 12.5 | 14.1 | 14.3 | 9.1 | 16.3 | 18 | 19 | 20.4 | 20.4 | 15.1 | 17.4 | 22.6 | 14.1 | -0.4 | 3.7 | 5.4 | 6.1 | -0.6 | -0.4 | 2.5 | 8.4 | 3.8 | 6.6 | 11.7 | 13.3 | 12.1 | 16 | 15.1 |
| Mean temperature | 8.8 | 8.9 | 8.5 | 11.4 | 10.6 | 13 | 8.5 | 12.4 | 13 | 15 | 17.4 | 14.1 | 12.2 | 14.8 | 19.3 | 9.7 | 4 | 5.6 | 6.3 | 7.7 | 3.2 | 3.3 | 3.4 | 6.7 | 5.9 | 8.2 | 7.4 | 11 | 8 | 12.7 | 11.1 |
| Apparent mean temperature | 3 | 3.2 | -0.5 | 5.5 | 4.9 | 6.7 | -1 | 7 | 5.8 | 9.9 | 13.4 | 4.5 | 7.1 | 11.1 | 12.7 | -2.1 | -2.6 | 0.3 | 3.1 | -2 | -3.7 | -3.9 | -4.2 | 0.6 | -3.2 | 3.4 | -0.1 | 5.5 | 0.3 | 6.4 | 3.6 |
| Minimum temperature | 7.3 | 6.2 | 2.8 | 8.4 | 6.8 | 9.4 | 2.4 | 10 | 8 | 11.9 | 15.1 | 6.9 | 9.1 | 13.1 | 14.7 | 4.6 | 2.9 | 4.1 | 5.5 | 3.7 | 1.6 | 2.2 | -0.5 | 3.7 | 0.2 | 5.7 | 2.8 | 8.1 | 3.5 | 9.4 | 6.3 |
| Apparent min temperature | 3.9 | 5.1 | 5.4 | 8.9 | 9.4 | 11.1 | 4.6 | 10.8 | 11.9 | 13.7 | 17.2 | 12.8 | 10.6 | 13.6 | 19.1 | 4.4 | -1.4 | 2 | 4 | 2.2 | -2.4 | -2.1 | -0.4 | 3.8 | 1.7 | 5.3 | 4.7 | 8.5 | 5.4 | 11.4 | 7.2 |
| 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) | 10.1 | 10.1 | 10.1 | 10.1 | 10.1 | 10.1 | 10.1 | 10.1 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Sunshine duration (h) | 6.5 | 9.2 | 9.2 | 8.4 | 0.9 | 7.3 | 9.1 | 8.6 | 8.8 | 8.6 | 3.1 | 5.2 | 9.1 | 5.7 | 8.5 | 3 | 1.5 | 8.6 | 0 | 6.9 | 7.7 | 8.7 | 7.7 | 8.9 | 8.9 | 8.8 | 8.8 | 8.9 | 8.8 | 6.3 | 9 |
| Precipitation (mm) | 0 | 0 | 0 | 2.3 | 13 | 0 | 0 | 0 | 0 | 0.4 | 19.4 | 0 | 0 | 2.7 | 3.9 | 4.4 | 0.4 | 0.8 | 9.7 | 0 | 0.4 | 0.6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.7 | 0.1 |
| Precipitation hours | 0 | 0 | 0 | 6 | 13 | 0 | 0 | 0 | 0 | 2 | 16 | 0 | 0 | 13 | 8 | 5 | 4 | 5 | 14 | 0 | 4 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 1 |
| Wind speed (m/s) | 32.7 | 20.3 | 21.8 | 19.4 | 16.6 | 27.2 | 30.4 | 14.1 | 11 | 18.4 | 24.4 | 21.2 | 15.7 | 19 | 27.6 | 33.3 | 33 | 15.5 | 17.5 | 29.9 | 24.5 | 30.7 | 16.4 | 15.1 | 26 | 16.7 | 12.5 | 16.4 | 13.6 | 12.8 | 32 |
In December 2023, the highest daytime temperature in Sukumo was 21.7°C.
While the minimum temperature at night dropped to -0.5°C.
The average nighttime and daytime temperatures during December in Sukumo are 6.3°C and 13.5°C respectively.
The precipitation sum in December is about 64 mm.