Average temperature in January is -1.2 °C
Average daytime temperature is 0.3 °C
Average night temperature is -2.7 °C
Absolute maximum temperature: 8.2 °C
Absolute minimum temperature: -9.2 °C
Number of sunny days: 1
Number of rainy days: 6
Number of snow days: 24
Precipitation sum: 120 mm
* Weather data for Muroran Japan is based on climate observations for 2023 year
| January (°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 | 2.9 | -3.2 | -1.8 | -0.9 | 0.8 | 1.8 | 1.7 | 2.4 | 2.7 | 2.7 | 5.6 | 6.8 | 8.2 | 5.9 | 1.1 | -0.6 | -1.6 | -0.3 | 3.6 | 2.1 | -1.5 | -2.3 | -1.3 | -3.7 | -5.9 | -3 | -2.3 | -3.8 | -3.5 | -1.3 | -1.5 |
| Apparent max temperature | -5.1 | -12.9 | -11.4 | -9.9 | -6.8 | -3.5 | -2.7 | -1.8 | -3.4 | -3.5 | 0.6 | 5 | 4.9 | 0.8 | -5.3 | -6.5 | -6.2 | -6.5 | -2.7 | -2.9 | -10.2 | -8.5 | -7.7 | -11.5 | -16.7 | -10.7 | -8.4 | -13.4 | -8.2 | -7.1 | -5.7 |
| Mean temperature | -1.4 | -3.7 | -3.1 | -2 | 0.4 | 1.3 | 0.9 | 1.7 | 0.7 | 0 | 5 | 5.9 | 7.1 | 1.7 | -0.6 | -2.1 | -2 | -2.5 | 0.9 | 0.6 | -3.4 | -3.5 | -2.5 | -7.5 | -7.1 | -3.9 | -2.9 | -5.3 | -4.7 | -3 | -2.4 |
| Apparent mean temperature | -14.9 | -14.5 | -13.6 | -12.3 | -10.6 | -6.5 | -4.8 | -5.2 | -9 | -9.6 | -4.3 | 0.8 | 0.4 | -6.2 | -8.4 | -9.8 | -10.2 | -9.9 | -8.1 | -10.5 | -13.5 | -12.5 | -12.3 | -20.6 | -20.9 | -15.5 | -12.5 | -16.3 | -15.3 | -13.1 | -13.6 |
| Minimum temperature | -4.6 | -4.4 | -4.2 | -3.1 | -0.5 | 0.6 | 0.2 | 0.9 | -1.2 | -1.8 | 3.4 | 5.2 | 5.2 | -1.6 | -1.8 | -3.5 | -2.5 | -3.8 | -2.6 | -2 | -4.7 | -4.8 | -3.9 | -9.2 | -8.2 | -5.3 | -4 | -6.2 | -5.8 | -4.3 | -4.2 |
| Apparent min temperature | -11 | -13.7 | -12.7 | -11 | -8.8 | -5.1 | -3.8 | -3.7 | -6.5 | -8 | -1.6 | 2.3 | 3.2 | -3.6 | -7.3 | -9 | -8.2 | -8.8 | -4.7 | -7 | -12.5 | -11.3 | -9.6 | -17.8 | -19 | -13.1 | -9.8 | -15.3 | -10.8 | -10.4 | -9.5 |
| January | 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) | 9.1 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.3 | 9.3 | 9.3 | 9.3 | 9.4 | 9.4 | 9.4 | 9.4 | 9.5 | 9.5 | 9.5 | 9.5 | 9.6 | 9.6 | 9.6 | 9.7 | 9.7 | 9.7 | 9.8 | 9.8 | 9.8 | 9.9 | 9.9 | 10 |
| Sunshine duration (h) | 7.8 | 7.9 | 7.9 | 7.7 | 7.6 | 7.8 | 8 | 7.8 | 5.3 | 7.8 | 7.2 | 8.2 | 7.8 | 0.7 | 0.3 | 6.7 | 1.3 | 7.1 | 6.5 | 7.5 | 8.5 | 8 | 4 | 0.8 | 8.6 | 8.2 | 8.6 | 8.6 | 8.6 | 7.6 | 8 |
| Precipitation (mm) | 4.8 | 5 | 7.4 | 3.4 | 3.1 | 0.2 | 1.8 | 3.8 | 0.4 | 0.2 | 2.4 | 0 | 4.4 | 0.7 | 13.8 | 1.7 | 1.4 | 0.3 | 4.9 | 11.4 | 2.3 | 1.5 | 7.2 | 8 | 11.2 | 3.3 | 1.5 | 6.3 | 1.9 | 4.1 | 1.4 |
| Precipitation hours | 20 | 24 | 24 | 21 | 16 | 2 | 9 | 10 | 4 | 2 | 3 | 0 | 11 | 4 | 24 | 11 | 8 | 3 | 6 | 11 | 20 | 10 | 11 | 23 | 24 | 19 | 9 | 23 | 10 | 16 | 9 |
| Wind speed (m/s) | 53.8 | 50.7 | 48.9 | 47.8 | 51.4 | 35.5 | 17.3 | 32.9 | 40.5 | 41.5 | 46.9 | 28.7 | 26.4 | 26.1 | 42.2 | 35.2 | 38.3 | 39.2 | 63.4 | 59.4 | 44.7 | 42.4 | 57.3 | 57.4 | 64.9 | 54.1 | 38.5 | 51.7 | 42.3 | 45.6 | 46.1 |
In January 2023, the highest daytime temperature in Muroran was 8.2°C.
While the minimum temperature at night dropped to -9.2°C.
The average nighttime and daytime temperatures during January in Muroran are -2.7°C and 0.3°C respectively.
The precipitation sum in January is about 120 mm.