Average annual temperature is 10.0 °C
Absolute maximum temperature: 27.0 °C
Absolute minimum temperature: -10.1 °C
Number of sunny days: 120 days
Number of rainy days: 189 days
Number of snow days: 56 days
Look at detailed online map of Muroran Shi
* Weather data for Muroran Shi Japan is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 7.8 | 5.6 | 7.3 | 11.4 | 15.6 | 22.3 | 25.5 | 27.0 | 25.5 | 20.5 | 18.1 | 10.8 |
| Average daytime temperature (°C) | -0.5 | 0.3 | 4.7 | 8.1 | 11.9 | 16.2 | 21.7 | 24.9 | 22.7 | 15.9 | 9.8 | 2.6 |
| Average temperature (°C) | -2.1 | -1.3 | 3.0 | 6.3 | 10.0 | 14.8 | 20.4 | 23.9 | 21.4 | 14.3 | 7.8 | 1.0 |
| Average night temperature (°C) | -3.7 | -3.2 | 1.6 | 5.0 | 8.5 | 13.8 | 19.5 | 22.9 | 20.1 | 12.6 | 5.5 | -0.8 |
| Absolute minimum temperature (°C) | -10.1 | -7.8 | -1.1 | 2.6 | 5.2 | 10.8 | 15.6 | 20.5 | 16.4 | 5.8 | -2.8 | -5.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.9 | 12.5 | 11.1 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.6 | 7.3 | 9.0 | 8.8 | 9.8 | 9.0 | 10.1 | 9.0 | 7.1 | 8.3 | 6.5 | 5.4 |
| Precipitation (mm) | 95 | 46 | 62 | 94 | 52 | 128 | 83 | 132 | 169 | 115 | 180 | 97 |
| Sunny days | 2 | 7 | 15 | 12 | 18 | 10 | 16 | 9 | 10 | 10 | 5 | 6 |
| Rainy days | 6 | 7 | 15 | 18 | 13 | 20 | 15 | 22 | 20 | 21 | 22 | 10 |
| Snow days | 23 | 14 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 15 |
The largest precipitation sum in Muroran Shi is at