Average annual temperature is 8.6 °C
Absolute maximum temperature: 32.7 °C
Absolute minimum temperature: -18.7 °C
Number of sunny days: 82 days
Number of rainy days: 203 days
Number of snow days: 80 days
Look at detailed online map of Rumoi Shi
* Weather data for Rumoi 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) | 6.8 | 7.0 | 13.9 | 18.2 | 23.8 | 28.3 | 31.4 | 32.7 | 27.6 | 21.9 | 17.8 | 10.3 |
| Average daytime temperature (°C) | -4.2 | -2.4 | 5.9 | 10.9 | 17.1 | 22.3 | 25.5 | 28.2 | 23.4 | 15.7 | 7.6 | -0.6 |
| Average temperature (°C) | -6.8 | -5.1 | 1.6 | 6.6 | 11.9 | 17.6 | 21.5 | 24.1 | 19.1 | 11.0 | 4.2 | -3.6 |
| Average night temperature (°C) | -9.4 | -7.6 | -2.2 | 3.3 | 7.5 | 14.0 | 18.4 | 21.2 | 15.8 | 7.4 | 0.9 | -7.0 |
| Absolute minimum temperature (°C) | -14.2 | -14.9 | -6.9 | -4.8 | 0.9 | 6.0 | 12.8 | 16.8 | 9.4 | 1.2 | -8.8 | -18.7 |
| 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) | 9.3 | 10.5 | 11.9 | 13.4 | 14.7 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 4.4 | 6.0 | 8.1 | 8.0 | 10.2 | 10.2 | 9.9 | 9.4 | 8.1 | 7.7 | 5.0 | 3.0 |
| Precipitation (mm) | 119 | 100 | 93 | 123 | 44 | 196 | 134 | 259 | 140 | 132 | 178 | 159 |
| Sunny days | 1 | 1 | 15 | 8 | 12 | 8 | 9 | 4 | 8 | 11 | 3 | 2 |
| Rainy days | 6 | 3 | 10 | 21 | 19 | 22 | 22 | 27 | 22 | 20 | 22 | 9 |
| Snow days | 24 | 24 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 20 |
The best time to visit Rumoi Shi during the most sunny months:
Months with the longest average daylight duration in Rumoi Shi:
The largest precipitation sum in Rumoi Shi is at