Average annual temperature is 15.7 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: -5.7 °C
Number of sunny days: 140 days
Number of rainy days: 217 days
Number of snow days: 8 days
Look at detailed online map of Ryūsen
* Weather data for Ryūsen 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) | 17.4 | 16.3 | 22.0 | 24.6 | 27.0 | 29.8 | 34.6 | 37.5 | 33.3 | 24.8 | 26.1 | 21.2 |
| Average daytime temperature (°C) | 8.0 | 9.0 | 15.7 | 18.8 | 22.5 | 25.6 | 31.0 | 32.4 | 29.5 | 21.1 | 16.3 | 11.3 |
| Average temperature (°C) | 4.1 | 4.7 | 10.4 | 13.8 | 17.8 | 21.8 | 26.7 | 27.8 | 25.1 | 16.4 | 11.9 | 7.3 |
| Average night temperature (°C) | 0.4 | 0.6 | 5.5 | 9.1 | 13.2 | 18.1 | 23.0 | 24.1 | 21.5 | 12.3 | 8.0 | 3.5 |
| Absolute minimum temperature (°C) | -5.7 | -4.2 | -0.7 | 4.0 | 7.5 | 12.0 | 19.5 | 22.1 | 17.6 | 7.6 | 1.8 | -0.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.1 | 6.5 | 8.5 | 8.1 | 9.1 | 7.0 | 10.4 | 9.8 | 9.8 | 8.6 | 7.1 | 7.0 |
| Precipitation (mm) | 70 | 50 | 104 | 178 | 258 | 400 | 126 | 233 | 122 | 73 | 118 | 60 |
| Sunny days | 12 | 12 | 18 | 13 | 14 | 9 | 9 | 3 | 7 | 15 | 15 | 13 |
| Rainy days | 16 | 13 | 13 | 17 | 17 | 21 | 22 | 28 | 23 | 16 | 15 | 16 |
| Snow days | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Ryūsen during the most sunny months:
The largest precipitation sum in Ryūsen is at