Average annual temperature is 16.1 °C
Absolute maximum temperature: 40.8 °C
Absolute minimum temperature: -4.8 °C
Number of sunny days: 176 days
Number of rainy days: 186 days
Number of snow days: 3 days
Look at detailed online map of Ryūmaichō
* Weather data for Ryūmaichō 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) | 13.5 | 17.8 | 25.0 | 29.7 | 32.9 | 31.8 | 40.8 | 39.0 | 34.6 | 26.7 | 27.4 | 19.3 |
| Average daytime temperature (°C) | 8.7 | 10.9 | 17.8 | 21.7 | 24.0 | 26.9 | 33.9 | 33.7 | 30.4 | 22.5 | 17.8 | 12.6 |
| Average temperature (°C) | 3.2 | 5.1 | 11.9 | 15.2 | 18.0 | 22.4 | 28.0 | 28.2 | 25.6 | 16.9 | 11.9 | 6.6 |
| Average night temperature (°C) | -1.0 | 0.3 | 6.7 | 9.6 | 13.0 | 18.6 | 23.2 | 24.3 | 22.1 | 12.2 | 7.3 | 2.0 |
| Absolute minimum temperature (°C) | -4.8 | -4.5 | 1.1 | 3.4 | 7.0 | 13.7 | 20.6 | 22.3 | 14.7 | 8.1 | 0.7 | -3.4 |
| 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 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.5 | 8.3 | 8.2 | 9.2 | 9.2 | 7.6 | 10.1 | 10.4 | 8.7 | 8.6 | 7.6 | 7.7 |
| Precipitation (mm) | 15 | 33 | 87 | 52 | 165 | 294 | 95 | 179 | 185 | 99 | 64 | 21 |
| Sunny days | 23 | 18 | 17 | 15 | 14 | 5 | 10 | 4 | 7 | 19 | 22 | 22 |
| Rainy days | 6 | 9 | 14 | 15 | 17 | 25 | 21 | 27 | 23 | 12 | 8 | 9 |
| Snow days | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ryūmaichō is at