Average annual temperature is 9.3 °C
Absolute maximum temperature: 30.8 °C
Absolute minimum temperature: -18.5 °C
Number of sunny days: 119 days
Number of rainy days: 204 days
Number of snow days: 42 days
Look at detailed online map of Ariake
* Weather data for Ariake 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) | 8.8 | 6.6 | 13.5 | 15.0 | 20.8 | 24.0 | 28.9 | 30.8 | 27.4 | 22.3 | 18.9 | 11.4 |
| Average daytime temperature (°C) | -1.8 | -0.5 | 7.5 | 11.0 | 15.7 | 20.1 | 24.6 | 28.0 | 23.8 | 16.2 | 9.9 | 2.2 |
| Average temperature (°C) | -6.6 | -4.8 | 3.3 | 7.5 | 11.4 | 16.7 | 21.5 | 24.9 | 20.3 | 12.2 | 6.1 | -1.4 |
| Average night temperature (°C) | -12.1 | -10.9 | -0.6 | 4.2 | 7.5 | 13.9 | 19.0 | 22.7 | 17.4 | 8.6 | 2.7 | -4.6 |
| Absolute minimum temperature (°C) | -18.5 | -18.2 | -6.3 | -1.9 | 2.0 | 6.3 | 15.3 | 18.9 | 10.4 | 1.3 | -6.1 | -12.8 |
| 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) | 7.1 | 7.8 | 8.7 | 8.4 | 9.7 | 9.1 | 10.0 | 9.7 | 7.3 | 8.0 | 6.4 | 6.0 |
| Precipitation (mm) | 31 | 43 | 89 | 154 | 60 | 107 | 80 | 153 | 283 | 119 | 172 | 38 |
| Sunny days | 12 | 10 | 15 | 7 | 14 | 8 | 10 | 3 | 7 | 11 | 9 | 13 |
| Rainy days | 5 | 5 | 12 | 23 | 17 | 22 | 21 | 28 | 23 | 20 | 20 | 8 |
| Snow days | 14 | 13 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 10 |
The largest precipitation sum in Ariake is at