Average annual temperature is 16.2 °C
Absolute maximum temperature: 35.6 °C
Absolute minimum temperature: -7.3 °C
Number of sunny days: 168 days
Number of rainy days: 192 days
Number of snow days: 5 days
Look at detailed online map of Akaiwa
* Weather data for Akaiwa 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) | 17.8 | 15.6 | 23.6 | 26.0 | 29.2 | 31.6 | 35.0 | 35.6 | 33.5 | 27.8 | 26.3 | 20.4 |
| Average daytime temperature (°C) | 9.4 | 10.2 | 17.2 | 19.5 | 23.4 | 26.5 | 31.0 | 32.1 | 30.4 | 22.9 | 17.4 | 11.9 |
| Average temperature (°C) | 4.5 | 5.4 | 11.2 | 14.0 | 18.3 | 22.2 | 26.8 | 28.1 | 25.9 | 17.6 | 12.5 | 7.3 |
| Average night temperature (°C) | 0.7 | 1.5 | 6.0 | 9.4 | 14.1 | 18.6 | 23.4 | 25.1 | 22.6 | 13.3 | 8.8 | 3.9 |
| Absolute minimum temperature (°C) | -7.3 | -2.8 | -0.9 | 3.3 | 8.2 | 13.7 | 20.2 | 23.6 | 18.6 | 8.4 | 2.5 | -2.3 |
| 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) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 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) | 6.9 | 6.6 | 8.3 | 7.8 | 8.8 | 7.1 | 9.4 | 10.2 | 9.3 | 8.9 | 7.7 | 7.0 |
| Precipitation (mm) | 29 | 37 | 80 | 229 | 222 | 241 | 160 | 218 | 77 | 24 | 61 | 44 |
| Sunny days | 19 | 11 | 19 | 15 | 16 | 10 | 8 | 3 | 8 | 22 | 17 | 20 |
| Rainy days | 10 | 14 | 12 | 15 | 15 | 20 | 23 | 28 | 22 | 9 | 13 | 11 |
| Snow days | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Akaiwa is at