Average annual temperature is 16.4 °C
Absolute maximum temperature: 34.8 °C
Absolute minimum temperature: -5.2 °C
Number of sunny days: 163 days
Number of rainy days: 201 days
Number of snow days: 1 day
Look at detailed online map of Isozu
* Weather data for Isozu 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) | 15.3 | 14.2 | 20.5 | 24.9 | 28.1 | 29.3 | 34.8 | 34.2 | 32.4 | 26.3 | 24.3 | 19.2 |
| Average daytime temperature (°C) | 9.1 | 9.8 | 15.1 | 18.3 | 22.1 | 25.0 | 30.7 | 30.6 | 29.3 | 21.9 | 17.1 | 12.4 |
| Average temperature (°C) | 4.9 | 5.9 | 10.9 | 14.3 | 18.4 | 22.3 | 27.3 | 27.9 | 25.9 | 17.4 | 12.9 | 7.9 |
| Average night temperature (°C) | 1.7 | 2.6 | 7.0 | 10.7 | 15.1 | 19.7 | 23.9 | 25.6 | 23.1 | 13.7 | 9.4 | 4.3 |
| Absolute minimum temperature (°C) | -5.2 | -0.6 | 1.2 | 6.2 | 9.3 | 13.5 | 21.3 | 23.0 | 20.1 | 9.6 | 3.2 | -1.5 |
| 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 | 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) | 7.3 | 7.1 | 8.3 | 8.1 | 9.0 | 6.4 | 10.5 | 10.2 | 9.5 | 8.4 | 7.7 | 7.1 |
| Precipitation (mm) | 30 | 50 | 89 | 146 | 214 | 404 | 100 | 303 | 122 | 89 | 83 | 55 |
| Sunny days | 16 | 14 | 16 | 15 | 17 | 11 | 7 | 4 | 6 | 18 | 18 | 21 |
| Rainy days | 14 | 14 | 15 | 15 | 14 | 19 | 24 | 27 | 24 | 13 | 12 | 10 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Isozu during the most sunny months:
The largest precipitation sum in Isozu is at