Average annual temperature is 13.8 °C
Absolute maximum temperature: 38.2 °C
Absolute minimum temperature: -8.1 °C
Number of sunny days: 109 days
Number of rainy days: 245 days
Number of snow days: 11 days
Look at detailed online map of Jōetsu Shi
* Weather data for Jōetsu Shi 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) | 11.5 | 13.0 | 22.0 | 23.3 | 26.3 | 28.6 | 31.9 | 38.2 | 34.8 | 24.8 | 25.6 | 16.8 |
| Average daytime temperature (°C) | 4.3 | 5.0 | 12.7 | 15.8 | 19.9 | 24.0 | 28.8 | 33.9 | 28.7 | 19.7 | 14.9 | 8.8 |
| Average temperature (°C) | 1.0 | 1.3 | 7.3 | 11.0 | 15.3 | 20.2 | 25.0 | 29.0 | 24.3 | 14.8 | 10.4 | 4.6 |
| Average night temperature (°C) | -1.4 | -1.4 | 2.7 | 6.6 | 11.4 | 16.9 | 21.6 | 24.8 | 20.9 | 11.0 | 6.9 | 1.0 |
| Absolute minimum temperature (°C) | -6.1 | -5.3 | -3.0 | 0.8 | 4.2 | 11.0 | 16.2 | 22.0 | 14.5 | 6.8 | 1.7 | -8.1 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.7 | 5.4 | 7.7 | 8.0 | 8.6 | 7.8 | 9.5 | 11.6 | 8.1 | 8.3 | 6.3 | 4.6 |
| Precipitation (mm) | 446 | 272 | 124 | 135 | 181 | 232 | 111 | 25 | 199 | 229 | 237 | 321 |
| Sunny days | 3 | 5 | 14 | 12 | 13 | 7 | 13 | 15 | 6 | 8 | 9 | 4 |
| Rainy days | 22 | 19 | 17 | 18 | 18 | 23 | 18 | 16 | 24 | 23 | 21 | 26 |
| Snow days | 6 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Jōetsu Shi during the most sunny months:
The largest precipitation sum in Jōetsu Shi is at