Average annual temperature is 14.5 °C
Absolute maximum temperature: 38.2 °C
Absolute minimum temperature: -7.4 °C
Number of sunny days: 89 days
Number of rainy days: 263 days
Number of snow days: 13 days
Look at detailed online map of Gejō
* Weather data for Gejō 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) | 15.5 | 14.6 | 23.6 | 24.7 | 30.6 | 29.3 | 33.8 | 38.2 | 35.5 | 25.0 | 27.7 | 17.5 |
| Average daytime temperature (°C) | 5.5 | 6.4 | 14.2 | 17.2 | 21.5 | 25.7 | 30.1 | 35.6 | 29.5 | 20.0 | 15.4 | 9.0 |
| Average temperature (°C) | 2.1 | 2.6 | 7.9 | 11.5 | 16.0 | 21.2 | 25.7 | 29.8 | 24.8 | 15.2 | 10.8 | 5.1 |
| Average night temperature (°C) | -0.7 | -0.8 | 2.6 | 6.5 | 11.1 | 17.4 | 21.6 | 24.8 | 21.2 | 11.4 | 7.2 | 2.0 |
| Absolute minimum temperature (°C) | -6.3 | -7.4 | -3.1 | 0.5 | 3.3 | 12.3 | 15.3 | 21.6 | 15.7 | 7.3 | 2.1 | -3.8 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| 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) | 4.1 | 4.9 | 7.8 | 7.7 | 8.0 | 7.7 | 9.4 | 11.8 | 7.6 | 7.4 | 5.3 | 3.6 |
| Precipitation (mm) | 181 | 134 | 109 | 114 | 170 | 247 | 158 | 27 | 176 | 198 | 203 | 297 |
| Sunny days | 1 | 2 | 14 | 14 | 12 | 6 | 9 | 8 | 5 | 7 | 8 | 3 |
| Rainy days | 23 | 21 | 17 | 16 | 19 | 24 | 22 | 23 | 25 | 24 | 22 | 27 |
| Snow days | 7 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Gejō during the most sunny months:
The largest precipitation sum in Gejō is at