Average annual temperature is 15.4 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -5.5 °C
Number of sunny days: 150 days
Number of rainy days: 213 days
Number of snow days: 2 days
Look at detailed online map of Keta
* Weather data for Keta 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) | 15.0 | 15.7 | 24.8 | 26.8 | 32.0 | 31.7 | 35.2 | 34.4 | 32.7 | 28.0 | 24.9 | 19.0 |
| Average daytime temperature (°C) | 9.2 | 11.2 | 16.6 | 18.9 | 22.7 | 25.9 | 31.2 | 31.0 | 29.4 | 21.9 | 17.3 | 12.5 |
| Average temperature (°C) | 4.0 | 5.7 | 10.9 | 13.7 | 17.4 | 21.4 | 25.8 | 26.1 | 24.4 | 16.2 | 12.0 | 6.9 |
| Average night temperature (°C) | 0.1 | 1.2 | 6.0 | 8.8 | 13.1 | 17.5 | 21.6 | 22.7 | 20.8 | 11.5 | 7.9 | 2.6 |
| Absolute minimum temperature (°C) | -5.5 | -4.5 | -1.8 | 1.7 | 7.3 | 11.8 | 18.6 | 20.4 | 15.1 | 6.8 | 0.1 | -2.6 |
| 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 | 10.3 | 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) | 7.7 | 7.4 | 8.3 | 8.3 | 8.6 | 6.9 | 10.3 | 10.4 | 9.5 | 8.7 | 7.8 | 7.4 |
| Precipitation (mm) | 34 | 60 | 211 | 267 | 315 | 577 | 107 | 223 | 255 | 144 | 139 | 94 |
| Sunny days | 20 | 15 | 14 | 11 | 10 | 9 | 4 | 2 | 7 | 18 | 18 | 22 |
| Rainy days | 9 | 13 | 17 | 19 | 21 | 21 | 27 | 29 | 23 | 13 | 12 | 9 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Keta is at