Average annual temperature is 15.6 °C
Absolute maximum temperature: 38.5 °C
Absolute minimum temperature: -6.0 °C
Number of sunny days: 154 days
Number of rainy days: 206 days
Number of snow days: 5 days
Look at detailed online map of Annaka
* Weather data for Annaka 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) | 15.1 | 18.4 | 23.7 | 28.5 | 32.8 | 31.4 | 38.5 | 37.3 | 32.8 | 26.5 | 26.1 | 19.6 |
| Average daytime temperature (°C) | 8.8 | 10.1 | 16.9 | 20.9 | 23.6 | 26.3 | 32.5 | 32.4 | 29.1 | 21.9 | 17.2 | 12.2 |
| Average temperature (°C) | 3.1 | 4.5 | 11.0 | 14.4 | 17.9 | 21.9 | 27.3 | 27.4 | 24.8 | 16.1 | 11.4 | 6.1 |
| Average night temperature (°C) | -0.6 | 0.5 | 6.0 | 8.8 | 12.9 | 18.3 | 22.5 | 23.7 | 21.6 | 11.4 | 6.9 | 1.9 |
| Absolute minimum temperature (°C) | -6.0 | -2.6 | -0.2 | 1.7 | 6.1 | 12.9 | 20.1 | 21.2 | 14.7 | 6.5 | 1.0 | -2.5 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.4 | 7.9 | 8.4 | 9.2 | 9.0 | 7.8 | 9.7 | 9.5 | 8.2 | 8.9 | 7.8 | 7.6 |
| Precipitation (mm) | 22 | 52 | 118 | 86 | 197 | 339 | 118 | 237 | 228 | 80 | 56 | 26 |
| Sunny days | 17 | 17 | 14 | 15 | 13 | 5 | 10 | 0 | 5 | 17 | 18 | 23 |
| Rainy days | 11 | 9 | 17 | 15 | 18 | 25 | 21 | 31 | 25 | 14 | 12 | 8 |
| Snow days | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Annaka is at