Average annual temperature is 13.8 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: -12.1 °C
Number of sunny days: 118 days
Number of rainy days: 232 days
Number of snow days: 15 days
Look at detailed online map of Katsuyama
* Weather data for Katsuyama 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) | 14.4 | 14.1 | 21.2 | 25.4 | 30.1 | 29.8 | 33.6 | 32.7 | 31.4 | 24.3 | 24.2 | 18.3 |
| Average daytime temperature (°C) | 6.1 | 7.6 | 14.7 | 17.3 | 21.8 | 25.3 | 29.8 | 30.1 | 27.5 | 19.7 | 14.6 | 9.0 |
| Average temperature (°C) | 1.7 | 3.0 | 8.8 | 11.7 | 16.3 | 20.4 | 24.8 | 25.6 | 23.0 | 14.6 | 9.9 | 4.9 |
| Average night temperature (°C) | -1.8 | -0.4 | 4.3 | 7.4 | 12.0 | 16.7 | 21.0 | 22.8 | 20.1 | 10.8 | 6.4 | 1.8 |
| Absolute minimum temperature (°C) | -12.1 | -4.0 | -3.8 | 0.0 | 4.9 | 10.7 | 16.4 | 21.2 | 17.0 | 4.6 | 0.1 | -3.7 |
| 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 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.8 | 6.1 | 7.9 | 7.5 | 8.5 | 7.5 | 8.7 | 8.5 | 8.3 | 8.8 | 7.0 | 6.0 |
| Precipitation (mm) | 67 | 67 | 82 | 241 | 237 | 229 | 260 | 203 | 98 | 29 | 57 | 84 |
| Sunny days | 8 | 8 | 15 | 13 | 15 | 8 | 7 | 1 | 5 | 14 | 13 | 11 |
| Rainy days | 16 | 15 | 16 | 17 | 16 | 22 | 24 | 30 | 25 | 17 | 16 | 18 |
| Snow days | 7 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The largest precipitation sum in Katsuyama is at