Average annual temperature is 16.2 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: -8.6 °C
Number of sunny days: 163 days
Number of rainy days: 200 days
Number of snow days: 2 days
Look at detailed online map of Katayamachō
* Weather data for Katayamachō 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) | 16.1 | 15.5 | 24.7 | 24.0 | 26.2 | 30.2 | 37.9 | 37.9 | 35.0 | 26.1 | 27.8 | 21.0 |
| Average daytime temperature (°C) | 9.0 | 9.8 | 16.5 | 19.2 | 23.0 | 26.1 | 32.3 | 33.7 | 31.5 | 22.5 | 17.4 | 12.3 |
| Average temperature (°C) | 4.0 | 5.0 | 10.8 | 14.2 | 18.3 | 22.4 | 27.6 | 29.0 | 26.6 | 17.0 | 12.2 | 7.1 |
| Average night temperature (°C) | -0.4 | 0.7 | 5.8 | 9.5 | 14.1 | 19.0 | 24.0 | 25.6 | 22.7 | 12.5 | 8.1 | 2.7 |
| Absolute minimum temperature (°C) | -8.6 | -4.0 | -1.2 | 3.6 | 7.8 | 12.4 | 20.5 | 23.5 | 18.4 | 7.8 | 1.1 | -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 | 10.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 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) | 7.2 | 6.2 | 8.4 | 8.0 | 9.3 | 6.9 | 10.1 | 10.0 | 9.8 | 8.7 | 7.4 | 7.1 |
| Precipitation (mm) | 44 | 48 | 112 | 182 | 273 | 337 | 85 | 198 | 113 | 53 | 109 | 37 |
| Sunny days | 11 | 14 | 18 | 15 | 16 | 8 | 14 | 4 | 11 | 16 | 16 | 20 |
| Rainy days | 18 | 14 | 13 | 15 | 15 | 22 | 17 | 27 | 19 | 15 | 14 | 11 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Katayamachō is at