Average annual temperature is 15.9 °C
Absolute maximum temperature: 33.9 °C
Absolute minimum temperature: -6.3 °C
Number of sunny days: 146 days
Number of rainy days: 213 days
Number of snow days: 6 days
Look at detailed online map of Ōtsu-shi
* Weather data for Ōtsu-shi 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) | 14.2 | 15.0 | 21.5 | 25.2 | 28.4 | 30.0 | 33.7 | 33.9 | 32.7 | 25.5 | 24.1 | 18.2 |
| Average daytime temperature (°C) | 7.8 | 8.9 | 15.2 | 18.4 | 22.2 | 25.3 | 30.8 | 31.5 | 29.7 | 21.1 | 16.4 | 11.4 |
| Average temperature (°C) | 3.7 | 4.9 | 10.3 | 13.6 | 17.9 | 21.9 | 27.0 | 27.8 | 25.8 | 17.3 | 12.1 | 7.1 |
| Average night temperature (°C) | 0.3 | 1.7 | 6.5 | 9.6 | 14.2 | 18.9 | 23.8 | 24.9 | 22.9 | 13.9 | 8.8 | 3.6 |
| Absolute minimum temperature (°C) | -6.3 | -2.3 | 0.5 | 4.2 | 8.1 | 12.3 | 21.3 | 23.5 | 19.0 | 9.2 | 3.3 | -1.3 |
| 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) | 6.9 | 5.9 | 8.5 | 7.9 | 9.3 | 6.8 | 9.8 | 10.1 | 9.9 | 8.8 | 7.3 | 7.0 |
| Precipitation (mm) | 64 | 55 | 121 | 191 | 216 | 293 | 125 | 186 | 143 | 53 | 109 | 65 |
| Sunny days | 9 | 11 | 17 | 17 | 17 | 6 | 8 | 3 | 10 | 14 | 15 | 19 |
| Rainy days | 19 | 14 | 14 | 13 | 14 | 24 | 23 | 28 | 20 | 17 | 15 | 12 |
| Snow days | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ōtsu-shi is at