Average annual temperature is 15.0 °C
Absolute maximum temperature: 34.8 °C
Absolute minimum temperature: -6.9 °C
Number of sunny days: 128 days
Number of rainy days: 223 days
Number of snow days: 14 days
Look at detailed online map of Tamaru
* Weather data for Tamaru 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) | 15.8 | 16.0 | 22.2 | 25.2 | 29.5 | 29.5 | 34.8 | 34.8 | 31.3 | 24.4 | 24.4 | 20.1 |
| Average daytime temperature (°C) | 7.0 | 9.3 | 15.6 | 18.0 | 22.0 | 25.6 | 30.1 | 30.5 | 28.1 | 20.4 | 15.6 | 9.8 |
| Average temperature (°C) | 3.5 | 5.0 | 10.2 | 13.1 | 17.2 | 21.2 | 25.8 | 26.4 | 23.7 | 15.8 | 11.3 | 6.2 |
| Average night temperature (°C) | 0.8 | 1.8 | 6.2 | 9.4 | 13.8 | 18.3 | 22.7 | 23.9 | 20.9 | 12.8 | 7.9 | 3.4 |
| Absolute minimum temperature (°C) | -6.9 | -2.4 | -1.0 | 4.8 | 8.0 | 12.1 | 19.6 | 21.6 | 16.8 | 9.0 | 1.0 | -4.4 |
| 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) | 5.7 | 6.2 | 8.1 | 7.9 | 8.4 | 7.6 | 8.9 | 9.0 | 8.6 | 8.3 | 7.4 | 5.4 |
| Precipitation (mm) | 92 | 108 | 87 | 195 | 173 | 228 | 230 | 156 | 93 | 27 | 64 | 101 |
| Sunny days | 10 | 11 | 17 | 14 | 14 | 9 | 5 | 2 | 6 | 14 | 15 | 11 |
| Rainy days | 14 | 14 | 13 | 16 | 17 | 21 | 26 | 29 | 24 | 17 | 14 | 18 |
| Snow days | 7 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The largest precipitation sum in Tamaru is at