Average temperature in September is 21.2 °C
Average daytime temperature is 25.5 °C
Average night temperature is 18 °C
Absolute maximum temperature: 31.2 °C
Absolute minimum temperature: 9.8 °C
Number of sunny days: 3
Number of rainy days: 27
Number of snow days:
Precipitation sum: 159 mm
* Weather data for Tōno Japan is based on climate observations for 2023 year
| September (°C) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 31.2 | 25.9 | 28.6 | 28.2 | 27.2 | 24.4 | 26.3 | 23.6 | 27.7 | 29.5 | 29.1 | 28.8 | 27.6 | 27.9 | 27.9 | 25.6 | 26.3 | 28.8 | 26.2 | 23.9 | 21.7 | 23.1 | 22.3 | 22.5 | 21 | 22.9 | 21.8 | 23.1 | 22.1 | 19.9 |
| Apparent max temperature | 35.5 | 30.1 | 32.2 | 30.9 | 32.3 | 28.9 | 28.2 | 24.6 | 32.1 | 33.8 | 32.7 | 33.4 | 31.9 | 31.4 | 31.1 | 28.5 | 31.1 | 32.8 | 29.7 | 25.5 | 25.2 | 24.5 | 21.7 | 22.6 | 20.6 | 23.4 | 23.8 | 24.7 | 20.9 | 19.6 |
| Mean temperature | 25.3 | 22.9 | 24.3 | 23.8 | 23.9 | 21 | 21 | 21 | 23.6 | 24.2 | 24.7 | 23.8 | 22.3 | 23.6 | 22.5 | 22.1 | 24.2 | 24 | 22.2 | 20.4 | 19.1 | 17.7 | 16.6 | 16 | 18.8 | 18.8 | 17.8 | 18.3 | 16.3 | 16.9 |
| Apparent mean temperature | 24.3 | 23 | 24.3 | 25.9 | 25.8 | 18.3 | 16.1 | 19.4 | 23.5 | 23.2 | 25.1 | 24.1 | 21.5 | 23.6 | 21.8 | 23.1 | 26.8 | 23.4 | 22.3 | 19.9 | 18.6 | 12.6 | 11.2 | 9.1 | 17.1 | 18.3 | 16.3 | 16.8 | 8.6 | 16.6 |
| Minimum temperature | 20.5 | 20.1 | 21.1 | 21.8 | 21.6 | 16.8 | 15.6 | 18.3 | 19.8 | 20.1 | 21.9 | 20.4 | 19 | 20.9 | 19.2 | 20.1 | 22.3 | 20.4 | 20 | 18.2 | 17.1 | 12.8 | 11.3 | 10.3 | 17.2 | 16.6 | 15.4 | 15.6 | 9.8 | 15.1 |
| Apparent min temperature | 29.6 | 26.7 | 27.6 | 27.4 | 28.5 | 24.5 | 22.1 | 21.7 | 28.1 | 28.2 | 28.1 | 27.8 | 25.9 | 26.9 | 25.1 | 25.3 | 28.3 | 27.4 | 25.3 | 22.2 | 21.1 | 18.3 | 16.4 | 15.6 | 19.1 | 20.4 | 19.5 | 19.2 | 15.4 | 17.8 |
| September | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 13.1 | 13 | 13 | 12.9 | 12.9 | 12.9 | 12.8 | 12.8 | 12.7 | 12.7 | 12.6 | 12.6 | 12.6 | 12.5 | 12.5 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.1 | 12.1 | 12 | 12 | 12 | 11.9 | 11.9 | 11.8 |
| Sunshine duration (h) | 9.5 | 2.3 | 11.3 | 4 | 6.4 | 3.6 | 10.5 | 2.7 | 8.5 | 9 | 11 | 9 | 10.1 | 9.2 | 10.4 | 7.7 | 9.6 | 11 | 6 | 2.6 | 0 | 8 | 11 | 11 | 3.6 | 2.8 | 5 | 5.1 | 10.4 | 3.4 |
| Precipitation (mm) | 2.2 | 1.8 | 0.5 | 23.8 | 4.6 | 10 | 0 | 3.4 | 6.2 | 0.9 | 1 | 3.7 | 13.4 | 7.4 | 3.6 | 1 | 0.7 | 2 | 1.5 | 4.9 | 10.8 | 0.4 | 0 | 0 | 2.4 | 9.8 | 17.7 | 12.3 | 1.5 | 11.9 |
| Precipitation hours | 4 | 9 | 2 | 16 | 16 | 16 | 0 | 8 | 15 | 6 | 4 | 12 | 8 | 20 | 3 | 6 | 6 | 8 | 6 | 13 | 14 | 3 | 0 | 0 | 6 | 13 | 11 | 9 | 5 | 17 |
| Wind speed (m/s) | 9.7 | 8.1 | 11.5 | 14.3 | 9.7 | 8.9 | 12.8 | 18.8 | 10.4 | 8 | 14.8 | 12.5 | 9.9 | 12 | 8.7 | 8.8 | 12.4 | 16.9 | 12.3 | 17.4 | 15.1 | 10.5 | 9.8 | 10.9 | 13.7 | 12.1 | 7.6 | 23 | 22.9 | 14 |
In September 2023, the highest daytime temperature in Tōno was 31.2°C.
While the minimum temperature at night dropped to 9.8°C.
The average nighttime and daytime temperatures during September in Tōno are 18°C and 25.5°C respectively.
The precipitation sum in September is about 159 mm.