Average temperature in September is 24.7 °C
Average daytime temperature is 29.5 °C
Average night temperature is 21.1 °C
Absolute maximum temperature: 32.4 °C
Absolute minimum temperature: 15.7 °C
Number of sunny days: 3
Number of rainy days: 27
Number of snow days:
Precipitation sum: 95 mm
* Weather data for Usa 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 | 28.5 | 28.8 | 31.7 | 32.4 | 29.6 | 28.6 | 30 | 28.9 | 29.7 | 30.7 | 30.4 | 29.4 | 29.1 | 27.3 | 31.8 | 32.4 | 32.2 | 30.9 | 29.7 | 30.6 | 28.8 | 26.4 | 27.5 | 26.6 | 26.8 | 29 | 30.7 | 27.8 | 28.7 | 30.8 |
| Apparent max temperature | 32.6 | 32.8 | 36.5 | 36.8 | 34.7 | 32.5 | 32.9 | 32.1 | 34.3 | 35.2 | 35.1 | 33.5 | 32.9 | 34 | 39.4 | 38.1 | 37.9 | 36.7 | 35.5 | 34.9 | 32.7 | 30.2 | 30 | 27.2 | 29 | 32.8 | 34.4 | 29.6 | 32.1 | 33.3 |
| Mean temperature | 25.5 | 25.5 | 26.8 | 26.7 | 25.1 | 24.3 | 24.9 | 24.1 | 25.1 | 25 | 24.3 | 25.3 | 25.5 | 24.1 | 26.4 | 26.2 | 25.5 | 24.9 | 25 | 25.9 | 24.4 | 21.9 | 22.1 | 22.4 | 23.9 | 24 | 24.7 | 23.4 | 23.4 | 23.7 |
| Apparent mean temperature | 28.1 | 25.4 | 25.4 | 26.5 | 25.6 | 22.2 | 22.9 | 22.3 | 23.5 | 25.2 | 24.3 | 25.9 | 26 | 25.7 | 27.5 | 26.9 | 24.5 | 25 | 24.1 | 27.1 | 24.4 | 22.3 | 16.6 | 20.5 | 25 | 24.7 | 22.1 | 21.5 | 21.3 | 21.5 |
| Minimum temperature | 23.4 | 22.1 | 22.2 | 22.6 | 21.7 | 20 | 20.2 | 20 | 20.9 | 21.5 | 21 | 22.3 | 22.8 | 21.5 | 22.9 | 22.5 | 21.2 | 21.4 | 20.7 | 23.1 | 21.2 | 20 | 15.7 | 19.5 | 22.4 | 21 | 20.4 | 19.5 | 19 | 19.7 |
| Apparent min temperature | 29.8 | 29.6 | 31 | 30.7 | 29.4 | 27.3 | 27.9 | 26.7 | 28.6 | 28.6 | 28.2 | 28.8 | 28.7 | 29.6 | 32 | 31.3 | 29.8 | 29.5 | 29.6 | 30.3 | 28.1 | 24.8 | 24.1 | 23.5 | 26.6 | 28.3 | 28.4 | 25.5 | 26.5 | 26.6 |
| 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) | 12.9 | 12.8 | 12.8 | 12.8 | 12.7 | 12.7 | 12.7 | 12.6 | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12 | 12 | 12 | 11.9 | 11.9 |
| Sunshine duration (h) | 1.3 | 4.1 | 11.8 | 11 | 8.8 | 10.7 | 11.7 | 11.4 | 11.7 | 9.4 | 11.6 | 11.5 | 8.3 | 1.5 | 10.7 | 9.8 | 11.5 | 9.8 | 8.8 | 8.9 | 6.3 | 6.2 | 7.5 | 9.8 | 9.2 | 10.3 | 11.1 | 10.3 | 10.9 | 9.8 |
| Precipitation (mm) | 5.4 | 0 | 0.1 | 0.2 | 1.6 | 4 | 0 | 0.2 | 0 | 2.9 | 3.3 | 1.7 | 3.3 | 17 | 1.6 | 2.1 | 14.8 | 4.8 | 1.5 | 0.8 | 12.6 | 3.1 | 0.4 | 0.1 | 1.2 | 9.1 | 0.7 | 0.1 | 0.1 | 2 |
| Precipitation hours | 13 | 0 | 1 | 2 | 7 | 14 | 0 | 2 | 0 | 4 | 3 | 5 | 10 | 13 | 6 | 4 | 6 | 7 | 6 | 5 | 13 | 8 | 2 | 1 | 9 | 7 | 4 | 1 | 1 | 10 |
| Wind speed (m/s) | 13.2 | 10.6 | 10.4 | 16.9 | 12.1 | 19.7 | 12 | 11.6 | 7.6 | 12 | 10.7 | 13 | 17.6 | 4.2 | 9.9 | 11.5 | 14.3 | 12.2 | 6.1 | 13 | 17.2 | 10.4 | 10.1 | 15.8 | 20.1 | 15.8 | 12.4 | 15 | 7.4 | 12.5 |
In September 2023, the highest daytime temperature in Usa was 32.4°C.
While the minimum temperature at night dropped to 15.7°C.
The average nighttime and daytime temperatures during September in Usa are 21.1°C and 29.5°C respectively.
The precipitation sum in September is about 95 mm.