Average temperature in September is 26 °C
Average daytime temperature is 28.8 °C
Average night temperature is 23.9 °C
Absolute maximum temperature: 32.1 °C
Absolute minimum temperature: 21.3 °C
Number of sunny days: 4
Number of rainy days: 26
Number of snow days:
Precipitation sum: 223 mm
* Weather data for Asahi 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 | 31.3 | 32.1 | 29.5 | 28.2 | 31.5 | 29 | 28.3 | 27.4 | 28.3 | 29.9 | 29 | 29.1 | 29.1 | 29.4 | 31.7 | 30.5 | 30.4 | 30.2 | 31.2 | 30.6 | 29 | 27.2 | 23.3 | 24.4 | 24.9 | 27.8 | 27.6 | 31 | 26.3 | 26.9 |
| Apparent max temperature | 34.7 | 36.3 | 32.6 | 32.2 | 36.5 | 33.2 | 30.5 | 31.1 | 31.7 | 35.4 | 34 | 33 | 34.5 | 34.4 | 36.3 | 36.2 | 35.5 | 34.3 | 34.7 | 36.2 | 33.3 | 31.6 | 24.7 | 24.5 | 26.9 | 31.3 | 32.7 | 35.1 | 28.3 | 30 |
| Mean temperature | 28.3 | 27.9 | 26.4 | 26.3 | 27.7 | 25.8 | 25.5 | 24.4 | 26.3 | 26.9 | 26.6 | 25.6 | 26.5 | 27 | 27.5 | 27.5 | 27.7 | 27.4 | 27.5 | 25.7 | 27 | 24.4 | 22.5 | 22.7 | 23.2 | 24.1 | 24.8 | 26.7 | 24.7 | 25.4 |
| Apparent mean temperature | 30.8 | 29.9 | 28.5 | 29.1 | 30 | 27.3 | 24.5 | 23 | 28.4 | 30.2 | 28.8 | 26.4 | 29.7 | 29.9 | 31 | 31.1 | 29.5 | 28.5 | 29.6 | 26.9 | 27.1 | 23.4 | 21.2 | 21.2 | 23.3 | 25.1 | 27 | 26.4 | 25.9 | 26.9 |
| Minimum temperature | 25.9 | 24.8 | 24.2 | 25.2 | 25.6 | 23.5 | 23 | 22.2 | 24.6 | 24.9 | 24.4 | 22.6 | 24.3 | 24.6 | 25.1 | 25.6 | 25.9 | 25.7 | 24.6 | 22.5 | 25.9 | 22 | 21.3 | 21.6 | 21.3 | 21.7 | 23 | 24.3 | 23.1 | 23.9 |
| Apparent min temperature | 32 | 32.5 | 30.3 | 31.1 | 32 | 29.8 | 28.1 | 27.1 | 29.9 | 32 | 31.3 | 29.4 | 31.7 | 31.7 | 32.8 | 33.1 | 31.5 | 30.5 | 31.9 | 30.7 | 29.5 | 27.1 | 22.9 | 22.2 | 25 | 27.3 | 29 | 30.5 | 27.3 | 28 |
| 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 | 12.9 | 12.9 | 12.8 | 12.8 | 12.8 | 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 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12 | 12 | 11.9 | 11.9 | 11.9 |
| Sunshine duration (h) | 11.9 | 11.7 | 8 | 10.3 | 9.6 | 7 | 5 | 1.9 | 10.1 | 11.2 | 8.4 | 11.3 | 11.1 | 11.2 | 10.7 | 11 | 11.1 | 11 | 11 | 9.4 | 6.6 | 5.5 | 0 | 10 | 10 | 7.1 | 7.6 | 9.4 | 8.6 | 10.8 |
| Precipitation (mm) | 0.1 | 0 | 47.5 | 4.6 | 1.3 | 2.9 | 32.3 | 88.4 | 0.4 | 0.2 | 1.4 | 0.2 | 1.3 | 0.5 | 0.1 | 0.4 | 0 | 0.4 | 0.1 | 10 | 4 | 8.8 | 9.7 | 0 | 2.7 | 0.1 | 3.5 | 0 | 1 | 0.8 |
| Precipitation hours | 1 | 0 | 19 | 12 | 2 | 7 | 11 | 23 | 3 | 1 | 5 | 2 | 6 | 3 | 1 | 2 | 0 | 2 | 1 | 11 | 4 | 15 | 12 | 0 | 5 | 1 | 10 | 0 | 4 | 4 |
| Wind speed (m/s) | 23 | 18.2 | 21.4 | 21.6 | 25.1 | 19.7 | 26.2 | 40.3 | 28.4 | 15.8 | 14.6 | 14.4 | 11.9 | 16.1 | 15.6 | 15.2 | 21.1 | 23.5 | 22.5 | 13.4 | 32.9 | 21.8 | 24.4 | 28.7 | 20.4 | 12.4 | 14.7 | 16.5 | 16.9 | 21.8 |
In September 2023, the highest daytime temperature in Asahi was 32.1°C.
While the minimum temperature at night dropped to 21.3°C.
The average nighttime and daytime temperatures during September in Asahi are 23.9°C and 28.8°C respectively.
The precipitation sum in September is about 223 mm.