Average temperature in September is 26.1 °C
Average daytime temperature is 30.2 °C
Average night temperature is 22.8 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: 19.5 °C
Number of sunny days: 4
Number of rainy days: 26
Number of snow days:
Precipitation sum: 110 mm
* Weather data for Nakatsu 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 | 29.6 | 30.5 | 32.4 | 34.2 | 28.9 | 30.8 | 31.7 | 30.6 | 30.4 | 30.3 | 30 | 31.8 | 32 | 28.2 | 31 | 32.1 | 32.9 | 31.8 | 29.5 | 30.3 | 29.8 | 27.3 | 27.8 | 27.6 | 29 | 30.6 | 29.1 | 29.4 | 27.9 | 28.3 |
| Apparent max temperature | 35.7 | 36.2 | 36.7 | 38.6 | 33.5 | 33.3 | 34.8 | 33.7 | 32.7 | 35.1 | 34.5 | 35.9 | 35.1 | 34.1 | 37.4 | 37.6 | 37.3 | 38 | 34.6 | 34.8 | 34.7 | 31.2 | 30.8 | 27.4 | 31.5 | 35.4 | 34.5 | 31.3 | 31.1 | 32.2 |
| Mean temperature | 26.6 | 27.3 | 28 | 28.6 | 25.9 | 26.8 | 27 | 26 | 26.4 | 26.5 | 25.8 | 27.4 | 27.5 | 25.2 | 27.2 | 27.4 | 26.7 | 26.5 | 25.6 | 27.5 | 25.7 | 23.7 | 24.4 | 24 | 25.6 | 25 | 25.3 | 25.1 | 24.1 | 24.7 |
| Apparent mean temperature | 29.4 | 26.8 | 27.5 | 28.9 | 27.4 | 25.6 | 25.2 | 23.3 | 25.5 | 27 | 25.3 | 27 | 27.7 | 28.7 | 27.9 | 27.9 | 24.9 | 27.3 | 26.4 | 29.2 | 26 | 24.9 | 19.9 | 22.2 | 27.2 | 26.2 | 24.5 | 23.4 | 22.3 | 23.7 |
| Minimum temperature | 24.5 | 23.6 | 24 | 24.7 | 23.4 | 23.5 | 22.7 | 21.4 | 22.5 | 23.1 | 22.1 | 23.6 | 24.2 | 23.3 | 24 | 23.8 | 22.5 | 23.4 | 22.5 | 25.4 | 22.3 | 22.3 | 19.5 | 20.6 | 23.5 | 22.2 | 21.7 | 21.2 | 20.2 | 22 |
| Apparent min temperature | 32.6 | 31.9 | 32.2 | 32.5 | 30.3 | 29 | 29.6 | 28.1 | 29.6 | 30.4 | 29.8 | 31 | 31.4 | 31.1 | 32.9 | 32.6 | 30.6 | 31.1 | 30.4 | 31.6 | 29.7 | 27.1 | 25.7 | 24.9 | 28.8 | 29.5 | 29.7 | 27.1 | 27 | 27.7 |
| 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) | 0.4 | 5.8 | 11.8 | 11 | 9.4 | 10.9 | 11.7 | 11.7 | 11.6 | 9.3 | 11.5 | 11.5 | 7.8 | 1.5 | 10.3 | 10.3 | 11.5 | 10.2 | 9.6 | 9 | 6.7 | 5.9 | 8 | 9.8 | 9.4 | 10.3 | 11 | 10.9 | 10.7 | 10.4 |
| Precipitation (mm) | 7.3 | 0.3 | 0.6 | 0 | 5.7 | 1.8 | 0.2 | 0 | 0 | 5.1 | 0.7 | 0.2 | 2.3 | 12.7 | 4.2 | 0.8 | 19.7 | 5.8 | 5.7 | 0.2 | 9.7 | 6.3 | 0.1 | 0 | 6.1 | 9.5 | 2.5 | 0.2 | 0.1 | 2.2 |
| Precipitation hours | 15 | 3 | 4 | 0 | 12 | 7 | 1 | 0 | 0 | 5 | 1 | 2 | 7 | 12 | 6 | 5 | 7 | 5 | 4 | 2 | 18 | 6 | 1 | 0 | 7 | 5 | 13 | 2 | 1 | 9 |
| Wind speed (m/s) | 8.6 | 11.2 | 12.6 | 23.8 | 17.2 | 25.7 | 20 | 18.9 | 10.5 | 12.1 | 11.6 | 12 | 16.3 | 9.7 | 11.1 | 13.8 | 20.5 | 12.4 | 8.3 | 13.8 | 16.9 | 10.8 | 17.4 | 20 | 16.1 | 14.7 | 15.8 | 18.5 | 11.9 | 15 |
In September 2023, the highest daytime temperature in Nakatsu was 34.2°C.
While the minimum temperature at night dropped to 19.5°C.
The average nighttime and daytime temperatures during September in Nakatsu are 22.8°C and 30.2°C respectively.
The precipitation sum in September is about 110 mm.