Average temperature in September is 14 °C
Average daytime temperature is 17.9 °C
Average night temperature is 10.1 °C
Absolute maximum temperature: 25.4 °C
Absolute minimum temperature: 2.9 °C
Number of sunny days: 11
Number of rainy days: 19
Number of snow days:
Precipitation sum: 82 mm
* Weather data for Perth United Kingdom 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 | 17.5 | 19.9 | 20.8 | 21.9 | 20.9 | 21.3 | 23.5 | 25.4 | 24.2 | 23.1 | 19.7 | 16.5 | 14.1 | 16.9 | 14.2 | 15.6 | 14.9 | 16 | 16.1 | 17.5 | 14.3 | 16 | 12.4 | 19.2 | 17 | 16.1 | 14.9 | 16 | 15.7 | 14.4 |
| Apparent max temperature | 16 | 18.1 | 18.8 | 20.7 | 20.4 | 22.1 | 24.9 | 27 | 23.9 | 23.9 | 19.3 | 14.9 | 11.5 | 13.4 | 13.5 | 13.2 | 13.4 | 14.3 | 13.2 | 15.6 | 10.2 | 13.7 | 10.4 | 17.9 | 13.7 | 13.8 | 12.7 | 14.3 | 11 | 13.3 |
| Mean temperature | 12.9 | 14.3 | 17.1 | 16.8 | 14.9 | 16.8 | 17.4 | 18.6 | 18.8 | 17.7 | 16.7 | 12 | 11.3 | 13.8 | 11.8 | 11.8 | 12 | 13 | 11.6 | 15 | 11.5 | 11.4 | 9 | 15.1 | 14.7 | 13.3 | 11.9 | 14.6 | 13.2 | 11.9 |
| Apparent mean temperature | 7.4 | 6.9 | 13.3 | 11.9 | 7.3 | 13.1 | 13.6 | 15.2 | 15 | 12 | 10.8 | 4.5 | 4.9 | 9.1 | 8.5 | 6.6 | 5.4 | 5.3 | 5.8 | 7.4 | 6.3 | 5.5 | 0.1 | 8.6 | 9.4 | 9.4 | 5.9 | 9.7 | 7.8 | 6.7 |
| Minimum temperature | 8.8 | 8.5 | 14.2 | 12.3 | 8.4 | 13.6 | 13 | 14.3 | 14.2 | 12.3 | 12.2 | 6.5 | 6.4 | 10.4 | 9.9 | 8.2 | 7.3 | 8.7 | 9 | 10.3 | 9.6 | 7.2 | 2.9 | 10.9 | 12.2 | 11 | 7.7 | 13.1 | 11.6 | 8.3 |
| Apparent min temperature | 11.6 | 13.3 | 15.7 | 16.1 | 14.4 | 17.1 | 18.6 | 20.1 | 19.2 | 18.6 | 15.6 | 10.4 | 9.4 | 11 | 11.2 | 10.3 | 10.5 | 10.9 | 9.2 | 11.9 | 8.2 | 9.4 | 6.9 | 13.5 | 11.7 | 11.5 | 9.8 | 11.7 | 9.5 | 10.5 |
| 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) | 13.9 | 13.8 | 13.7 | 13.7 | 13.6 | 13.5 | 13.4 | 13.4 | 13.3 | 13.2 | 13.1 | 13 | 13 | 12.9 | 12.8 | 12.7 | 12.7 | 12.6 | 12.5 | 12.4 | 12.3 | 12.3 | 12.2 | 12.1 | 12 | 11.9 | 11.9 | 11.8 | 11.7 | 11.6 |
| Sunshine duration (h) | 12 | 10 | 11.7 | 12.4 | 11 | 9.4 | 7.7 | 11 | 11.9 | 7.7 | 9 | 11.6 | 4.2 | 11.7 | 0 | 7.7 | 0 | 6.2 | 1.1 | 9.7 | 9.9 | 10.3 | 5.6 | 2.7 | 8.8 | 4.1 | 2.8 | 6.3 | 10.1 | 1.8 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 2.2 | 0 | 2.2 | 0.3 | 9.6 | 5.3 | 1.7 | 12 | 11.9 | 3.1 | 0.4 | 0.2 | 0.1 | 8.6 | 1.5 | 3.1 | 10.5 | 3.6 | 0 | 2 |
| Precipitation hours | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 4 | 0 | 8 | 2 | 13 | 10 | 10 | 13 | 13 | 9 | 3 | 1 | 1 | 15 | 8 | 7 | 11 | 6 | 0 | 5 |
| Wind speed (m/s) | 13 | 19.6 | 24 | 21.1 | 16 | 11.9 | 13.8 | 8.8 | 21.9 | 13.2 | 19.6 | 11.4 | 18.1 | 25.1 | 7.4 | 13 | 16.8 | 25.5 | 30.9 | 37.9 | 29.3 | 17.1 | 12.7 | 31.7 | 29.8 | 22.1 | 30.6 | 31.4 | 35.8 | 16.1 |
In September 2023, the highest daytime temperature in Perth was 25.4°C.
While the minimum temperature at night dropped to 2.9°C.
The average nighttime and daytime temperatures during September in Perth are 10.1°C and 17.9°C respectively.
The precipitation sum in September is about 82 mm.