Average temperature in September is 17.1 °C
Average daytime temperature is 21.3 °C
Average night temperature is 12.7 °C
Absolute maximum temperature: 28.8 °C
Absolute minimum temperature: 5.6 °C
Number of sunny days: 10
Number of rainy days: 20
Number of snow days:
Precipitation sum: 49 mm
* Weather data for Gloucester 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 | 20.4 | 22.3 | 24.2 | 27.6 | 27.6 | 28 | 28.8 | 28.7 | 28.6 | 25.6 | 22.7 | 18.6 | 18.7 | 20.1 | 21.8 | 20.8 | 20.3 | 17.9 | 18.8 | 17.7 | 16.1 | 16.2 | 15.9 | 19.8 | 19.3 | 19.2 | 19.6 | 17.2 | 18.7 | 17.4 |
| Apparent max temperature | 20.8 | 22.6 | 26.2 | 28.8 | 28.6 | 31.4 | 32 | 31 | 30.9 | 27.9 | 22.2 | 19.3 | 18.1 | 19.8 | 22.3 | 20.9 | 19.7 | 16.7 | 15.7 | 15.1 | 14.1 | 13.6 | 13.1 | 16.2 | 17.2 | 16.8 | 17.6 | 15.9 | 16 | 15.9 |
| Mean temperature | 16.1 | 17.2 | 18.7 | 20.1 | 20.4 | 21.8 | 23.2 | 22.7 | 22.6 | 20.9 | 19.3 | 16.5 | 14.2 | 16.2 | 16.6 | 16 | 17.2 | 15.7 | 16.5 | 16 | 12.3 | 11.5 | 12 | 17.5 | 16.3 | 15.6 | 15.8 | 15.6 | 15 | 14.5 |
| Apparent mean temperature | 11.6 | 11.2 | 13.3 | 12.9 | 12.8 | 16.6 | 18.7 | 19.4 | 18.5 | 18.1 | 16.8 | 11.8 | 8.1 | 11.7 | 11 | 9.3 | 13.2 | 9.9 | 9.3 | 10.3 | 7.2 | 3.7 | 4.1 | 10.9 | 12.4 | 11.6 | 10.2 | 11.9 | 11.3 | 9.4 |
| Minimum temperature | 11.4 | 11.8 | 12.6 | 12.9 | 13.5 | 15.4 | 17.1 | 17.7 | 16.8 | 16.8 | 15.9 | 13.4 | 9.5 | 12.7 | 11.7 | 10.6 | 14.5 | 13.2 | 12.5 | 11.7 | 8.6 | 5.6 | 6 | 14.4 | 13.9 | 12.5 | 11 | 13.8 | 12.2 | 10.4 |
| Apparent min temperature | 16.6 | 17.2 | 19.9 | 20.7 | 21 | 24.1 | 25.7 | 25.2 | 25.2 | 22.9 | 19.2 | 16.4 | 13 | 15.5 | 16.3 | 15.2 | 16.7 | 13.5 | 13.1 | 13.3 | 10.6 | 9.3 | 9.4 | 14.3 | 14.8 | 14 | 13.4 | 13.6 | 13.7 | 13 |
| 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) | 13.6 | 13.5 | 13.5 | 13.4 | 13.3 | 13.3 | 13.2 | 13.2 | 13.1 | 13 | 13 | 12.9 | 12.8 | 12.8 | 12.7 | 12.6 | 12.6 | 12.5 | 12.4 | 12.4 | 12.3 | 12.2 | 12.2 | 12.1 | 12 | 12 | 11.9 | 11.8 | 11.8 | 11.7 |
| Sunshine duration (h) | 8.9 | 9 | 12.2 | 12.2 | 12.1 | 12 | 9.1 | 9.1 | 11.9 | 4.2 | 9.9 | 1.6 | 10.9 | 4.6 | 11.6 | 1 | 4.3 | 9.4 | 2.1 | 0 | 9.4 | 11.1 | 11 | 5.5 | 9.7 | 8.5 | 2 | 1.5 | 10.5 | 1.1 |
| Precipitation (mm) | 0.5 | 0.6 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0 | 2.7 | 0.2 | 3.9 | 0 | 0 | 0 | 1 | 5.3 | 4.7 | 1.4 | 12 | 2.7 | 0.4 | 0 | 2.2 | 0.4 | 1.8 | 2 | 4.1 | 0.5 | 2.2 |
| Precipitation hours | 3 | 4 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 4 | 2 | 11 | 0 | 0 | 0 | 3 | 8 | 7 | 11 | 13 | 3 | 3 | 0 | 12 | 2 | 7 | 7 | 8 | 1 | 3 |
| Wind speed (m/s) | 6.7 | 13.9 | 5.1 | 12 | 15.1 | 8.7 | 7.4 | 7.7 | 9.7 | 16.5 | 22.8 | 19.7 | 13.8 | 16.8 | 13.5 | 18.1 | 21.3 | 27.2 | 38.5 | 37.2 | 17.9 | 19.6 | 24.1 | 36.8 | 23.7 | 27.7 | 37.2 | 30.8 | 18.2 | 24 |
In September 2023, the highest daytime temperature in Gloucester was 28.8°C.
While the minimum temperature at night dropped to 5.6°C.
The average nighttime and daytime temperatures during September in Gloucester are 12.7°C and 21.3°C respectively.
The precipitation sum in September is about 49 mm.