Average temperature in September is 20.1 °C
Average daytime temperature is 26.4 °C
Average night temperature is 14.9 °C
Absolute maximum temperature: 31.2 °C
Absolute minimum temperature: 9.8 °C
Number of sunny days: 15
Number of rainy days: 15
Number of snow days:
Precipitation sum: 61 mm
* Weather data for Riverview United States 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 | 27.5 | 28.5 | 29.8 | 30.7 | 31.2 | 30.9 | 30.3 | 29.1 | 28 | 25.3 | 26.6 | 28.3 | 25.5 | 23.9 | 25.1 | 26 | 22.3 | 21.7 | 25.3 | 25.2 | 25.2 | 24.9 | 23.5 | 23.2 | 24.9 | 27 | 24.2 | 26.8 | 25.3 | 26.3 |
| Apparent max temperature | 29.3 | 31.3 | 33.1 | 33.6 | 34.9 | 34.1 | 33.1 | 32.1 | 29.7 | 28 | 28.5 | 29.9 | 27.6 | 26.2 | 26.7 | 28.1 | 23.4 | 20.3 | 26.1 | 25.2 | 25 | 24.3 | 21.5 | 23.6 | 25.6 | 29 | 24.7 | 27.9 | 25.3 | 26.8 |
| Mean temperature | 20.6 | 21.3 | 22.2 | 23.7 | 24.4 | 25.1 | 23.3 | 21.6 | 21 | 20.3 | 20.8 | 21.1 | 20.5 | 19.4 | 20 | 19.4 | 19.3 | 16.9 | 17.1 | 17.7 | 18.3 | 18.5 | 17.3 | 18.4 | 19 | 19.3 | 18.9 | 18.3 | 18.8 | 19.8 |
| Apparent mean temperature | 14.8 | 14.6 | 16.8 | 18.6 | 18.5 | 20.9 | 19.3 | 19.7 | 17.8 | 18.4 | 15.5 | 16.2 | 18.9 | 15.7 | 16.3 | 14.6 | 17.4 | 12.5 | 8.7 | 10.2 | 11.6 | 12.2 | 10.5 | 14.3 | 15.8 | 14.1 | 14.5 | 11.8 | 13.3 | 13.5 |
| Minimum temperature | 15.2 | 14.8 | 15.8 | 17.5 | 17.3 | 18.5 | 17.8 | 17.3 | 16.8 | 17.4 | 14.7 | 15.9 | 16.7 | 14.7 | 15.9 | 14.6 | 16.5 | 12.8 | 9.8 | 11.2 | 12.5 | 12.8 | 11.8 | 14.2 | 14.7 | 14.2 | 15 | 12.6 | 13.5 | 13.1 |
| Apparent min temperature | 21.1 | 22.1 | 24.1 | 25.7 | 27 | 28 | 25.8 | 24.4 | 23 | 22.3 | 22.7 | 22.7 | 22.7 | 20.8 | 21.2 | 20.7 | 20.5 | 16.1 | 16.8 | 17.2 | 17.8 | 18.1 | 16.2 | 18.2 | 20.1 | 20 | 18.6 | 18.4 | 19.1 | 20.4 |
| 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 | 12.9 | 12.9 | 12.8 | 12.8 | 12.8 | 12.7 | 12.7 | 12.7 | 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) | 12.1 | 11.7 | 12.1 | 12 | 12 | 11.5 | 11.7 | 11.1 | 11 | 10.8 | 11.3 | 10.7 | 9 | 9 | 11.2 | 10.6 | 10 | 11.2 | 11.3 | 9.9 | 8.2 | 11.2 | 11 | 10.3 | 11.1 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0.1 | 0 | 5.8 | 13.6 | 7.4 | 6.9 | 0.7 | 3.2 | 1.2 | 2.3 | 1.8 | 8.2 | 8.7 | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.3 | 0.2 | 0 | 0 | 0 |
| Precipitation hours | 0 | 0 | 0 | 0 | 1 | 0 | 5 | 6 | 7 | 9 | 6 | 4 | 8 | 7 | 7 | 8 | 12 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 0 |
| Wind speed (m/s) | 15.1 | 10.6 | 9.8 | 7 | 9.3 | 9.2 | 7.9 | 10.5 | 12.2 | 12.3 | 10.6 | 14.2 | 10.8 | 12.7 | 13.6 | 9.7 | 15.1 | 15.3 | 11.2 | 15.1 | 9.9 | 14.7 | 18.3 | 14.2 | 11.2 | 14.2 | 18.7 | 12.4 | 11.8 | 10.1 |
In September 2023, the highest daytime temperature in Riverview was 31.2°C.
While the minimum temperature at night dropped to 9.8°C.
The average nighttime and daytime temperatures during September in Riverview are 14.9°C and 26.4°C respectively.
The precipitation sum in September is about 61 mm.