Average temperature in September is 27.6 °C
Average daytime temperature is 31.2 °C
Average night temperature is 25 °C
Absolute maximum temperature: 32.3 °C
Absolute minimum temperature: 24.1 °C
Number of sunny days: 4
Number of rainy days: 26
Number of snow days:
Precipitation sum: 45 mm
* Weather data for Rosalie Dominica 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 | 30.4 | 30.6 | 31.3 | 31 | 31.5 | 31.3 | 30.8 | 31.4 | 30.7 | 31.9 | 31.6 | 32.3 | 31.7 | 32.2 | 31.4 | 31.5 | 31.9 | 32.2 | 31.6 | 29.6 | 31 | 30.3 | 31.4 | 31.6 | 31.5 | 29.8 | 30.9 | 30.5 | 30.2 |
| Apparent max temperature | 36.4 | 35.3 | 35.1 | 36.8 | 36.4 | 36.8 | 37.7 | 37.6 | 36.8 | 36 | 37.7 | 37 | 37.5 | 37.3 | 38.7 | 38.2 | 37.2 | 38.6 | 38.4 | 37.7 | 35 | 36.5 | 35.4 | 36.8 | 37.3 | 37.9 | 34.9 | 36.8 | 37.3 | 37.7 |
| Mean temperature | 27.6 | 27 | 27.7 | 27.7 | 27.6 | 27.9 | 27.8 | 27.2 | 27.3 | 28.2 | 28.3 | 28.3 | 28.1 | 28.1 | 28.1 | 27.9 | 27.8 | 27.8 | 28.4 | 27.4 | 26.5 | 27.8 | 27.4 | 27.5 | 27.5 | 27.3 | 26.8 | 27.5 | 27.5 | 27.3 |
| Apparent mean temperature | 29.7 | 28.9 | 29.8 | 29.7 | 29.7 | 29.5 | 29.6 | 29.1 | 29.9 | 30.9 | 30.9 | 31 | 30.3 | 30.1 | 30.1 | 30 | 30.1 | 30.1 | 30.8 | 28.8 | 28.9 | 29.9 | 29.6 | 28.9 | 28.8 | 28.8 | 29.6 | 29.8 | 31.6 | 31 |
| Minimum temperature | 25 | 24.5 | 25.4 | 25.3 | 25 | 25.1 | 24.6 | 24.5 | 24.4 | 26 | 25.6 | 26.1 | 25.5 | 25.1 | 25.3 | 24.7 | 25.2 | 24.7 | 25.8 | 24.8 | 24.8 | 25.4 | 25.5 | 24.5 | 24.5 | 24.1 | 24.9 | 24.5 | 25.4 | 24.9 |
| Apparent min temperature | 32.3 | 31.4 | 31.9 | 32.2 | 32.1 | 32.4 | 32.8 | 32.4 | 32.8 | 33 | 33.3 | 32.8 | 32.7 | 33.1 | 33 | 33.3 | 32.9 | 33.3 | 33.6 | 32.1 | 31.5 | 32.4 | 32 | 32 | 32.2 | 32.5 | 32.1 | 33.5 | 33.4 | 33.6 |
| 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) | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12 | 12 | 12 |
| Sunshine duration (h) | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.6 | 11.6 | 10.9 | 11.6 | 11.6 | 11.6 | 11.6 | 11.5 | 10.9 | 11.5 | 11.5 | 11.5 | 11.5 | 9.9 | 9.1 | 11.4 | 10.8 | 10.9 | 10.6 | 10 | 4 | 11.3 | 11.3 | 10.7 |
| Precipitation (mm) | 1.8 | 1.8 | 0.1 | 0 | 0.7 | 0.3 | 1 | 2.1 | 5.7 | 0.7 | 1.2 | 0 | 0.6 | 0 | 0.4 | 0.2 | 3.1 | 0.3 | 0 | 2.9 | 4.2 | 0.7 | 4.8 | 0.4 | 2.4 | 1.4 | 1.9 | 2.9 | 1.3 | 2.3 |
| Precipitation hours | 8 | 11 | 1 | 0 | 7 | 3 | 4 | 10 | 13 | 6 | 5 | 0 | 4 | 0 | 4 | 2 | 7 | 3 | 0 | 8 | 11 | 7 | 10 | 4 | 15 | 5 | 10 | 8 | 8 | 10 |
| Wind speed (m/s) | 14.1 | 18.3 | 18 | 13.8 | 13 | 13.9 | 8.6 | 11.4 | 12.3 | 16.7 | 12.2 | 15.8 | 13.2 | 14.2 | 6.6 | 5.2 | 7.4 | 5.2 | 5 | 12.4 | 14.8 | 8.2 | 16.7 | 15.2 | 13.4 | 9.5 | 13.1 | 8.9 | 12.3 | 7.8 |
In September 2023, the highest daytime temperature in Rosalie was 32.3°C.
While the minimum temperature at night dropped to 24.1°C.
The average nighttime and daytime temperatures during September in Rosalie are 25°C and 31.2°C respectively.
The precipitation sum in September is about 45 mm.