Average temperature in September is 29.1 °C
Average daytime temperature is 30 °C
Average night temperature is 27.7 °C
Absolute maximum temperature: 30.6 °C
Absolute minimum temperature: 25.3 °C
Number of sunny days: 6
Number of rainy days: 24
Number of snow days:
Precipitation sum: 59 mm
* Weather data for Isabel Segunda Puerto Rico 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 | 29.9 | 30.3 | 29.8 | 30.5 | 29.7 | 29.5 | 29.4 | 29.9 | 30.1 | 30.1 | 29.5 | 30 | 30.6 | 30.3 | 30.5 | 30 | 29.9 | 30 | 29.6 | 30.3 | 29.8 | 30.1 | 30 | 30.3 | 30.1 | 29.7 | 29.9 | 29.8 | 29.7 | 30 |
| Apparent max temperature | 35.2 | 35.2 | 34.2 | 35.4 | 35.1 | 34.6 | 34.4 | 34.3 | 36.8 | 36.7 | 34.3 | 33.2 | 34.6 | 35.8 | 36.2 | 35.7 | 35.6 | 35.3 | 35.5 | 35.6 | 35.3 | 34.3 | 33.6 | 34.4 | 34.9 | 34.5 | 34.1 | 35.5 | 35.7 | 34 |
| Mean temperature | 29.1 | 29.3 | 28.3 | 28.6 | 29.1 | 28.8 | 29 | 29.3 | 29.4 | 29.3 | 28.5 | 29 | 29.8 | 29.4 | 29.5 | 29.4 | 29.5 | 29.4 | 28.8 | 28.7 | 28.5 | 29.1 | 28.8 | 29.5 | 29.1 | 29.4 | 28.2 | 29.3 | 29.2 | 29.1 |
| Apparent mean temperature | 29.9 | 31.5 | 29.1 | 30.6 | 32.1 | 31.4 | 30.8 | 31 | 32.4 | 31.4 | 31.1 | 30 | 30.9 | 31.1 | 33.1 | 32.4 | 31.7 | 32.2 | 31 | 31.1 | 28.8 | 30.9 | 31.4 | 31.2 | 29.6 | 31.7 | 28.3 | 32.2 | 32.6 | 31.2 |
| Minimum temperature | 27.1 | 27.8 | 25.3 | 26.1 | 28.3 | 28 | 27.9 | 28.7 | 28.7 | 28.1 | 26.8 | 27.7 | 28.5 | 27.9 | 28.5 | 28.5 | 28.9 | 28.8 | 27.6 | 26.8 | 25.7 | 28.1 | 28 | 28 | 26.6 | 28.8 | 25.8 | 28.4 | 28.7 | 27.9 |
| Apparent min temperature | 33.2 | 33.4 | 32.4 | 32.8 | 33 | 32.7 | 32.4 | 32.2 | 33.8 | 34 | 32.9 | 31.9 | 32.6 | 33.5 | 34.2 | 33.8 | 33 | 33.2 | 33.2 | 33.3 | 32.3 | 32.2 | 32.2 | 32.8 | 32.7 | 32.7 | 31.6 | 33.2 | 33.7 | 32.5 |
| 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) | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12 | 12 | 12 | 12 |
| Sunshine duration (h) | 11.4 | 11.3 | 11.4 | 11.4 | 11.5 | 11.4 | 11.3 | 11.4 | 11.4 | 11.4 | 11.4 | 11.2 | 11.1 | 11.2 | 11.4 | 11.2 | 11.3 | 11.4 | 11.3 | 11.3 | 10.3 | 11.1 | 10.6 | 11.3 | 10.9 | 11.3 | 10.3 | 11.2 | 11.2 | 10.9 |
| Precipitation (mm) | 0.9 | 0.2 | 6.2 | 2.6 | 0 | 0.2 | 1.2 | 2.5 | 0.2 | 0.8 | 5 | 0.6 | 0.2 | 4.5 | 0 | 0 | 0 | 0 | 1.8 | 0.6 | 7.7 | 1.3 | 2.8 | 2.3 | 1.6 | 0.1 | 11.9 | 0 | 0.7 | 3.2 |
| Precipitation hours | 3 | 2 | 15 | 7 | 0 | 2 | 3 | 4 | 1 | 4 | 7 | 6 | 2 | 16 | 0 | 0 | 0 | 0 | 5 | 4 | 17 | 5 | 11 | 6 | 4 | 1 | 13 | 0 | 3 | 15 |
| Wind speed (m/s) | 20.4 | 20.1 | 22.6 | 20.5 | 17.5 | 19.8 | 21.5 | 25.8 | 23.3 | 21.2 | 27.9 | 33.8 | 27.2 | 23.4 | 16.6 | 20.5 | 22.9 | 18.7 | 17.1 | 19.2 | 21.9 | 23.8 | 26.4 | 25.9 | 25.1 | 26.2 | 27.9 | 20 | 22.3 | 28.2 |
In September 2023, the highest daytime temperature in Isabel Segunda was 30.6°C.
While the minimum temperature at night dropped to 25.3°C.
The average nighttime and daytime temperatures during September in Isabel Segunda are 27.7°C and 30°C respectively.
The precipitation sum in September is about 59 mm.