Average temperature in September is 19.3 °C
Average daytime temperature is 24.7 °C
Average night temperature is 15 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: 11 °C
Number of sunny days: 14
Number of rainy days: 16
Number of snow days:
Precipitation sum: 73 mm
* Weather data for Alvaiázere Portugal 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 | 25.6 | 23.9 | 24.1 | 21.4 | 24.3 | 27.5 | 27.7 | 27.9 | 23.4 | 24.2 | 22.1 | 23.7 | 27.2 | 29.6 | 23.9 | 19.2 | 20 | 21.7 | 23.1 | 20.8 | 19.7 | 19.9 | 23 | 27.3 | 27.7 | 25.7 | 25.1 | 26.9 | 31.9 | 33.2 |
| Apparent max temperature | 25.1 | 23.4 | 22.8 | 19.4 | 23.8 | 27.1 | 27.9 | 27 | 23.9 | 24.4 | 23 | 24.1 | 28.6 | 30.3 | 26.3 | 19.4 | 18.8 | 21.7 | 24.2 | 19.8 | 18.7 | 18 | 23.9 | 27.4 | 29.6 | 26 | 24.8 | 27.9 | 33.5 | 32.7 |
| Mean temperature | 19.1 | 19.1 | 19.5 | 18.6 | 19.7 | 21.1 | 21.6 | 21.4 | 19.2 | 18.8 | 18.4 | 18.6 | 21.1 | 22.6 | 19.3 | 16.9 | 16.4 | 16.8 | 17.1 | 16.5 | 16.7 | 15.2 | 16.9 | 19 | 20.3 | 19.7 | 19.4 | 20.2 | 23.4 | 25.1 |
| Apparent mean temperature | 12.9 | 14.5 | 15.5 | 12.7 | 16.4 | 16.8 | 17.7 | 18.2 | 17.2 | 16 | 16.2 | 15.6 | 16.4 | 16.8 | 17.1 | 13.5 | 11.9 | 13.3 | 11.7 | 11.8 | 12.8 | 10.1 | 10.8 | 11.2 | 13.3 | 14.1 | 15.1 | 15.1 | 18 | 18.7 |
| Minimum temperature | 14.7 | 15.6 | 16.2 | 14.8 | 16.9 | 16.1 | 16.5 | 16.8 | 16.1 | 15.3 | 15.8 | 15.4 | 15.4 | 16.3 | 16.1 | 14.9 | 14.4 | 13.2 | 12.3 | 12.8 | 13.8 | 11 | 12 | 12.6 | 13.5 | 15.9 | 15.1 | 14.7 | 17.5 | 19.4 |
| Apparent min temperature | 17.8 | 18.6 | 18.6 | 16.3 | 19.5 | 21.4 | 22.2 | 21.8 | 19.7 | 19.9 | 19.3 | 18.7 | 22 | 23.3 | 20.3 | 16.4 | 14.8 | 16.8 | 16.7 | 15.9 | 15.7 | 14 | 16.6 | 18 | 20.2 | 18.9 | 19.1 | 20.5 | 24.7 | 24.8 |
| 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) | 13.1 | 13 | 13 | 12.9 | 12.9 | 12.9 | 12.8 | 12.8 | 12.7 | 12.7 | 12.7 | 12.6 | 12.6 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.2 | 12.2 | 12.1 | 12.1 | 12 | 12 | 12 | 11.9 | 11.9 | 11.8 |
| Sunshine duration (h) | 8.4 | 7.7 | 8.6 | 5 | 6.4 | 10.2 | 10.6 | 10.2 | 8.5 | 9.1 | 9.5 | 11.3 | 11.2 | 11.2 | 9.1 | 5.6 | 6.8 | 11 | 11.1 | 9.8 | 9.4 | 11 | 11 | 11 | 11 | 10 | 10.9 | 10.9 | 10.9 | 10.9 |
| Precipitation (mm) | 0 | 2.8 | 4.8 | 2 | 4.4 | 0 | 0.1 | 0.6 | 11.9 | 4.2 | 5.1 | 0 | 0 | 0.9 | 3.5 | 13.8 | 13 | 0.9 | 0 | 0.1 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation hours | 0 | 4 | 8 | 8 | 12 | 0 | 1 | 4 | 15 | 11 | 9 | 0 | 0 | 3 | 7 | 14 | 15 | 5 | 0 | 1 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wind speed (m/s) | 24.2 | 18.9 | 20.2 | 32.9 | 21.8 | 18.9 | 16.9 | 19.7 | 18.7 | 14.6 | 13.4 | 17.2 | 15.1 | 13 | 15.3 | 21.7 | 32.2 | 14.4 | 17.1 | 17.7 | 21.2 | 16.9 | 12.1 | 15.3 | 18.3 | 20.4 | 13.4 | 19.7 | 15.2 | 17.2 |
In September 2023, the highest daytime temperature in Alvaiázere was 33.2°C.
While the minimum temperature at night dropped to 11°C.
The average nighttime and daytime temperatures during September in Alvaiázere are 15°C and 24.7°C respectively.
The precipitation sum in September is about 73 mm.