Average temperature in September is 12.8 °C
Average daytime temperature is 14.5 °C
Average night temperature is 11.3 °C
Absolute maximum temperature: 19.7 °C
Absolute minimum temperature: 6.1 °C
Number of sunny days: 16
Number of rainy days: 14
Number of snow days:
Precipitation sum: 54 mm
* Weather data for Montevideo Uruguay 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 | 17.4 | 15.1 | 12.8 | 12.8 | 10.2 | 12.2 | 14.9 | 14.3 | 14.4 | 17.6 | 19.4 | 14.2 | 11.9 | 13.5 | 19.7 | 18.1 | 14.7 | 12.7 | 14.2 | 14.4 | 16.3 | 14.7 | 14.4 | 13.9 | 12.1 | 12.1 | 12.7 | 17.5 | 15.3 | 12.7 |
| Apparent max temperature | 15.9 | 13.9 | 8.9 | 9.1 | 6.5 | 6.7 | 13.6 | 13.2 | 14.2 | 15.8 | 16.7 | 11.3 | 10.3 | 12.6 | 14.8 | 16.4 | 12.1 | 9.3 | 9.9 | 10.7 | 16.3 | 13.5 | 12.7 | 13.5 | 8.9 | 8.5 | 12.4 | 15.7 | 15.7 | 10.2 |
| Mean temperature | 13.2 | 13.4 | 12.1 | 11.8 | 9.4 | 9.6 | 14.1 | 12.4 | 12.4 | 14.2 | 15.1 | 12.8 | 11.4 | 10.7 | 15.2 | 16.5 | 14.1 | 12.4 | 13.1 | 14 | 15.2 | 12.3 | 12.9 | 12.9 | 11.4 | 11.9 | 11.9 | 12.8 | 13.8 | 11.7 |
| Apparent mean temperature | 6 | 7.5 | 6.6 | 3.3 | 3.4 | 2.5 | 7.2 | 6.4 | 8.4 | 7.9 | 11.4 | 7.7 | 7.7 | 3.6 | 7.5 | 9.6 | 7.3 | 5.3 | 8.5 | 9.3 | 10.6 | 5.2 | 6.9 | 7.2 | 6.4 | 6.3 | 8.4 | 5.4 | 9 | 7 |
| Minimum temperature | 10.1 | 12.4 | 11.4 | 10 | 8.7 | 7.2 | 13.1 | 10.8 | 10.6 | 11.7 | 12.9 | 12.1 | 10.7 | 6.1 | 12 | 14.4 | 13.7 | 11.8 | 12.4 | 13.8 | 14.5 | 10.2 | 11.3 | 11.4 | 10.4 | 11.7 | 11 | 8.3 | 12.3 | 11.2 |
| Apparent min temperature | 10.3 | 11.7 | 7.7 | 6.6 | 4.7 | 4.3 | 10.2 | 9.5 | 11 | 11.6 | 13.3 | 9.4 | 8.8 | 8.4 | 10.4 | 12.4 | 10.9 | 8 | 9 | 9.8 | 14.4 | 8.7 | 9.5 | 10.5 | 7.3 | 7.3 | 10 | 10.1 | 12.4 | 8.3 |
| 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) | 11.4 | 11.4 | 11.4 | 11.5 | 11.5 | 11.5 | 11.6 | 11.6 | 11.6 | 11.7 | 11.7 | 11.7 | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 12 | 12 | 12 | 12.1 | 12.1 | 12.1 | 12.2 | 12.2 | 12.3 | 12.3 | 12.3 | 12.4 | 12.4 |
| Sunshine duration (h) | 9.3 | 8.7 | 4.1 | 6.8 | 8.1 | 8 | 0 | 9.6 | 9.2 | 9.3 | 2.7 | 7 | 8.8 | 10.7 | 10.9 | 10.9 | 5.7 | 10.9 | 9.6 | 0.8 | 6.3 | 5.5 | 4.2 | 4.3 | 10.3 | 0 | 11.2 | 11 | 11.1 | 10.7 |
| Precipitation (mm) | 0 | 0 | 19.3 | 1.7 | 0 | 0 | 14.5 | 0 | 0 | 0.1 | 2.3 | 0 | 0 | 0 | 0 | 0 | 4.1 | 8.5 | 0 | 0.7 | 1 | 1 | 0.2 | 0 | 0 | 0.1 | 0.4 | 0 | 0.1 | 0 |
| Precipitation hours | 0 | 0 | 11 | 9 | 0 | 0 | 16 | 0 | 0 | 1 | 4 | 0 | 0 | 0 | 0 | 0 | 4 | 3 | 0 | 6 | 4 | 8 | 1 | 0 | 0 | 1 | 2 | 0 | 1 | 0 |
| Wind speed (m/s) | 25.5 | 33 | 38 | 38.9 | 38.2 | 41.4 | 37.8 | 31.4 | 13.4 | 23.7 | 35 | 35.9 | 17.9 | 17.7 | 36.9 | 35.5 | 44.1 | 45.3 | 39.5 | 39.6 | 33.8 | 32.6 | 31.7 | 28.7 | 33.3 | 32.1 | 18 | 23.5 | 30.3 | 25.6 |
In September 2023, the highest daytime temperature in Montevideo was 19.7°C.
While the minimum temperature at night dropped to 6.1°C.
The average nighttime and daytime temperatures during September in Montevideo are 11.3°C and 14.5°C respectively.
The precipitation sum in September is about 54 mm.