Average temperature in September is 24.7 °C
Average daytime temperature is 29.9 °C
Average night temperature is 21.4 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: 20.5 °C
Number of sunny days:
Number of rainy days: 30
Number of snow days:
Precipitation sum: 216 mm
* Weather data for San Salvador El Salvador 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 | 33.2 | 30.4 | 29.5 | 29.2 | 29.2 | 29.9 | 29.6 | 30.4 | 30 | 31.3 | 28.4 | 30.8 | 29.7 | 28.6 | 28 | 30.2 | 29.4 | 29.9 | 30.7 | 30 | 30.1 | 29.9 | 30.5 | 29.1 | 29.3 | 30.9 | 29.9 | 28.4 | 29.6 | 29.9 |
| Apparent max temperature | 38 | 35.5 | 34.7 | 34.6 | 34.9 | 35.2 | 34.9 | 35.5 | 34.4 | 36.8 | 33 | 35.1 | 35.3 | 34.2 | 34.6 | 34.9 | 34.1 | 34.3 | 34.2 | 34.4 | 34.3 | 34.3 | 35.5 | 33.9 | 34.1 | 35.2 | 35.4 | 33.4 | 35.1 | 35.9 |
| Mean temperature | 25.8 | 24.6 | 24.7 | 24 | 24 | 25.3 | 25.8 | 24.9 | 24.7 | 24.7 | 24.5 | 25.1 | 24.7 | 24.8 | 24.5 | 24.7 | 24.7 | 24.6 | 25.2 | 24.6 | 24.1 | 24.8 | 25.6 | 24.7 | 24 | 24.5 | 24.6 | 24.2 | 24.4 | 24.4 |
| Apparent mean temperature | 24.4 | 23.8 | 23.7 | 23.9 | 23.7 | 24 | 25.9 | 24.6 | 23.9 | 23 | 24.3 | 24.3 | 24.2 | 25.6 | 25.5 | 23.2 | 24.7 | 23.7 | 23.6 | 24 | 23.1 | 23.2 | 24.5 | 24.9 | 23 | 23.3 | 24.7 | 24.8 | 25.3 | 24.8 |
| Minimum temperature | 21.9 | 21.2 | 20.8 | 21 | 20.8 | 21 | 22.8 | 21.6 | 21.1 | 20.6 | 21.3 | 21.9 | 21.3 | 22 | 22 | 20.7 | 21.6 | 21.2 | 21.5 | 21.5 | 20.5 | 20.9 | 22.2 | 22.1 | 20.5 | 20.9 | 21.7 | 21.6 | 21.5 | 21.7 |
| Apparent min temperature | 29.9 | 28.4 | 28.8 | 27.8 | 27.9 | 29.9 | 30.1 | 28.9 | 28.6 | 28.5 | 28.4 | 28.6 | 29 | 29.2 | 28.9 | 28.6 | 28.8 | 28.4 | 28.5 | 28.3 | 28.1 | 28.4 | 29.3 | 28.8 | 27.5 | 28.2 | 28.7 | 28.5 | 28.8 | 28.8 |
| 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) | 12.4 | 12.4 | 12.4 | 12.3 | 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 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12 | 12 | 12 |
| Sunshine duration (h) | 10.5 | 10.9 | 11.7 | 10.8 | 10.8 | 11.6 | 11.3 | 11.1 | 11.2 | 11.3 | 10.8 | 11.4 | 11.1 | 9.7 | 9.9 | 11.2 | 9.4 | 9.4 | 11.5 | 10.9 | 8.9 | 10.9 | 11.4 | 10.9 | 9.1 | 10.9 | 10.3 | 10.9 | 9 | 9.4 |
| Precipitation (mm) | 17.4 | 11.9 | 6.7 | 12.4 | 2.7 | 1.1 | 2.2 | 13 | 11.4 | 8.3 | 5.4 | 0.5 | 7.4 | 9.6 | 9.2 | 3.4 | 2.2 | 14.7 | 0.1 | 6.7 | 13.3 | 2.5 | 1.8 | 6.1 | 11.6 | 3 | 8.5 | 12.3 | 2.9 | 8.1 |
| Precipitation hours | 6 | 7 | 8 | 11 | 6 | 5 | 6 | 10 | 11 | 6 | 10 | 2 | 9 | 6 | 8 | 7 | 5 | 9 | 1 | 8 | 11 | 8 | 5 | 11 | 6 | 3 | 9 | 11 | 11 | 9 |
| Wind speed (m/s) | 11.5 | 11.7 | 10.4 | 9.4 | 10.4 | 10.2 | 8.3 | 10 | 9.8 | 9.4 | 7.3 | 10.6 | 8.5 | 9.2 | 8.2 | 10 | 8.2 | 11.8 | 9.5 | 10 | 10.1 | 9.9 | 9.4 | 9.4 | 10.5 | 11.4 | 9.5 | 9.3 | 8.6 | 9.4 |
In September 2023, the highest daytime temperature in San Salvador was 33.2°C.
While the minimum temperature at night dropped to 20.5°C.
The average nighttime and daytime temperatures during September in San Salvador are 21.4°C and 29.9°C respectively.
The precipitation sum in September is about 216 mm.