Average temperature in September is 23.6 °C
Average daytime temperature is 30.5 °C
Average night temperature is 17.1 °C
Absolute maximum temperature: 36.6 °C
Absolute minimum temperature: 12.9 °C
Number of sunny days: 30
Number of rainy days:
Number of snow days:
Precipitation sum: 0 mm
* Weather data for Karaj Iran is based on climate observations for 2023 year
| Settembre (°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 | 32.7 | 34.6 | 34.9 | 35.4 | 36.6 | 35.6 | 35.3 | 35 | 33.7 | 32.6 | 31.1 | 32.5 | 32.5 | 32.8 | 29.2 | 29 | 29.5 | 29.1 | 27.9 | 27.6 | 28.2 | 28.7 | 28.5 | 27.4 | 27.6 | 26.2 | 25.6 | 25.5 | 24.7 | 25.3 |
| Apparent max temperature | 31.9 | 33.5 | 32.8 | 32.2 | 34.2 | 34.4 | 33.2 | 33.8 | 31.4 | 28.6 | 29.3 | 31.8 | 28.9 | 28.9 | 28.5 | 28.5 | 27.7 | 27.4 | 27.1 | 26 | 25.8 | 26.4 | 25.6 | 24.7 | 24.2 | 22.9 | 23.9 | 23.6 | 22.2 | 21.9 |
| Mean temperature | 26.1 | 27.3 | 28.5 | 29.2 | 29.3 | 28.8 | 28.4 | 26.9 | 26.5 | 25.3 | 23.6 | 25.2 | 25.1 | 23.2 | 21.1 | 21.6 | 22.9 | 21.8 | 19.9 | 20.8 | 22 | 22.3 | 22.2 | 21.6 | 21.4 | 20.4 | 19 | 19.9 | 19.2 | 19.7 |
| Apparent mean temperature | 17.5 | 17.6 | 19.1 | 20.4 | 18.7 | 19.6 | 18.8 | 18.3 | 15.2 | 16.6 | 15.7 | 14.9 | 14.3 | 13.9 | 13 | 13.6 | 15.1 | 13.6 | 12.5 | 12.1 | 14 | 13.6 | 13.8 | 13.9 | 13.5 | 11.7 | 10.8 | 13.6 | 12.1 | 11 |
| Minimum temperature | 18.9 | 19.5 | 20.7 | 23.5 | 22.1 | 21.1 | 20.4 | 19.7 | 18.2 | 17.9 | 16.9 | 16.9 | 17.5 | 15.7 | 14.9 | 15.1 | 16.9 | 15.2 | 14 | 13.9 | 16.2 | 15.7 | 16.4 | 17 | 15.8 | 14.2 | 12.9 | 15.8 | 15.2 | 13.9 |
| Apparent min temperature | 24.8 | 25.6 | 26.1 | 26 | 26.6 | 26.5 | 26 | 25.1 | 23.4 | 22.5 | 21.9 | 23 | 22 | 20.7 | 19.3 | 19.9 | 21.1 | 20.1 | 18.4 | 19 | 19.7 | 19.7 | 19.3 | 18.6 | 18 | 17 | 16.7 | 17.7 | 16.7 | 16.2 |
| Settembre | 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) | 12.9 | 12.9 | 12.9 | 12.8 | 12.8 | 12.8 | 12.7 | 12.7 | 12.6 | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12 | 12 | 11.9 | 11.9 | 11.9 |
| Sunshine duration (h) | 11.5 | 11.5 | 11.5 | 11.4 | 11.4 | 11.1 | 11.3 | 11.2 | 11.2 | 11.1 | 11.1 | 11.1 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation hours | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wind speed (m/s) | 10.2 | 7.7 | 13.9 | 17.9 | 12.8 | 14.3 | 13.7 | 11.1 | 10.7 | 25.6 | 14.1 | 10.5 | 18.4 | 21.7 | 14.7 | 13 | 11.6 | 12.6 | 13.7 | 12.4 | 12.6 | 11.2 | 11.7 | 14.5 | 13.7 | 14.5 | 9.3 | 11.8 | 10.4 | 13.7 |
In September 2023, the highest daytime temperature in Karaj was 36.6°C.
While the minimum temperature at night dropped to 12.9°C.
The average nighttime and daytime temperatures during September in Karaj are 17.1°C and 30.5°C respectively.
The precipitation sum in September is about 0 mm.