Average temperature in September is 27.9 °C
Average daytime temperature is 31.3 °C
Average night temperature is 25.7 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: 24.1 °C
Number of sunny days:
Number of rainy days: 30
Number of snow days:
Precipitation sum: 356 mm
* Weather data for Kolkata India 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 | 33.1 | 32.8 | 32.9 | 31.3 | 30.5 | 31.1 | 30.2 | 29.2 | 31.4 | 32.6 | 32.3 | 32 | 31.6 | 30.6 | 29.8 | 32.4 | 33.3 | 30.7 | 29.5 | 29.4 | 30.3 | 30.8 | 30.2 | 31 | 31.3 | 32.2 | 33 | 31.8 | 32.4 | 29.7 |
| Apparent max temperature | 42.2 | 40.4 | 40.9 | 36.9 | 36.6 | 37.1 | 35.9 | 34.7 | 37.5 | 40.5 | 40.6 | 40.2 | 37.4 | 34.4 | 35 | 39.7 | 41.4 | 37.7 | 34.4 | 34.8 | 35.2 | 36.1 | 35.5 | 37 | 39 | 41 | 40.9 | 39.1 | 40.1 | 34.8 |
| Mean temperature | 29.6 | 28.9 | 28.2 | 27.1 | 27.3 | 28 | 26.7 | 27.5 | 28.3 | 29.1 | 29 | 28.2 | 27.9 | 27.5 | 27.3 | 28.4 | 29.2 | 27.4 | 27.1 | 27.2 | 27.6 | 27.6 | 28 | 27.1 | 27.3 | 27.9 | 28.2 | 28.6 | 28.3 | 26.4 |
| Apparent mean temperature | 34.3 | 33.7 | 31.5 | 30 | 30.1 | 30.1 | 30.3 | 30.2 | 31.9 | 33 | 32.5 | 31.2 | 29.7 | 29.5 | 30.1 | 31.5 | 32.9 | 30.6 | 30 | 29.9 | 29.7 | 30.5 | 29 | 30.6 | 30.9 | 28.8 | 28.6 | 30.7 | 31 | 29.6 |
| Minimum temperature | 27.2 | 26.8 | 26 | 25.1 | 25.6 | 26 | 25.2 | 25.4 | 25.8 | 26.4 | 26.2 | 26.2 | 26 | 25.8 | 25.4 | 25.6 | 26.2 | 25.5 | 25.7 | 25.7 | 25.7 | 26 | 25.4 | 24.9 | 25.4 | 24.4 | 24.1 | 25.4 | 25.4 | 25.1 |
| Apparent min temperature | 37.1 | 36.3 | 34.9 | 32.8 | 33.1 | 33.4 | 32.1 | 32.6 | 34.5 | 35.7 | 35.7 | 34.9 | 32.6 | 32 | 32.5 | 34.9 | 36.1 | 33.6 | 32.2 | 32 | 32.2 | 32.4 | 32.9 | 32.8 | 33.4 | 34.5 | 34.8 | 35.4 | 35 | 30.7 |
| 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) | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12 | 12 | 12 | 12 |
| Sunshine duration (h) | 10.3 | 5.9 | 7.1 | 4.5 | 3.9 | 5 | 4.6 | 1.7 | 8.6 | 11.5 | 8.8 | 9.1 | 7.9 | 8.5 | 6.6 | 11 | 11.5 | 4.9 | 3.8 | 0.5 | 7 | 5.5 | 6.8 | 8 | 6.6 | 9.4 | 9.6 | 8.5 | 1.9 | 1.6 |
| Precipitation (mm) | 7.1 | 28.3 | 17.2 | 22.9 | 8.4 | 5.8 | 35.7 | 5.7 | 10.7 | 0.8 | 4.4 | 13.1 | 17.1 | 8.9 | 7.3 | 2.6 | 0.3 | 12.8 | 14.9 | 13.1 | 8.2 | 6.8 | 8.1 | 27.9 | 8 | 1.9 | 3.8 | 15.1 | 18.4 | 20.7 |
| Precipitation hours | 12 | 17 | 11 | 16 | 14 | 10 | 23 | 13 | 8 | 5 | 6 | 13 | 19 | 17 | 12 | 7 | 3 | 13 | 16 | 15 | 10 | 14 | 8 | 15 | 12 | 6 | 3 | 8 | 14 | 17 |
| Wind speed (m/s) | 10.5 | 14.1 | 14.2 | 20.3 | 20.8 | 18.4 | 15.6 | 19.4 | 14.3 | 16.2 | 12.2 | 13.8 | 21 | 29 | 19.1 | 15.2 | 11 | 12.1 | 15.1 | 17.8 | 23.7 | 23.8 | 21.3 | 17.3 | 19.8 | 12.8 | 8.3 | 11.6 | 8.9 | 20.3 |
In September 2023, the highest daytime temperature in Kolkata was 33.3°C.
While the minimum temperature at night dropped to 24.1°C.
The average nighttime and daytime temperatures during September in Kolkata are 25.7°C and 31.3°C respectively.
The precipitation sum in September is about 356 mm.