Average temperature in September is 20.9 °C
Average daytime temperature is 24.5 °C
Average night temperature is 18 °C
Absolute maximum temperature: 27.3 °C
Absolute minimum temperature: 16.1 °C
Number of sunny days:
Number of rainy days: 30
Number of snow days:
Precipitation sum: 182 mm
* Weather data for Shillong 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 | 25.4 | 24.4 | 25.3 | 27.3 | 26.2 | 25.6 | 25 | 23.6 | 24 | 24.7 | 24.2 | 23.8 | 24.8 | 24.7 | 25.7 | 24.5 | 25.3 | 24.5 | 23.7 | 23.1 | 22.9 | 23.3 | 22.8 | 24.5 | 24 | 23.5 | 24 | 25.5 | 25.7 | 23.8 |
| Apparent max temperature | 29.6 | 29 | 29.1 | 30.7 | 29.2 | 28.7 | 28.5 | 26 | 28.1 | 29.3 | 27.8 | 27.6 | 29.5 | 28.4 | 30.3 | 28.7 | 29.7 | 28.1 | 27.1 | 25.6 | 24.6 | 25.9 | 24.3 | 29 | 27.6 | 27.6 | 27.9 | 29.5 | 29.7 | 26.5 |
| Mean temperature | 21.3 | 21.8 | 21.5 | 22.8 | 22.5 | 21.9 | 21.2 | 20.5 | 20.9 | 21.1 | 21.2 | 20.3 | 20.9 | 21 | 21 | 21.5 | 21.2 | 21.3 | 20 | 20.1 | 20 | 19.8 | 20 | 20.3 | 19.8 | 19.7 | 20.1 | 21.3 | 21.7 | 20.3 |
| Apparent mean temperature | 18.3 | 20.7 | 19.5 | 18.9 | 19.5 | 20.1 | 20.3 | 20.1 | 21.3 | 21.1 | 21 | 19.6 | 20 | 19.8 | 18.7 | 20.3 | 19.8 | 20.4 | 20.3 | 21 | 20.3 | 19.4 | 18.6 | 19.2 | 17.5 | 17.4 | 18.6 | 19.5 | 20.5 | 20 |
| Minimum temperature | 17 | 18.7 | 18.2 | 17.9 | 18.2 | 18.9 | 18.6 | 18.5 | 19.1 | 18.9 | 18.8 | 17.4 | 18.3 | 18.3 | 17 | 18 | 17.8 | 18.3 | 18.3 | 18.7 | 18.4 | 17.7 | 17.5 | 17.9 | 16.3 | 16.1 | 16.9 | 18.2 | 19 | 17.7 |
| Apparent min temperature | 24.2 | 24.8 | 23.8 | 25 | 24.6 | 23.9 | 23.6 | 22.6 | 23.9 | 24.1 | 24.1 | 23 | 23.4 | 23.2 | 23.8 | 24.4 | 24.2 | 23.5 | 22.2 | 22.4 | 22 | 21.6 | 21.5 | 22.3 | 21.9 | 22.2 | 22.7 | 23.8 | 24 | 22.3 |
| 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) | 12.7 | 12.6 | 12.6 | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12 | 12 | 12 | 12 | 11.9 |
| Sunshine duration (h) | 11.8 | 11.8 | 11.1 | 11.8 | 11.8 | 11.7 | 10.9 | 2.8 | 8.2 | 10.3 | 11 | 3.9 | 4.9 | 11.4 | 10.6 | 11.6 | 11.5 | 10.6 | 5.5 | 6.5 | 5.7 | 5.6 | 7.7 | 10.1 | 10.8 | 10.3 | 9.6 | 10.9 | 11 | 6.2 |
| Precipitation (mm) | 1.8 | 4 | 1.8 | 0.5 | 0.9 | 3.7 | 6.9 | 2.4 | 20 | 8.3 | 10.6 | 12.7 | 1.5 | 3.4 | 0.7 | 1.9 | 1.7 | 4.9 | 11.9 | 18 | 12.8 | 2.9 | 1 | 1.6 | 1.3 | 7.3 | 7.3 | 1.9 | 6.4 | 21.4 |
| Precipitation hours | 7 | 9 | 7 | 4 | 5 | 6 | 14 | 5 | 16 | 13 | 16 | 11 | 7 | 3 | 5 | 8 | 6 | 8 | 20 | 24 | 19 | 14 | 5 | 6 | 6 | 8 | 8 | 2 | 6 | 11 |
| Wind speed (m/s) | 7.5 | 11.3 | 12.7 | 13.7 | 12 | 15.1 | 13 | 10 | 7.9 | 7.2 | 8.7 | 7.9 | 9.8 | 10.9 | 7.6 | 7.2 | 7.8 | 13.7 | 10.2 | 10.4 | 11.7 | 12.8 | 12.1 | 9.2 | 9.8 | 7 | 7.7 | 9.1 | 13.7 | 14 |
In September 2023, the highest daytime temperature in Shillong was 27.3°C.
While the minimum temperature at night dropped to 16.1°C.
The average nighttime and daytime temperatures during September in Shillong are 18°C and 24.5°C respectively.
The precipitation sum in September is about 182 mm.