Average temperature in December is 12.4 °C
Average daytime temperature is 17.1 °C
Average night temperature is 8.1 °C
Absolute maximum temperature: 21.1 °C
Absolute minimum temperature: 4.9 °C
Number of sunny days: 19
Number of rainy days: 12
Number of snow days:
Precipitation sum: 36 mm
* Weather data for Shillong India is based on climate observations for 2023 year
| December (°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 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 19.7 | 20.1 | 20.5 | 21.1 | 20.3 | 18.7 | 14.3 | 15.6 | 17.4 | 16.2 | 16.2 | 16.1 | 15.8 | 15.2 | 14.8 | 15.9 | 16.7 | 17 | 15.9 | 17.2 | 17.6 | 17.2 | 16.2 | 16.6 | 16.5 | 17 | 17.2 | 16.5 | 17.4 | 17.6 | 16.9 |
| Apparent max temperature | 19.4 | 20.5 | 20.4 | 21.1 | 19 | 18.2 | 14.5 | 16.6 | 17.3 | 15.6 | 14.9 | 14.6 | 14.5 | 13.7 | 13.6 | 14.8 | 16.2 | 16.9 | 14.6 | 15.9 | 16.9 | 16.3 | 14.7 | 16.1 | 15.3 | 15.9 | 15.8 | 14.8 | 15.3 | 16.6 | 15.8 |
| Mean temperature | 15.2 | 15 | 14.2 | 15.2 | 15.1 | 15 | 13.3 | 13.5 | 12.9 | 12.3 | 11 | 10.6 | 10.4 | 10.8 | 11.1 | 12.1 | 11.1 | 10.4 | 11.2 | 11.2 | 12 | 12.2 | 12 | 12.2 | 12.3 | 11.5 | 11.6 | 12.2 | 13 | 12.4 | 11.4 |
| Apparent mean temperature | 9.8 | 8.2 | 6.4 | 6.7 | 10.1 | 9.7 | 12.4 | 9.8 | 8.4 | 7.4 | 5.8 | 4.2 | 2.7 | 2.4 | 4.8 | 6.5 | 3.9 | 3.5 | 2.8 | 3.1 | 5.7 | 6.2 | 6.7 | 7 | 7 | 6.2 | 5.5 | 5.9 | 7.7 | 5.5 | 4.8 |
| Minimum temperature | 11.3 | 10.1 | 9.2 | 9.3 | 10.7 | 10.4 | 12.3 | 10.3 | 9.2 | 8.5 | 7.9 | 6.3 | 5.4 | 4.9 | 6.4 | 8.1 | 5.6 | 5.4 | 5.6 | 6.2 | 7.8 | 8.2 | 9.1 | 8 | 8 | 8.2 | 7.6 | 7.8 | 8.9 | 7.5 | 6.3 |
| Apparent min temperature | 14.5 | 14.6 | 13.2 | 13.9 | 14.6 | 15.1 | 13.5 | 13.9 | 12.9 | 11.8 | 9.5 | 8.9 | 8.5 | 9.6 | 9.4 | 10.4 | 9.9 | 9.3 | 9.3 | 9.4 | 10.5 | 10.6 | 10.5 | 11.5 | 11.5 | 10 | 9.9 | 10.6 | 11.5 | 11.2 | 10.2 |
| December | 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 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 10.7 | 10.7 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 |
| Sunshine duration (h) | 9.7 | 9.5 | 9.7 | 9.6 | 4.9 | 4.6 | 0 | 3 | 8.6 | 9.5 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 5.1 | 9.4 | 8.8 | 9.7 | 9.7 | 8.7 | 9.7 | 9.7 | 9.7 |
| Precipitation (mm) | 0 | 0.3 | 0 | 0 | 0.2 | 4.3 | 20.4 | 4.8 | 1.7 | 1.3 | 0 | 0 | 0 | 0.9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.3 | 0.3 | 0 | 0 | 0 | 0 | 0.4 | 0.4 |
| Precipitation hours | 0 | 2 | 0 | 0 | 2 | 9 | 21 | 18 | 7 | 9 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 3 | 0 | 0 | 0 | 0 | 2 | 1 |
| Wind speed (m/s) | 9.2 | 6.6 | 8.3 | 9.7 | 10.1 | 5.4 | 5.4 | 6.4 | 5.4 | 7.6 | 11 | 10 | 11 | 7.2 | 10 | 8.1 | 5.6 | 5.9 | 8.4 | 8.1 | 6.7 | 8.6 | 9.1 | 8.7 | 7.6 | 8.5 | 8.8 | 8.4 | 9 | 7.3 | 6.6 |
In December 2023, the highest daytime temperature in Shillong was 21.1°C.
While the minimum temperature at night dropped to 4.9°C.
The average nighttime and daytime temperatures during December in Shillong are 8.1°C and 17.1°C respectively.
The precipitation sum in December is about 36 mm.