Average temperature in December is 16.1 °C
Average daytime temperature is 18.1 °C
Average night temperature is 14.3 °C
Absolute maximum temperature: 23.1 °C
Absolute minimum temperature: 11.8 °C
Number of sunny days: 13
Number of rainy days: 18
Number of snow days:
Precipitation sum: 39 mm
* Weather data for Sliema Malta 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 | 23 | 23.1 | 18.8 | 17.7 | 18.2 | 17.3 | 17.4 | 17.9 | 17.1 | 18.7 | 18.6 | 20.7 | 21.3 | 19.3 | 16.8 | 16.2 | 17 | 16.7 | 16.7 | 15.7 | 16.6 | 18.1 | 17.9 | 17.7 | 17.6 | 17.6 | 17.2 | 17.3 | 17.1 | 18.1 | 19.2 |
| Apparent max temperature | 19.9 | 20.1 | 14 | 16.4 | 13.6 | 13.5 | 12.7 | 15.2 | 11.7 | 13.8 | 17.5 | 18.6 | 19.2 | 19 | 13.8 | 13.9 | 12.8 | 11.6 | 13.1 | 12.4 | 12.6 | 10.9 | 12.3 | 11.8 | 13.9 | 15.1 | 15.9 | 15.9 | 15.9 | 18.1 | 18.1 |
| Mean temperature | 20.5 | 20.3 | 17.3 | 15.6 | 16.3 | 16 | 15.6 | 15.2 | 15.1 | 16 | 17.1 | 18.1 | 18.4 | 16.4 | 14.3 | 13.8 | 15.2 | 15.1 | 15.2 | 14.3 | 15.1 | 16.4 | 16.5 | 16.4 | 15.9 | 15.4 | 14.9 | 15.4 | 15.6 | 16 | 16.1 |
| Apparent mean temperature | 17.1 | 13.6 | 12.2 | 11.4 | 11.7 | 11 | 10.6 | 9.7 | 9.5 | 10.6 | 10.8 | 15.1 | 14.8 | 11.6 | 9.3 | 8.7 | 8.1 | 9 | 10.6 | 9.6 | 9.5 | 8.4 | 10.2 | 10.4 | 11.3 | 12 | 11.1 | 12.8 | 13.3 | 13.6 | 12.2 |
| Minimum temperature | 19 | 17.4 | 15.7 | 13.7 | 14.1 | 14.6 | 14.2 | 12.2 | 13.3 | 12.5 | 15.9 | 16 | 15.6 | 13.3 | 12.2 | 11.8 | 13.4 | 13.9 | 13.5 | 13.2 | 13.8 | 14.8 | 15.7 | 15.8 | 14.4 | 14.2 | 13 | 13.7 | 13.9 | 14.2 | 13.3 |
| Apparent min temperature | 18.5 | 17.4 | 13.1 | 13.8 | 12.5 | 12.4 | 11.4 | 12.6 | 10.7 | 12.2 | 14.1 | 16.5 | 17.3 | 14.5 | 11.4 | 11 | 10 | 10.5 | 11.5 | 11.2 | 11.1 | 10 | 11.3 | 11 | 12.3 | 13.1 | 13.4 | 14.4 | 14.9 | 16 | 15.2 |
| 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) | 9.9 | 9.9 | 9.9 | 9.9 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.8 | 9.8 |
| Sunshine duration (h) | 8.7 | 8.2 | 7.1 | 7.7 | 3 | 2.9 | 8.5 | 7.4 | 8 | 7.4 | 8.6 | 8.5 | 8.5 | 8.5 | 8.3 | 8.4 | 7.1 | 2.9 | 4.1 | 7.5 | 5.2 | 6.5 | 8.3 | 7.4 | 8.4 | 8.3 | 8.1 | 8 | 0.6 | 6.4 | 6.6 |
| Precipitation (mm) | 0 | 0 | 0 | 0.1 | 3.2 | 1.6 | 1.2 | 4.3 | 5.4 | 0.3 | 0 | 0 | 0 | 0.4 | 1.4 | 1.8 | 4.7 | 10 | 0.8 | 2.1 | 0.5 | 0.3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.6 | 0.1 |
| Precipitation hours | 0 | 0 | 0 | 1 | 9 | 6 | 3 | 7 | 15 | 2 | 0 | 0 | 0 | 3 | 7 | 2 | 12 | 17 | 7 | 10 | 4 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 1 |
| Wind speed (m/s) | 32.4 | 30.2 | 33.8 | 24.2 | 35.8 | 30.4 | 33.7 | 22.9 | 47.9 | 41.6 | 39.5 | 26.5 | 32.1 | 30.7 | 28.4 | 25.9 | 50.4 | 37.9 | 27.7 | 27 | 33.2 | 56.6 | 42.3 | 43.1 | 33.6 | 21.7 | 18.1 | 13.7 | 14.6 | 9.7 | 13.8 |
In December 2023, the highest daytime temperature in Sliema was 23.1°C.
While the minimum temperature at night dropped to 11.8°C.
The average nighttime and daytime temperatures during December in Sliema are 14.3°C and 18.1°C respectively.
The precipitation sum in December is about 39 mm.