Average temperature in December is 11.1 °C
Average daytime temperature is 12 °C
Average night temperature is 10.2 °C
Absolute maximum temperature: 14.1 °C
Absolute minimum temperature: 5.1 °C
Number of sunny days: 5
Number of rainy days: 26
Number of snow days:
Precipitation sum: 152 mm
* Weather data for Saint Andrew Guernsey 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 | 8.4 | 8.9 | 11.6 | 11.9 | 9.8 | 9.6 | 13.2 | 12.7 | 14.1 | 13.8 | 12.9 | 12.6 | 11.1 | 12.1 | 12.5 | 11.9 | 11.4 | 12.5 | 13.1 | 12.1 | 12.3 | 12.1 | 12.2 | 12.7 | 12.8 | 12.2 | 13 | 12.3 | 12.1 | 12.5 | 11 |
| Apparent max temperature | 2.3 | 3.3 | 5.5 | 8.6 | 5.9 | 7 | 8.9 | 7.8 | 7.8 | 7.4 | 9.9 | 8.6 | 6.7 | 8.4 | 9.6 | 8.8 | 6.7 | 7.1 | 7 | 5.6 | 6.1 | 5.4 | 5.5 | 6.4 | 6.7 | 10 | 7 | 5.2 | 6.2 | 6.5 | 1.3 |
| Mean temperature | 7 | 7 | 10.4 | 10.7 | 9.3 | 9.3 | 10.9 | 12.1 | 12.6 | 12.8 | 12.5 | 11.6 | 10.1 | 11 | 11.6 | 11 | 9.9 | 11.5 | 12 | 11.4 | 12.1 | 11.6 | 11.8 | 12.5 | 12.5 | 11.5 | 12.3 | 11.9 | 11.8 | 11.7 | 9.9 |
| Apparent mean temperature | -1.4 | 0.3 | 1.8 | -0.4 | -0.2 | 1.6 | 0.7 | 3.6 | 2.4 | 4.2 | 5.8 | 2.9 | 1.9 | 2.9 | 6 | 5.1 | 4.4 | 5 | 3 | 3.4 | 2.9 | 2.1 | 3.9 | 3.9 | 5.1 | 7 | 3.9 | 2.7 | 2.5 | 1.5 | -2.1 |
| Minimum temperature | 5.1 | 5.7 | 9.1 | 9 | 8.9 | 9.1 | 9.1 | 11.2 | 11.5 | 11.4 | 12.1 | 10.4 | 8.8 | 8.8 | 11.1 | 9.8 | 9.1 | 10.7 | 10.2 | 10.2 | 11.8 | 11 | 11.4 | 12 | 12.2 | 11 | 11.8 | 11.5 | 11.3 | 11 | 9 |
| Apparent min temperature | 0.8 | 2.1 | 3.5 | 3.7 | 2.5 | 4.5 | 3.8 | 5.7 | 5.2 | 5.8 | 8.3 | 5.2 | 3.9 | 6.7 | 7.8 | 7.1 | 5.3 | 6.1 | 5.6 | 4.2 | 4.7 | 4 | 4.8 | 5.4 | 5.8 | 8 | 5.2 | 3.7 | 4.6 | 4.9 | -0.4 |
| 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) | 8.5 | 8.5 | 8.4 | 8.4 | 8.4 | 8.4 | 8.3 | 8.3 | 8.3 | 8.3 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 |
| Sunshine duration (h) | 5.6 | 7 | 4.5 | 3.2 | 6.9 | 3.1 | 0 | 7 | 3 | 2.1 | 6.9 | 4.7 | 5.1 | 1.7 | 3.5 | 2.5 | 6.6 | 0.5 | 0 | 3.1 | 5.9 | 5.6 | 3.1 | 1.3 | 0 | 4.9 | 0 | 5.7 | 6 | 3.2 | 5.2 |
| Precipitation (mm) | 3.2 | 2.9 | 14.7 | 12.9 | 8.6 | 2.8 | 6.8 | 2.6 | 10.4 | 1.8 | 0.2 | 32.2 | 1.5 | 1.7 | 0 | 0 | 0 | 0.5 | 5.2 | 0.2 | 0 | 0 | 0.2 | 0.9 | 2 | 2.1 | 4.7 | 2.8 | 5.5 | 4.3 | 21.3 |
| Precipitation hours | 13 | 14 | 20 | 18 | 13 | 8 | 19 | 12 | 16 | 6 | 2 | 20 | 9 | 10 | 0 | 0 | 0 | 5 | 9 | 2 | 0 | 0 | 2 | 8 | 12 | 7 | 6 | 12 | 17 | 7 | 21 |
| Wind speed (m/s) | 39 | 47 | 56.9 | 60.6 | 58.7 | 47.4 | 55.8 | 47.6 | 63 | 56.1 | 47.5 | 52.1 | 47.4 | 31.1 | 26.5 | 27 | 30 | 38.5 | 50.1 | 52.7 | 60.3 | 57.2 | 49.2 | 57.3 | 50.7 | 34 | 55.7 | 59.2 | 59.1 | 68.7 | 69.2 |
In December 2023, the highest daytime temperature in Saint Andrew was 14.1°C.
While the minimum temperature at night dropped to 5.1°C.
The average nighttime and daytime temperatures during December in Saint Andrew are 10.2°C and 12°C respectively.
The precipitation sum in December is about 152 mm.