Last updated: August 27, 2025
In December, the average temperature in St Mary Bourne, United Kingdom hovers around 6°C (44°F). Expect chilly days, with minimums dipping to -3°C (27°F) and maximums reaching 14°C (58°F). Rainfall is substantial, with an average precipitation amount of 89 mm (3.5 in) spread over 14 days, while the air remains humid with an average humidity level of 92%.
In December in St Mary Bourne, the average temperature is 6°C (44°F). The maximum can reach 14°C (58°F), while the minimum can drop as low as -3°C (27°F). Be prepared for a range of temperatures and pack accordingly for your travels.
In St Mary Bourne in December, the precipitation amount is 89 mm (3.5 in) over a span of 14 days.
In St Mary Bourne in December, humidity is 92%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that clings to your skin, making outdoor explorations uncomfortable and leaving you longing for warmer, drier conditions.
In St Mary Bourne in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in St Mary Bourne.
UV Risk Categories
Weather in St Mary Bourne varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in St Mary Bourne, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 51 mm (2.0 inches) | 91% | low |
| February Weather | 6°C (43°F) | 58 mm (2.3 inches) | 89% | low |
| March Weather | 7°C (45°F) | 67 mm (2.6 inches) | 86% | moderate |
| April Weather | 9°C (49°F) | 40 mm (1.6 inches) | 85% | high |
| May Weather | 12°C (55°F) | 71 mm (2.8 inches) | 79% | high |
| June Weather | 16°C (61°F) | 79 mm (3.1 inches) | 80% | very high |
| July Weather | 18°C (65°F) | 63 mm (2.5 inches) | 71% | very high |
| August Weather | 17°C (63°F) | 73 mm (2.9 inches) | 76% | high |
| September Weather | 15°C (59°F) | 47 mm (1.9 inches) | 82% | high |
| October Weather | 11°C (53°F) | 104 mm (4.1 inches) | 90% | moderate |
| November Weather | 8°C (46°F) | 60 mm (2.4 inches) | 92% | low |
| December Weather | 6°C (44°F) | 89 mm (3.5 inches) | 92% | low |