Last updated: August 27, 2025
In December, the average temperature in Mainstone, United Kingdom hovers around 6°C (42°F). Expect a chilly minimum of -8°C (17°F), while the maximum can reach up to 13°C (56°F). With an average humidity of 89% and 93 mm (3.7 in) of precipitation spread over 17 days, prepare for a moist and brisk atmosphere!
In December in Mainstone, the average temperature is 6°C (42°F), with maximums reaching 13°C (56°F) and minimums dropping as low as -8°C (17°F). Be prepared for chilly weather and pack accordingly if you're planning to travel.
In Mainstone in December, the precipitation amount is 93 mm (3.7 in) spread over 17 days.
In Mainstone in December humidity is 89%. With an average temperature of 6°C (42°F), this humidity feels like a heavy blanket wrapping around you, making it challenging for traveling as you navigate the damp air that clings to your skin, leaving you longing for a warm, dry refuge.
In Mainstone 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 Mainstone.
UV Risk Categories
Weather in Mainstone varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Mainstone, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 58 mm (2.3 inches) | 89% | low |
| February Weather | 5°C (41°F) | 78 mm (3.1 inches) | 88% | low |
| March Weather | 6°C (43°F) | 82 mm (3.2 inches) | 86% | moderate |
| April Weather | 8°C (47°F) | 52 mm (2.1 inches) | 84% | high |
| May Weather | 11°C (52°F) | 71 mm (2.8 inches) | 79% | high |
| June Weather | 14°C (58°F) | 85 mm (3.4 inches) | 81% | very high |
| July Weather | 16°C (61°F) | 61 mm (2.4 inches) | 78% | very high |
| August Weather | 15°C (60°F) | 72 mm (2.8 inches) | 79% | high |
| September Weather | 13°C (56°F) | 60 mm (2.4 inches) | 85% | high |
| October Weather | 10°C (51°F) | 90 mm (3.6 inches) | 90% | moderate |
| November Weather | 7°C (45°F) | 77 mm (3.0 inches) | 91% | low |
| December Weather | 6°C (42°F) | 93 mm (3.7 inches) | 89% | low |