Last updated: August 27, 2025
In December, the average temperature in Marstow, United Kingdom hovers around 7°C (44°F), with a minimum dipping to -8°C (17°F) and a maximum reaching 14°C (57°F). Expect 93 mm (3.7 in) of precipitation spread over 15 days, contributing to a notably high average humidity of 89%. Prepare for a damp and cool month!
In December in Marstow, the average temperature is 7°C (44°F). The maximum can reach 14°C (57°F), while the minimum can drop as low as -8°C (17°F). Be prepared for chilly weather and dress in layers if you're planning to travel during this time.
In Marstow in December, the precipitation amount is 93 mm (3.7 in) over the course of 15 days.
In Marstow in December humidity is 89%. With an average temperature of 7°C (44°F), this humidity feels like a dense fog enveloping you, making every step sticky and cumbersome, and presenting a challenge for travelers who may find it hard to stay dry and comfortable while exploring.
In Marstow 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 Marstow.
UV Risk Categories
Weather in Marstow varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Marstow, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 54 mm (2.1 inches) | 88% | low |
| February Weather | 6°C (43°F) | 67 mm (2.6 inches) | 88% | low |
| March Weather | 7°C (45°F) | 74 mm (2.9 inches) | 86% | moderate |
| April Weather | 9°C (49°F) | 52 mm (2.0 inches) | 84% | moderate |
| May Weather | 12°C (54°F) | 73 mm (2.9 inches) | 80% | high |
| June Weather | 16°C (61°F) | 75 mm (3.0 inches) | 80% | very high |
| July Weather | 18°C (64°F) | 63 mm (2.5 inches) | 70% | very high |
| August Weather | 17°C (62°F) | 75 mm (2.9 inches) | 73% | high |
| September Weather | 14°C (58°F) | 54 mm (2.1 inches) | 79% | high |
| October Weather | 11°C (53°F) | 98 mm (3.9 inches) | 89% | moderate |
| November Weather | 8°C (47°F) | 72 mm (2.8 inches) | 90% | low |
| December Weather | 7°C (44°F) | 93 mm (3.7 inches) | 89% | low |