Last updated: August 27, 2025
In December, the average temperature in Swainby, United Kingdom hovers around 5°C (42°F), with lows dipping to -3°C (27°F) and highs reaching up to 13°C (55°F). Expect 79 mm (3.1 in) of precipitation spread over about 15 days, contributing to an average humidity level of 88%.
In December in Swainby, the average temperature is 5°C (42°F). Maximums can reach 13°C (55°F), while minimums can drop to as low as -3°C (27°F). Be prepared for a mix of cool and chilly weather when traveling during this time.
In Swainby in December, the precipitation amount is 79 mm (3.1 in) spread over 15 days.
In Swainby in December humidity is 88%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less appealing and leading you to seek warmth indoors instead.
In Swainby 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 Swainby.
UV Risk Categories
Weather in Swainby varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Swainby, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 57 mm (2.2 inches) | 89% | low |
| February Weather | 5°C (42°F) | 76 mm (3.0 inches) | 87% | low |
| March Weather | 6°C (44°F) | 63 mm (2.5 inches) | 85% | moderate |
| April Weather | 8°C (46°F) | 35 mm (1.4 inches) | 84% | moderate |
| May Weather | 11°C (52°F) | 56 mm (2.2 inches) | 83% | high |
| June Weather | 14°C (57°F) | 87 mm (3.4 inches) | 85% | very high |
| July Weather | 16°C (61°F) | 74 mm (2.9 inches) | 83% | very high |
| August Weather | 16°C (61°F) | 80 mm (3.1 inches) | 82% | high |
| September Weather | 14°C (57°F) | 71 mm (2.8 inches) | 87% | moderate |
| October Weather | 11°C (52°F) | 89 mm (3.5 inches) | 89% | moderate |
| November Weather | 8°C (46°F) | 69 mm (2.7 inches) | 90% | low |
| December Weather | 5°C (42°F) | 79 mm (3.1 inches) | 88% | low |