Last updated: August 27, 2025
In December, the average temperature in Derwen, United Kingdom hovers around 5°C (41°F). Be prepared for chilly days, as temperatures can dip as low as -8°C (18°F), while occasionally reaching a maximum of 12°C (54°F). Rain is quite common, with approximately 126 mm (5.0 in) falling over about 18 days. The air can feel quite damp, with an average humidity level of 89%.
In December in Derwen, the average temperature is 5°C (41°F). The maximum can reach 12°C (54°F), while the minimum can drop as low as -8°C (18°F). It's advisable to pack warm clothing and be prepared for chilly weather if you're traveling during this time.
In Derwen in December, the precipitation amount is 126 mm (5.0 in) spread over 18 days.
In Derwen in December humidity is 89%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration less enjoyable and encouraging travelers to seek warmth indoors or layer up to stay comfortable while venturing out.
In Derwen 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 Derwen.
UV Risk Categories
Weather in Derwen varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Derwen, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 79 mm (3.1 inches) | 89% | low |
| February Weather | 5°C (41°F) | 111 mm (4.4 inches) | 88% | low |
| March Weather | 6°C (42°F) | 112 mm (4.4 inches) | 86% | moderate |
| April Weather | 8°C (46°F) | 63 mm (2.5 inches) | 84% | moderate |
| May Weather | 10°C (51°F) | 77 mm (3.0 inches) | 79% | high |
| June Weather | 14°C (57°F) | 99 mm (3.9 inches) | 81% | very high |
| July Weather | 15°C (60°F) | 89 mm (3.5 inches) | 78% | very high |
| August Weather | 15°C (59°F) | 115 mm (4.5 inches) | 79% | high |
| September Weather | 13°C (55°F) | 100 mm (3.9 inches) | 85% | moderate |
| October Weather | 10°C (50°F) | 116 mm (4.6 inches) | 90% | moderate |
| November Weather | 7°C (44°F) | 92 mm (3.6 inches) | 91% | low |
| December Weather | 5°C (41°F) | 126 mm (5.0 inches) | 89% | low |