Last updated: August 27, 2025
In December, the average temperature in Great Amwell, United Kingdom hovers around 6°C (43°F). Expect chilly conditions, with minimum temperatures dropping to -5°C (24°F) and highs reaching up to 14°C (58°F). Rain is fairly common, with total precipitation around 83 mm (3.3 in) spread over 14 days. The air is quite humid too, averaging 92% humidity, making it a cozy but brisk time to visit!
In December in Great Amwell, the average temperature is 6°C (43°F), with maximums reaching 14°C (58°F) and minimums dropping as low as -5°C (24°F). It’s advisable to pack warm clothing and be prepared for chilly conditions while exploring the area.
In Great Amwell in December, the precipitation amount is 83 mm (3.3 in) spread over a period of 14 days.
In Great Amwell in December humidity is 92%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps through your clothes, making outdoor activities uncomfortable and requiring extra layers for warmth while navigating the slick streets.
In Great Amwell 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 Great Amwell.
UV Risk Categories
Weather in Great Amwell varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Great Amwell, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 53 mm (2.1 inches) | 91% | low |
| February Weather | 6°C (43°F) | 49 mm (1.9 inches) | 89% | low |
| March Weather | 7°C (45°F) | 54 mm (2.1 inches) | 86% | moderate |
| April Weather | 9°C (49°F) | 31 mm (1.2 inches) | 85% | moderate |
| May Weather | 13°C (55°F) | 64 mm (2.5 inches) | 82% | high |
| June Weather | 16°C (62°F) | 74 mm (2.9 inches) | 81% | very high |
| July Weather | 18°C (65°F) | 67 mm (2.6 inches) | 76% | very high |
| August Weather | 18°C (64°F) | 74 mm (2.9 inches) | 73% | high |
| September Weather | 15°C (59°F) | 47 mm (1.9 inches) | 80% | high |
| October Weather | 12°C (53°F) | 83 mm (3.3 inches) | 89% | moderate |
| November Weather | 8°C (46°F) | 47 mm (1.8 inches) | 92% | low |
| December Weather | 6°C (43°F) | 83 mm (3.3 inches) | 92% | low |