Last updated: August 27, 2025
In December, the average temperature in Royston, United Kingdom hovers around 6°C (43°F). During this month, you might experience a chilly minimum of -4°C (26°F), while the mercury can rise to a pleasant maximum of 15°C (58°F). Expect 82 mm (3.2 in) of precipitation spread over 15 days, making it crucial to carry an umbrella. With an average humidity level of 92%, it's a good time to dress warmly and enjoy the cozy ambiance!
In December in Royston, the average temperature is 6°C (43°F), with maximums reaching up to 15°C (58°F) and minimums dropping as low as -4°C (26°F). Travelers should be prepared for chilly weather and pack layers to stay comfortable during their visit.
In Royston in December, the precipitation amount is 82 mm (3.2 in) over the course of 15 days.
In Royston 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 Royston 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 Royston.
UV Risk Categories
Weather in Royston varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Royston, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 52 mm (2.0 inches) | 91% | low |
| February Weather | 6°C (43°F) | 47 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) | 32 mm (1.2 inches) | 85% | moderate |
| May Weather | 13°C (55°F) | 67 mm (2.6 inches) | 82% | high |
| June Weather | 16°C (62°F) | 72 mm (2.8 inches) | 81% | very high |
| July Weather | 18°C (65°F) | 66 mm (2.6 inches) | 76% | very high |
| August Weather | 18°C (64°F) | 73 mm (2.9 inches) | 73% | high |
| September Weather | 15°C (59°F) | 50 mm (2.0 inches) | 80% | moderate |
| October Weather | 12°C (53°F) | 83 mm (3.3 inches) | 89% | moderate |
| November Weather | 8°C (46°F) | 48 mm (1.9 inches) | 92% | low |
| December Weather | 6°C (43°F) | 82 mm (3.2 inches) | 92% | low |