Last updated: August 27, 2025
In December, the average temperature in Callow, United Kingdom hovers around 6°C (43°F). However, temperatures can vary significantly, dropping to a chilly -10°C (14°F) at times, while reaching up to a mild 14°C (57°F). Expect 91 mm (3.6 in) of precipitation spread over 15 days during the month, accompanied by a high average humidity of 89%. Stay prepared for a mix of weather!
In December in Callow, the average temperature is 6°C (43°F). The maximum can reach 14°C (57°F), and the minimum can be as low as -10°C (14°F). Travelers should be prepared for chilly conditions and pack accordingly for a range of temperatures.
In Callow in December, the total precipitation amount is 91 mm (3.6 in) over a span of 15 days.
In Callow in December, humidity is 89%. With an average temperature of 6°C (43°F), this humidity feels like a chilly, damp embrace that can make outdoor activities uncomfortable and energy-draining, often leading travelers to seek shelter indoors or dress in layers to cope with the cold and moist air.
In Callow 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 Callow.
UV Risk Categories
Weather in Callow varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Callow, 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) | 88% | low |
| February Weather | 6°C (43°F) | 64 mm (2.5 inches) | 88% | low |
| March Weather | 7°C (45°F) | 73 mm (2.9 inches) | 86% | moderate |
| April Weather | 9°C (48°F) | 51 mm (2.0 inches) | 84% | moderate |
| May Weather | 12°C (54°F) | 73 mm (2.9 inches) | 80% | high |
| June Weather | 15°C (60°F) | 76 mm (3.0 inches) | 80% | very high |
| July Weather | 17°C (63°F) | 61 mm (2.4 inches) | 70% | very high |
| August Weather | 16°C (62°F) | 72 mm (2.8 inches) | 73% | high |
| September Weather | 14°C (58°F) | 52 mm (2.1 inches) | 79% | high |
| October Weather | 11°C (52°F) | 94 mm (3.7 inches) | 89% | moderate |
| November Weather | 8°C (46°F) | 73 mm (2.9 inches) | 90% | low |
| December Weather | 6°C (43°F) | 91 mm (3.6 inches) | 89% | low |