Last updated: August 27, 2025
In Newtown St Boswells, United Kingdom, the average temperature in December hovers around 4°C (39°F), creating a brisk atmosphere. Expect a range from a chilly -8°C (19°F) to a mild 12°C (53°F). During this period, precipitation averages 76 mm (3.0 in) spread over 14 days, contributing to an average humidity of 89%. Embrace the cool weather and prepare for occasional showers!
In December in Newtown St Boswells, the average temperature is 4°C (39°F). The maximum can reach 12°C (53°F) and the minimum can be as low as -8°C (19°F). Travelers should prepare for chilly weather and dress in layers to stay warm while exploring the area.
In Newtown St Boswells in December, the precipitation amount is 76 mm (3.0 in) spread over 14 days.
In Newtown St Boswells in December humidity is 89%. With an average temperature of 4°C (39°F), this humidity feels like an uninviting chill that seeps into your bones, making travel uncomfortable and necessitating extra layers of clothing to fend off the dampness.
In Newtown St Boswells 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 Newtown St Boswells.
UV Risk Categories
Weather in Newtown St Boswells varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Newtown St Boswells, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 58 mm (2.3 inches) | 90% | low |
| February Weather | 4°C (39°F) | 100 mm (4.0 inches) | 88% | low |
| March Weather | 5°C (41°F) | 88 mm (3.5 inches) | 86% | moderate |
| April Weather | 7°C (44°F) | 39 mm (1.5 inches) | 85% | moderate |
| May Weather | 10°C (50°F) | 64 mm (2.5 inches) | 80% | high |
| June Weather | 13°C (55°F) | 90 mm (3.6 inches) | 83% | very high |
| July Weather | 15°C (59°F) | 91 mm (3.6 inches) | 82% | very high |
| August Weather | 14°C (57°F) | 108 mm (4.3 inches) | 82% | high |
| September Weather | 12°C (53°F) | 69 mm (2.7 inches) | 88% | moderate |
| October Weather | 9°C (48°F) | 99 mm (3.9 inches) | 90% | moderate |
| November Weather | 6°C (42°F) | 71 mm (2.8 inches) | 92% | low |
| December Weather | 4°C (39°F) | 76 mm (3.0 inches) | 89% | low |