Last updated: August 27, 2025
In Eastleigh, United Kingdom, the average temperature in December hovers around 7°C (44°F). Expect a brisk range from a chilly -3°C (27°F) to a mild 15°C (59°F). During this month, you'll encounter approximately 93 mm (3.6 in) of precipitation over 14 days, resulting in a high average humidity of 92%. Be prepared for a wet and cool experience!
In December in Eastleigh, the average temperature is 7°C (44°F), with maximums reaching 15°C (59°F) and minimums dropping as low as -3°C (27°F). Travelers should be prepared for a mix of chilly and mild weather during this time.
In Eastleigh in December, the total precipitation amount is 93 mm (3.6 in), occurring over the course of 14 days.
In Eastleigh in December, humidity is 92%. With an average temperature of 7°C (44°F), this humidity feels like an oppressive blanket, making outdoor activities uncomfortable and travel cumbersome as the dampness seeps into your clothes and chills your bones.
In Eastleigh 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 Eastleigh.
UV Risk Categories
Weather in Eastleigh varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Eastleigh, 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) | 59 mm (2.3 inches) | 89% | low |
| March Weather | 8°C (46°F) | 68 mm (2.7 inches) | 86% | moderate |
| April Weather | 10°C (49°F) | 38 mm (1.5 inches) | 85% | high |
| May Weather | 13°C (55°F) | 80 mm (3.2 inches) | 79% | high |
| June Weather | 16°C (61°F) | 89 mm (3.5 inches) | 80% | very high |
| July Weather | 18°C (65°F) | 63 mm (2.5 inches) | 71% | very high |
| August Weather | 17°C (63°F) | 72 mm (2.8 inches) | 76% | high |
| September Weather | 15°C (59°F) | 48 mm (1.9 inches) | 82% | high |
| October Weather | 12°C (53°F) | 102 mm (4.0 inches) | 90% | moderate |
| November Weather | 8°C (47°F) | 66 mm (2.6 inches) | 92% | low |
| December Weather | 7°C (44°F) | 93 mm (3.6 inches) | 92% | low |