December Weather in Winchester, United Kingdom

Last updated: March 17, 2025

In December, Winchester, United Kingdom experiences a distinct winter climate characterized by mild temperatures and considerable precipitation. The maximum temperature reaches around 15°C (59°F), while it averages at a chilly 7°C (44°F), dipping to a frigid -3°C (27°F) during the coldest nights. With an average of 93 mm (3.6 in) of rain over approximately 14 days, residents and visitors should be prepared for wet weather, complemented by high humidity levels averaging 92%. This blend of cool temperatures and frequent rainfall creates a picturesque yet brisk atmosphere, ideal for enjoying the seasonal charm of Winchester.

December Temperature in Winchester

As December blankets Winchester in winter's chill, temperatures typically range from a minimum of -3°C (27°F) to a maximum of 15°C (59°F), presenting a crisp yet manageable climate for those venturing outdoors. The average temperature settles around 7°C (44°F), providing a sharp contrast to the milder conditions of the preceding autumn months, where November saw averages of 8°C (47°F). This gradual cooling trend signals the transition into a truly wintry setting, making December a perfect time for festive gatherings and cozy indoor activities, as the city prepares for the magic of the holiday season. Overall, Winchester’s December temperatures evoke a serene chill, encouraging residents and visitors alike to savor the beauty of winter.

December Weather in Winchester: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Winchester, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414346495561656359534644
Data source: Temperature data for Winchester generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Winchester

December in Winchester, United Kingdom, sees a significant uptick in precipitation, with an average of 93 mm (3.6 in) over approximately 14 days of rain. This is a notable increase compared to the relatively drier months of April and September, which experience only about 38 mm (1.5 in) and 48 mm (1.9 in) of rainfall, respectively. As winter sets in, precipitation levels rise, reaching a peak in October at 102 mm (4.0 in) before slightly tapering off in November. Yet, December’s rainfall remains substantial, contributing to a wet end to the year. This trend underscores the transition from the milder, drier autumn months to a wetter winter period, making December one of the rainier months for the region.

December Precipitation Trends in Winchester

The chart displays monthly precipitation patterns in Winchester, with values for each month alongside December's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec5359683880896372481026693
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Winchester

December in Winchester, United Kingdom, welcomes a notable chill, accompanied by high levels of humidity, peaking at 92%—a level consistent with the months preceding it. As the year draws to a close, the humidity trends reflect a general decline from the sweltering summer months, where July saw the lowest average at 71%. However, the winter months bring about a return to moisture-laden air, with both November and December mirroring each other closely. This consistent humidity, coupled with the winter cold, creates a uniquely damp atmosphere, shaping the cozy character of winter in Winchester.

December Average Humidity in Winchester

This chart illustrates the average monthly humidity levels in Winchester, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%79%81%71%76%82%91%92%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Winchester

In December, Winchester experiences a return to lower sun exposure, with a UV Index of 1 that falls into the low exposure category. This means that residents and visitors can spend up to 45 minutes outside without significant risk of burning. December's UV levels are a stark contrast to the summer months, where UV Index ratings peaked at 8, indicating very high exposure and necessitating caution. Following a gradual descent from the summer highs, the UV Index during winter reminders us to adapt our sun safety practices accordingly. For more detailed insights on seasonal UV trends, visit Winchester UV Index.

Maximum UV Index Levels in Winchester for December

The chart shows the monthly maximum UV Index (UVI) for Winchester in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec124678876421
Data source: Winchester December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Winchester

In Winchester, December ushers in a gentle drop in sunshine hours, with an average of 112 hours illuminating the city. This marks a noticeable decline from the vibrant 395 hours of sunshine seen in May, reflecting the gradual transition into winter's shorter days. As the year progresses, the increase in daylight is evident from January’s sparse 100 hours to a peak in July, which boasts 402 hours of sunshine. While December may not shine as brightly as the more temperate months, the lingering festive spirit and crisp winter air still offer moments to relish the sun’s rare appearance, creating a unique charm that characterizes the season in this historic city.

Monthly Sunshine Duration in Winchester: December Highlighted

The December sunshine duration represents the total number of hours Winchester experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec100h143h201h323h395h386h402h366h299h239h148h112h
Data source: Winchester December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Winchester During December

In Winchester, United Kingdom, the likelihood of sunny weather takes a notable dip in December, with only 21% chance of clear skies. This trend marks a decline as the year comes to a close, following a seasonal peak in April at 55%. As winter settles in, December's sunshine probability aligns more closely with the chilly months of January and February, which linger in the low twenties. While the promise of brighter days begins to fade, this month still offers a contrast to the generally gray atmosphere that often envelops the late fall and early winter. Embracing the cozy ambiance of December, residents can find beauty in the fleeting moments of sunshine that occasionally break through the clouds.

Percentage of Sunny Days in December in Winchester

The chart illustrates the percentage of sunny days in Winchester throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Winchester experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%24%33%55%36%28%38%28%30%28%34%21%
Data source: Winchester December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Winchester in December

In Winchester, United Kingdom, December marks the heart of winter, where daylight begins to dwindle to a mere 7 hours each day. This reduction is part of a gradual decline from the longer days of summer, as seen in June, when daylight peaked at 16 hours. As the seasons transition, November sees a slight drop to 8 hours, followed by December's shortest days. Conversely, as we look towards spring, daylight durations rapidly increase, starting with 10 hours in February and culminating in 15 hours by May. This cyclical trend exemplifies the rhythm of the seasons, where each month offers a unique balance of light and dark, shaping daily life in this charming English town.

Average Daylight Hours in Winchester for December

The chart illustrates the variation in daylight duration in Winchester throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 29m10h 1m11h 55m13h 51m15h 33m16h 26m15h 57m14h 26m12h 34m10h 38m8h 54m7h 59m
Data source: Winchester daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Winchester

As December rolls in, the wind in Winchester picks up to an average speed of 4.4 m/s (10 mph), slightly stronger than many months throughout the year. This uptick is indicative of the onset of winter, which tends to bring brisker conditions compared to the more gentle breezes of late spring and summer. Notably, December's wind strength follows a pattern of fluctuating speeds, with a peak observed in February and several months maintaining a consistent pace at 4.3 m/s (10 mph). The transition from the milder winds of autumn, averaging around 3.6 m/s (8 mph) in November, to this invigorated December current serves as a reminder of the changing seasons in Winchester, inviting locals and visitors alike to bundle up and embrace the chilly charm of winter walks.

Average December Wind Speed in Winchester

The chart displays monthly wind speed patterns in Winchester, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.34.94.33.44.33.13.33.73.34.33.64.4 m/s
Data source: Winchester December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Winchester Compares to Other Months

The weather in Winchester changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Winchester and find detailed weather information for every month.

December and January in Winchester present a notable contrast in weather. December enjoys a slightly milder average temperature of 7°C (44°F), with maximums reaching 15°C (59°F), but it also brings higher precipitation levels at 93 mm (3.6 in) across 14 days, coupled with high humidity at 92%. In contrast, January sees a drop in temperature, averaging 5°C (41°F) with maximums of 14°C (57°F), but it experiences considerably less rainfall at 53 mm (2.1 in) over 10 days and slightly lower humidity at 91%. Overall, while both months share cool temperatures, January tends to be drier and colder than December. For more specifics, visit Winchester weather in January.

December and February in Winchester exhibit notable differences in weather patterns. In December, temperatures range from a chilly minimum of -3°C (27°F) to a more moderate maximum of 15°C (59°F), with an average temperature of 7°C (44°F). This month also experiences substantial precipitation, totaling 93 mm (3.6 in) across 14 days, creating a humid environment with 92% humidity.

Conversely, February tends to be colder, with minimum temperatures dipping to -9°C (15°F) and an average of 6°C (43°F). The maximums reach 17°C (63°F), making it slightly warmer during the day compared to December. However, February sees less precipitation, totaling 59 mm (2.3 in) over 11 days, accompanied by a slightly lower humidity at 89%.

For more details on February's weather, you can refer to Winchester weather in February.

December and March present contrasting weather patterns. In December, temperatures range from a low of -3°C (27°F) to an average of 7°C (44°F), with maximums reaching 15°C (59°F). The month is marked by higher precipitation, totaling 93 mm (3.6 in) over approximately 14 days, along with a humidity level of 92%. In contrast, March experiences slightly colder conditions with minimum temperatures dipping to -6°C (21°F) but an average peaking at 8°C (46°F) and maximums soaring to 20°C (69°F). Precipitation in March is lower, accumulating to 68 mm (2.7 in) over around 13 days, along with a more moderate humidity of 86%. For a detailed look at March weather conditions, you can check the following link: Winchester weather in March.

In December, the weather tends to be much cooler and wetter, with temperatures ranging from a chilly -3°C (27°F) to a maximum of 15°C (59°F) and an average of 7°C (44°F). The month typically sees about 93 mm (3.6 in) of precipitation over 14 days, accompanied by high humidity levels of 92%. In contrast, April offers a more moderate climate, with temperatures varying from -3°C (27°F) to a warm 25°C (77°F), and an average temperature of 10°C (49°F). Precipitation drops significantly to 38 mm (1.5 in) over just 8 days, and humidity decreases slightly to 85%. For a detailed look at April weather, you can check Winchester weather in April.

December and May exhibit contrasting weather patterns. In December, temperatures range from a chilly minimum of -3°C (27°F) to a mild maximum of 15°C (59°F), with an average temperature of 7°C (44°F). The month is characterized by high humidity at 92% and considerable precipitation, totaling 93 mm (3.6 in) over 14 days. In contrast, May boasts significantly warmer conditions, with temperatures ranging from a minimum of 1°C (33°F) to a pleasant maximum of 26°C (79°F), and an average temperature of 13°C (55°F). Although May has slightly less precipitation at 80 mm (3.2 in) over 11 days, its lower humidity of 79% creates a more comfortable atmosphere. For more detailed information, you can check Winchester weather in May.

December weather in Winchester is characterized by cooler temperatures, with a minimum of -3°C (27°F) and an average of 7°C (44°F), peaking at 15°C (59°F). In addition, December experiences higher humidity levels at 92% and more frequent precipitation days, totaling 93 mm (3.6 in) over 14 days. In contrast, June brings a warmer climate, featuring a minimum temperature of 6°C (44°F), an average of 16°C (61°F), and a maximum of 31°C (88°F). Precipitation is slightly lower in June at 89 mm (3.5 in) spread over just 10 days, while the humidity drops to 80%. For more detailed information, check out Winchester weather in June.

December and July present strikingly different weather conditions. In December, temperatures range from a chilly -3°C (27°F) to a maximum of 15°C (59°F), with an average of 7°C (44°F). The month sees significant precipitation, totaling 93 mm (3.6 in) over 14 days, coupled with high humidity at 92%. In contrast, July offers a much warmer climate, with temperatures fluctuating between 7°C (46°F) and a high of 32°C (91°F), averaging 18°C (65°F). The rainfall is less frequent and lighter, totaling 63 mm (2.5 in) over 11 days, and humidity drops to a more comfortable 71%. For more detailed information on July weather, you can visit Winchester weather in July.

When comparing the weather in December and August, notable contrasts emerge. December's temperatures range from a chilly minimum of -3°C (27°F) to a mild maximum of 15°C (59°F), with an average of 7°C (44°F). The month experiences significant precipitation, totaling 93 mm (3.6 in) over approximately 14 days, accompanied by high humidity at 92%. In contrast, August offers much warmer conditions, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 32°C (90°F) and an average of 17°C (63°F). Precipitation is less frequent, totaling 72 mm (2.8 in) across 13 days, and humidity is lower at 76%. For a detailed look at the weather patterns, check out Winchester weather in August.

December and September present quite different weather experiences. In December, temperatures range from a chilly min of -3°C (27°F) to a milder max of 15°C (59°F), with an average of 7°C (44°F). The month sees more frequent precipitation, totaling 93 mm (3.6 in) over 14 days and a higher humidity of 92%. In contrast, September boasts a much warmer climate, with temperatures ranging from a min of 2°C (36°F) to a comfortable max of 28°C (82°F) and an average of 15°C (59°F). Precipitation in September is lighter, totaling 48 mm (1.9 in) across just 9 days, accompanied by a lower humidity of 82%. These contrasting conditions highlight September's transition into autumn compared to the colder, wetter days of December. For more details, check Winchester weather in September.

December weather presents a notable contrast to that of October. While December's temperatures range from a chilly -3°C (27°F) at night to a milder 15°C (59°F) during the day, October enjoys a more temperate spectrum, with lows around 0°C (32°F) and highs peaking at 21°C (71°F). Precipitation is slightly higher in October at 102 mm (4.0 in) over 13 days, compared to December's 93 mm (3.6 in) over 14 days. Humidity levels are also higher in December, averaging 92%, while October sits at 90%. For more detailed insights on October weather, you can check Winchester weather in October.

In comparing the weather between December and November, both months experience similar minimum temperatures, hovering around -3°C (27°F for December and 28°F for November). However, December tends to be slightly cooler overall with an average temperature of 7°C (44°F), compared to November's 8°C (47°F). Additionally, December sees more precipitation, with a total of 93 mm (3.6 in) over 14 days, surpassing November’s 66 mm (2.6 in) over 11 days. Both months maintain high humidity levels at 92%, but December’s increased rainfall might create a more damp environment. For a more detailed look at November's weather patterns, refer to Winchester weather in November.

Compare Winchester's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Winchester

December in Winchester brings a chilly embrace as temperatures dip, showcasing a notable contrast to the more temperate months. With an average of 7°C (44°F) and occasional lows reaching -3°C (27°F), it's a time when the cold can bite, compelling residents and visitors alike to bundle up. The month also sees increased precipitation, with about 93 mm falling over 14 days, creating a damp atmosphere complemented by high humidity levels around 92%. This combination of cooler temperatures and consistent rain makes December a time of cozy indoor gatherings and festive cheer, as the city transforms into a winter wonderland. For a more comprehensive understanding of the seasonal shifts, visit Winchester Climate.