December Weather in Hounslow, United Kingdom

Last updated: March 17, 2025

December in Hounslow, United Kingdom, is characterized by a chilly climate, with maximum temperatures reaching up to 14°C (58°F) and an average of 6°C (44°F). As the month progresses, the temperature can dip as low as -4°C (24°F), making warm clothing essential. This month sees significant precipitation, with 84 mm (3.3 in) falling over approximately 13 days, resulting in a humid environment where the humidity levels soar to 92%. Engaging with Hounslow's winter weather calls for preparation, offering a cozy atmosphere perfect for seasonal activities.

December Temperature in Hounslow

As December settles in Hounslow, temperatures take a noticeable dip, marking the transition into the winter months. With a minimum temperature of -4°C (24°F), residents can expect chilly nights that call for cozy attire. The average temperature hovers around 6°C (44°F), providing a crisp backdrop for festive celebrations. Daytime warmth peaks at 14°C (58°F), a modest climb that offers brief respite from the cold. Compared to the ailing autumn temperatures of November, December presents a shift towards a steadier winter chill, encapsulating that quintessential holiday atmosphere while reminding everyone to bundle up and enjoy the seasonal festivities.

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

The chart illustrates December temperature patterns in Hounslow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414345495562656459534643
Data source: Temperature data for Hounslow generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Hounslow

December in Hounslow, United Kingdom, marks a notable peak in precipitation, mirroring the heavy rainfalls of October. With 84 mm (3.3 in) of rain falling over 13 days, it’s a month characterized by frequent wet weather. This trend of increased rainfall as winter sets in is evident when compared to earlier months, with December’s precipitation aligning closely with the previous month's totals. As the year closes, residents are greeted with a chilly, damp atmosphere that sets the stage for a classic British winter, reflecting the overall pattern of rain distribution throughout the year.

December Precipitation Trends in Hounslow

The chart displays monthly precipitation patterns in Hounslow, 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.
JanFebMarAprMayJunJulAugSepOctNovDec545354336277647045845284
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Hounslow

In Hounslow, United Kingdom, December marks a continuation of the region's high humidity levels, sitting at a notable 92%. This winter month ties with November for the highest humidity of the year, reflecting a general trend of elevated moisture content as the winter progresses. The journey through the year reveals a gradual decline from 91% in January to a low of 71% in July, followed by a subtle rebound in the latter months. As days grow shorter and temperatures drop, residents can expect December's humidity to contribute to a chilly yet familiar atmosphere, consistent with the wet English winter. Thus, while the year starts with a moisture-laden air and builds up again, December stands as a testament to Hounslow's characteristic dampness, to which locals are well accustomed.

December Average Humidity in Hounslow

This chart illustrates the average monthly humidity levels in Hounslow, 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 Hounslow

In December, Hounslow experiences a UV Index of 1, categorizing it under the low exposure category with a burn time of approximately 45 minutes. This trend marks a significant dip from the soaring summer months, where the UV Index peaked at 8 in June and July, emphasizing the importance of sun protection during those times. After this high activity, the Index gradually declines into the cooler months, reflecting shorter days and diminished sunlight. As the year wraps up, residents can enjoy outdoor activities with minimal concern for sunburn, making December an ideal time for winter strolls without the heavy scrutiny of UV exposure. For more details on UV trends throughout the year, visit Hounslow UV Index.

Maximum UV Index Levels in Hounslow for December

The chart shows the monthly maximum UV Index (UVI) for Hounslow 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578876421
Data source: Hounslow 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 Hounslow

In Hounslow, United Kingdom, the month of December sees a modest retreat of sunshine, with just 109 hours of bright rays gracing the days. As the year winds down, this marks a notable decrease from the peak of summer, where July dazzles with an impressive 404 hours of sunshine. The trend reveals a gradual build-up of sunlight from the stark 98 hours in January, peaking at 398 hours in May, before gently declining into the winter months. December's limited daylight, coupled with the crisp chill in the air, serves as a reminder of the seasonal ebb and flow, hinting at the cozy warmth of festive celebrations amidst the coolness of winter.

Monthly Sunshine Duration in Hounslow: December Highlighted

The December sunshine duration represents the total number of hours Hounslow 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.
JanFebMarAprMayJunJulAugSepOctNovDec98h148h210h319h398h389h404h368h300h241h144h109h
Data source: Hounslow December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hounslow During December

In Hounslow, the chances of enjoying sunny weather in December take a noticeable dip, with only 17% likelihood of clear skies. This marks a stark contrast to the sunnier months preceding it, particularly April, which boasts nearly 49% sunshine. As the year transitions from autumn to winter, the trend shows a decline in sunny days, with December placing among the lowest for the entire year, just above January's bleak 19%. This seasonal shift highlights the often overcast and chilly nature of December in the UK, reminding us to embrace cozy indoors as the sun retreats.

Percentage of Sunny Days in December in Hounslow

The chart illustrates the percentage of sunny days in Hounslow 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 Hounslow experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%25%29%49%33%28%38%25%29%25%32%17%
Data source: Hounslow December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hounslow in December

In Hounslow, United Kingdom, December marks the transition into the heart of winter, with daylight dwindling to just 7 hours—the shortest of the year. Following a gradual increase from January's 8 hours, daylight diminishes in November before reaching its annual low in December. This reflects the overall trend of decreasing daylight as the year winds down, diverging from the brighter, longer days of spring and summer, which peak in June and July with a generous 16 hours. As the seasons shift, December serves as a gentle reminder of the cyclical nature of light and dark, beckoning the return of longer days just around the corner.

Average Daylight Hours in Hounslow for December

The chart illustrates the variation in daylight duration in Hounslow throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 23m9h 58m11h 55m13h 54m15h 38m16h 32m16h 3m14h 30m12h 35m10h 36m8h 50m7h 53m
Data source: Hounslow daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Hounslow

As December unfolds in Hounslow, the wind picks up its pace, averaging 4.4 m/s (10 mph)—a figure mirrored from October, signaling a seasonal shift. This trend of increased wind speed continues from the calmer summer months, where the winds dipped as low as 3.1 m/s (7 mph) in June and July. Now, as winter approaches, residents can expect more robust breezes echoing the slight upticks in the preceding months, with November showing a moderate wind speed of 3.8 m/s (8 mph). This December wind, though slightly brisker, feels invigorating against the chilly air, inviting those in Hounslow to embrace the season with a refreshing sense of dynamism.

Average December Wind Speed in Hounslow

The chart displays monthly wind speed patterns in Hounslow, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.24.74.43.54.23.13.33.83.34.43.84.4 m/s
Data source: Hounslow December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Hounslow Compares to Other Months

The weather in Hounslow 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 Hounslow and find detailed weather information for every month.

December and January share similar maximum temperatures, both reaching up to 14°C (58°F); however, January tends to be slightly colder on average, with a mean temperature of 5°C (41°F) compared to December's 6°C (44°F). The minimum temperatures often dip lower in January, averaging -5°C (24°F) versus -4°C (24°F) in December. Precipitation is more frequent in December, with 84 mm (3.3 in) spread over 13 days, while January experiences a decrease to 54 mm (2.1 in) over just 10 days. Humidity levels remain relatively high in both months, with December at 92% and January at 91%. For more detailed information on January weather, you can visit Hounslow weather in January.

December and February present a contrast in weather, despite their proximity in the winter season. In December, temperatures can drop to a minimum of -4°C (24°F) and average around 6°C (44°F), with a maximum of 14°C (58°F). This month is also characterized by higher precipitation, totaling 84 mm (3.3 in) over about 13 days, and a high humidity of 92%. In contrast, February features slightly colder minimum temperatures, averaging -5°C (23°F), but it can reach a warmer maximum of 18°C (65°F) on average. The month sees less precipitation at 53 mm (2.1 in) over about 11 days, with humidity decreasing slightly to 89%. For more details, check out Hounslow weather in February.

December weather is characterized by colder temperatures, with a minimum of -4°C (24°F) and an average of 6°C (44°F), while March shows a slight improvement, featuring a minimum of -5°C (23°F) and an average of 7°C (46°F). The maximum temperatures in December reach 14°C (58°F), whereas in March, they can rise significantly to 22°C (71°F). Additionally, December experiences higher precipitation levels at 84 mm (3.3 in) across 13 days, compared to March's 54 mm (2.1 in) over the same number of days. Humidity levels are also slightly lower in March at 86%, compared to December's 92%. For more detailed information on March weather, you can check Hounslow weather in March.

When comparing the weather in December and April, it's clear that April tends to be milder and drier. December temperatures can drop to a minimum of -4°C (24°F), with an average of 6°C (44°F) and a maximum of 14°C (58°F). In contrast, April experiences a more comfortable range, with minimums around -2°C (29°F) and maximums soaring up to 26°C (80°F), averaging at 10°C (49°F). Precipitation is also significantly lower in April, with only 33 mm (1.3 in) over about 8 days, compared to December's 84 mm (3.3 in) spread over 13 rainy days. Additionally, December's humidity is at a higher 92%, while April sees a milder 85%. For more details on the specific weather in April, you can visit Hounslow weather in April.

In December, the weather is considerably colder, with temperatures ranging from a frigid -4°C (24°F) to a maximum of 14°C (58°F). This month sees an average temperature of 6°C (44°F) and high humidity at 92%, contributing to a damp atmosphere with 84 mm (3.3 in) of precipitation over approximately 13 days. In contrast, May welcomes warmer conditions, with temperatures varying from a minimum of 1°C (35°F) to a pleasant high of 25°C (78°F), averaging around 13°C (55°F). The humidity is lower at 79%, and precipitation decreases to 62 mm (2.5 in) across 11 days, indicating a drier and more comfortable climate. For a closer look at what to expect, visit Hounslow weather in May.

December weather is notably colder and wetter compared to June. With temperatures ranging from a chilling -4°C (24°F) at night to a milder 14°C (58°F) during the day, December maintains an average temperature of 6°C (44°F) and sees significant precipitation over 13 days, totaling 84 mm (3.3 in) and high humidity at 92%. In contrast, June boasts warmer temperatures with a minimum of 7°C (45°F) and a maximum reaching up to 31°C (89°F), averaging 16°C (62°F). Despite the higher temperatures, June has slightly less precipitation, totalling 77 mm (3.0 in) over just 9 days, along with a lower humidity level of 80%. For more detailed information, check out Hounslow weather in June.

December and July present strikingly different weather conditions. In December, temperatures can drop as low as -4°C (24°F), with average highs reaching only 14°C (58°F), contributing to a chilly atmosphere and high humidity of 92%. This month also sees about 84 mm (3.3 in) of precipitation over approximately 13 days, making it a relatively wet time of year. In contrast, July offers a much warmer climate, with minimum temperatures starting at 9°C (49°F) and average highs soaring to 36°C (96°F). The summer month experiences less rainfall, averaging 64 mm (2.5 in) over 11 days, and a lower humidity level of 71%. For more details on July's weather, check out Hounslow weather in July.

December and August present contrasting weather experiences. In December, temperatures can drop to a chilly -4°C (24°F), with an average of 6°C (44°F) and highs reaching 14°C (58°F). The month sees considerable precipitation, amounting to 84 mm (3.3 in) over approximately 13 days, coupled with high humidity levels at 92%. In stark contrast, August enjoys a much milder climate, with minimum temperatures around 8°C (47°F), average highs of 18°C (64°F), and peaks soaring to 34°C (93°F). The total precipitation in August is lower at 70 mm (2.7 in) over just 12 days, and the humidity is more comfortable at 76%. For more details, you can check out Hounslow weather in August.

December and September present stark contrasts in weather conditions. In December, temperatures range from a chilly -4°C (24°F) at night to a mild 14°C (58°F) during the day, with an average of 6°C (44°F). The month is marked by higher humidity at 92% and more precipitation, totaling 84 mm (3.3 in) over approximately 13 days. In contrast, September offers much warmer temperatures, with nighttime lows of 4°C (39°F) and daytime highs reaching up to 28°C (83°F), averaging 15°C (59°F). Moreover, September sees less rainfall, with only 45 mm (1.8 in) across about 10 days, and a slightly lower humidity of 82%. For more detailed insights, you can check Hounslow weather in September.

In December, temperatures drop significantly compared to October, with a minimum of -4°C (24°F) and an average of only 6°C (44°F), while October boasts milder conditions with temperatures ranging from a minimum of 1°C (34°F) to an average of 12°C (54°F) and a maximum of 22°C (73°F). Both months experience similar precipitation levels, with December receiving 84 mm (3.3 in) over 13 days and October also seeing 84 mm (3.3 in) but over just 12 days. Humidity is slightly higher in December at 92%, compared to October's 90%, reflecting the chillier and wetter conditions as winter sets in. For more detailed information on October weather, you can check out Hounslow weather in October.

In comparing the weather of December and November, December tends to be slightly colder, with minimum temperatures dropping to -4°C (24°F) compared to November's minimum of -2°C (29°F). The average temperature in December is around 6°C (44°F), while November has a warmer average of 8°C (47°F). Additionally, December experiences more rainfall, with 84 mm (3.3 in) over 13 days, in contrast to November's 52 mm (2.0 in) across 11 days. Both months maintain a high humidity level of 92%. For more detailed insights, you can check Hounslow weather in November.

Compare Hounslow's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Hounslow

As December settles in Hounslow, the weather shifts dramatically compared to other months. With a maximum temperature of 14°C and a sharp drop to minimums near -4°C, the chill of winter becomes palpable, making the month one of the coldest of the year. Coupled with high humidity levels and frequent precipitation, December often presents a grey and damp atmosphere, contrasting sharply with the milder and sunnier days of earlier months. With 13 rainy days leading to a total precipitation of 84 mm, residents should prepare for a month where layers and umbrellas are essential for navigating the brisk conditions. For those interested in understanding Hounslow’s weather patterns more comprehensively, visit Hounslow Climate.