December Weather in Truro, United Kingdom

Last updated: March 17, 2025

In Truro, United Kingdom, December's weather presents a varied climate characterized by an average temperature of 9°C (48°F), with highs peaking at 14°C (58°F) and lows dropping to 0°C (33°F). This month typically experiences 102 mm (4.0 in) of precipitation over an average of 17 rainy days, resulting in a rather humid atmosphere with levels around 80%. As the winter months set in, residents and visitors alike should prepare for a blend of crisp air and frequent showers, making for a uniquely atmospheric experience in this charming Cornish city.

December Temperature in Truro

As December arrives in Truro, the temperatures start to dip, reflecting the city's transition into winter. The month typically sees a minimum of 0°C (33°F), which slightly warms from the depths of previous months, while the average temperature settles around 9°C (48°F), providing a brisk yet manageable chill in the air. With a maximum of 14°C (58°F), December balances the lingering mildness of autumn with the onset of wintry days, making it a time to don extra layers and enjoy the enchanting holiday atmosphere. This gradual cooling trend marks a definitive shift from the predominantly mild conditions experienced earlier in the year and sets the stage for the colder months ahead.

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

The chart illustrates December temperature patterns in Truro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec454647505460636259545048
Data source: Temperature data for Truro 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 Truro

December in Truro, United Kingdom, marks a significant point in the precipitation cycle, showcasing a blend of abundant rainfall and frequent wet days. With an impressive 102 mm (4.0 in) of precipitation over 17 days, December ties with October for the highest monthly total of the year. This surge in rainfall reflects a notable shift from the comparatively drier months of spring and early summer, where totals ranged below 83 mm. The increase in rainy days also emphasizes the transition into winter, as December experiences the most precipitation days of any month, further underscoring the season's dampness. Overall, this pattern highlights Truro's climate as one that embraces moisture, particularly in the closing month of the year.

December Precipitation Trends in Truro

The chart displays monthly precipitation patterns in Truro, 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.
JanFebMarAprMayJunJulAugSepOctNovDec59767949678368596010283102
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Truro

As December unfolds in Truro, United Kingdom, the humidity dips slightly to 80%, marking a gentle decline from the higher levels experienced in the summer months. This decrease signals the transition to winter, where humidity levels typically vary between 80% to 87% throughout the year. Following a peak in July at 87%, the autumn months witness a gradual descent, with November maintaining a relatively high humidity of 82%. With December's arrival, the atmosphere begins to feel crisper, yet it still retains a notable level of moisture in the air, characteristic of the region's maritime climate. This trend reflects the seasonal shifts, as Truro gracefully balances between the dampness of summer and the cooler, drier air that winter brings.

December Average Humidity in Truro

This chart illustrates the average monthly humidity levels in Truro, 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.
JanFebMarAprMayJunJulAugSepOctNovDec81%84%83%84%85%86%87%86%85%85%82%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Truro

In Truro, United Kingdom, the UV Index in December drops to a modest 1, categorizing it as low exposure. This trend reflects the overall seasonal pattern, where UV levels begin their descent from higher peaks during the summer months. As the year progresses from the intensities of June's 9 and July's 8, the cooler months of winter feature longer burn times, allowing for 45 minutes of sun exposure without significant risk of harm. December's low UV Index not only offers a reprieve from the sun's rays but also serves as a reminder of the annual cycle of changing sunlight. For those interested in tracking UV levels throughout the year, more information can be found at Truro UV Index.

Maximum UV Index Levels in Truro for December

The chart shows the monthly maximum UV Index (UVI) for Truro 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.
JanFebMarAprMayJunJulAugSepOctNovDec224679876421
Data source: Truro 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 Truro

In December, Truro experiences a transition into the depths of winter, with 119 hours of sunshine lighting up the shorter days. While this marks a reduction compared to the vibrant hours of May and July, it is a significant contrast to the gloomier months of January and November, where sunshine often dipped below 160 hours. This trend suggests that even as the year ends, Truro still offers glimpses of daylight, allowing residents and visitors to enjoy the unique charm of the season. As the sun sets earlier, the softer winter light adds a magical quality to the picturesque town, making December a special time to appreciate the beauty of Truro despite the chill in the air.

Monthly Sunshine Duration in Truro: December Highlighted

The December sunshine duration represents the total number of hours Truro 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.
JanFebMarAprMayJunJulAugSepOctNovDec96h159h238h355h410h409h427h391h329h261h154h119h
Data source: Truro December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Truro During December

In December, Truro experiences a noticeable dip in sunny weather, with only an 18% chance of sunshine, making it one of the cloudiest months of the year. This is a significant decrease compared to the warmer spring months, like April, which boasts over 51% chance of sun. As the year winds down, the likelihood of enjoying bright days lessens, contrasting sharply with the summer's more favorable conditions. With winter settling in, the transition from earlier months highlights a trend towards greyer skies, suggesting that those seeking sunshine in December may want to brace for a more overcast experience.

Percentage of Sunny Days in December in Truro

The chart illustrates the percentage of sunny days in Truro 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 Truro experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec26%24%32%51%35%27%37%28%31%27%22%18%
Data source: Truro December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Truro in December

As December settles in Truro, the daylight hours begin to mirror the cold and cozy embrace of winter, offering only 8 hours of sunlight. This month marks the conclusion of a gradual decline in daylight that started in October, where bright days started to dwindle from the previous peak in June, which boasted a generous 16 hours of daylight. Following the vibrant spring and summer months, where days stretched delightfully long—from 15 hours in May to 14 hours in August—the shorter days of autumn usher in a quieter rhythm. The transition from November's 9 hours to December's minimal sunlight encapsulates the seasonal shift, inviting cozy evenings and a festive atmosphere as the community prepares for the holiday season.

Average Daylight Hours in Truro for December

The chart illustrates the variation in daylight duration in Truro throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 35m10h 4m11h 55m13h 49m15h 27m16h 18m15h 51m14h 22m12h 33m10h 40m9h8h 6m
Data source: Truro daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Truro

As December settles in Truro, the wind picks up with an average speed of 6.4 m/s (14 mph), marking one of the brisker months of the year. Following the fluctuating trends seen in the preceding months, December's winds are notably stronger than the gentle breezes of June and July, which dipped to a mere 3.8 m/s (8 mph) and 4.2 m/s (9 mph), respectively. This increase signals a transition into winter, as the winds typically rise in intensity from the autumn months. While November saw a moderate 4.4 m/s (10 mph), December’s gusts remind us of the spirited energy of the season, making it a perfect time for cozy gatherings by the fireplace, while the chillier air outside serves as a brisk backdrop to holiday festivities.

Average December Wind Speed in Truro

The chart displays monthly wind speed patterns in Truro, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.26.65.34.35.53.84.24.34.05.14.46.4 m/s
Data source: Truro December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Truro Compares to Other Months

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

In comparing December and January weather, January tends to be slightly cooler, with nighttime temperatures dipping to a minimum of -2°C (29°F) compared to December's milder minimum of 0°C (33°F). Both months experience similar maximum temperatures, peaking at 14°C (58°F). However, January generally sees less precipitation, with only 59 mm (2.3 in) falling over 11 days, while December is rainier, receiving 102 mm (4.0 in) over 17 days. Humidity remains relatively high in both months, with January at 81% and December at 80%. For those looking for more details on January's weather pattern, refer to Truro weather in January.

December and February in Truro showcase notable differences in weather patterns. In December, the temperatures range from a chilly minimum of 0°C (33°F) to a relatively mild maximum of 14°C (58°F), with an average of 9°C (48°F). The month is marked by higher precipitation at 102 mm (4.0 in) over 17 days, accompanied by an 80% humidity level. In contrast, February sees slightly cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 15°C (60°F), averaging around 8°C (46°F). Precipitation decreases to 75 mm (3.0 in) over 14 days, and humidity rises slightly to 84%. For more details on February's weather, you can check out Truro weather in February.

December and March present contrasting weather patterns. December typically sees milder temperatures, with an average high of 14°C (58°F) and a minimum of 0°C (33°F), while March can be chillier at times, featuring lows around -5°C (24°F). However, March also offers warmer highs, reaching up to 17°C (64°F). Precipitation in December is slightly higher at 102 mm (4.0 in) over 17 days, compared to March's 79 mm (3.1 in) over 15 days. Humidity is relatively similar, hovering around 80% in December and slightly higher at 83% in March. For a more detailed look at weather specifics during March, you can visit Truro weather in March.

December and April present distinct weather patterns. In December, temperatures range from a chilly 0°C (33°F) to a mild 14°C (58°F), with an average of 9°C (48°F). During this month, precipitation is significant, averaging 102 mm (4.0 in) over 17 days, contributing to a high humidity level of 80%. In contrast, April sees a more noticeable warmth, with temperatures stretching from 0°C (32°F) to a comfortable 22°C (72°F) and an average of 10°C (50°F). Precipitation drops to 49 mm (1.9 in) across just 8 days, despite a slightly higher humidity level of 84%. For a closer look at weather specifics in April, you can explore Truro weather in April.

December and May present contrasting weather patterns. In December, temperatures range from a chilly minimum of 0°C (33°F) to a maximum of 14°C (58°F), with an average of 9°C (48°F). The month is characterized by higher precipitation, totaling 102 mm (4.0 in) over 17 days, and humidity levels around 80%. In comparison, May enjoys milder conditions with minimum temperatures of 2°C (36°F) and maximums reaching 25°C (77°F), averaging 12°C (55°F). The month sees less precipitation, about 67 mm (2.6 in) over 12 days, and humidity slightly higher at 85%. For a detailed look at Truro's delightful May weather, visit Truro weather in May.

December and June present stark contrasts in weather. In December, temperatures range from a minimum of 0°C (33°F) to a maximum of 14°C (58°F), with an average around 9°C (48°F). Humidity levels are high at 80%, and precipitation is quite significant, averaging 102 mm (4.0 in) over 17 days. In contrast, June boasts milder temperatures, with a minimum of 7°C (45°F) and a maximum of 30°C (86°F), leading to a comfortable average of 15°C (60°F). While June also experiences some rainfall, it totals 83 mm (3.3 in) over just 13 days, and humidity is slightly elevated at 86%. For more details on June weather specifics, refer to Truro weather in June.

December and July present contrasting weather profiles that highlight the seasonal variability. In December, temperatures hover between a chilly 0°C (33°F) and a mild 14°C (58°F), with an average of around 9°C (48°F). The month sees significant precipitation, totaling 102 mm (4.0 in) over 17 days, accompanied by a high humidity level of 80%. In stark contrast, July boasts much warmer conditions, with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 28°C (83°F) and an average of 17°C (63°F). Rainfall is lighter, with 68 mm (2.7 in) expected over 11 days, and humidity levels are slightly higher at 87%. Such differences make December feel much colder and wetter compared to the warm, summery ambiance of July, as detailed further in Truro weather in July.

In December, the weather is notably cooler, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 14°C (58°F), and an average temperature of 9°C (48°F). It is also wetter, receiving 102 mm (4.0 in) of precipitation over 17 days, coupled with a humidity level of 80%. In contrast, August offers a much milder climate, with temperatures ranging from a minimum of 10°C (50°F) to a pleasant maximum of 26°C (79°F), averaging 17°C (62°F). Additionally, August sees less rainfall, with 59 mm (2.3 in) spread across 13 days and slightly higher humidity at 86%. For more details about August weather specifically, you can check Truro weather in August.

In comparing the weather between December and September, notable differences emerge. December tends to be much colder, with average temperatures ranging from a minimum of 0°C (33°F) to a maximum of 14°C (58°F), while September enjoys warmer conditions with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 27°C (81°F). Additionally, December has higher precipitation levels, totaling 102 mm (4.0 in) over 17 days, compared to September's 60 mm (2.3 in) over just 10 days. Despite December's lower temperatures, September's humidity is slightly higher at 85%, compared to December's 80%. For more details, you can visit Truro weather in September.

In December, the weather is notably cooler than in October, with average temperatures dropping from 12°C (55°F) in October to 9°C (48°F). While both months experience similar levels of precipitation, December sees rain spread over 17 days, compared to only 13 days in October. Additionally, humidity levels are slightly lower in December at 80%, compared to 85% in October, reflecting the transition to winter. For a detailed look at October's weather patterns, you can visit Truro weather in October.

Comparing the weather in December to that of November reveals a slight drop in temperatures, with December's minimum temperature averaging around 0°C (33°F) compared to November's minimum of 1°C (34°F). The average temperature in December is also a bit cooler at 9°C (48°F) versus November's 10°C (50°F). Although December experiences slightly more precipitation at 102 mm (4.0 in) over 17 days, compared to November's 83 mm (3.3 in) over 14 days, humidity levels remain quite similar at 80% for December and 82% for November. For more detailed information, check out Truro weather in November.

Compare Truro's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Truro

As December sets in, Truro experiences a distinct shift in weather compared to other months, characterized by cooler temperatures and heightened humidity. With an average temperature around 9°C (48°F), it’s a time when the maximum daytime warmth reaches only 14°C (58°F), while frigid nights can dip to 0°C (33°F). This month also sees a notable increase in precipitation, with rain gracing the city on approximately 17 days and accumulating around 102 mm (4.0 in). The persistent 80% humidity adds to the damp chill, making December feel particularly brisk. For a deeper insight into Truro's yearly climate patterns, visit Truro Climate.