December Weather in San Marco, Italy

Last updated: March 24, 2025

December in San Marco, Italy, greets visitors with a cool climate characterized by a maximum temperature of 15°C (60°F) and an average of 5°C (41°F), dipping to a crisp minimum of -3°C (27°F). Travelers can expect moderate precipitation, with around 87 mm (3.4 in) falling over seven days throughout the month, making umbrellas a must-have accessory. The humidity levels hover around a notable 85%, adding to the chilly atmosphere. Despite the damp chill, December's charm lies in its tranquil streets and festive spirit, inviting exploration and cozy moments by the fireside.

December Temperature in San Marco

As December rolls into San Marco, Italy, the chill of winter settles in, with temperatures ranging from a brisk -3°C (27°F) at night to a modest 15°C (60°F) during the day. This month marks a drop from the milder conditions of November, where daily averages hovered around 10°C (50°F). With an average of 5°C (41°F), December experiences one of the coldest spells of the year, pushing residents and visitors to don their warmest attire. Despite the cold, the festive ambiance brought on by holiday celebrations infuses the air with warmth and cheer, creating a captivating contrast against the wintry backdrop. As the month progresses, the allure of San Marco's historic architecture is enhanced by gentle frosts, making every stroll through its charming streets a spellbinding experience.

December Weather in San Marco: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in San Marco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec384449576574777869595040
Data source: Temperature data for San Marco 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 San Marco

In December, San Marco experiences a moderate amount of precipitation, with 87 mm (3.4 in) falling over approximately 7 days. This marks a return to wetter conditions, similar to what was seen in both October and November, which recorded 87 mm and 138 mm respectively. Following a notably rainy November, which had the highest precipitation of the year, December's figures suggest a slight easing in the deluge, yet still reflect the region's tendency towards increased rainfall as winter sets in. This trend emphasizes San Marco’s dynamic climate, where the transition from fall to winter is marked by a steady rhythm of rainy days, providing a lush backdrop to the picturesque Italian landscape.

December Precipitation Trends in San Marco

The chart displays monthly precipitation patterns in San Marco, 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.
JanFebMarAprMayJunJulAugSepOctNovDec335557961317277731148713887
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Marco

As the year winds down, December in San Marco, Italy, experiences a humidity of 85%, a slight decrease from the notably higher levels seen in October and November. This month continues the trend of increased moisture levels typically felt during the colder months, with January boasting the highest humidity at 87%. Throughout the year, humidity levels have shown a clear seasonal pattern: the summer months of June to August enjoy a refreshing low average, peaking at a dry 54% in August, while the fall and winter months see a resurgence in moisture. The gradual transition from March’s 69% to April’s 71% illustrates a growing trend toward higher humidity levels as the seasons shift, eventually culminating in December's rich, damp air that brings a cozy ambiance to the festive season.

December Average Humidity in San Marco

This chart illustrates the average monthly humidity levels in San Marco, 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.
JanFebMarAprMayJunJulAugSepOctNovDec87%79%69%71%70%65%61%54%66%83%88%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Marco

In December, San Marco, Italy, experiences a low UV Index of 2, with a corresponding burn time of 45 minutes under the sun. This marks a notable decrease from the vibrant summer months, where the UV Index peaked at 9 during June and July, indicating a very high risk of harm from unprotected sun exposure. As autumn fades into winter, the UV Index remains moderate through November before transitioning back to safer levels. Visitors can enjoy the beautiful landscapes without the intense sun exposure, making December a pleasant time to explore the region. For detailed information on UV levels throughout the year, visit San Marco UV Index.

Maximum UV Index Levels in San Marco for December

The chart shows the monthly maximum UV Index (UVI) for San Marco 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689987532
Data source: San Marco 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 San Marco

As the year draws to a close, December in San Marco, Italy offers a gentle shift in the sun's embrace, boasting 207 hours of sunshine. While this marks a decline from the vibrant glow of summer, where July shines brightest with 427 hours, it still outshines the winter months preceding it, hinting that the allure of sunny days lingers. Following the golden glow of autumn, with November basking in 226 hours, December invites visitors to experience the charm of a quieter season, where the soft sunlight delicately illuminates the historic canals and piazzas, creating a picturesque backdrop for leisurely strolls and festive celebrations. This transitional month, although cooler, continues to offer its own unique beauty, making it an ideal time to explore the enchanting streets of San Marco.

Monthly Sunshine Duration in San Marco: December Highlighted

The December sunshine duration represents the total number of hours San Marco 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.
JanFebMarAprMayJunJulAugSepOctNovDec188h235h311h346h380h414h427h395h333h294h226h207h
Data source: San Marco December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Marco During December

As December unfolds in San Marco, Italy, the chances of sunny weather hover around 44%, offering a modest promise of sunshine amidst the cool winter days. This percentage reflects a slight increase from November's 34%, suggesting that while the month may be gray, there are brighter moments to be enjoyed. Following a general trend, the likelihood of sun rises slightly from late autumn into early winter, though it's worth noting that sunshine becomes more prevalent in the spring months, peaking at 61% in March. Thus, while December may not offer the sun-drenched days of summer or the vibrant light of spring, it still invites a mix of weather, keeping the charm of San Marco alive with a hint of winter sunshine.

Percentage of Sunny Days in December in San Marco

The chart illustrates the percentage of sunny days in San Marco 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 San Marco experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec35%43%61%45%43%55%50%59%55%47%34%44%
Data source: San Marco December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Marco in December

As December unfolds in San Marco, Italy, daylight begins to wane, offering just 8 hours of sunlight, the shortest in the year. This marks a notable decline from the sun-drenched days of July and June, where daylight stretches to a vibrant 15 hours. The journey through the months reveals a beautiful seasonal transition: beginning with 9 hours in January, the days gradually lengthen until they peak in late spring. However, as autumn steps in, the hours of daylight start to dwindle once again, descending to 10 hours by October and retreating to that 8-hour mark by mid-winter. This cyclical dance of light highlights the enchanting rhythm of time in this picturesque Italian locale.

Average Daylight Hours in San Marco for December

The chart illustrates the variation in daylight duration in San Marco throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 9m10h 23m11h 56m13h 32m14h 54m15h 35m15h 13m14h12h 29m10h 53m9h 29m8h 46m
Data source: San Marco daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in San Marco

In December, San Marco experiences a gentle embrace from the winter winds, with an average speed of 1.5 m/s (3 mph). This slight cooling from the previous months signifies a subtle shift towards the calmness of winter. As the year winds down, the trend shows a gradual decline in wind speeds from the more dynamic breezes of late spring and early autumn. Notably, the average wind – while whisper-soft compared to the stronger gusts of November at 2.0 m/s (5 mph) – lends a serene quality to the atmosphere, enhancing the charm of this iconic Venetian piazza and inviting visitors to bask in its tranquil beauty.

Average December Wind Speed in San Marco

The chart displays monthly wind speed patterns in San Marco, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.91.71.82.02.21.71.91.91.71.72.01.5 m/s
Data source: San Marco December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in San Marco Compares to Other Months

The weather in San Marco 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 San Marco and find detailed weather information for every month.

In December, temperatures range from a minimum of -3°C (27°F) to a maximum of 15°C (60°F), with an average temperature of 5°C (41°F). The month experiences significant precipitation, with 87 mm (3.4 in) falling over about 7 days, contributing to a relatively high humidity level of 85%. In contrast, January sees slightly colder conditions, with temperatures dipping to a minimum of -5°C (22°F) and an average of 3°C (39°F), peaking at 14°C (58°F). Rainfall is notably reduced, totaling only 33 mm (1.3 in) over just 3 days, while humidity remains consistently high at 87%. For more detailed insights into January weather, you can check San Marco weather in January.

December weather typically features a minimum temperature of -3°C (27°F) and an average of 5°C (41°F), with a maximum reaching up to 15°C (60°F). This month sees about 87 mm (3.4 in) of precipitation over approximately 7 days, coupled with high humidity levels at 85%. In contrast, February experiences slightly lower minimum temperatures at -5°C (24°F) and a marginally higher average of 6°C (44°F), with a maximum temperature that can climb to 21°C (71°F). February receives less precipitation, around 55 mm (2.2 in) over 6 days, and slightly lower humidity at 79%. For more detailed insights on February weather, check out San Marco weather in February.

December and March present strikingly different weather patterns. In December, temperatures generally range from a chilly minimum of -3°C (27°F) to a pleasant maximum of 15°C (60°F), with an average of 5°C (41°F). This month experiences considerable precipitation, totaling 87 mm (3.4 in) over about 7 days, contributing to a high humidity level of 85%. In contrast, March welcomes a broader temperature range with a minimum of -4°C (25°F) and a maximum reaching 24°C (76°F), making the average temperature warmer at 9°C (49°F). Precipitation during this month decreases to 57 mm (2.2 in) over 8 days, resulting in lower humidity at 69%. For a more specific look at the weather dynamics in March, you can refer to San Marco weather in March.

In December, temperatures range from a chilly -3°C (27°F) at night to a mild 15°C (60°F) during the day, with an average around 5°C (41°F). The month is characterized by high humidity at 85% and receives about 87 mm (3.4 in) of precipitation over approximately 7 days. In contrast, April ushers in significantly warmer weather, with temperatures fluctuating from a minimum of -1°C (30°F) to a maximum of 28°C (83°F), averaging at 14°C (57°F). Although April experiences slightly higher precipitation at 96 mm (3.8 in) over about 9 days, the humidity drops to a more comfortable 71%. For a detailed look at the conditions in April, you can check San Marco weather in April.

December and May present distinctly different weather experiences. In December, temperatures range from a chilly -3°C (27°F) at night to a mild 15°C (60°F) during the day, with an average of 5°C (41°F). The month sees around 87 mm (3.4 in) of precipitation over 7 days, accompanied by high humidity at 85%. In contrast, May enjoys a warmer climate, with temperatures varying from a comfortable 7°C (45°F) to a hot 31°C (89°F), averaging at 18°C (65°F). Though it is wetter, with 131 mm (5.1 in) of rain over 16 days, the humidity is more manageable at 70%. For more details on the weather in May, you can visit San Marco weather in May.

December and June exhibit markedly different weather patterns. In December, temperatures hover between a chilly -3°C (27°F) and a mild 15°C (60°F), with an average of around 5°C (41°F). The month tends to be quite wet, experiencing about 87 mm (3.4 in) of precipitation across 7 days and maintaining high humidity levels of 85%. In stark contrast, June brings much warmer temperatures, ranging from a comfortable 12°C (54°F) at night to a scorching 38°C (100°F) during the day, with an average of 24°C (75°F). Precipitation in June is slightly lower at 72 mm (2.8 in) over 8 days, and humidity drops to a more pleasant 65%. For more details on June weather, visit San Marco weather in June.

December and July present starkly contrasting weather conditions. In December, temperatures range from a chilly -3°C (27°F) at night to a mild 15°C (60°F) during the day, with an average of 5°C (41°F). This winter month experiences higher humidity at 85% and sees about 87 mm (3.4 inches) of precipitation over approximately 7 days. In contrast, July boasts significantly warmer temperatures, with nighttime lows of 15°C (59°F) and daytime highs soaring up to 37°C (98°F), averaging around 25°C (78°F). Although July experiences slightly less precipitation at 77 mm (3.0 inches), it occurs over a longer period of about 10 days, accompanied by lower humidity levels of 61%. For a more detailed look at the July weather, check out San Marco weather in July.

December and August present stark contrasts in weather. December experiences chilly temperatures with a minimum of -3°C (27°F) and an average of 5°C (41°F), while August boasts much warmer conditions, starting at a minimum of 13°C (55°F) and averaging a comfortable 26°C (78°F). Precipitation levels are relatively close, with December receiving 87 mm (3.4 in) over about 7 days, compared to August’s 73 mm (2.9 in) spread over 8 days. Additionally, December's high humidity of 85% contrasts sharply with August's drier atmosphere at 54%. The seasonal differences highlight the varying climates of these two months, making each unique in its own right. For more about August weather specifics, check out San Marco weather in August.

In December, temperatures linger between a chilly -3°C (27°F) and a milder 15°C (60°F), with an average of 5°C (41°F). The month sees about 87 mm (3.4 in) of precipitation spread across 7 days, accompanied by a high humidity level of 85%. In contrast, September boasts significantly warmer weather, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 32°C (90°F) and an average of 20°C (69°F). Precipitation is slightly higher at 114 mm (4.5 in), occurring over 10 days, but the humidity is lower at 66%. Overall, September offers a much warmer and drier climate compared to the cold, damp conditions typical of December. For more insights, check out San Marco weather in September.

In comparing the weather between December and October, December tends to be significantly cooler, with average temperatures ranging from a minimum of -3°C (27°F) to a maximum of 15°C (60°F). In contrast, October sees much milder temperatures, with a minimum of 4°C (39°F) and a maximum of 27°C (80°F). Both months receive the same amount of precipitation, around 87 mm (3.4 in) over 7 days, but humidity levels are slightly higher in December at 85%, compared to 83% in October. For a more detailed look at the weather during October, you can visit San Marco weather in October.

December's weather features a cooler average temperature of 5°C (41°F), compared to November's milder 10°C (50°F). While both months experience a minimum temperature of -3°C (27°F), December's maximum peaks at 15°C (60°F), significantly lower than November's 21°C (69°F). Precipitation is also less in December, with 87 mm (3.4 in) over 7 days, whereas November sees 138 mm (5.4 in) over 11 days, indicating a wetter month. Both months have high humidity levels, with December at 85% and November slightly higher at 88%. For a detailed look at November weather, visit San Marco weather in November.

Compare San Marco's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in San Marco

As December wraps San Marco in a chill, the weather contrasts sharply with the milder months preceding it. With temperatures dipping to a maximum of 15°C and falling as low as -3°C, the crisp air is a reminder that winter is in full swing. This month also brings a significant increase in precipitation, totaling 87 mm over about 7 days, and a noticeable rise in humidity, sitting around 85%. The beauty of the town is enhanced by occasional winter outings, yet it's essential to prepare for the fluctuating conditions. For a deeper understanding of the climate throughout the year, visit San Marco Climate.