December Weather in San Martino, Italy

Last updated: March 24, 2025

In San Martino, Italy, December ushers in a chill, with temperatures ranging from a maximum of 16°C (62°F) to a minimum of -4°C (24°F), settling around an average of 5°C (41°F). Visitors can expect a mix of cool breezes and occasional rainfall, as 108 mm (4.2 in) of precipitation typically falls over 10 days throughout the month. The high humidity level of 85% can amplify the cold, emphasizing the need for warm attire while exploring this picturesque destination during the festive season.

December Temperature in San Martino

In December, San Martino, Italy, experiences a notable transition into winter, with temperatures reflecting the chill of the season. The minimum temperature dips to -4°C (24°F), marking a shift from the milder late autumn. Despite this drop, the average temperature remains a crisp 5°C (41°F), while daytime highs can reach a comfortable 16°C (62°F). This pattern indicates a gradual cooling trend consistent with the preceding months, emphasizing the onset of winter while still allowing for surprisingly mild afternoons. As the year comes to a close, the village's charming landscape is often adorned with a delicate blanket of frost, inviting both residents and visitors to embrace the season's serene beauty.

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

The chart illustrates December temperature patterns in San Martino, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec404548546169737467584941
Data source: Temperature data for San Martino 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 Martino

In December, San Martino experiences a noteworthy precipitation pattern, with an average of 108 mm (4.2 in) of rain over 10 days. This marks a significant dip compared to November’s heavy 205 mm (8.1 in) spread across 14 days, highlighting the transition into the winter season. The precipitation in December is more manageable, reminiscent of the somewhat lower figures from earlier months like June and August. This month not only showcases the region's characteristic winter rains but also acts as a bridge, linking the previous month's abundant downpours to the drier winter months ahead. The relatively stable precipitation amounts throughout the fall suggest a consistent climate that keeps the landscape lush, setting the stage for a picturesque Italian winter.

December Precipitation Trends in San Martino

The chart displays monthly precipitation patterns in San Martino, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6264818510654734579165205108
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Martino

In December, San Martino, Italy, experiences a humidity level of 85%, marking a slight decline from the elevated 88% of the previous two months. This month's humidity often reflects the onset of winter, as moisture in the air remains relatively high compared to the mid-year months. The trend throughout the year shows a gradual decrease from 88% in January to a low of 64% in August, before rising again in the fall. With a notable increase in October and November, December's slight dip suggests a transition as the colder months take hold, setting the stage for a winter enveloped in a blanket of crisp, damp air.

December Average Humidity in San Martino

This chart illustrates the average monthly humidity levels in San Martino, 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.
JanFebMarAprMayJunJulAugSepOctNovDec88%81%76%77%74%71%67%64%74%87%88%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Martino

In December, San Martino experiences a low UV Index of 2, indicating a gentler sun compared to the previous months. This allows residents and visitors to enjoy outdoor activities with a burn time of 45 minutes before significant sun damage occurs. The UV Index trends show a marked increase in exposure from January to May, where it peaks at a very high level of 9 during the summer months. As autumn sets in, the UV Index gently declines, returning to lower levels by December. This seasonal fluctuation highlights the importance of sun protection in high UV months, while also offering a safer space for winter outdoor enjoyment. To explore more about the UV levels throughout the year, check out the comprehensive guide here: San Martino UV Index.

Maximum UV Index Levels in San Martino for December

The chart shows the monthly maximum UV Index (UVI) for San Martino 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.
JanFebMarAprMayJunJulAugSepOctNovDec236789987532
Data source: San Martino 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 Martino

In San Martino, Italy, December greets the winter season with a modest 223 hours of sunshine, marking a gentle decline from the vibrant late autumn glow. As the year transitions, sunlight peaks during the summer months, notably in July with 422 hours, before gradually receding through the fall. Despite December's shorter days, the sun still manages to shine brightly, illuminating the charming streets and festive ambiance of the town. This gradual ebb in daylight reflects a natural cycle, where the warmth of summer gives way to the intimate coziness of winter, inviting both locals and visitors to savor the enchanting beauty of the season.

Monthly Sunshine Duration in San Martino: December Highlighted

The December sunshine duration represents the total number of hours San Martino 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.
JanFebMarAprMayJunJulAugSepOctNovDec187h227h306h339h387h405h422h393h337h290h217h223h
Data source: San Martino December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Martino During December

When considering the likelihood of sunny weather in December in San Martino, Italy, you can expect a somewhat optimistic outlook with a 48% chance of sunshine. This places December in the somewhat favorable range, especially when compared to the preceding months. After November's lower 34% chance, the slight uptick in December indicates a transition from the gloom of late autumn to the more promising winter days. Overall, while not the sunniest month of the year, December does present opportunities for clear skies, aligning closely with the chances seen in June and July, which hover around the 46% mark. So if you're planning a visit, keep your fingers crossed for some of that delightful winter sunshine!

Percentage of Sunny Days in December in San Martino

The chart illustrates the percentage of sunny days in San Martino 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 Martino experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec36%41%58%46%40%45%46%55%45%50%34%48%
Data source: San Martino December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Martino in December

In San Martino, Italy, the daylight duration experiences a notable ebb and flow throughout the year, peaking during the summer months and dipping significantly as winter approaches. Beginning with nine hours of daylight in January, the days gradually lengthen until reaching a delightful fifteen hours in both June and July. However, as autumn settles in, daylight begins to wane, with August falling to thirteen hours and September trimming it back further to twelve hours. By the time December arrives, residents find themselves with just eight hours of daylight, marking the year's lowest point. This rhythmic cycle not only shapes daily lives but also reflects the enchanting transition of seasons that characterizes this picturesque Italian locale.

Average Daylight Hours in San Martino for December

The chart illustrates the variation in daylight duration in San Martino throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 14m10h 26m11h 56m13h 29m14h 49m15h 29m15h 8m13h 57m12h 28m10h 55m9h 34m8h 51m
Data source: San Martino daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in San Martino

In December, the winds of San Martino settle into a gentle rhythm, with an average speed of 2.2 m/s (5 mph). This marks a notable drop from the brisk gusts of November, which danced through the town at 3.0 m/s (7 mph). As the year draws to a close, the winds mirror the overall trend of the seasons—starting boldly in the earlier months with April’s 2.8 m/s and diminishing steadily to the quietude of late autumn. With December's winds whispering softly through the picturesque landscapes, there's a distinct contrast to the lively breezes of summer and fall, inviting both reflection and tranquility as the new year approaches.

Average December Wind Speed in San Martino

The chart displays monthly wind speed patterns in San Martino, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.32.62.82.52.22.12.32.02.63.02.2 m/s
Data source: San Martino December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in San Martino Compares to Other Months

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

In comparing the weather between December and January, December experiences milder temperatures, with a minimum of -4°C (24°F) and a maximum of 16°C (62°F), while January tends to be slightly colder, with a minimum of -8°C (17°F) and a maximum of 15°C (60°F). Both months share an average temperature of around 5°C (41°F). December is wetter, receiving 108 mm (4.2 in) of precipitation over 10 days compared to 62 mm (2.4 in) over just 6 days in January. Additionally, January has a higher humidity level at 88%, compared to December's 85%. For more detailed insights, you might find San Martino weather in January helpful.

December's weather tends to be colder and wetter compared to February. With temperatures ranging from a minimum of -4°C (24°F) to a maximum of 16°C (62°F), December experiences an average of 5°C (41°F) and sees significant precipitation of 108 mm (4.2 in) over 10 days, accompanied by high humidity levels at 85%. In contrast, February offers slightly milder conditions, with temperatures from -7°C (20°F) to 18°C (65°F) and an average of 7°C (45°F). Additionally, February has less precipitation at 64 mm (2.5 in) across 9 days, and the humidity is a bit lower at 81%. For more specifics on February weather in San Martino, you can check out San Martino weather in February.

December and March exhibit notable differences in weather patterns. In December, temperatures range from a chilly -4°C (24°F) to a mild maximum of 16°C (62°F), with an average of 5°C (41°F). This month sees precipitation totaling 108 mm (4.2 in) over 10 days and has a high humidity level of 85%. In contrast, March experiences a slightly broader temperature range, with minimums of -6°C (21°F) and maximums reaching 21°C (70°F), averaging 9°C (48°F). Precipitation in March is lower at 81 mm (3.2 in) over just 9 days, with a humidity of 76%. For more detailed information, you can check San Martino weather in March.

December and April showcase contrasting weather patterns. In December, temperatures range from a chilly -4°C (24°F) to a milder 16°C (62°F), with an average of 5°C (41°F). The month experiences considerable precipitation, totaling 108 mm (4.2 in) over about 10 days, alongside high humidity levels of 85%. In contrast, April brings a more temperate climate, with minimum temperatures at 0°C (33°F) and maximums reaching 25°C (77°F), averaging 12°C (54°F). Precipitation in April is lighter at 85 mm (3.4 in) over 9 days, and humidity drops to a more comfortable 77%. For more details on the spring weather, check San Martino weather in April.

December and May present notably different weather conditions. In December, temperatures range from a chilly -4°C (24°F) at night to a mild 16°C (62°F) during the day, with an average of about 5°C (41°F). The month sees significant precipitation, measuring around 108 mm (4.2 in) over approximately 10 days, accompanied by high humidity levels at 85%. In contrast, May offers a much warmer climate, with minimum temperatures starting at 5°C (41°F) and peaking at 29°C (85°F), averaging 16°C (61°F). Precipitation is similar at 106 mm (4.2 in), but it occurs over 14 days, and humidity drops to a more comfortable 74%. For more details on May weather in this region, check San Martino weather in May.

December and June present markedly different weather patterns. In December, temperatures can dip as low as -4°C (24°F), with an average of 5°C (41°F) and highs reaching 16°C (62°F). The month is characterized by high humidity at 85% and significant precipitation of 108 mm (4.2 in) over about 10 days. In contrast, June boasts much warmer conditions, with temperatures ranging from a minimum of 12°C (55°F) to a scorching maximum of 35°C (96°F), averaging 21°C (69°F). In June, rainfall is less frequent, amounting to just 54 mm (2.1 in) across 9 days, and humidity drops to 71%. For more details, you can check San Martino weather in June.

December and July present stark contrasts in weather conditions. December features cooler temperatures, with a minimum of -4°C (24°F) and an average of 5°C (41°F), while July enjoys much warmer weather, boasting a minimum of 14°C (58°F) and an average of 23°C (73°F). Precipitation levels also differ, with December receiving 108 mm (4.2 in) over about 10 days, compared to July's 73 mm (2.9 in) spread across 9 days. Additionally, humidity is higher in December at 85%, whereas July holds a more comfortable level of 67%. For those interested in more details, you can check San Martino weather in July.

December weather contrasts sharply with August conditions. In December, temperatures can dip to a chilly minimum of -4°C (24°F), with an average of 5°C (41°F) and a maximum reaching 16°C (62°F). The month is marked by significant precipitation, averaging 108 mm (4.2 in) over about 10 days, coupled with high humidity at 85%. In stark comparison, August enjoys milder weather, with temperatures ranging from a minimum of 13°C (56°F) to an average of 23°C (74°F) and peaking at 32°C (90°F). Precipitation is much lighter in August, totaling 45 mm (1.8 in) across approximately 8 days, and humidity levels are more comfortable at 64%. For more specifics on the summer conditions, you can check San Martino weather in August.

December weather is notably colder than September, with average temperatures ranging from a chilly -4°C (24°F) at night to a maximum of 16°C (62°F) during the day. In contrast, September enjoys a more temperate climate, where temperatures can reach as high as 30°C (86°F) and rarely drop below 8°C (47°F). The precipitation levels in December also highlight its wetness, with 108 mm (4.2 in) falling over about 10 days, compared to September's 79 mm (3.1 in) across 9 days. Additionally, the humidity in December is higher, averaging around 85%, compared to 74% in September. For more detailed comparisons, you can refer to San Martino weather in September.

In comparing the weather between December and October, a noticeable shift in temperatures and precipitation patterns emerges. December experiences colder temperatures, with averages ranging from a minimum of -4°C (24°F) to a maximum of 16°C (62°F), while October enjoys milder conditions, with averages from 5°C (42°F) to 25°C (77°F). Additionally, October has higher precipitation levels, totaling 165 mm (6.5 in) over 11 days, compared to December's 108 mm (4.2 in) over 10 days. Humidity remains relatively consistent, with December at 85% and October slightly higher at 87%. For more details on October's weather, visit San Martino weather in October.

Comparing December and November weather reveals some notable differences. While December experiences colder temperatures with a minimum of -4°C (24°F) and an average of 5°C (41°F), November remains milder, with its minimum temperature at 0°C (32°F) and an average of 9°C (49°F). Additionally, December has less precipitation, totaling 108 mm (4.2 in) over about 10 days, compared to November's 205 mm (8.1 in) over 14 days, making it a drier month overall. Humidity levels are slightly lower in December at 85%, compared to November's 88%. For a closer look at November's weather, you can visit San Martino weather in November.

Compare San Martino's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in San Martino

As winter sets in, December in San Martino presents a noticeable shift in weather patterns compared to the milder months that precede it. Daytime temperatures hover around a cooler average, making outdoor activities a bit crispier, while nights can drop significantly into freezing territory. The increase in precipitation, with frequent rainy days, adds to the season's chill but also nurtures the lush landscapes characteristic of this region. With an average humidity of 85%, the air feels particularly moist, emphasizing the difference in comfort levels from the drier months of summer. For a detailed breakdown of how the weather evolves throughout the year, visit San Martino Climate.