Last updated: March 24, 2025
Experience the unique December weather of San Marino, Italy, where temperatures create a captivating winter atmosphere. The month typically sees a maximum of 17°C (62°F) and an average of 6°C (42°F), with lows plunging to a chilly -4°C (24°F). This combination offers a refreshing escape, perfect for exploring the historic charm of this enclave. Additionally, 67 mm (2.7 in) of precipitation falls over an average of 10 days, contributing to a humidity level of 85%, which enhances the foggy, mystical ambiance. Whether you're admiring the scenic views or delving into local culture, December's weather is sure to leave a lasting impression.
In December, San Marino greets the winter season with cool temperatures that hint at the chill of January. With nighttime lows dipping to -4°C (24°F), residents wrap themselves in warm layers. The average daily temperature hovers around 6°C (42°F), offering a briskness that encourages cozy gatherings. As the days progress, highs can reach up to 17°C (62°F), providing a pleasant break from the colder nights. This month marks the transition from autumn's crispness to winter's embrace, with temperatures reflecting a steady descent from the milder conditions seen in the fall. Overall, December in San Marino beautifully balances the cold and warmth, inviting both locals and visitors to savor the festive spirit while enjoying the crisp air.
In December, San Marino experiences a notable shift as the year draws to a close, with an average precipitation of 67 mm (2.7 in) over about 10 days of rain. This marks a decline from the preceding month, which recorded a heftier 109 mm (4.3 in) across 11 wet days. The trend suggests a gradual tapering off of rainfall as winter settles in, following a wetter autumn. With precipitation levels lower in December than in November, residents can expect a mix of crisp winter air and occasional showers, contributing to the region's serene beauty during this festive season. Overall, the weather patterns indicate a transition toward drier conditions, aligning with typical Mediterranean winters.
December in San Marino, Italy, marks a transition as the year draws to a close, bringing with it a humidity level of 85%. This is slightly lower than the peak of 88% seen in November, yet still considerably high, echoing the trend of increased moisture in the colder months. From the earlier summer lows of 54% in August, the humidity steadily climbs, reflecting the shift in seasons. As winter establishes itself, the rising humidity reinforces the chill in the air, setting the stage for cozy evenings and festive celebrations amidst a backdrop of crisp, moist air typical of the December landscape. Overall, the data indicates a notable fluctuation, with winter's embrace bringing back the dampness experienced at the year's outset.
In December, San Marino experiences a low UV Index of 2, suggesting that sunburn risk is minimal with a burn time of 45 minutes. This marks a shift from the high and very high indices seen in the summer months. The trend of decreasing UV levels from the scorching highs of July and August, both at 9, indicates a welcome relief as winter approaches. The steady decline through the fall months, culminating in December's low exposure category, makes this a favorable time for outdoor activities without the worry of significant UV risk. For more information on UV exposure throughout the year, visit the San Marino UV Index.
UV Risk Categories
December in San Marino embraces the gentle transition to winter, offering a cozy 218 hours of sunlight. As the year draws to a close, daylight gradually diminishes from the sunniest months of June and July, which boast over 420 hours of bright, energizing light. However, December still holds its charm, making it a perfect time for quaint strolls through its historic streets, as the festive atmosphere glimmers against the backdrop of shorter days. The sunlight may be waning, but the increasing hours from the previous months, particularly the crisp clarity of November's 220 hours, hint at the promise of brighter days ahead as the year prepares to turn. The cyclical nature of sunshine in San Marino adds a rhythm to life in this enchanting setting, weaving together seasons and memories.
In San Marino, December holds a 44% chance of sunny weather, a modest likelihood that reflects the city's transition into winter. As the year progresses, we see a notable trend: while early winter months like November dip to just 29%, the probability of sunshine re-emerges in December, aligning closely with the early months of the year like January and February, which record 38% and 44% respectively. The sunny weather probabilities peak dramatically in the spring and summer months, reaching as high as 69% in March and maintaining an impressive 62% in August, creating a striking contrast with December’s chill. Thus, while December does not promise abundant sunshine, the slight uptick from the prior month brings a flicker of hope for those yearning for brighter days amidst the winter gloom.
In San Marino, December marks the culmination of the gradual decrease in daylight as the year winds down. With only 8 hours of daylight, the sun casts a softer glow over the historic towers and rolling hills, contrasting starkly with the bright 15 hours enjoyed during the peak of summer in June and July. This transition from longer days in May and June to shorter winter afternoons creates a gentle rhythm, inviting residents and visitors alike to embrace the coziness of the season. As daylight dwindles, it's a perfect time to enjoy the charm of San Marino’s festive atmosphere, underscoring the beauty of its landscapes and architecture during the quieter, darker months.
As December arrives in San Marino, the winds tend to calm, ushering in a serene end to the year. With an average wind speed of just 1.7 m/s (4 mph), it marks the lowest point of the annual cycle, reflecting a gradual decline from the breezier months of spring and early summer. While January to November saw a steady average ranging between 2.1 and 2.9 m/s, December provides a tranquil contrast, offering residents and visitors a peaceful climate perfect for exploring the quaint streets and stunning vistas. This subtle shift not only highlights the region's seasonal charm but also invites a cozy, reflective atmosphere as the festive season unfolds.
The weather in San Marino 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 Marino and find detailed weather information for every month.
December typically presents milder temperatures compared to January, with average highs reaching 17°C (62°F) and lows around -4°C (24°F). In contrast, January's temperatures dip slightly, with an average maximum of 15°C (60°F) and a minimum of -6°C (21°F). Additionally, December experiences more precipitation, totaling 67 mm (2.7 in) over 10 days, whereas January sees a much reduced 23 mm (0.9 in) across just 4 days. Humidity levels remain relatively similar, hovering around 85% in December and slightly increasing to 87% in January. For more detailed insights on the January weather in San Marino, you can check out San Marino weather in January.
In December, temperatures in San Marino typically range from a minimum of -4°C (24°F) to a maximum of 17°C (62°F), with an average temperature of 6°C (42°F). The month experiences 67 mm (2.7 in) of precipitation over roughly 10 days, and humidity levels are quite high at 85%. In contrast, February sees a slight drop in minimum temperatures to -9°C (16°F) and a maximum of 21°C (70°F), with an average of 7°C (45°F). Precipitation increases slightly to 73 mm (2.9 in) over 9 days, but humidity is a bit lower at 79%. Overall, February tends to be slightly warmer and drier than December. For more detailed information, you can check San Marino weather in February.
December and March showcase distinct weather patterns, reflecting the transition from winter to spring. In December, temperatures range from a chilly -4°C (24°F) at night to a milder 17°C (62°F) during the day, with an average of 6°C (42°F). This month also experiences higher humidity at 85% and more frequent precipitation, totaling 67 mm (2.7 in) over 10 days. Conversely, March is generally warmer, with nighttime lows of -11°C (12°F) and daytime highs reaching 25°C (77°F), resulting in a pleasant average of 10°C (50°F). Precipitation in March is lower at 46 mm (1.8 in) and occurs over just 7 days, with reduced humidity at 69%. For more detailed information, you can read San Marino weather in March.
December and April present contrasting weather patterns. In December, temperatures can dip to a minimum of -4°C (24°F) and average around 6°C (42°F), with a maximum of 17°C (62°F). The month experiences significant humidity at 85% and sees precipitation on about 10 days, totaling 67 mm (2.7 in). In stark contrast, April brings a more temperate climate with minimum temperatures rising to -1°C (30°F) and an average temperature of 14°C (58°F), peaking at 28°C (82°F). Precipitation decreases to 55 mm (2.2 in) over 8 days, and humidity levels drop to 71%. For a more detailed look at April weather specifics, visit San Marino weather in April.
December and May present starkly different weather conditions. In December, temperatures range from a chilly -4°C (24°F) at their lowest to a mild 17°C (62°F) at their highest, with an average of 6°C (42°F). The month experiences about 67 mm (2.7 in) of precipitation over approximately 10 days and high humidity levels at 85%. In contrast, May shows a significant rise in temperatures, with lows around 6°C (44°F) and highs soaring to 33°C (91°F), averaging 19°C (66°F). It's also a wetter month, with 100 mm (3.9 in) of precipitation spread across 14 days and relatively lower humidity at 70%. For more details, you can check San Marino weather in May.
December and June present contrasting weather patterns in terms of temperature and precipitation. In December, temperatures range from a chilly minimum of -4°C (24°F) to a mild maximum of 17°C (62°F), with an average of 6°C (42°F). The month experiences higher humidity at 85% and a total precipitation of 67 mm (2.7 in) over about 10 days. In stark contrast, June boasts significantly warmer temperatures, with a minimum of 12°C (54°F) and a maximum soaring to 40°C (104°F), while the average reaches a comfortable 25°C (76°F). Precipitation in June decreases to 43 mm (1.7 in) over just 7 days, and humidity drops to 65%. For more detailed information, you can check San Marino weather in June.
December and July present contrasting weather patterns. In December, temperatures can dip as low as -4°C (24°F), with an average of 6°C (42°F) and a maximum reaching 17°C (62°F). The month experiences about 67 mm (2.7 in) of precipitation spread over 10 days, coupled with high humidity levels at 85%. In stark contrast, July boasts a much milder temperature range, with a minimum of 16°C (61°F), an average of 26°C (80°F), and scorching highs of 38°C (101°F). Precipitation remains relatively similar at 68 mm (2.7 in), but occurs over just 8 days, and with lower humidity at 61%. For more details on July conditions, you can visit San Marino weather in July.
When comparing the weather in December and August, the differences are striking. In December, temperatures range from a chilly -4°C (24°F) at night to a mild 17°C (62°F) during the day, with an average of 6°C (42°F). The month experiences about 67 mm (2.7 in) of precipitation over approximately 10 days, coupled with high humidity levels at around 85%. In contrast, August boasts much warmer conditions, with temperatures varying from a minimum of 13°C (55°F) to a soaring maximum of 41°C (106°F) and an average of 26°C (80°F). August is generally drier, with only 48 mm (1.9 in) of rain over 7 days and a lower humidity of 54%. For more details on the specific weather patterns in August, you can visit San Marino weather in August.
December and September exhibit stark contrasts in weather conditions. In December, temperatures range from a chilly -4°C (24°F) at night to a mild high of 17°C (62°F) during the day, while the month is marked by high humidity at 85% and an average precipitation of 67 mm (2.7 in) over approximately 10 days. In contrast, September boasts a much warmer climate, with minimum temperatures at 7°C (45°F) and maximums soaring to 34°C (94°F), offering an average of 21°C (70°F). The slightly higher precipitation of 84 mm (3.3 in) over the same number of rainy days, paired with lower humidity at 66%, contributes to a distinctly different atmosphere. For more details about September weather, you can check out San Marino weather in September.
When comparing the weather in December and October, it's clear that December is significantly cooler. The average temperature in December hovers around 6°C (42°F), with nighttime lows dropping to -4°C (24°F), while October enjoys a milder average of 16°C (60°F) and highs reaching up to 28°C (82°F). October also experiences slightly less precipitation, totaling 61 mm (2.4 in) over 8 days, compared to December's 67 mm (2.7 in) across 10 days. Humidity levels are quite similar, with December at 85% and October at 83%. For a closer look at the conditions in October, you can check San Marino weather in October.
In comparing the weather of December and November, December typically experiences cooler temperatures, with a minimum of -4°C (24°F) and an average of 6°C (42°F), compared to November’s slightly milder temperatures that range from a minimum of -2°C (29°F) and an average of 11°C (51°F). Additionally, while December sees around 67 mm (2.7 in) of precipitation over about 10 days, November has higher precipitation levels at 109 mm (4.3 in) across 11 days. Humidity remains relatively high in both months, with December at 85% and November slightly higher at 88%. For a detailed look at November's weather, you can visit San Marino weather in November.
As December settles over San Marino, the weather takes on a distinct chill compared to earlier months, showcasing a notable shift in temperatures and increased humidity. With average temperatures lingering around 6°C (42°F), it's a time when the vibrant fall colors fade and the landscape transforms into a serene winter scene. Sweater weather becomes the norm, especially with minimum lows dipping to -4°C (24°F) on cooler nights. Precipitation, while not excessive, can make its presence felt with around 10 days of rainfall, adding a splash of moisture to the crisp air. With a humidity level hovering at a notable 85%, December in San Marino invites visitors to embrace its chilly charm, making it a unique experience in contrast to the milder months preceding it. For a deeper understanding of the climate patterns, check out San Marino Climate.