December Weather in Sulmona, Italy

Last updated: March 24, 2025

In Sulmona, Italy, December offers a compelling blend of winter charm and atmospheric conditions. With a maximum temperature reaching 14°C (57°F) and an average of 3°C (37°F), chilly but manageable conditions prevail, while lows can dip to a brisk -13°C (9°F). This month also sees significant precipitation, accumulating to 116 mm (4.6 in) across approximately 13 days, contributing to the region's lush landscapes. The air remains humid at an average of 84%, adding to the wintry feel. December in Sulmona is a beautifully moody start to winter, making it a unique destination for those seeking to experience Italian holiday magic amidst cooler climes.

December Temperature in Sulmona

In December, Sulmona, Italy, transitions into the heart of winter, showcasing a remarkable chill that sets the stage for the festive season. Temperatures typically range from a brisk -13°C (9°F) at night to a mild 14°C (57°F) during the day, with an average hovering around 3°C (37°F). This month sees a slight increase in warmth compared to the deeper winter months that precede it, yet the lingering cold creates a cozy atmosphere perfect for sipping hot beverages and enjoying seasonal delicacies. Visitors can expect to experience the enchanting charm of this historic town as it embraces the winter, offering a beautiful contrast of frosty air and warm hospitality.

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

The chart illustrates December temperature patterns in Sulmona, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec333739465463676859514437
Data source: Temperature data for Sulmona 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 Sulmona

In Sulmona, Italy, December typically brings a shift toward more significant precipitation, with an average of 116 mm (4.6 in) of rain over 13 days. This marks a notable increase compared to the drier summer months, as well as a striking contrast to the preceding month of November, which records an even higher total at 169 mm (6.7 in). As winter deepens, the landscape transforms under the weight of this moisture, revitalizing the region's lush scenery. December's rainfall contributes to the overall trend of the wetter months, with precipitation steadily rising from the drier days of July, emphasizing the region's Mediterranean climate and its seasonal variability.

December Precipitation Trends in Sulmona

The chart displays monthly precipitation patterns in Sulmona, 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.
JanFebMarAprMayJunJulAugSepOctNovDec97921059915188548094108169116
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sulmona

In Sulmona, Italy, December brings a return to winter's embrace, as humidity levels rise back to 84%, mirroring January's moisture content. This month's humidity marks a notable trend, with the year concluding on a high note after a gradual decline from the summer's lows of 53% in August. The atmospheric conditions shift significantly from late autumn's 81% in November, emphasizing the region's transition into the colder season. While spring and summer months enjoy drier air, autumn and winter showcase a tendency for increased humidity, creating that quintessential cozy atmosphere often sought after in December. Overall, this cyclical pattern highlights Sulmona's unique climatic rhythm, balancing between warmth and chill, wet and dry throughout the year.

December Average Humidity in Sulmona

This chart illustrates the average monthly humidity levels in Sulmona, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%76%69%70%70%61%57%53%65%75%82%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sulmona

In Sulmona, Italy, the UV Index experiences a notable decline as winter sets in, dropping to a low 2 in December. This marks a shift from the peak summer months, where values soar to a high of 11 in June, indicating extreme risk of harm from unprotected sun exposure. As the seasons transition, the exposure category changes dramatically; December's low index means a much safer burn time of 45 minutes, allowing for leisurely outdoor activities without the urgent need for sun protection. This trend highlights the importance of adjusting sun safety measures throughout the year. For more detailed insights into the UV Index across the seasons, visit Sulmona UV Index.

Maximum UV Index Levels in Sulmona for December

The chart shows the monthly maximum UV Index (UVI) for Sulmona 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.
JanFebMarAprMayJunJulAugSepOctNovDec346891110108642
Data source: Sulmona 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 Sulmona

As December settles in Sulmona, Italy, the town basks in a gentle glow of 231 hours of sunshine, slightly less than the vibrant autumn days of November. This dip marks the transition from the robust daylight of earlier months, where June peaked at an impressive 411 hours, signaling the height of summer joy. The gradual decline in sunlight is a familiar rhythm, weaving through the year with January offering only 182 hours, while February hints at a brighter future with 241 hours. Despite December's cooler embrace, the lingering sunshine still invites leisurely strolls through its charming cobblestone streets, showcasing the beauty of a winter landscape illuminated by the soft light of the season. Thus, even in the depths of winter, Sulmona often reminds us that sunshine, albeit reduced, continues to warm the heart and soul.

Monthly Sunshine Duration in Sulmona: December Highlighted

The December sunshine duration represents the total number of hours Sulmona 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.
JanFebMarAprMayJunJulAugSepOctNovDec182h241h305h342h377h411h427h396h329h300h222h231h
Data source: Sulmona December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sulmona During December

In December, Sulmona, Italy experiences a moderate likelihood of sunny weather, with a 32% chance of sunshine gracing the city's picturesque landscapes. As the year winds down, the chance of sunny days dips from the summer highs of 66% in July and 64% in August, revealing a distinct seasonal shift. This decrease is evident as November peaks at just 18%, marking the transition to winter. However, December's 32% reflects a notable improvement compared to the preceding months, suggesting that while the days may be shorter and temperatures cooler, there is still a decent opportunity to bask in the winter sun. This balance of light amid the chill invites both residents and visitors to savor the beauty of Sulmona in this tranquil month.

Percentage of Sunny Days in December in Sulmona

The chart illustrates the percentage of sunny days in Sulmona 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 Sulmona experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec24%48%46%32%45%53%66%64%45%25%18%32%
Data source: Sulmona December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sulmona in December

In Sulmona, Italy, December marks a return to shorter days, with daylight lasting just 9 hours, consistent with the similar duration experienced in November. This reduction follows a steady increase in daylight through the spring and summer months, peaking at 15 hours in June. As the year progresses, daylight gradually diminishes; by August, it decreases to 13 hours, and from there, a subtle decline leads into the tranquil winters of November and December. This pattern highlights the seasonal rhythm of light in Sulmona, offering a cozy atmosphere perfect for the festive month of December, even as daylight wanes.

Average Daylight Hours in Sulmona for December

The chart illustrates the variation in daylight duration in Sulmona throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 30m10h 35m11h 57m13h 22m14h 33m15h 9m14h 50m13h 47m12h 26m11h 2m9h 48m9h 10m
Data source: Sulmona daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Sulmona

In December, the winds in Sulmona, Italy pick up slightly, averaging 1.7 m/s (4 mph), mirroring the breezy conditions of January and May. This seasonal shift stands out against the calmer months leading up to winter, where wind speeds remain at a gentle 1.2 to 1.5 m/s. Interestingly, while summer months experience even lighter breezes, the return to a brisker wind in December sets a vibrant backdrop for the festive season. As the year draws to a close, residents and visitors alike can savor the invigorating winds, enhancing the charm of this historic town nestled in the Apennines.

Average December Wind Speed in Sulmona

The chart displays monthly wind speed patterns in Sulmona, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.71.51.41.41.71.31.41.31.21.41.41.7 m/s
Data source: Sulmona December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Sulmona Compares to Other Months

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

In December, temperatures in Sulmona range from a minimum of -13°C (9°F) to a maximum of 14°C (57°F), with an average temperature of 3°C (37°F). The month sees significant precipitation, totaling 116 mm (4.6 in) over approximately 13 days, while humidity remains high at 84%.

By contrast, January experiences colder temperatures, with a minimum of -19°C (-3°F) and an average temperature of 0°C (33°F), peaking at 16°C (61°F). Precipitation is slightly lower at 97 mm (3.8 in) and occurs over 12 days, while humidity remains consistent at 84%. For more details, you can explore Sulmona weather in January.

December and February present distinct variations in weather, despite their close proximity in the winter calendar. In December, temperatures can drop as low as -13°C (9°F), with an average temperature hovering around 3°C (37°F) and reaching a maximum of 14°C (57°F). The month also sees relatively high levels of precipitation at 116 mm (4.6 in) over about 13 days, coupled with a humidity level of 84%.

In contrast, February experiences slightly colder minimum temperatures at -15°C (5°F) but maintains a comparable average of 3°C (38°F) and slightly warmer maximums at 16°C (61°F). Precipitation in February is lower, with 92 mm (3.6 in) spread over 10 days, and humidity decreases to 76%. The reduced precipitation and humidity may make February feel a bit less oppressive than December. For more details on February's weather, you can visit Sulmona weather in February.

In December, Sulmona experiences a milder range of temperatures, with averages around 3°C (37°F) and maximums reaching up to 14°C (57°F), despite hitting lows of -13°C (9°F). The month is fairly wet, with a total precipitation of 116 mm (4.6 in) spread over 13 days and a high humidity of 84%. In contrast, March sees slightly lower minimum temperatures at -18°C (-1°F) and slightly higher maximums peaking at 18°C (65°F), with an average temperature of 4°C (40°F). Precipitation decreases to 104 mm (4.1 in) over 14 days, while humidity drops to 69%. Overall, while both months are characterized by cool temperatures and considerable precipitation, December is notably wetter and more humid than March. For more details, you can visit Sulmona weather in March.

December and April present contrasting weather patterns. In December, temperatures can dip as low as -13°C (9°F), with an average of around 3°C (37°F) and highs reaching up to 14°C (57°F). This month also sees significant precipitation, totaling 116 mm (4.6 inches) over approximately 13 days, and high humidity levels at 84%. In contrast, April brings milder conditions with minimum temperatures of -5°C (22°F) and averages around 8°C (47°F), peaking at 22°C (71°F). Precipitation is slightly lower in April at 99 mm (3.9 inches), but it occurs over about 14 days, and humidity decreases to 70%. For more detailed information about April weather in Sulmona, check out Sulmona weather in April.

In December, temperatures are typically colder, ranging from a minimum of -13°C (9°F) to a maximum of 14°C (57°F), with an average of around 3°C (37°F). The month sees significant precipitation at 116 mm (4.6 in) spread over 13 days, contributing to a high humidity level of 84%. In contrast, May brings warmer conditions, featuring temperatures that range from a minimum of -3°C (27°F) to a pleasant maximum of 26°C (79°F), with an average temperature of 12°C (54°F). Although May has slightly more precipitation at 151 mm (5.9 in) over 15 days, the overall humidity decreases to 70%. For more detailed information on the weather in May, you can check Sulmona weather in May.

December and June present strikingly different weather patterns. In December, temperatures range from a chilly -13°C (9°F) to a mild 14°C (57°F), with an average of 3°C (37°F). This month experiences significant precipitation, totaling 116 mm (4.6 in) over 13 days and high humidity at 84%. In contrast, June offers a much warmer climate, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 30°C (86°F), averaging 17°C (63°F). Precipitation in June is lower, at 88 mm (3.5 in) over the same number of days but with a much more comfortable humidity level of 61%. For more details on weather in June, you can check Sulmona weather in June.

In December, temperatures in Sulmona can drop to a frigid minimum of -13°C (9°F), with an average temperature of 3°C (37°F) and a maximum reaching 14°C (57°F). The month sees significant precipitation, with 116 mm (4.6 in) over approximately 13 days, contributing to a high humidity level of 84%. In contrast, July brings much milder weather, where temperatures range from a minimum of 7°C (45°F) to a maximum of 32°C (90°F), averaging around 19°C (67°F). Rainfall is noticeably less in July, with only 54 mm (2.1 in) over 8 days of precipitation and a lower humidity of 57%. This stark contrast highlights the seasonal variations, making December's cold and wet conditions quite different from July's warm and drier climate. For more specific insights about July, you can explore Sulmona weather in July.

December and August present stark contrasts in weather conditions. December features colder temperatures, with a minimum of -13°C (9°F) and an average of around 3°C (37°F), peaking at 14°C (57°F). It also sees significant precipitation, totaling 116 mm (4.6 in) over approximately 13 days, accompanied by high humidity levels of 84%. In contrast, August boasts much warmer temperatures, ranging from a minimum of 8°C (46°F) to a pleasant average of 20°C (68°F), with a maximum of 33°C (92°F). Precipitation is less frequent, totaling 80 mm (3.2 in) across 12 days, and humidity is notably lower at 53%. For more detailed information, check out Sulmona weather in August.

December and September present notably different weather conditions. In December, temperatures can plummet to a minimum of -13°C (9°F), with an average of around 3°C (37°F) and a maximum reaching up to 14°C (57°F). The month is characterized by higher precipitation, totaling 116 mm (4.6 in) over 13 days, along with increased humidity at 84%.

In contrast, September offers milder conditions with a minimum temperature of 2°C (37°F), an average of 15°C (60°F), and a pleasant maximum of 27°C (82°F). Precipitation is lower in September at 94 mm (3.7 in) over 11 days, and the humidity is a more comfortable 65%. For a detailed look at weather patterns, you can check Sulmona weather in September.

December weather in Sulmona is significantly colder compared to October, with temperatures ranging from a minimum of -13°C (9°F) to a maximum of 14°C (57°F) and an average of 3°C (37°F). In contrast, October enjoys much milder conditions, featuring temperatures that range from 0°C (33°F) to 23°C (74°F) and an average of 11°C (52°F). While December has a higher humidity level at 84%, October's humidity is relatively lower at 75%. Precipitation is also slightly more frequent in December, occurring over 13 days, compared to 12 days in October, with each month seeing similar levels of rainfall—116 mm (4.6 in) in December and 108 mm (4.3 in) in October. For more details on the October climate, you can check Sulmona weather in October.

December weather in Sulmona is characterized by colder temperatures compared to November, with minimums dropping to -13°C (9°F) and an average temperature of 3°C (37°F). In comparison, November shows milder temperatures, with a minimum of -6°C (22°F) and an average of 7°C (45°F). Precipitation levels in December are slightly lower at 116 mm (4.6 in) over 13 days, while November experiences more rainfall at 169 mm (6.7 in) across 15 days. Additionally, December sees a slightly higher humidity level of 84%, compared to November’s 81%. For more details, you can check Sulmona weather in November.

Compare Sulmona's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Sulmona

As December blankets Sulmona with its chill, the weather shifts notably from the milder months preceding it. The sharp drop in temperatures provides a distinctive wintery atmosphere, where average highs barely touch 14°C, showcasing a significant contrast to the warmer days of autumn. The increased humidity of 84% coupled with 116 mm of precipitation over 13 days makes for a damp and chilly month, encouraging cozy indoor activities and festive preparations. Yet, amid this winter landscape, Sulmona’s charm remains inviting, inviting visitors to experience its unique seasonal beauty. For a more detailed look into the weather variations throughout the year, visit Sulmona Climate.