December Weather in Nettuno, Italy

Last updated: March 24, 2025

December in Nettuno, Italy brings a cool and moist climate, with maximum temperatures reaching a comfortable 18°C (64°F) and averaging around 11°C (52°F). As winter settles in, minimum temperatures can dip to 4°C (39°F). This month is characterized by significant precipitation, totaling 171 mm (6.7 in) over approximately 15 days, contributing to a humidity level of 84%. Visitors can expect a blend of brisk air and frequent showers, making it an ideal time for cozy indoor activities and enjoying the festive atmosphere.

December Temperature in Nettuno

As December sweeps into Nettuno, Italy, a noticeable chill begins to settle in the air, with temperatures typically ranging from a minimum of 4°C (39°F) to a maximum of 18°C (64°F). The month sees an average temperature of 11°C (52°F), a slight drop from the milder conditions of autumn. This seasonal shift is characterized by a transition from the warmer, sun-kissed days of summer to the crisp, refreshing feel of winter. December’s temperatures reflect a trend towards cooler weather, making it the perfect time to embrace cozy indoor activities and festive celebrations, while the stunning coastal views provide a picturesque backdrop to the season's charm.

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

The chart illustrates December temperature patterns in Nettuno, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec495153576472777872655952
Data source: Temperature data for Nettuno 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 Nettuno

In December, Nettuno, Italy experiences a notable increase in precipitation, with a significant total of 171 mm (6.7 in) over 15 days of rain, making it one of the wetter months of the year. This trend continues from November, which recorded an even higher 217 mm (8.6 in) during 17 days of rainfall, but December's precipitation rate maintains its prominence. As winter approaches, this pattern reflects a shift from the dry summer months, with June and July consistently showing the lowest measurements at just 29 mm (1.2 in) and 23 mm (0.9 in) respectively. The substantial rainfall in December and November suggests a transition toward cooler, wetter conditions typical of the season, providing much-needed moisture to the local ecosystem as the year comes to a close.

December Precipitation Trends in Nettuno

The chart displays monthly precipitation patterns in Nettuno, 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.
JanFebMarAprMayJunJulAugSepOctNovDec839084586729231596106217171
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Nettuno

As the year draws to a close, December in Nettuno, Italy, brings a return to high humidity levels, matching January at a notable 84%. This month marks a stark contrast to the summer's drier conditions, where humidity dips to its lowest point in August at just 53%. The trend reveals a gradual rise in humidity from the summer months, peaking again in the winter as cooler temperatures set in. Notably, the autumn months of September and October register moderate humidity, but November's drop to 81% serves as a precursor to the winter resurgence. Overall, December's humidity signifies a cozy embrace of moisture, laying the groundwork for the chilly, damp months ahead.

December Average Humidity in Nettuno

This chart illustrates the average monthly humidity levels in Nettuno, 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 Nettuno

In Nettuno, Italy, the UV Index in December lowers to a gentle 2, placing it in the low exposure category. This translates to a more forgiving burn time of 45 minutes, allowing the community to enjoy outdoor activities with less concern about sunburn compared to the peak summer months, where the index soared to a dramatic 10. Over the year, there’s a noticeable trend of increasing UV levels from the moderate range in winter to very high levels in the summer, prompting a shift in sun safety practices. As we embrace the cooler, milder days of winter, it's a great time to be mindful yet enjoy the outdoors without the urgency of sun protection that summer brings. For more detailed insights, check out the Nettuno UV Index.

Maximum UV Index Levels in Nettuno for December

The chart shows the monthly maximum UV Index (UVI) for Nettuno 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.
JanFebMarAprMayJunJulAugSepOctNovDec34579101098642
Data source: Nettuno 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 Nettuno

In Nettuno, Italy, December brings a charming blend of daylight as the year draws to a close, with the sun shining for approximately 244 hours. While this marks a slight dip from November's 246 hours, it stands resilient amid the shorter winter days. Observing the broader trend, December's sunlight pales in comparison to the sunnier months of July and June, which bask in 430 and 415 hours respectively. As we journey through the year, the steady increase from January's 202 hours to a peak in May and June reflects Nettuno's glorious Mediterranean climate, a delightful contrast to the cozy, albeit dimmer, days of late autumn and winter. The softer sunlight of December encourages a reflective mood, inviting visitors to indulge in the tranquil beauty of this seaside gem.

Monthly Sunshine Duration in Nettuno: December Highlighted

The December sunshine duration represents the total number of hours Nettuno 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.
JanFebMarAprMayJunJulAugSepOctNovDec202h260h327h355h400h415h430h398h338h314h246h244h
Data source: Nettuno December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Nettuno During December

As December settles in Nettuno, Italy, the likelihood of enjoying sunny weather stands at 49%, highlighting a somewhat optimistic shift as the year draws to a close. This percentage is indicative of a gradual increase in sunshine compared to the more overcast months of November, which sees only a 34% chance. Notably, December's prospects mirror those of late spring, underscoring a winter season that offers promising glimpses of sunlight amid the cooler temperatures. While it may not boast the sun-drenched reliability of summer months like July and August, December’s moderate chances invite visitors to embrace the charm of a holiday season balanced with moments of brightness.

Percentage of Sunny Days in December in Nettuno

The chart illustrates the percentage of sunny days in Nettuno 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 Nettuno experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec37%56%59%46%49%58%72%76%54%42%34%49%
Data source: Nettuno December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Nettuno in December

In Nettuno, Italy, the rhythm of daylight follows a captivating seasonal dance. As December arrives, the city experiences a return to shorter days, with just 9 hours of daylight mirroring the twilight of November. This reflects a gradual decline from the sunniest months of June and May, where residents basked in 15 and 14 hours of daylight, respectively. The trend is clear: winter casts a shadow over the longer, brighter days of spring and summer. By March, as daylight begins to lengthen once again to 11 hours, the anticipation of spring and the revival of vibrant outdoor life grow. Meanwhile, the month of December invites a more introspective ambiance, encouraging cozy gatherings as the sun dips below the horizon earlier each evening.

Average Daylight Hours in Nettuno for December

The chart illustrates the variation in daylight duration in Nettuno throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 32m10h 36m11h 57m13h 20m14h 31m15h 6m14h 48m13h 45m12h 25m11h 3m9h 50m9h 13m
Data source: Nettuno daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Nettuno

As December unfolds in Nettuno, Italy, a gentle breeze dances through the coastal town, with an average wind speed of 3.6 m/s (8 mph)—a moderate yet refreshing gust that hints at the season's transition. While the wind often peaks during the brisk months of January and November at 4.0 m/s (9 mph), December brings a slight calm, with speeds tapering from the autumn highs. Interestingly, the wind tends to be lighter in the heart of summer, particularly in June, where it dips to a mere 2.3 m/s (5 mph), showcasing a significant contrast to both the winter and early spring months. This seasonal rhythm not only enriches the coastal experience but also fosters a unique charm in Nettuno, making it an ideal time for leisurely strolls along the shoreline, as the winter air invigorates the senses.

Average December Wind Speed in Nettuno

The chart displays monthly wind speed patterns in Nettuno, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.03.32.83.13.22.33.23.02.43.03.93.6 m/s
Data source: Nettuno December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Nettuno Compares to Other Months

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

December and January both feature mild temperatures, but January tends to be cooler overall. In December, average daily temperatures range from a minimum of 4°C to a maximum of 18°C, with precipitation totaling 171 mm over 15 days. In contrast, January experiences lower minimum temperatures, dropping to -1°C, while the average high is somewhat similar at 17°C. Precipitation decreases significantly to 83 mm across just 10 days, yet humidity remains constant at 84%. For more specific details on January weather, you can check Nettuno weather in January.

December and February exhibit distinct weather patterns despite their similar average temperatures. In December, temperatures range from a mild 4°C (39°F) to a maximum of 18°C (64°F), accompanied by significant precipitation totaling 171 mm (6.7 in) over 15 days, resulting in a high humidity level of 84%. In contrast, February experiences colder minimum temperatures, dropping to -4°C (25°F), but maintains the same maximum of 18°C (64°F) and an unchanged average of 11°C (51°F). Moreover, February sees less precipitation, totaling 90 mm (3.5 in) across 10 days, with lower humidity at 76%. For more specifics on February weather, you can check Nettuno weather in February.

In December, the weather tends to be milder with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 18°C (64°F) and an average of 11°C (52°F). The month also sees considerable rainfall, with 171 mm (6.7 in) of precipitation over approximately 15 days, resulting in a high humidity of 84%. In contrast, March experiences a wider temperature range, with lows dropping to -2°C (28°F) but reaching an average of 11°C (53°F) and highs of 19°C (67°F). The precipitation decreases significantly to 84 mm (3.3 in) over about 10 days, and humidity levels are lower at 69%. For more detailed insights into March weather, check out Nettuno weather in March.

In December, the weather tends to be cool and rainy, with average temperatures ranging from a minimum of 4°C (39°F) to a maximum of 18°C (64°F). This month sees significant precipitation, with about 171 mm (6.7 in) falling over 15 days, alongside high humidity levels at 84%. In contrast, April ushers in a milder climate, featuring warmer averages from a minimum of 5°C (41°F) to a pleasant maximum of 24°C (76°F). Precipitation decreases to 58 mm (2.3 in) over just 9 days, and humidity drops to a more comfortable 70%. For a more detailed look at the weather specifically in Nettuno during April, check out Nettuno weather in April.

December and May exhibit striking contrasts in weather. In December, temperatures range from a chilly 4°C (39°F) at night to a mild 18°C (64°F) during the day, accompanied by substantial precipitation of 171 mm (6.7 in) over approximately 15 days, contributing to high humidity levels at 84%. In contrast, May offers warmer conditions, with temperatures ranging from a minimum of 8°C (47°F) to a pleasant maximum of 29°C (85°F). The month experiences significantly less rainfall, totaling 67 mm (2.7 in) across about 10 days, and lower humidity levels at 70%. For more detailed insights on the weather in May, check out Nettuno weather in May.

December and June showcase a stark contrast in weather patterns. December experiences cooler temperatures, ranging from a minimum of 4°C (39°F) to a maximum of 18°C (64°F), with an average of 11°C (52°F). It's a wet month, recording about 171 mm (6.7 in) of precipitation over approximately 15 days, coupled with high humidity levels at 84%. In contrast, June boasts much warmer conditions, with temperatures peaking at 30°C (86°F) and an average of 22°C (72°F), while lows remain at a comfortable 14°C (58°F). This month sees significantly less rainfall, with just 29 mm (1.2 in) over 5 days and a lower humidity of 61%. The difference between the two months highlights the shift from a cold, damp winter to a warm, pleasant summer. For more details, check out Nettuno weather in June.

December and July present a stark contrast in weather conditions. In December, temperatures range from a chilly minimum of 4°C (39°F) to a mild maximum of 18°C (64°F), with an average of 11°C (52°F). This month is characterized by significant precipitation, totaling 171 mm (6.7 in) over approximately 15 days, coupled with high humidity levels at 84%. In contrast, July enjoys a much warmer climate with temperatures soaring from a minimum of 20°C (68°F) to a comfortable maximum of 30°C (87°F), averaging around 25°C (77°F). The summer month is notably drier, experiencing only 23 mm (0.9 in) of rain across just 3 days and a humidity level of 57%. For a closer look at July weather specifics, you can check Nettuno weather in July.

When comparing the weather between December and August, significant differences emerge. December features cooler temperatures, with averages around 11°C (52°F) and a maximum of 18°C (64°F), while August enjoys much warmer conditions, with an average of 26°C (79°F) and highs reaching 32°C (89°F). The humidity in December is notably higher at 84%, making it feel chillier, whereas August boasts a more comfortable 53% humidity. Additionally, December sees more precipitation, with 171 mm (6.7 in) over 15 days, compared to a drier August, which typically has only 15 mm (0.6 in) of rain over just 3 days. For more detailed weather information, you can check Nettuno weather in August.

In December, the weather is significantly cooler, with average temperatures ranging from a low of 4°C (39°F) to a high of 18°C (64°F), compared to September’s warmer averages of 13°C (55°F) to 29°C (85°F). Humidity levels also differ, with December exhibiting a higher humidity of 84%, while September enjoys a more comfortable 65%. Additionally, December receives more precipitation, totaling 171 mm (6.7 in) over 15 days, whereas September sees a milder 96 mm (3.8 in) in just 9 days. For a detailed look at September weather, you can visit Nettuno weather in September.

In comparing the weather in December and October, we see notable differences in temperature and precipitation patterns. December experiences cooler temperatures, with a minimum of 4°C (39°F) and an average of 11°C (52°F), while October boasts milder conditions, with averages around 18°C (65°F) and maximums reaching 25°C (78°F). Additionally, December has a higher precipitation total of 171 mm (6.7 in) over 15 days compared to October's 106 mm (4.2 in) over 11 days, resulting in a wetter climate. The humidity is also greater in December at 84%, as opposed to October's 75%. For more detailed insights, you can check the weather specifics for Nettuno weather in October.

In December, the weather experiences a noticeable drop in temperature compared to November, with average highs of 18°C (64°F) and lows of 4°C (39°F), while November boasts warmer averages of 22°C (72°F) for maximum temperatures and a minimum of 5°C (42°F). Additionally, December sees increased precipitation, totaling 171 mm (6.7 in) over 15 days, compared to November's 217 mm (8.6 in) spread over 17 days. Humidity levels remain relatively high in both months, with December at 84% and November slightly lower at 81%. For more detailed information on November's weather, consider visiting Nettuno weather in November.

Compare Nettuno's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Nettuno

As December settles in, Nettuno experiences a noticeable shift in weather compared to other months. The cooler temperatures, averaging around 11°C (52°F), offer a crisp contrast to the milder autumn days, while the higher rainfall of 171 mm (6.7 in) spread across approximately 15 days highlights the start of winter's wet season. With humidity levels soaring to 84%, the air feels particularly damp and chilly. This unique combination makes December a time for cozy indoor activities and festive holiday preparations. For those looking to understand how these conditions fit into the broader climatic patterns, more information can be found at Nettuno Climate.