January Weather in Naples, Italy

Last updated: March 24, 2025

January in Naples, Italy presents a mild yet intriguing climate, ideally suited for those looking to escape the winter chill. The maximum temperature typically reaches 17°C (63°F), while the average hovers around a comfortable 11°C (52°F). However, nighttime can bring a sharp drop, with temperatures dipping to a minimum of 1°C (33°F). Rain is a common visitor this month, with an average precipitation amount of 116 mm (4.6 in) spread across 11 days, contributing to the region's lush winter landscape. With humidity levels around 84%, this month offers a unique blend of cooler air and occasional showers, creating a dynamic atmosphere for visitors to explore the rich history and culture of Naples.

January Temperature in Naples

In January, Naples experiences a refreshing winter climate, with temperatures ranging from a chilly 1°C (33°F) at night to a pleasant 17°C (63°F) during the day. The average temperature hovers around 11°C (52°F), making it the perfect time for cozy strolls through the city's historic streets. As January transitions into February, the warmth begins to rise slightly, yet the temperatures remain comfortably mild, establishing a gentle upward trend as spring approaches. Overall, January serves as a tranquil prelude to the vibrant Mediterranean climate that Naples is renowned for, inviting visitors to savor its rich culture and stunning architecture against a backdrop of crisp air and refreshing breezes.

January Weather in Naples: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Naples, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec525354586472777974676155
Data source: Temperature data for Naples 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.

January Precipitation in Naples

January in Naples, Italy, typically brings a moderate 116 mm (4.6 in) of precipitation over about 11 days, establishing it as one of the wetter months of the year. This trend continues into February, with just a slight decrease in rainfall to 113 mm (4.5 in) across 10 days. As spring approaches, however, the precipitation begins to taper off noticeably, with March and April seeing a significant reduction to 88 mm (3.4 in) and 51 mm (2.0 in) respectively. The drier months of June and July feature only 21 mm (0.8 in) and 12 mm (0.5 in), illustrating a clear transition toward summer dryness. Notably, November stands out with a remarkable 285 mm (11.2 in) of rain, highlighting a dramatic return to wetter weather as autumn sets in. Overall, January serves as a bridge between the wetter winter months and the drier summer, with a consistent pattern of decreasing precipitation leading up to the sunny Mediterranean summer.

January Precipitation Trends in Naples

The chart displays monthly precipitation patterns in Naples, with values for each month alongside January's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec11611388515721121296100285206
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Naples

In January, Naples experiences a high humidity level of 84%, setting a trend that peaks during the winter months. As the year progresses into February, humidity begins to decline to 76%, leading into the milder spring months of March and April, where levels hover around 69% and 70% respectively. This slight decrease continues into May and June, hitting a low of 61% as the summer approaches. The warmest months of July and August see humidity levels further drop to 57% and 53%, making the coastal city pleasantly balmy. However, as autumn arrives in September, a rise to 65% marks the transition back toward winter conditions, with October and November bringing humidity levels back up to 75% and 81%. Interestingly, December reflects the year's start, as humidity returns to 84%, closing the annual cycle with the same high that it began. This cyclical pattern highlights Naples' unique climate, where humidity levels ebb and flow with the seasons.

January Average Humidity in Naples

This chart illustrates the average monthly humidity levels in Naples, with January's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how January's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec84%76%69%70%70%61%57%53%65%75%82%84%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Naples

In January, Naples experiences a moderate UV Index of 3, indicating a safe level of sun exposure but still calling for attention, especially for those planning extended outdoor activities. With a burn time of 30 minutes, it's wise to seek shade or wear sunscreen during midday hours. As winter transitions into spring, the UV Index gradually climbs, reaching 4 in February and soaring to 6 by March, suggesting increased care is needed as the days lengthen. This upward trend continues into the hotter months, peaking at a very high index of 10 in both June and July, where sacrifice of sun time drops to just 15 minutes before sun protection becomes crucial. To stay informed and protect your skin year-round, check the detailed UV Index trends for Naples by visiting Naples UV Index.

Maximum UV Index Levels in Naples for January

The chart shows the monthly maximum UV Index (UVI) for Naples in January, 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.
JanFebMarAprMayJunJulAugSepOctNovDec34679101098642
Data source: Naples January 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.

January Sunshine in Naples

In January, Naples greets the year with a tranquil charm, basking in 191 hours of sunshine. While this may seem modest compared to later months, it sets the stage for a gradual increase in brightness as winter gives way to spring. By February, daylight swells to 252 hours, hinting at the promise of warmer days ahead. As the months unfold, the sun's embrace intensifies, peaking in July with a radiant 424 hours. This gradual ascent—from the cool, crisp light of January to the sun-drenched celebration of summer—paints a vivid portrait of Naples’ shifting climate, with autumn bringing a gentle retreat back to 310 hours in October and softly fading towards November's 241 hours. Each month offers its unique sun-soaked allure, inviting visitors to revel in Naples' year-round beauty.

Monthly Sunshine Duration in Naples: January Highlighted

The January sunshine duration represents the total number of hours Naples experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec191h252h316h351h393h408h424h397h336h310h241h237h
Data source: Naples January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Naples During January

In Naples, Italy, the likelihood of enjoying sunny weather in January stands at 36%, marking it as one of the cooler months for sunshine. This percentage gradually increases as winter transitions to spring, with February seeing a notable rise to 55% and March reaching 58%. As spring unfolds into the warmth of summer, the chances of sunny days soar; by July and August, travelers can expect a bright and cheerful 79% to 80% likelihood of sun. The trend shows a clear seasonal progression, where the vibrant Mediterranean sun returns full force, making Naples a delightful destination for warmth-seekers as the year unfolds.

Percentage of Sunny Days in January in Naples

The chart illustrates the percentage of sunny days in Naples throughout the year, with January 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 Naples experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec36%55%58%47%52%62%79%80%57%44%32%51%
Data source: Naples January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Naples in January

In Naples, Italy, January greets residents with 9 hours of daylight, setting a tone of subtle illumination as winter lingers. As the calendar flips to February, the days start to lengthen, gaining an additional hour of sunlight. This upward trend continues through the spring, with daylight extending to 11 hours in March and reaching a vibrant 13 hours by April. As May ushers in the brilliance of summer, daylight peaks at 15 hours in June, offering long, sun-soaked days. Even in July, with 14 hours of light, the allure of sunshine remains strong. However, as the seasons shift, daylight begins to retreat, gradually decreasing to 12 hours in September and back to 9 hours by November and December, completing the annual cycle. This gradual ebb and flow of daylight not only marks the changing seasons but also enhances the enchanting charm of Naples throughout the year.

Average Daylight Hours in Naples for January

The chart illustrates the variation in daylight duration in Naples throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 36m10h 38m11h 57m13h 19m14h 28m15h 2m14h 44m13h 43m12h 25m11h 4m9h 53m9h 16m
Data source: Naples daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Naples

In January, Naples greets the new year with a lively average wind speed of 5.9 m/s (13 mph), setting the tone for a dynamic winter month. As the days progress into February, the winds soften to 4.3 m/s (10 mph), gradually leading into a calmer March and April, where speeds hover around 4.2 and 4.1 m/s (9 mph) respectively. The gentle breezes of spring become even more subdued by May, dipping to 3.4 m/s (8 mph), as the summer months beckon. June experiences the calmest winds at just 2.7 m/s (6 mph), before a slight uptick in speed returns in July and August. However, as the year winds down, November revives a bit more vigor with winds at 5.2 m/s (12 mph), showcasing a seasonal ebb and flow that captures Naples' unique coastal climate. The contrast between the energetic January gusts and the tranquil summer breezes paints a vivid picture of the city’s atmospheric rhythm throughout the year.

Average January Wind Speed in Naples

The chart displays monthly wind speed patterns in Naples, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.9 m/s4.34.24.13.42.73.03.22.94.45.24.9
Data source: Naples January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Naples Compares to Other Months

The weather in Naples changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Naples and find detailed weather information for every month.

January and February offer mild winter weather, though slightly different in their characteristics. In January, temperatures range from a chilly 1°C (33°F) at night to a comfortable 17°C (63°F) during the day, with an average of 11°C (52°F). The month sees a good amount of rain, totaling 116 mm (4.6 in) over about 11 days, contributing to a higher humidity of 84%. In contrast, February experiences slightly warmer nights with a minimum temperature of 2°C (37°F) and an average daytime temperature of 12°C (53°F). The maximum temperature in February reaches 16°C (62°F), and the precipitation decreases marginally to 113 mm (4.5 in) over 10 rainy days, while humidity lowers to 76%. For more detailed information about February weather, you can visit Naples weather in February.

In January, the weather in Naples is generally cool, with temperatures ranging from a minimum of 1°C (33°F) to a maximum of 17°C (63°F) and an average temperature of 11°C (52°F). The month experiences substantial rainfall, totaling 116 mm (4.6 in) over about 11 days, contributing to a high humidity level of 84%. In contrast, March brings slightly warmer temperatures, with a minimum of 3°C (38°F) and an average of 12°C (54°F), while still reaching a maximum of 17°C (63°F). Rainfall decreases to 88 mm (3.4 in) over 10 days, and humidity drops to a more comfortable 69%. For more details, you can check Naples weather in March.

January and April exhibit notable differences in weather patterns. In January, temperatures range from a chilly minimum of 1°C (33°F) to a mild maximum of 17°C (63°F), with an average of 11°C (52°F). The month is also characterized by relatively high precipitation of 116 mm (4.6 in) across 11 days and a humidity level of 84%, creating a damp atmosphere. In contrast, April brings a significant warming trend, with temperatures ranging from a minimum of 7°C (46°F) to a pleasant maximum of 23°C (74°F), averaging at 14°C (58°F). Precipitation decreases to 51 mm (2.0 in) over 9 days and humidity drops to a more comfortable 70%, making it a brighter spring month. For more detailed insights on April weather, visit Naples weather in April.

In January, the weather is noticeably cooler, with temperatures ranging from a minimum of 1°C (33°F) to a maximum of 17°C (63°F) and an average of 11°C (52°F). The month experiences significant precipitation, totaling 116 mm (4.6 in) over approximately 11 days, along with high humidity levels of 84%. In contrast, May brings much warmer conditions, with temperatures starting at a minimum of 11°C (53°F) and peaking at 26°C (79°F), averaging around 18°C (65°F). The month is generally drier, with only 57 mm (2.2 in) of rain over 7 days and a lower humidity of 70%. For more details on the pleasant weather during this month, check out Naples weather in May.

In January, the weather is significantly cooler, with temperatures ranging from a minimum of 1°C (33°F) to a maximum of 17°C (63°F) and an average of 11°C (52°F). This month also sees frequent precipitation, with 116 mm (4.6 in) spread over approximately 11 days and a high humidity level of 84%. In contrast, June brings much warmer and sunnier conditions, with temperatures soaring from a minimum of 16°C (60°F) to a maximum of 29°C (84°F) and an average of 22°C (73°F). The precipitation in June drops to only 21 mm (0.8 in) over just 2 days, and the humidity decreases to a more comfortable 61%. For more specific details about June weather, you can check Naples weather in June.

January and July present stark contrasts in weather conditions. In January, temperatures range from a low of 1°C (33°F) to a high of 17°C (63°F), with an average of around 11°C (52°F). The month is characterized by considerable precipitation, with about 116 mm (4.6 inches) over 11 days, leading to a high humidity level of 84%. In contrast, July sees much warmer temperatures, ranging from a minimum of 21°C (71°F) to a maximum of 29°C (84°F), averaging around 25°C (77°F). The summer month enjoys minimal rainfall, totaling only 12 mm (0.5 inches) over just 2 days, and lower humidity at 57%. For more detailed insights, check out Naples weather in July.

In January, the weather is considerably cooler, with temperatures ranging from a minimum of 1°C (33°F) to a maximum of 17°C (63°F) and an average of 11°C (52°F). The month is quite wet, experiencing about 116 mm (4.6 in) of precipitation over 11 days, coupled with high humidity at 84%. In contrast, August brings much warmer conditions, featuring temperatures that range from a minimum of 21°C (70°F) to a maximum of 31°C (88°F), with an average of 26°C (79°F). Rain is rare during this month, with only 12 mm (0.5 in) of precipitation expected over just one day and lower humidity at 53%. For more details on the summer climate, check out Naples weather in August.

In January, the weather is considerably cooler, with temperatures ranging from a minimum of 1°C (33°F) to a maximum of 17°C (63°F), and an average of 11°C (52°F). The month experiences significant rainfall of 116 mm (4.6 in) over 11 days, coupled with high humidity levels at 84%. In contrast, September brings milder and more pleasant conditions, featuring temperatures that range from a minimum of 15°C (59°F) to a maximum of 28°C (83°F), with an average of 23°C (74°F). Precipitation is lower at 96 mm (3.8 in) over 9 days, and the humidity drops to a more comfortable 65%. For more details on the weather during this month, check out Naples weather in September.

In January, temperatures typically range from a chilly 1°C (33°F) at night to a mild 17°C (63°F) during the day, with an average of 11°C (52°F). This month tends to be wetter, with precipitation measuring 116 mm (4.6 in) over 11 days and a high humidity level of 84%. In contrast, October offers a much warmer climate, with minimum temperatures around 14°C (57°F) and daytime highs reaching up to 25°C (77°F), averaging 19°C (67°F). Rainfall decreases slightly to 100 mm (3.9 in) across 10 days, and humidity also drops to 75%. For a detailed look at what to expect, visit Naples weather in October.

January and November display markedly different weather patterns. In January, temperatures range from a chilly 1°C (33°F) at night to a mild 17°C (63°F) during the day, with an average temperature of 11°C (52°F). This month experiences about 116 mm (4.6 in) of precipitation over 11 days, while humidity levels are relatively high at 84%. In contrast, November boasts warmer temperatures, with minimums around 9°C (49°F) and maximums reaching 22°C (72°F), leading to an average of 16°C (62°F). However, it is also wetter, with a substantial 285 mm (11.2 in) of rain over 17 days and humidity slightly lower at 81%. For more insights about the weather in November, check out Naples weather in November.

In comparing the weather of January and December, we observe notable differences in temperature and precipitation. January experiences cooler temperatures, with a minimum of 1°C (33°F) and an average of 11°C (52°F), compared to December's milder minimum of 7°C (44°F) and an average of 13°C (56°F). Additionally, January sees less rainfall, accumulating 116 mm (4.6 in) over 11 days, whereas December is significantly wetter with 206 mm (8.1 in) across 16 days. Both months maintain a consistent humidity level of 84%. For more on the December weather specifics, you can visit Naples weather in December.

Compare Naples's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Naples

January in Naples offers a distinct contrast to the warmer months, with milder temperatures and noticeable humidity levels creating a unique climate. While other months bask in the Mediterranean sun, January's chilly average of 11°C encourages visitors to explore the city's cultural treasures wrapped in cozy layers. Rainfall is relatively frequent during this time, with about 11 days of precipitation, contributing to the lush winter landscape. Despite the cooler weather, Naples retains its charm, making it an ideal month for those who appreciate a quieter, more contemplative experience. For a complete overview of what to expect throughout the year, be sure to check out Naples Climate.