January Weather in Posillipo, Italy

Last updated: March 24, 2025

In January, Posillipo, Italy, experiences a mild winter climate characterized by an average temperature of 11°C (52°F). Daytime highs can reach up to 17°C (63°F), while nights dip to around 1°C (33°F), providing a diverse range of temperatures. This month sees 11 days of precipitation, accumulating to 116 mm (4.6 in), enhancing the region's lush landscapes. The humidity remains relatively high at 84%, contributing to the crisp, invigorating air that embodies the charm of this coastal locale during the winter months.

January Temperature in Posillipo

In January, Posillipo experiences a mild winter, with temperatures ranging from a cool 1°C (33°F) at night to a pleasant 17°C (63°F) during the day. The average temperature holds steady at around 11°C (52°F), providing a comfortable backdrop for leisurely strolls along the stunning Neapolitan coastline. As the month progresses, a subtle warming trend sets the stage for February, where nighttime lows rise slightly, and daytime highs start to taper off to 16°C (62°F). This trend reflects Posillipo's typically temperate Mediterranean climate, which transitions gracefully into the milder weeks ahead, ensuring that the charm of this coastal town remains inviting even in the heart of winter.

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

The chart illustrates January temperature patterns in Posillipo, 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 Posillipo 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.

January Precipitation in Posillipo

In January, Posillipo experiences a significant amount of precipitation, with 116 mm (4.6 in) spread over 11 days of rain. This marks the beginning of the year's wet season, setting a tone that is mirrored in the following month, February, which sees a slight decrease to 113 mm (4.5 in) but maintains a similar pattern in rainy days. As winter progresses into March and April, the precipitation tapers off significantly, declining to 88 mm (3.4 in) and 51 mm (2.0 in) respectively, while the number of wet days also reduces. Interestingly, winter's retreat ushers in much drier months through the summer, where June, July, and August witness minimal rainfall, often less than 1 inch combined. As the year transitions into autumn, September and October bring back the rains, with 96 mm (3.8 in) and 100 mm (3.9 in), although they still fall short of the heavier downpours typical of November. That month stands out dramatically with 285 mm (11.2 in), making it the wettest, while December remains substantial at 206 mm (8.1 in). This rhythm of precipitation captures Posillipo's climate, revealing the strong seasonal contrasts and foreshadowing a lush start to the new year.

January Precipitation Trends in Posillipo

The chart displays monthly precipitation patterns in Posillipo, 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 Posillipo

In January, Posillipo experiences a high humidity level of 84%, setting a trend that continues into the colder months. This winter moisture hints at the region's coastal climate, where humidity slowly begins to decline in February to 76%. As spring approaches, the humidity decreases further, reaching 69% by March and stabilizing around 70% through April and May. The summer months bring drier air, evidenced by the drop to 57% in July and 53% in August, marking the peak of the dry season. However, by September, humidity levels start to rise again, reaching 65%, and climb back to 81% in November as autumn settles in, before closing out the year on a humid note similar to January. This cyclical pattern reflects Posillipo’s characteristic blend of oceanic influences and seasonal changes.

January Average Humidity in Posillipo

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

In January, Posillipo experiences a moderate UV Index of 3, indicating a burn time of about 30 minutes under direct sunlight. As the month transitions into February, the UV Index rises slightly to 4, maintaining the same exposure category and burn time. However, the real shift occurs in March when the index escalates to 6 and enters the high exposure category, reducing the safe burn time to 25 minutes. This trend continues into April with an even higher UV Index of 7. The peak is reached during the summer months of May through July, where the UV Index hits 9 and 10, categorizing the exposure as very high and necessitating a mere 15-minute burn time. As summer wanes into autumn, the UV Index steadily declines, with October landing at 6 and a return to moderate levels in November at 4. By December, the UV Index drops further to a low of 2, allowing for an extended burn time of 45 minutes. This gradual progression reflects the increasing intensity of UV radiation throughout the year, making it essential to stay informed. For more detailed information, visit Posillipo UV Index.

Maximum UV Index Levels in Posillipo for January

The chart shows the monthly maximum UV Index (UVI) for Posillipo 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: Posillipo 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 Posillipo

In Posillipo, Italy, January marks the beginning of the year with 191 hours of sunshine, laying the groundwork for a gradual increase as the months progress. This trend continues into February, where 252 hours herald a subtle return of warmth and light. By March, the sun shines for 316 hours, signaling spring's approach and the allure of the vibrant coastal landscape. April and May enhance this upward trajectory, with daylight reaching 351 and 393 hours, respectively, inviting locals and visitors alike to embrace outdoor activities. The peak summer months of June and July bask in exceptional sunshine, boasting 408 and 424 hours, underscoring the region’s appeal as a summer getaway. As August arrives, sunshine dips slightly to 397 hours, yet remains abundant, while September welcomes the onset of autumn with 336 hours. October and November experience a gentle decline, with 310 and 241 hours, leading to December's closing of the year at 237 hours. This yearly journey through light not only captures the rhythm of seasons but also illustrates the radiant charm of Posillipo throughout the year.

Monthly Sunshine Duration in Posillipo: January Highlighted

The January sunshine duration represents the total number of hours Posillipo 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: Posillipo January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Posillipo During January

In January, Posillipo, Italy, experiences a 36% chance of sunny weather, marking it as one of the chillier and cloudier months of the year. As winter fades, the likelihood of sunshine steadily increases, reaching 55% in February and climbing further to 58% in March. Interestingly, this upward trend continues through the spring months, with April at 47% and May at 52%, hinting at the approaching warmth of summer. By June and July, the sunny disposition skyrockets to an impressive 62% and 79%, respectively, culminating in August with an 80% probability of bright days. This transition from a relatively gloomy January to the sun-drenched peak of summer illustrates the vibrant seasonal shift that Posillipo undergoes each year, making it a region that blossoms beautifully under the sun as the months progress.

Percentage of Sunny Days in January in Posillipo

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

Daylight Hours in Posillipo in January

In January, Posillipo, Italy, experiences about 9 hours of daylight, a stark reminder of winter's grasp. As the month progresses into February, daylight increases to 10 hours, hinting at the gradual approach of spring. This trend continues into March with 11 hours of sunlight, further brightening the days. By April, Posillipo basks in 13 hours of daylight, and by the time May arrives, the sun graces the city for 14 hours each day. The zenith of daylight occurs in June with 15 hours, perfect for enjoying the seaside. However, as summer wanes, the daylight begins to recede, dropping to 14 hours in July and then 13 hours in August. The decline continues into the fall, with 12 hours in September and 11 hours in October, before returning to 9 hours in both November and December, closing the year much like it began—under the serene embrace of winter’s twilight. This captivating rhythm of light and shadow underscores the beauty of Posillipo's changing seasons.

Average Daylight Hours in Posillipo for January

The chart illustrates the variation in daylight duration in Posillipo 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: Posillipo daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Posillipo

In January, Posillipo experiences its most exhilarating winds, with an average speed of 5.9 m/s (13 mph), setting the stage for a lively coastal atmosphere. As the year progresses into February and March, the breeze gently subsides to around 4.3 m/s (10 mph) and 4.2 m/s (9 mph), respectively, bringing a more serene feel to the shores. The trend continues into spring, with April and May showcasing even lighter winds at approximately 4.1 m/s (9 mph) and 3.4 m/s (8 mph)—ideal for leisurely strolls along the waterfront. Summer brings a slight uptick as winds pick up to 3.0 m/s (7 mph) in July, reflecting a mild but pleasant change. However, by October, as autumn sets in, the winds regain some vigor at 4.4 m/s (10 mph), ushering in a refreshing change before settling back down into the calm of winter months. Overall, Posillipo's wind patterns reveal a captivating dance between seasonal shifts, making each month uniquely memorable for both locals and visitors alike.

Average January Wind Speed in Posillipo

The chart displays monthly wind speed patterns in Posillipo, 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: Posillipo January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Posillipo Compares to Other Months

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

In January, the weather is generally cooler, with minimum temperatures dropping to around 1°C (33°F) and an average of 11°C (52°F). The month experiences a higher average humidity of 84% and receives about 116 mm (4.6 in) of precipitation over 11 days. In contrast, February shows a slight warming trend, with minimum temperatures reaching 2°C (37°F) and an average of 12°C (53°F). Precipitation decreases slightly to 113 mm (4.5 in) over 10 days, and humidity drops to 76%. For more detailed information about weather trends in February, you can explore Posillipo weather in February.

In January, the temperatures in Posillipo range from a minimum of 1°C (33°F) to a maximum of 17°C (63°F), with an average of 11°C (52°F). It experiences higher precipitation levels at 116 mm (4.6 in) over about 11 days, accompanied by a notable humidity of 84%. In contrast, March sees slightly warmer temperatures with a minimum of 3°C (38°F) and the same maximum of 17°C (63°F), averaging around 12°C (54°F). Precipitation decreases to 88 mm (3.4 in) across around 10 days, with humidity dropping significantly to 69%. For more specific details on March weather, check out Posillipo weather in March.

In January, the weather tends to be quite cool, 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 sees considerable rainfall, with 116 mm (4.6 in) of precipitation over approximately 11 days, contributing to a high humidity level of 84%.

In contrast, April brings milder and more pleasant conditions, with temperatures ranging from a minimum of 7°C (46°F) to a maximum of 23°C (74°F) and an average of 14°C (58°F). Precipitation decreases significantly to 51 mm (2.0 in) over about 9 days, and humidity also drops to 70%. For those curious about April weather specifics, you can find more details in the article Posillipo weather in April.

In January, the weather tends to be quite cool, 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). With 116 mm (4.6 in) of precipitation over 11 days and a humidity level of 84%, it's a month characterized by damp and chilly conditions. In stark contrast, May brings a warmer atmosphere, with temperatures ranging from a minimum of 11°C (53°F) to a pleasant maximum of 26°C (79°F), averaging 18°C (65°F). The precipitation decreases significantly to 57 mm (2.2 in) over just 7 days, and humidity drops to 70%, contributing to a more comfortable and enjoyable climate. For a detailed look at the weather in May, you can check Posillipo weather in May.

In January, temperatures range from a chilly 1°C (33°F) at their lowest to a mild 17°C (63°F) at their peak, with an average of 11°C (52°F). The month is marked by significant precipitation, totaling 116 mm (4.6 in) over 11 days, and high humidity levels at 84%. In contrast, June boasts much warmer temperatures, with a minimum of 16°C (60°F) and a maximum of 29°C (84°F), averaging around 22°C (73°F). Rainfall is minimal in June, amounting to only 21 mm (0.8 in) over just 2 days, and humidity drops to a comfortable 61%. This stark difference highlights the transition from the cold and wet winter of January to the warm and dry summer of June; for more details, check out Posillipo weather in June.

Comparing the weather in January and July reveals a stark contrast in temperatures and precipitation. In January, the minimum temperature hovers around 1°C (33°F), while the average temperature reaches 11°C (52°F) and can peak at 17°C (63°F). The month experiences significant rainfall with 116 mm (4.6 in) spread over 11 days, coupled with a high humidity level of 84%. In contrast, July boasts a much warmer climate with a minimum temperature of 21°C (71°F), an average of 25°C (77°F), and a maximum reaching 29°C (84°F). The summer month enjoys far less precipitation, totaling just 12 mm (0.5 in) over 2 days and a humidity level of 57%. For a closer look at the July weather specifics in Posillipo, you can visit Posillipo weather in July.

January weather is characterized by cooler temperatures, with averages ranging from a low of 1°C (33°F) to a high of 17°C (63°F). The month experiences considerable precipitation, totaling 116 mm (4.6 in) over about 11 days, coupled with high humidity at 84%. In contrast, August boasts a much warmer climate, with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 31°C (88°F). The summer month is notably drier, with only 12 mm (0.5 in) of rain falling over just one day and a significant drop in humidity to 53%. For more detailed insights into August weather, you can visit Posillipo 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). This month also sees significant precipitation, averaging 116 mm (4.6 in) across 11 days, along with higher humidity levels at 84%. In contrast, September brings warmer conditions with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 28°C (83°F) and an average of 23°C (74°F). With total precipitation of 96 mm (3.8 in) over just 9 days, humidity drops significantly to 65%. For more detailed information, you can refer to Posillipo weather in September.

In January, temperatures are significantly cooler, with a minimum of 1°C (33°F) and an average of 11°C (52°F), peaking at 17°C (63°F). The month also sees higher precipitation, averaging 116 mm (4.6 in) over 11 days, coupled with high humidity at 84%. In contrast, October experiences much milder weather, with temperatures ranging from a minimum of 14°C (57°F) to an average of 19°C (67°F), reaching up to 25°C (77°F). Precipitation decreases slightly to 100 mm (3.9 in) over 10 days, and humidity lowers to 75%. For more details on October weather, check Posillipo weather in October.

When comparing January and November weather, January experiences milder temperatures with a minimum of 1°C (33°F) and an average high of 17°C (63°F), while November offers warmer conditions, with a minimum of 9°C (49°F) and an average high reaching 22°C (72°F). Precipitation is notably higher in November, totaling 285 mm (11.2 in) over 17 days, compared to January's 116 mm (4.6 in) over 11 days. Humidity levels are relatively similar, with January at 84% and November at 81%. For more detailed insights on November weather, check out Posillipo weather in November.

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 temperature of 11°C (52°F). The month experiences significantly less precipitation than December, with 116 mm (4.6 in) of rainfall across 11 days. In contrast, December sees warmer temperatures, with a minimum of 7°C (44°F) and a maximum of 18°C (64°F), and an average of 13°C (56°F). However, December is wetter, receiving 206 mm (8.1 in) of rain over 16 days, while the humidity remains consistent at 84% in both months. For more detailed weather information, please refer to Posillipo weather in December.

Compare Posillipo's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Posillipo

January in Posillipo is characterized by cool temperatures and higher humidity, setting it apart from the milder months of spring and summer. The average temperature hovers around a brisk 11°C, creating a noticeable contrast with the warmer seasons. While rain is not uncommon, with about 11 days of precipitation, it contributes to the lushness of the region as we move into the wetter months. This blend of cool air and moisture underscores the charm of Posillipo in winter, making it a unique destination during this time. For a deeper understanding of what to expect throughout the year, explore the detailed insights at Posillipo Climate.