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March Weather in Naples, United States

Last updated: June 24, 2025

In March, the average temperature in Naples, United States hovers around 1°C (34°F). Expect a chilly environment where temperatures can dip to a brisk -19°C (-1°F) at the lowest, with occasional highs reaching up to 22°C (73°F). During this month, anticipate 76 mm (3.0 in) of precipitation spread over approximately 13 days, resulting in a humid atmosphere with an average humidity of 88%.

March Temperature in Naples

In March in Naples, the average temperature is 1°C (34°F). Maximum temperatures can reach up to 22°C (73°F), while the minimum can drop as low as -19°C (-1°F). Be sure to pack layers to accommodate the wide temperature fluctuations during your travels.

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

The chart illustrates March 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. In Naples, March typically has an average temperature of 1°C (34°F), with highs reaching up to 22°C (73°F) and lows dropping to around -19°C (-1°F).
JanFebMarAprMayJunJulAugSepOctNovDec252734455765706962523730
Data source: Temperature data for Naples 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.

March Precipitation in Naples

In Naples in March, the total precipitation amount is 76 mm (3.0 in), which occurs over the course of 13 days.

March Precipitation Trends in Naples

The chart displays monthly precipitation patterns in Naples, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Naples, March typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec75857611212610614487861388488
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Naples

In Naples in March humidity is 88%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making travel feel damp and brisk, where every breath carries a crisp bite, and the air clings to your skin, urging you to seek warmth and comfort.

March Average Humidity in Naples

This chart illustrates the average monthly humidity levels in Naples, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Naples is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%91%88%88%82%80%77%72%76%83%88%87%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Naples

In Naples in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Naples, you can refer to this Hourly UV Index in Naples.

Maximum UV Index Levels in Naples for March

The chart shows the monthly maximum UV Index (UVI) for Naples in March, 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. In March, the maximum UV index in Naples typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346810101098642
Data source: Naples March 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.

How March Weather in Naples Compares to Other Months

Weather in Naples varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Naples, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Naples, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)75 mm (3.0 inches)91%moderate
February Weather-3°C (27°F)85 mm (3.4 inches)91%moderate
March Weather1°C (34°F)76 mm (3.0 inches)88%high
April Weather7°C (45°F)112 mm (4.4 inches)88%very high
May Weather14°C (57°F)126 mm (5.0 inches)82%very high
June Weather19°C (66°F)106 mm (4.2 inches)79%very high
July Weather21°C (71°F)144 mm (5.7 inches)77%very high
August Weather20°C (69°F)87 mm (3.4 inches)72%very high
September Weather17°C (62°F)86 mm (3.4 inches)76%very high
October Weather11°C (52°F)138 mm (5.4 inches)83%high
November Weather3°C (37°F)84 mm (3.3 inches)88%moderate
December Weather-1°C (30°F)88 mm (3.5 inches)87%low

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