July Weather in Naples, United States

Last updated: June 24, 2025

In July, the average temperature in Naples, United States hovers around 25°C (77°F), making it a pleasant time of year. However, be prepared for temperature variations, as it can drop to a minimum of 7°C (45°F) or soar up to a maximum of 39°C (102°F). During this month, expect an average precipitation of 11 mm (0.4 in) over approximately 3 days, and enjoy relatively low humidity levels at 45%.

July Temperature in Naples

In July in Naples, the average temperature is 25°C (77°F). Maximum can reach 39°C (102°F) and minimum can be as low as 7°C (45°F). It's a great time for travelers to enjoy warm days while being prepared for cooler evenings.

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

The chart illustrates July 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, July typically has an average temperature of 25°C (77°F), with highs reaching up to 39°C (102°F) and lows dropping to around 7°C (45°F).

Data source: Temperature data for Naples generated using information from the Copernicus Climate Change Service.

July Precipitation in Naples

In Naples in July, the precipitation amount is 11 mm (0.4 in) over the course of 3 days.

July Precipitation Trends in Naples

The chart displays monthly precipitation patterns in Naples, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Naples, July typically receives around 11 mm (0.4 inches) of precipitation spread over approximately 3 days.

Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

July Humidity in Naples

In Naples in July humidity is 45%. With an average temperature of 25°C (77°F), this humidity feels like a gentle embrace, creating a comfortable atmosphere for traveling where you can easily explore without feeling weighed down by the heat.

July Average Humidity in Naples

This chart illustrates the average monthly humidity levels in Naples, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Naples is approximately 45%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Naples

In Naples in July, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Naples.

Maximum UV Index Levels in Naples for July

The chart shows the monthly maximum UV Index (UVI) for Naples in July, 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 July, the maximum UV index in Naples typically reaches 12, which falls under the extreme exposure category.

Data source: Naples July 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 July 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 July’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 July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	26 mm (1.0 inches)	92%	moderate
February Weather	-4°C (25°F)	38 mm (1.5 inches)	93%	high
March Weather	2°C (37°F)	40 mm (1.6 inches)	85%	very high
April Weather	8°C (46°F)	31 mm (1.2 inches)	73%	very high
May Weather	14°C (57°F)	33 mm (1.3 inches)	64%	extreme
June Weather	21°C (70°F)	17 mm (0.7 inches)	57%	extreme
July Weather	25°C (77°F)	11 mm (0.4 inches)	45%	extreme
August Weather	23°C (73°F)	18 mm (0.7 inches)	41%	extreme
September Weather	18°C (64°F)	19 mm (0.8 inches)	50%	very high
October Weather	8°C (46°F)	35 mm (1.4 inches)	70%	high
November Weather	3°C (37°F)	22 mm (0.9 inches)	84%	moderate
December Weather	-4°C (25°F)	28 mm (1.1 inches)	90%	moderate