July weather forecast
Naples, FL

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Magnificent white sandy shores of Naples in Florida, USA, complete with a view of the city structure and plantation
Magnificent white sandy shores of Naples in Florida, USA, complete with a view of the city structure and plantation

Weather in July

July is the peak of the summer season in Naples with temperatures climbing to their maximum averages. High relative humidity of 73% dominates the weather scene, coupled with the highest average sea temperature of 85.6°F (29.8°C). However, daylight hours exhibit a slight dip from June, marking the commencement of gradually shorter days. Despite the oppressive temperatures, life continues vibrantly, thanks to its coastal terrain and refreshing sea breezes.

Temperature

July ushers in an average high-temperature of a still hot 87.4°F (30.8°C), aligning closely with the preceding month. In July, Naples experiences a marginal drop in temperature, with averages of 79.7°F (26.5°C) at night.

Heat index

In July, the heat index is appraised at a fiery hot 100.4°F (38°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In Naples, the average relative humidity in July is 73%.

Rainfall

In Naples, during July, the rain falls for 20 days and regularly aggregates up to 3.62" (92mm) of precipitation. In Naples, during the entire year, the rain falls for 162.1 days and collects up to 21.69" (551mm) of precipitation.

Ocean temperature

In July, the average ocean temperature in Naples is 85.6°F (29.8°C).
Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.

Daylight

In Naples, the average length of the day in July is 13h and 35min.
On the first day of the month, sunrise is at 6:38 am and sunset at 8:23 pm. On the last day of July, sunrise is at 6:52 am and sunset at 8:14 pm EDT.

Sunshine

The months with the most sunshine are May and July, with an average of 11.1h of sunshine.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 7 in July converts into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Naples during July?

An average high-temperature, in July, in Naples, is 87.4°F (30.8°C) and the average low-temperature is 79.7°F (26.5°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in July is appraised at 100.4°F (38°C).

What is the average humidity in July in Naples?

In July, the average relative humidity is 73%.

How much does it rain in July?

In Naples, during July, the rain falls for 20 days and regularly aggregates up to 3.62" (92mm) of precipitation.

How warm is the water in July?

In July, the average ocean temperature is 85.6°F (29.8°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Naples have in July?

The average day length in July in Naples is 13h and 35min.

When is the sunrise / sunset in July?

In July, on the first day of the month, sunrise is at 6:38 am and sunset at 8:23 pm. On the last day of the month, in Naples, Florida, sunrise is at 6:52 am and sunset at 8:14 pm EDT.

What are the months with the most sunshine?

May and July, with an average of 11.1h of sunshine, are months with the most sunshine.

How long on average sun shines in July?

In July, the average sunshine duration is 11.1h.

What is the month with the highest UV index?

The months with the highest UV index are May through September, with an average maximum UV index of 7.

How high is the UV index in July?

In July, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Naples, FL

Average temperature in July - Naples, FL
  • Average high temperature in July: 87.4°F

The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is January (71.6°F).

  • Average low temperature in July: 79.7°F

The month with the highest average low temperature is August (80.2°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).

Average pressure in July
Naples, FL

Average pressure in July - Naples, FL
  • Average pressure in July: 30.02"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.94"Hg).

Average wind speed in July
Naples, FL

Average wind speed in July - Naples, FL
  • Average wind speed in July: 6.2mph

The windiest month (with the highest average wind speed) is November (9.2mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).

Average humidity in July
Naples, FL

Average humidity in July - Naples, FL
  • Average humidity in July: 73%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is March (72%).

Average rainfall in July
Naples, FL

Average rainfall in July - Naples, FL
  • Average rainfall in July: 3.62"

The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is March (0.63").

Average rainfall days in July
Naples, FL

Average rainfall days in July - Naples, FL
  • Average rainfall days in July: 20 days

The month with the highest number of rainy days is August (22.4 days).
The month with the least rainy days is February (7 days).

Average sea temperature in July
Naples, FL

Average sea temperature in July - Naples, FL
  • Average sea temperature in July: 85.6°F

The best month for swimming (with the highest average sea temperature) is August (87.2°F).
The coldest month (with the lowest average sea temperature) is January (66.6°F).

Average daylight in July /
Average sunshine in July
Naples, FL

Average daylight in July / Average sunshine in July - Naples, FL
  • Average daylight in July: 13h and 4min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in July: 11h and 1min

The months with the most sunshine are May and July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in July
Naples, FL

Average sunshine days in July - Naples, FL
  • Average sunshine days in July: 8.3 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is August (6.8 days).

Average UV index in July
Naples, FL

Average UV index in July - Naples, FL
  • Average UV index in July: 7

The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and February (UV index 5).

Average cloud cover in July
Naples, FL

Average cloud cover in July - Naples, FL
  • Average cloud cover in July: 25

The month with the most cloud cover is January (Cloud cover 28).
The months with the least cloud cover are March and April (Cloud cover 22).

Average visibility in July
Naples, FL

Average visibility in July - Naples, FL
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Naples, Florida, USA

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