July weather forecast
Marco Island, FL

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Sunset over the beach in Marco Island Beach, Florida, along the Gulf of Mexico
Sunset over the beach in Marco Island Beach, Florida, along the Gulf of Mexico

Weather in July

July brings the height of summer in Marco Island, characterized by heavy rainfall and hot weather. Neither the temperature nor the rainfall show significant change from June, persisting with 7.8" (198mm) of rain spread over 14 days. Despite the heavy downpours, July is still considered a popular time for vacations, with visitors enjoying Marco Island's renowned indoor activities. Nonetheless, the high UV index makes sun safety measures an indispensable part of one's daily routine.

Temperature

Marco Island's warmest months, July through September, record an average high-temperature of 89.6°F (32°C).

Rainfall

In July, the rain falls for 14 days. Throughout July, 7.83" (199mm) of precipitation is accumulated. Throughout the year, there are 111 rainfall days, and 51.57" (1310mm) of precipitation is accumulated.

Ocean temperature

In July, the average ocean temperature in Marco Island, Florida, is 85.6°F (29.8°C).
Note: For engaging in any water activities, temperatures from 77°F (25°C) to 84.2°F (29°C) are viewed as outstanding and exceptionally pleasing for prolonged durations.

Daylight

In July, the average length of the day is 13h and 35min.
On the first day of the month, sunrise is at 6:38 am and sunset at 8:22 pm. On the last day of July, sunrise is at 6:52 am and sunset at 8:13 pm EDT.

Sunshine

The months with the most sunshine are April through July, with an average of 10h of sunshine.

UV index

The months with the highest UV index are April through August, with an average maximum UV index of 11. A UV Index reading of 11, and higher, represents an extreme health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A maximum UV index of 11 in July translates into the following recommendations:
Enforce all necessary safety measures, unprotected skin may suffer burns swiftly. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Applying and reapplying a broad-spectrum sunscreen with a minimum SPF 30 after every two hours, outdoor workout, or swim is recommended. Be mindful! Sand and water reflections can up the Sun's UV exposure.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

The warmest period in Marco Island is usually observed in July through September, with the average high-temperature peaking at 89.6°F (32°C).

How hot is it in July?

During July, Marco Island experiences an average high-temperature of 89.6°F (32°C) and a low-temperature of 73.4°F (23°C).

How much does it rain in July?

In Marco Island, during July, the rain falls for 14 days and regularly aggregates up to 7.83" (199mm) of precipitation.

How warm is the water in July?

In July, the average ocean temperature is 85.6°F (29.8°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Marco Island have in July?

In Marco Island, the average day length in July is 13h and 35min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 6:38 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 8:13 pm EDT.

What is the month with the most sunshine?

The months with the most sunshine are April through July, with an average of 10h of sunshine.

How long on average sun shines in July?

The average sunshine duration in July is 10h.

What are the months with the highest UV index?

The months with the highest UV index are April through August, with an average maximum UV index of 11.

How high is the UV index in July?

The average daily maximum UV index in July is 11. A UV Index of 11, and more, symbolizes an extreme health threat from exposure to Sun's UV rays.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in July
Marco Island, FL

Average temperature in July - Marco Island, FL
  • Average high temperature in July: 90°F

The warmest months (with the highest average high temperature) are July, August and September (90°F).
The months with the lowest average high temperature are January, February and December (75°F).

  • Average low temperature in July: 73°F

The month with the highest average low temperature is August (75°F).
The coldest months (with the lowest average low temperature) are January and February (55°F).

Average rainfall in July
Marco Island, FL

Average rainfall in July - Marco Island, FL
  • Average rainfall in July: 7.8"

The wettest month (with the highest rainfall) is June (9.2").
The driest months (with the least rainfall) are November and December (1.5").

Average rainfall days in July
Marco Island, FL

Average rainfall days in July - Marco Island, FL
  • Average rainfall days in July: 14 days

The month with the highest number of rainy days is August (16 days).
The month with the least rainy days is April (4 days).

Average sea temperature in July
Marco Island, FL

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

The best month for swimming (with the highest average sea temperature) is August (87.3°F).
The coldest months (with the lowest average sea temperature) are January and February (67.2°F).

Average daylight in July /
Average sunshine in July
Marco Island, FL

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

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in July: 10h

The months with the most sunshine are April, May, June and July (Average sunshine: 10h).
The months with the least sunshine are January, November and December (Average sunshine: 7h).

Average UV index in July
Marco Island, FL

Average UV index in July - Marco Island, FL
  • Average UV index in July: 11

The months with the highest UV index are April, May, June, July and August (UV index 11).
The month with the lowest UV index is December (UV index 5).

Marco Island, Florida, USA

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