July weather forecast
Islamorada, FL

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Weather in July

July, like June, in Islamorada, Florida, is a moderately hot summer month, with an average temperature ranging between max 84.7°F (29.3°C) and min 82.4°F (28°C).

Temperature

As June turns into July, the average high-temperatures rest at a still moderately hot 84.7°F (29.3°C), showing a minor variation from the prior month. During July, Islamorada perceives a slight decrease in temperature from daytime highs, settling at an average low of 82.4°F (28°C).

Heat index

Throughout July, the heat index is calculated to be a hot 93.2°F (34°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Always consider that heat index estimations are for light winds and places in the shade. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. 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.

Humidity

In Islamorada, the average relative humidity in July is 74%.

Rainfall

In Islamorada, during July, the rain falls for 20.9 days and regularly aggregates up to 3.7" (94mm) of precipitation. In Islamorada, during the entire year, the rain falls for 190.1 days and collects up to 27.05" (687mm) of precipitation.

Ocean temperature

In Islamorada, the average seawater temperature in July is 85.5°F (29.7°C).
Note: Water activities including swimming and diving at temperatures from 77°F (25°C) to 84.2°F (29°C) are deemed very pleasurable and enjoyable for extended periods, devoid of discomfort.

Daylight

The average length of the day in July is 13h and 31min.
On the first day of July, sunrise is at 6:36 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 8:07 pm EDT.

Sunshine

With an average of 11h of sunshine, July has the most sunshine of the year.

UV index

April through October, with an average maximum UV index of 7, are months with the highest UV index in Islamorada. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In July, an average UV index of 7 transforms into the following instructions:
Guard oneself from overexposure. Defence against sun injury is vital. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Alert! The Sun's UV rays are heightened by the reflection of sand and water.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during July?

The average high-temperature, in July, in Islamorada, is 84.7°F (29.3°C), while the average low-temperature is 82.4°F (28°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 93.2°F (34°C).

What is the average humidity in July?

The average relative humidity in July is 74%.

How many days does it rain in July?

In Islamorada, in July, during 20.9 rainfall days, 3.7" (94mm) of precipitation is typically accumulated.

What is the ocean temperature in July?

In Islamorada, in July, the average water temperature is 85.5°F (29.7°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.

What is the average length of the day in July?

In Islamorada, the average day length in July is 13h and 31min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 6:36 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 8:07 pm EDT.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 11h of sunshine.

How many hours of sunshine does Islamorada have in July?

In Islamorada, the average sunshine duration in July is 11h.

When is the highest UV index?

April through October, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in July?

In Islamorada, the average daily maximum UV index in July is 7. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.

Average temperature in July
Islamorada, FL

Average temperature in July - Islamorada, FL
  • Average high temperature in July: 84.7°F

The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (72.7°F).

  • Average low temperature in July: 82.4°F

The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (66.9°F).

Average pressure in July
Islamorada, FL

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

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are September and October (29.94"Hg).

Average wind speed in July
Islamorada, FL

Average wind speed in July - Islamorada, FL
  • Average wind speed in July: 8.9mph

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).

Average humidity in July
Islamorada, FL

Average humidity in July - Islamorada, FL
  • Average humidity in July: 74%

The months with the highest relative humidity are February, June and December (76%).
The month with the lowest relative humidity is March (73%).

Average rainfall in July
Islamorada, FL

Average rainfall in July - Islamorada, FL
  • Average rainfall in July: 3.7"

The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is March (0.59").

Average rainfall days in July
Islamorada, FL

Average rainfall days in July - Islamorada, FL
  • Average rainfall days in July: 20.9 days

The month with the highest number of rainy days is September (22.9 days).
The month with the least rainy days is February (9.7 days).

Average sea temperature in July
Islamorada, FL

Average sea temperature in July - Islamorada, FL
  • Average sea temperature in July: 85.5°F

The best month for swimming (with the highest average sea temperature) is August (86.6°F).
The coldest months (with the lowest average sea temperature) are January and February (73.9°F).

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

Average daylight in July / Average sunshine in July - Islamorada, FL
  • Average daylight in July: 13h and 3min

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 36min).

  • Average sunshine in July: 11h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days in July
Islamorada, FL

Average sunshine days in July - Islamorada, FL
  • Average sunshine days in July: 8.4 days

The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is September (5.2 days).

Average UV index in July
Islamorada, FL

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

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

Average cloud cover in July
Islamorada, FL

Average cloud cover in July - Islamorada, FL
  • Average cloud cover in July: 28

The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 26).

Average visibility in July
Islamorada, FL

Average visibility in July - Islamorada, 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).

Islamorada, Florida, USA

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