July weather forecast
Dismal Key, FL

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Weather in July

July, like June, is another tropical summer month in Dismal Key, Florida, with an average temperature fluctuating between 87.4°F (30.8°C) and 79.7°F (26.5°C).

Temperature

Transitioning into July, Dismal Key experiences an average high-temperature of a still tropical 87.4°F (30.8°C), marking a minor shift from the preceding month. Dismal Key observes a minimal variance in temperature, with a consistent average low of 79.7°F (26.5°C) during the nights of July.

Heat index

The heat index value during July is computed to be a torrid 100.4°F (38°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Given the heat index, its values are aligned with shaded sites and gentle winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

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

Rainfall

In July, the rain falls for 20 days. Throughout July, 3.62" (92mm) of precipitation is accumulated. Throughout the year, there are 162.1 rainfall days, and 21.69" (551mm) of precipitation is accumulated.

Daylight

In July, the average length of the day in Dismal Key is 13h and 34min.
On the first day of July in Dismal Key, 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 8:12 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 estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 7 during July translates into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Jun 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in July?

In July, the average high-temperature and low-temperature are 87.4°F (30.8°C) and 79.7°F (26.5°C) respectively. The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in July is computed to be 100.4°F (38°C).

What is the average humidity in July?

In July, the average relative humidity is 73%.

How many days does it rain in July?

In Dismal Key, in July, during 20 rainfall days, 3.62" (92mm) of precipitation is typically accumulated.

How many hours of daylight does Dismal Key have in July?

In July, the average day length is 13h and 34min.

What time are sunrise and sunset in July in Dismal Key?

In July, on the first day of the month, 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 8:12 pm EDT.

What is the month with the most sunshine?

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

How many hours of sunshine does Dismal Key have in July?

In Dismal Key, the average sunshine duration in July 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.

What is the UV index intensity in July?

In Dismal Key, the average daily maximum UV index in July is 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Dismal Key, FL

Average temperature in July - Dismal Key, 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
Dismal Key, FL

Average pressure in July - Dismal Key, 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
Dismal Key, FL

Average wind speed in July - Dismal Key, 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
Dismal Key, FL

Average humidity in July - Dismal Key, 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
Dismal Key, FL

Average rainfall in July - Dismal Key, 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
Dismal Key, FL

Average rainfall days in July - Dismal Key, 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 daylight in July /
Average sunshine in July
Dismal Key, FL

Average daylight in July / Average sunshine in July - Dismal Key, 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 36min).

  • 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
Dismal Key, FL

Average sunshine days in July - Dismal Key, 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
Dismal Key, FL

Average UV index in July - Dismal Key, 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
Dismal Key, FL

Average cloud cover in July - Dismal Key, 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
Dismal Key, FL

Average visibility in July - Dismal Key, 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).

Dismal Key, Florida, USA

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