August weather forecast
Summerland Key, FL

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Weather in August

August, the last month of the summer in Summerland Key, is also a moderately hot month, with an average temperature varying between 83.1°F (28.4°C) and 85.3°F (29.6°C).

Temperature

August, on average, is the warmest month, registering a high temperature of 85.3°F (29.6°C) and a low of 83.1°F (28.4°C).

Heat index

The heat index value for August is evaluated at a torrid 95°F (35°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. 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 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. 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. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

The months with the lowest humidity in Summerland Key, Florida, are July through September, with an average relative humidity of 74%.

Rainfall

In August, in Summerland Key, the rain falls for 18.6 days. Throughout August, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 171.1 rainfall days, and 21.54" (547mm) of precipitation is accumulated.

Daylight

In August, the average length of the day in Summerland Key is 12h and 58min.
On the first day of the month, sunrise is at 6:54 am and sunset at 8:09 pm. On the last day of August, in Summerland Key, sunrise is at 7:06 am and sunset at 7:44 pm EDT.

Sunshine

The average sunshine in August is 9.8h.

UV index

April through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the maximum UV index of 7 translates into these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
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Frequently asked questions

What part of the year is the hottest in Summerland Key?

In Summerland Key, August is the warmest month, with temperatures averaging a high of 85.3°F (29.6°C) and a low of 83.1°F (28.4°C).

How hot does it get in Summerland Key in August?

August temperatures in Summerland Key vary between a high-temperature of 85.3°F (29.6°C) and a low-temperature of 83.1°F (28.4°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is evaluated at 95°F (35°C).

What is the least humid month in Summerland Key?

The months with the lowest humidity in Summerland Key are July through September, with an average relative humidity of 74%.

What is the average humidity in August in Summerland Key?

The average relative humidity in August is 74%.

How many days does it rain in August in Summerland Key?

In Summerland Key, Florida, in August, it is raining for 18.6 days, with typically 2.6" (66mm) of accumulated precipitation.

How many hours of daylight does Summerland Key have in August?

In Summerland Key, the average day length in August is 12h and 58min.

When is the sunrise / sunset in August in Summerland Key?

On the first day of August in Summerland Key, Florida, sunrise is at 6:54 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 7:44 pm EDT.

How many hours of sunshine does Summerland Key have in August?

The average sunshine duration in August in Summerland Key, Florida, is 9.8h.

What is the month with the highest UV index in Summerland Key?

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

How high is the UV index in August in Summerland Key?

The average daily maximum UV index in August is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from 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 August
Summerland Key, FL

Average temperature in August - Summerland Key, FL
  • Average high temperature in August: 85.3°F

The warmest month (with the highest average high temperature) is August (85.3°F).
The month with the lowest average high temperature is January (72.7°F).

  • Average low temperature in August: 83.1°F

The month with the highest average low temperature is August (83.1°F).
The coldest month (with the lowest average low temperature) is January (68.5°F).

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Average pressure in August
Summerland Key, FL

Average pressure in August - Summerland Key, FL
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are September and October (29.93"Hg).

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Average wind speed in August
Summerland Key, FL

Average wind speed in August - Summerland Key, FL
  • Average wind speed in August: 10mph

The windiest month (with the highest average wind speed) is November (14.4mph).
The calmest month (with the lowest average wind speed) is July (9.4mph).

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Average humidity in August
Summerland Key, FL

Average humidity in August - Summerland Key, FL
  • Average humidity in August: 74%

The month with the highest relative humidity is February (78%).
The months with the lowest relative humidity are July, August and September (74%).

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Average rainfall in August
Summerland Key, FL

Average rainfall in August - Summerland Key, FL
  • Average rainfall in August: 2.6"

The wettest month (with the highest rainfall) is September (3.54").
The driest month (with the least rainfall) is March (0.43").

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Average rainfall days in August
Summerland Key, FL

Average rainfall days in August - Summerland Key, FL
  • Average rainfall days in August: 18.6 days

The month with the highest number of rainy days is September (20.8 days).
The month with the least rainy days is March (9.4 days).

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Average daylight in August /
Average sunshine in August
Summerland Key, FL

Average daylight in August / Average sunshine in August - Summerland Key, FL
  • Average daylight in August: 13h and 0min

The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 36min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in August
Summerland Key, FL

Average sunshine days in August - Summerland Key, FL
  • Average sunshine days in August: 10.8 days

The month with the most sunshine days is March (19.6 days).
The month with the least sunshine days is September (6.2 days).

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Average UV index in August
Summerland Key, FL

Average UV index in August - Summerland Key, FL
  • Average UV index in August: 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).

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Average cloud cover in August
Summerland Key, FL

Average cloud cover in August - Summerland Key, FL
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 34).
The month with the least cloud cover is April (Cloud cover 23).

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Average visibility in August
Summerland Key, FL

Average visibility in August - Summerland Key, FL
  • Average visibility in August: 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).

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Summerland Key, Florida, USA

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