August weather forecast
Heathrow, FL

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Weather in August

August, the last month of the summer in Heathrow, is also a hot month, with an average temperature varying between 91°F (32.8°C) and 76.6°F (24.8°C).

Temperature

Heathrow's warmest month, August, generally records average temperatures ranging from a high of 91°F (32.8°C) to a low of 76.6°F (24.8°C).

Heat index

In August, the heat index is evaluated at a burning hot 114.8°F (46°C). Observe: Heat exhaustion and heat cramps are probable. Heatstroke is on the horizon with prolonged exertion.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

August and September, with an average relative humidity of 77%, are the most humid months.

Rainfall

The month with the most rainfall is August, when the rain falls for 23.8 days and typically aggregates up to 4.72" (120mm) of precipitation.

Snowfall

In Heathrow, snow does not fall in February through December.

Daylight

In August, the average length of the day in Heathrow is 13h and 8min.
On the first day of the month, sunrise is at 6:47 am and sunset at 8:16 pm. On the last day of August, sunrise is at 7:03 am and sunset at 7:47 pm EDT.

Sunshine

In August, the average sunshine is 10.4h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: An average UV index of 7 in August transforms into this advice:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

What is the hottest time of year in Heathrow?

In Heathrow, the average highest temperatures are observed in August, with a high of 91°F (32.8°C) and a low of 76.6°F (24.8°C).

How hot is it in Heathrow in August?

The high-temperature, in August, in Heathrow, is 91°F (32.8°C), while the low-temperature averages to 76.6°F (24.8°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in August is evaluated at 114.8°F (46°C).

What is the most humid month in Heathrow?

August and September, with an average relative humidity of 77%, are most humid months in Heathrow, Florida.

What is the average humidity in August in Heathrow?

The average relative humidity in August in Heathrow, Florida, is 77%.

What is the wettest month in Heathrow?

August is the month with the most rainfall. Rain falls for 23.8 days and accumulates 4.72" (120mm) of precipitation.

How many days does it rain in August in Heathrow?

In Heathrow, in August, it is raining for 23.8 days, with typically 4.72" (120mm) of accumulated precipitation.

When it does not snow in Heathrow?

February through December are months without snowfall in Heathrow.

How many hours of daylight does Heathrow have in August?

In August, the average day length in Heathrow is 13h and 8min.

When is the sunrise / sunset in August in Heathrow?

On the first day of August in Heathrow, Florida, sunrise is at 6:47 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 7:47 pm EDT.

How many hours of sunshine does Heathrow have in August?

In Heathrow, Florida, the average sunshine duration in August is 10.4h.

What are the months with the highest UV index in Heathrow?

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

What is the UV index reading in August in Heathrow?

The average daily maximum UV index in August is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Heathrow, FL

Average temperature in August - Heathrow, FL
  • Average high temperature in August: 91°F

The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (67.8°F).

  • Average low temperature in August: 76.6°F

The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (52°F).

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Average pressure in August
Heathrow, FL

Average pressure in August - Heathrow, FL
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

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Average wind speed in August
Heathrow, FL

Average wind speed in August - Heathrow, FL
  • Average wind speed in August: 4.9mph

The windiest months (with the highest average wind speed) are January, March and April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

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Average humidity in August
Heathrow, FL

Average humidity in August - Heathrow, FL
  • Average humidity in August: 77%

The months with the highest relative humidity are August and September (77%).
The month with the lowest relative humidity is March (70%).

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Average rainfall in August
Heathrow, FL

Average rainfall in August - Heathrow, FL
  • Average rainfall in August: 4.72"

The wettest month (with the highest rainfall) is August (4.72").
The driest month (with the least rainfall) is March (1.18").

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Average rainfall days in August
Heathrow, FL

Average rainfall days in August - Heathrow, FL
  • Average rainfall days in August: 23.8 days

The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is January (10.1 days).

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Average snowfall in August
Heathrow, FL

Average snowfall in August - Heathrow, FL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in August
Heathrow, FL

Average snowfall days in August - Heathrow, FL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in August /
Average sunshine in August
Heathrow, FL

Average daylight in August / Average sunshine in August - Heathrow, FL
  • Average daylight in August: 13h and 1min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).

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Average sunshine days in August
Heathrow, FL

Average sunshine days in August - Heathrow, FL
  • Average sunshine days in August: 4.3 days

The month with the most sunshine days is January (17.4 days).
The month with the least sunshine days is August (4.3 days).

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Average UV index in August
Heathrow, FL

Average UV index in August - Heathrow, FL
  • Average UV index in August: 7

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).

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Average cloud cover in August
Heathrow, FL

Average cloud cover in August - Heathrow, FL
  • Average cloud cover in August: 29

The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 27).

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Average visibility in August
Heathrow, FL

Average visibility in August - Heathrow, 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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Heathrow, Florida, USA

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