Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August is the month when Heathrow's temperatures reach their peak, with averages of 91°F (32.8°C) and lows of 76.6°F (24.8°C).Heat index
The average heat index in August is computed to be a blazing hot 114.8°F (46°C). Precaution: Heat cramps along with heat exhaustion are possible. Heatstroke is a serious risk with continued exertion.Keep in mind the heat index values are meant for areas in shade and with light wind. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
The months with the highest humidity are August and September, with an average relative humidity of 77%.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
February through December are months without snowfall.Daylight
The average length of the day in August 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
The average sunshine in August is 10.4h.UV index
The months with the highest UV index in Heathrow are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 7 during August translates into these guidelines:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months?
How hot does it get in August?
What is the most humid month?
What is the average humidity in August?
What is the rainiest month?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Heathrow have in August?
What time are sunrise and sunset in August?
How long on average sun shines in August in Heathrow?
What is the month with the highest UV index?
How high is the UV index in August?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Heathrow, Florida, USA
Weather forecast for your location
2. Allow the app to use your location