August weather forecastFort Lauderdale, FL

August
Weather in August
August experiences the hottest average minimum temperature of 82°F (27.8°C) in Fort Lauderdale, Florida. The level of rainfall decreases slightly when compared to the peak in July, but stays relatively high compared to the rest of the year. However, the reduction in rainfall coincides with the sea temperature hitting its annual high. The number of daylight hours begins to decline towards the end of August, signaling the close of summer. Despite being in the peak summer season, August experiences an average wind speed similar to July at 8.1mph (13km/h).Temperature
Fort Lauderdale notes the warmest temperatures in August, with a high average of 87.4°F (30.8°C) and a low of 82°F (27.8°C).Heat index
In August, the average heat index is evaluated at a fiery hot 100.4°F (38°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.The heat index's values are generally associated with conditions in shade and light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
The average relative humidity in August is 72%.Rainfall
August is the month with the most rainfall. Rain falls for 22.3 days and accumulates 2.68" (68mm) of precipitation.Ocean temperature
The month with the warmest seawater is August, with an average ocean temperature of 86.4°F (30.2°C).Note: For those looking to cool down, water temperatures above 86°F (30°C) might not be ideal.
Daylight
The average length of the day in August is 13h and 2min.On the first day of August, sunrise is at 6:46 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 7:40 pm EDT.
Sunshine
In August, the average sunshine is 10.7h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 7 in August translates into this advice:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Fort Lauderdale, FL
- Average high temperature in August: 87.4°F
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is January (73°F).
- Average low temperature in August: 82°F
The month with the highest average low temperature is August (82°F).
The coldest month (with the lowest average low temperature) is January (64.2°F).
Average pressure in August
Fort Lauderdale, FL
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.95"Hg).
Average wind speed in August
Fort Lauderdale, FL
- Average wind speed in August: 8.1mph
The windiest month (with the highest average wind speed) is March (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in August
Fort Lauderdale, FL
- Average humidity in August: 72%
The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is March (69%).
Average rainfall in August
Fort Lauderdale, FL
- Average rainfall in August: 2.68"
The wettest month (with the highest rainfall) is August (2.68").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in August
Fort Lauderdale, FL
- Average rainfall days in August: 22.3 days
The month with the highest number of rainy days is September (23.6 days).
The month with the least rainy days is February (8.3 days).
Average sea temperature in August
Fort Lauderdale, FL
- Average sea temperature in August: 86.3°F
The best month for swimming (with the highest average sea temperature) is August (86.3°F).
The coldest months (with the lowest average sea temperature) are January and February (74.2°F).
Average daylight in August /
Average sunshine in August
Fort Lauderdale, FL
- Average daylight in August: 13h and 0min
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 30min).
- Average sunshine in August: 10h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 18min).
Average sunshine days in August
Fort Lauderdale, FL
- Average sunshine days in August: 4.2 days
The month with the most sunshine days is January (17.4 days).
The month with the least sunshine days is September (3.9 days).
Average UV index in August
Fort Lauderdale, 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 months with the lowest UV index are January and December (UV index 5).
Average cloud cover in August
Fort Lauderdale, FL
- Average cloud cover in August: 29
The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 27).
Average visibility in August
Fort Lauderdale, 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).





