August weather forecast
South Palm Beach, FL

Weather in August

The last month of the summer, August, is another hot month in South Palm Beach, Florida, with an average temperature varying between 86.7°F (30.4°C) and 81.5°F (27.5°C).

Temperature

August is the warmest month, with an average high-temperature of 86.7°F (30.4°C) and an average low-temperature of 81.5°F (27.5°C).

Heat index

In August, the average heat index is appraised at a sweltering 98.8°F (37.1°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'feels like', or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, pregnancy, wind). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body 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. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

In August, the average relative humidity in South Palm Beach, Florida, is 74%.

Rainfall

The month with the most rainfall in South Palm Beach is August, when the rain falls for 27.3 days and typically aggregates up to 9.06" (230mm) of precipitation.

Ocean temperature

August is the month with the warmest seawater in South Palm Beach, with an average ocean temperature of 85.6°F (29.8°C).
Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In South Palm Beach, the average length of the day in August is 13h and 3min.
On the first day of August in South Palm Beach, sunrise is at 6:45 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 7:41 pm EDT.

Sunshine

July and August, with an average of 10.7h of sunshine, are months with the most sunshine in South Palm Beach.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in South Palm Beach. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 7 in August transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the warmest month in South Palm Beach?

August is the warmest month in South Palm Beach, with an average high-temperature of 86.7°F (30.4°C) and an average low-temperature of 81.5°F (27.5°C).

What is the temperature in August in South Palm Beach?

In South Palm Beach, in August, the average high-temperature is 86.7°F (30.4°C), and the average low-temperature is 81.5°F (27.5°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in August is appraised at 98.8°F (37.1°C).

What is the average humidity in August in South Palm Beach?

In August, the average relative humidity in South Palm Beach is 74%.

What is the wettest month in South Palm Beach?

August is the month with the most rainfall. Rain falls for 27.3 days and accumulates 9.06" (230mm) of precipitation.

How many days does it rain in August in South Palm Beach?

In South Palm Beach, Florida, during August, the rain falls for 27.3 days and regularly aggregates up to 9.06" (230mm) of precipitation.

What month is the ocean warmest in South Palm Beach?

August is the month with the warmest seawater in South Palm Beach, with an average ocean temperature of 85.6°F (29.8°C).

What is the water temperature in August in South Palm Beach?

In South Palm Beach, Florida, in August, the average water temperature is 85.6°F (29.8°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does South Palm Beach have in August?

In August, the average day length in South Palm Beach, Florida, is 13h and 3min.

What time are sunrise and sunset in August in South Palm Beach?

On the first day of August, sunrise is at 6:45 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 7:41 pm EDT.

What is the month with the most sunshine in South Palm Beach?

The months with the most sunshine in South Palm Beach are July and August, with an average of 10.7h of sunshine.

How many hours of sunshine does South Palm Beach have in August?

The average sunshine duration in August in South Palm Beach, Florida, is 10.7h.

What are the months with the highest UV index in South Palm Beach?

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

What is the UV index reading in August in South Palm Beach?

In South Palm Beach, the average daily maximum UV index in August is 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.

Average temperature in August
South Palm Beach, FL

Average temperature in August - South Palm Beach, FL
  • Average high temperature in August: 86.7°F

The warmest month (with the highest average high temperature) is August (86.7°F).
The month with the lowest average high temperature is January (72.5°F).

  • Average low temperature in August: 81.5°F

The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is January (64°F).

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Average pressure in August
South Palm Beach, FL

Average pressure in August - South Palm Beach, 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 (29.96"Hg).

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Average wind speed in August
South Palm Beach, FL

Average wind speed in August - South Palm Beach, FL
  • Average wind speed in August: 8.1mph

The windiest month (with the highest average wind speed) is March (11.5mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).

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Average humidity in August
South Palm Beach, FL

Average humidity in August - South Palm Beach, FL
  • Average humidity in August: 74%

The months with the highest relative humidity are June and December (76%).
The month with the lowest relative humidity is March (70%).

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Average rainfall in August
South Palm Beach, FL

Average rainfall in August - South Palm Beach, FL
  • Average rainfall in August: 9.06"

The wettest month (with the highest rainfall) is August (9.06").
The driest month (with the least rainfall) is January (1.3").

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Average rainfall days in August
South Palm Beach, FL

Average rainfall days in August - South Palm Beach, FL
  • Average rainfall days in August: 27.3 days

The month with the highest number of rainy days is August (27.3 days).
The month with the least rainy days is February (13.3 days).

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Average sea temperature in August
South Palm Beach, FL

Average sea temperature in August - South Palm Beach, FL
  • Average sea temperature in August: 85.7°F

The best month for swimming (with the highest average sea temperature) is August (85.7°F).
The coldest month (with the lowest average sea temperature) is January (74.1°F).

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Average daylight in August /
Average sunshine in August
South Palm Beach, FL

Average daylight in August / Average sunshine in August - South Palm Beach, FL
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 13h and 47min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in August: 10.7h

The months with the most sunshine are July and August (Average sunshine: 10.7h).
The months with the least sunshine are January and December (Average sunshine: 6).

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Average sunshine days in August
South Palm Beach, FL

Average sunshine days in August - South Palm Beach, FL
  • Average sunshine days in August: 2.7 days

The month with the most sunshine days is March (12.7 days).
The month with the least sunshine days is July (2.3 days).

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Average UV index in August
South Palm Beach, FL

Average UV index in August - South Palm Beach, 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 5).

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Average cloud cover in August
South Palm Beach, FL

Average cloud cover in August - South Palm Beach, FL
  • Average cloud cover in August: 30

The months with the most cloud cover are January, October, November and December (Cloud cover 36).
The months with the least cloud cover are April and July (Cloud cover 29).

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Average visibility in August
South Palm Beach, FL

Average visibility in August - South Palm Beach, 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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