August weather forecast
Boynton Beach, FL

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Weather in August

August, the last month of the summer in Boynton Beach, is also a hot month, with temperature in the range of an average low of 81.5°F (27.5°C) and an average high of 86.7°F (30.4°C).

Temperature

August, recognised by an average high temperature of 86.7°F (30.4°C) and a low of 81.5°F (27.5°C), is Boynton Beach's warmest month.

Heat index

August's heat index is evaluated at a fiery hot 98.6°F (37°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The average relative humidity in August is 74%.

Rainfall

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

Ocean temperature

The month with the warmest seawater in Boynton Beach is August, with an average ocean temperature of 85.6°F (29.8°C).
Note: For activities such as swimming and diving, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as particularly pleasant and satisfying for prolonged periods without feeling uneasy.

Daylight

The average length of the day in August in Boynton Beach is 13h and 3min.
On the first day of August in Boynton Beach, Florida, 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 7:40 pm EDT.

Sunshine

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

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 7 during August translates into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Stay aware! UV radiation is magnified when reflecting off sand and water.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest in Boynton Beach?

August is the month when Boynton Beach sees the average highest temperatures, with a high of 86.7°F (30.4°C) and a low of 81.5°F (27.5°C).

Is it hot in Boynton Beach during August?

The high-temperature, in August, in Boynton Beach, records 86.7°F (30.4°C), while the low-temperature is 81.5°F (27.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 98.6°F (37°C).

What is the average humidity in August in Boynton Beach?

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

What is the rainiest month in Boynton Beach?

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

How much does it rain in Boynton Beach in August?

In Boynton Beach, Florida, in August, it is raining for 27.3 days, with typically 9.06" (230mm) of accumulated precipitation.

What is the month with the warmest ocean in Boynton Beach?

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

What is the ocean temperature in August in Boynton Beach?

In August, the average ocean temperature in Boynton Beach, Florida, 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.

What is the average length of the day in August in Boynton Beach?

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

When is the sunrise / sunset in August in Boynton Beach?

In August, on the first day of the month, sunrise is at 6:45 am and sunset at 8:07 pm. On the last day of the month, in Boynton Beach, Florida, sunrise is at 6:59 am and sunset at 7:40 pm EDT.

What are the months with the most sunshine in Boynton Beach?

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

How many hours of sunshine does Boynton Beach have in August?

The average sunshine duration in August is 10.7h.

What is the month with the highest UV index in Boynton Beach?

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

What is the UV index intensity in August in Boynton Beach?

In Boynton Beach, Florida, the average daily maximum UV index in August is 7. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.

Average temperature in August
Boynton Beach, FL

Average temperature in August - Boynton 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).

Average pressure in August
Boynton Beach, FL

Average pressure in August - Boynton 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).

Average wind speed in August
Boynton Beach, FL

Average wind speed in August - Boynton 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).

Average humidity in August
Boynton Beach, FL

Average humidity in August - Boynton 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%).

Average rainfall in August
Boynton Beach, FL

Average rainfall in August - Boynton 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").

Average rainfall days in August
Boynton Beach, FL

Average rainfall days in August - Boynton 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).

Average sea temperature in August
Boynton Beach, FL

Average sea temperature in August - Boynton 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).

Average daylight in August /
Average sunshine in August
Boynton Beach, FL

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

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in August: 10h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 6h and 0min).

Average sunshine days in August
Boynton Beach, FL

Average sunshine days in August - Boynton 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).

Average UV index in August
Boynton Beach, FL

Average UV index in August - Boynton 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).

Average cloud cover in August
Boynton Beach, FL

Average cloud cover in August - Boynton 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).

Average visibility in August
Boynton Beach, FL

Average visibility in August - Boynton 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).

Boynton Beach, Florida, USA

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