August weather forecast
Riviera Beach, MD

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Weather in August

August, the last month of the summer in Riviera Beach, is another warm month, with an average temperature fluctuating between 69.1°F (20.6°C) and 83.7°F (28.7°C).

Temperature

Entering August, Riviera Beach's average high-temperature reads a still moderately hot 83.7°F (28.7°C), indicating a close resemblance to the previous month's climate. An average nighttime temperature of 69.1°F (20.6°C) is witnessed in Riviera Beach throughout August.

Heat index

The heat index value during August is computed to be a tropical 91.4°F (33°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. 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 extremely vital to babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.

Humidity

In Riviera Beach, the average relative humidity in August is 73%.

Rainfall

The month with the most rainfall is August, when the rain falls for 13.9 days and typically aggregates up to 3.54" (90mm) of precipitation.

Snowfall

May through October are months without snowfall.

Ocean temperature

With an average ocean temperature of 77.5°F (25.3°C), August is the month with the warmest seawater.
Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) provides warmth and pleasure, making water activities enjoyable for lengthened periods without feeling uncomfortable.

Daylight

In August, the average length of the day is 13h and 39min.
On the first day of August, sunrise is at 6:07 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:37 pm EDT.

Sunshine

In August, the average sunshine is 10.4h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: An average UV index of 6 in August transforms into this advice:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

In Riviera Beach, 83.7°F (28.7°C) is the average high-temperature and 69.1°F (20.6°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 91.4°F (33°C).

What is the average humidity in August?

In Riviera Beach, Maryland, the average relative humidity in August is 73%.

What is the wettest month?

August is the month with the most rainfall. Rain falls for 13.9 days and accumulates 3.54" (90mm) of precipitation.

How much does it rain in August?

In Riviera Beach, Maryland, in August, during 13.9 rainfall days, 3.54" (90mm) of precipitation is typically accumulated.

When it does not snow?

In Riviera Beach, snow does not fall in May through October.

What is the month with the warmest ocean?

The month with the warmest seawater is August, with an average ocean temperature of 77.5°F (25.3°C).

What is the water temperature in August?

In Riviera Beach, in August, the average water temperature is 77.5°F (25.3°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 August, the average day length in Riviera Beach is 13h and 39min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:07 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:37 pm EDT.

How long on average sun shines in August?

In Riviera Beach, the average sunshine duration in August is 10.4h.

When is the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

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

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat from 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
Riviera Beach, MD

Average temperature in August - Riviera Beach, MD
  • Average high temperature in August: 83.7°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.6°F).

  • Average low temperature in August: 69.1°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in August
Riviera Beach, MD

Average pressure in August - Riviera Beach, MD
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Riviera Beach, MD

Average wind speed in August - Riviera Beach, MD
  • Average wind speed in August: 6mph

The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in August
Riviera Beach, MD

Average humidity in August - Riviera Beach, MD
  • Average humidity in August: 73%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

Average rainfall in August
Riviera Beach, MD

Average rainfall in August - Riviera Beach, MD
  • Average rainfall in August: 3.54"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in August
Riviera Beach, MD

Average rainfall days in August - Riviera Beach, MD
  • Average rainfall days in August: 13.9 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in August
Riviera Beach, MD

Average snowfall in August - Riviera Beach, MD
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Riviera Beach, MD

Average snowfall days in August - Riviera Beach, MD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in August
Riviera Beach, MD

Average sea temperature in August - Riviera Beach, MD
  • Average sea temperature in August: 77.5°F

The best month for swimming (with the highest average sea temperature) is August (77.5°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).

Average daylight in August /
Average sunshine in August
Riviera Beach, MD

Average daylight in August / Average sunshine in August - Riviera Beach, MD
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • 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 February (Average sunshine: 5h and 6min).

Average sunshine days in August
Riviera Beach, MD

Average sunshine days in August - Riviera Beach, MD
  • Average sunshine days in August: 15.3 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in August
Riviera Beach, MD

Average UV index in August - Riviera Beach, MD
  • Average UV index in August: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).

Average cloud cover in August
Riviera Beach, MD

Average cloud cover in August - Riviera Beach, MD
  • Average cloud cover in August: 30

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in August
Riviera Beach, MD

Average visibility in August - Riviera Beach, MD
  • 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).

Riviera Beach, Maryland, USA

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