August weather forecast
Dewey Beach, DE

Weather in August

August, the last month of the summer in Dewey Beach, is also a moderately hot month, with an average temperature ranging between min 73°F (22.8°C) and max 79.2°F (26.2°C).

Temperature

In August, the average high-temperature is practically the same as in July - a still warm 79.2°F (26.2°C). In August, the average low-temperature is 73°F (22.8°C).

Humidity

In August, the average relative humidity is 78%.

Rainfall

In Dewey Beach, Delaware, during August, the rain falls for 9.1 days and regularly aggregates up to 0.63" (16mm) of precipitation. In Dewey Beach, during the entire year, the rain falls for 89.4 days and collects up to 6.18" (157mm) of precipitation.

Snowfall

April through October are months without snowfall in Dewey Beach.

Daylight

The average length of the day in August in Dewey Beach, Delaware, is 13h and 38min.
On the first day of August in Dewey Beach, sunrise is at 6:01 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:32 pm EDT.

Sunshine

The average sunshine in August in Dewey Beach is 10.7h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 6 in August transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in August in Dewey Beach?

In Dewey Beach, Delaware, the average relative humidity in August is 78%.

How much does it rain in Dewey Beach in August?

In Dewey Beach, Delaware, during August, the rain falls for 9.1 days and regularly aggregates up to 0.63" (16mm) of precipitation.

When it does not snow in Dewey Beach?

In Dewey Beach, Delaware, snow does not fall in April through October.

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

The average day length in August in Dewey Beach is 13h and 38min.

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

In August, on the first day of the month, sunrise is at 6:01 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:32 pm EDT.

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

In Dewey Beach, the average sunshine duration in August is 10.7h.

When is the highest UV index in Dewey Beach?

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

How high is the UV index in August in Dewey Beach?

In Dewey Beach, Delaware, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.

Average temperature in August
Dewey Beach, DE

Average temperature in August - Dewey Beach, DE
  • Average high temperature in August: 79.2°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (41.4°F).

  • Average low temperature in August: 73°F

The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).

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Average pressure in August
Dewey Beach, DE

Average pressure in August - Dewey Beach, DE
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in August
Dewey Beach, DE

Average wind speed in August - Dewey Beach, DE
  • Average wind speed in August: 8.8mph

The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).

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Average humidity in August
Dewey Beach, DE

Average humidity in August - Dewey Beach, DE
  • Average humidity in August: 78%

The month with the highest relative humidity is May (82%).
The month with the lowest relative humidity is November (73%).

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Average rainfall in August
Dewey Beach, DE

Average rainfall in August - Dewey Beach, DE
  • Average rainfall in August: 0.63"

The wettest month (with the highest rainfall) is October (0.71").
The driest month (with the least rainfall) is September (0.28").

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Average rainfall days in August
Dewey Beach, DE

Average rainfall days in August - Dewey Beach, DE
  • Average rainfall days in August: 9.1 days

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is November (4.9 days).

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Average snowfall in August
Dewey Beach, DE

Average snowfall in August - Dewey Beach, DE
  • Average snowfall in August: 0"

The months with the highest snowfall are January and December (0.12").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Dewey Beach, DE

Average snowfall days in August - Dewey Beach, DE
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Dewey Beach, DE

Average daylight in August / Average sunshine in August - Dewey Beach, DE
  • Average daylight in August: 13h and 38min

The month with the longest days is June (Average daylight: 14h and 50min).
The month with the shortest days is December (Average daylight: 9h and 31min).

  • Average sunshine in August: 10.7h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is February (Average sunshine: 5h).

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Average sunshine days in August
Dewey Beach, DE

Average sunshine days in August - Dewey Beach, DE
  • Average sunshine days in August: 18.3 days

The month with the most sunshine days is January (23.5 days).
The months with the least sunshine days are June and July (18.2 days).

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Average UV index in August
Dewey Beach, DE

Average UV index in August - Dewey Beach, DE
  • 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, February and December (UV index 2).

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Average cloud cover in August
Dewey Beach, DE

Average cloud cover in August - Dewey Beach, DE
  • Average cloud cover in August: 26

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 24).

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Average visibility in August
Dewey Beach, DE

Average visibility in August - Dewey Beach, DE
  • 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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