August weather forecast
Dewey Beach, DE

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Weather in August

August in Dewey Beach, Delaware, entails the continuation of summer's warmth but with a hint of an approaching fall. Frequent visits to the beach or swimming pool become a daily routine for many. The high temperature records a slight dip to 79.2°F (26.2°C) while the low remains more or less unchanged at 73°F (22.8°C). Despite August being one of the rainiest months, the weather remains suitable for various outdoor events. The entrance of September brings a notable decrease in temperature, ushering in the much cooler autumn months.

Temperature

August's weather records an average high-temperature of a still moderately hot 79.2°F (26.2°C), showing little deviation from July. During the nights of August, Dewey Beach records an average temperature of 73°F (22.8°C), a minor drop from daytime peaks.

Humidity

The average relative humidity in August is 78%.

Rainfall

In August, in Dewey Beach, the rain falls for 9.1 days. Throughout August, 0.63" (16mm) of precipitation is accumulated. Throughout the year, there are 89.4 rainfall days, and 6.18" (157mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in August is 13h and 38min.
On the first day of August, sunrise is at 6:02 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:31 pm EDT.

Sunshine

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

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Dewey Beach. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A typical high UV index of 6 in August suggests the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

What is the average August temperature in Dewey Beach?

During August, Dewey Beach experiences an average high-temperature of 79.2°F (26.2°C) and a low-temperature of 73°F (22.8°C).

What is the average humidity in August in Dewey Beach?

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

How many days does it rain in August in Dewey Beach?

In Dewey Beach, Delaware, in August, it is raining for 9.1 days, with typically 0.63" (16mm) of accumulated precipitation.

When it does not snow in Dewey Beach?

April through October are months without snowfall in Dewey Beach, Delaware.

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

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

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

On the first day of August in Dewey Beach, Delaware, sunrise is at 6:02 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:31 pm EDT.

How long on average sun shines in August in Dewey Beach?

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

What is the month with 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.

What is the UV index reading in August in Dewey Beach?

In August, the average daily maximum UV index in Dewey Beach, Delaware, is 6. A UV Index of 6 to 7 symbolizes a high health threat from unsafe 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
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 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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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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Dewey Beach, Delaware, USA

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