August weather forecast
South Dennis, NJ

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Weather in August

The last month of the summer, August, is another warm month in South Dennis, New Jersey, with an average temperature fluctuating between 79.9°F (26.6°C) and 71.6°F (22°C).

Temperature

South Dennis indicates an average high-temperature of a still warm 79.9°F (26.6°C) in August, showing minor variation from July's 80.8°F (27.1°C). August nights experience a minor temperature downturn to a pleasant 71.6°F (22°C).

Humidity

In South Dennis, the average relative humidity in August is 77%.

Rainfall

The month with the most rainfall is August, when the rain falls for 13.5 days and typically aggregates up to 1.61" (41mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In August, the average length of the day in South Dennis is 13h and 40min.
On the first day of August in South Dennis, New Jersey, sunrise is at 6:00 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:31 pm EDT.

Sunshine

In August, the average sunshine is 10.7h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in August interprets into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

What is the temperature in August in South Dennis?

During August, South Dennis experiences an average high-temperature of 79.9°F (26.6°C) and a low-temperature of 71.6°F (22°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is appraised at 86°F (30°C).

What is the average humidity in August in South Dennis?

In South Dennis, New Jersey, the average relative humidity in August is 77%.

What is the rainiest month in South Dennis?

August is the month with the most rainfall in South Dennis. Rain falls for 13.5 days and accumulates 1.61" (41mm) of precipitation.

How many days does it rain in August in South Dennis?

In August, in South Dennis, the rain falls for 13.5 days. Throughout August, 1.61" (41mm) of precipitation is accumulated.

When it does not snow in South Dennis?

In South Dennis, snow does not fall in April through October.

How many hours of daylight does South Dennis have in August?

The average day length in August is 13h and 40min.

When is the sunrise / sunset in August in South Dennis?

On the first day of August in South Dennis, New Jersey, sunrise is at 6:00 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:31 pm EDT.

How many hours of sunshine does South Dennis have in August?

The average sunshine duration in August is 10.7h.

When is the highest UV index in South Dennis?

The months with the highest UV index in South Dennis are June through August, with an average maximum UV index of 6.

What is the UV index intensity in August in South Dennis?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
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
South Dennis, NJ

Average temperature in August - South Dennis, NJ
  • Average high temperature in August: 79.9°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in August: 71.6°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).

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Average pressure in August
South Dennis, NJ

Average pressure in August - South Dennis, NJ
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in August
South Dennis, NJ

Average wind speed in August - South Dennis, NJ
  • Average wind speed in August: 8.1mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).

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Average humidity in August
South Dennis, NJ

Average humidity in August - South Dennis, NJ
  • Average humidity in August: 77%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (73%).

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Average rainfall in August
South Dennis, NJ

Average rainfall in August - South Dennis, NJ
  • Average rainfall in August: 1.61"

The wettest month (with the highest rainfall) is August (1.61").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in August
South Dennis, NJ

Average rainfall days in August - South Dennis, NJ
  • Average rainfall days in August: 13.5 days

The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (7 days).

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Average snowfall in August
South Dennis, NJ

Average snowfall in August - South Dennis, NJ
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.59").
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
South Dennis, NJ

Average snowfall days in August - South Dennis, NJ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
South Dennis, NJ

Average daylight in August / Average sunshine in August - South Dennis, NJ
  • 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 4min

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

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Average sunshine days in August
South Dennis, NJ

Average sunshine days in August - South Dennis, NJ
  • Average sunshine days in August: 14.8 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is July (13.4 days).

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Average UV index in August
South Dennis, NJ

Average UV index in August - South Dennis, NJ
  • Average UV index in August: 6

The months with the highest UV index are 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
South Dennis, NJ

Average cloud cover in August - South Dennis, NJ
  • 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 25).

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Average visibility in August
South Dennis, NJ

Average visibility in August - South Dennis, NJ
  • 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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South Dennis, New Jersey, USA

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