August weather forecast and climate
South Dennis, NJ

Weather in August

August, the last month of the summer, in South Dennis, is also a moderately hot month, with temperature in the range of an average low of 71.6°F (22°C) and an average high of 79.9°F (26.6°C).

Temperature

In August, the average high-temperature is relatively the same as in July - a still warm 79.9°F (26.6°C). In South Dennis, the average low-temperature is 71.6°F (22°C).

Humidity

In August, the average relative humidity in South Dennis 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

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

Daylight

In South Dennis, New Jersey, the average length of the day is 13.6h.

Sunshine

The average sunshine in August 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 threat to health from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in August in South Dennis?

In South Dennis, New Jersey, in August, the average high-temperature is 79.9°F (26.6°C), and the average low-temperature is 71.6°F (22°C).

What is the average humidity in August in South Dennis?

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

How much does it rain in South Dennis in August?

In South Dennis, New Jersey, in August, during 13.5 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

What is the rainiest month in South Dennis?

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

When it does not snow in South Dennis?

April through October are months without snowfall in South Dennis, New Jersey.

What is the average length of the day in August in South Dennis?

In August, the average length of the day in South Dennis, New Jersey, is 13.6h.

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

In August, the average sunshine is 10.7h.

What is the month with the highest UV index in South Dennis?

Months with the highest UV index are June through August, with an average maximum UV index of 6.

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

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk from the exposure to the Sun's UV rays.

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"

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

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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").
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).
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: 13.6h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in August: 10.7h

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

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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

Months with the highest UV index are June, July and August (UV index 6).
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

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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