July weather forecast and climate
East Dennis, MA

Weather in July

July in East Dennis, Massachusetts, is an agreeable summer month, with average temperature fluctuating between 71.6°F (22°C) and 67.6°F (19.8°C).

Temperature

In July, the average high-temperature marginally rises, from a comfortable 63.5°F (17.5°C) in June, to a pleasant 71.6°F (22°C). In East Dennis, in July, the average low-temperature is 67.6°F (19.8°C).

Humidity

June and July, with an average relative humidity of 84%, are most humid months in East Dennis.

Rainfall

In July, the rain falls for 12.3 days. Throughout July, 1.02" (26mm) of precipitation is accumulated. In East Dennis, during the entire year, the rain falls for 129 days and collects up to 14.21" (361mm) of precipitation.

Snowfall

In East Dennis snow does not fall in May through November.

Ocean temperature

In July, the average ocean temperature in East Dennis, Massachusetts, is 65.8°F (18.8°C).
Note: For swimming, a surface water temperature of 65.8°F (18.8°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

Daylight

The average length of the day in July is 14.9h.

Sunshine

The average sunshine in July is 10.5h.

UV index

Months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In July, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 are the most humid months in East Dennis?

June and July, with an average relative humidity of 84%, are most humid months in East Dennis, Massachusetts.

What is the average humidity in July in East Dennis?

In July, the average relative humidity is 84%.

How much does it rain in East Dennis in July?

In East Dennis, in July, during 12.3 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

When it does not snow in East Dennis?

In East Dennis snow does not fall in May through November.

What is the ocean temperature in July in East Dennis?

In East Dennis, in July, the average water temperature is 65.8°F (18.8°C). For most, swimming in 65.8°F (18.8°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

How many hours of daylight does East Dennis have in July?

In East Dennis, Massachusetts, the average length of the day in July is 14.9h.

How long on average sun shines in July in East Dennis?

In East Dennis, Massachusetts, the average sunshine in July is 10.5h.

When is the highest UV index in East Dennis?

Months with the highest UV index in East Dennis, Massachusetts, are July and August, with an average maximum UV index of 6.

What is the UV index reading in July in East Dennis?

In July, the average daily maximum UV index in East Dennis, Massachusetts, is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV rays.

Average temperature in July
East Dennis, MA

Average temperature in July - East Dennis, MA
  • Average high temperature in July: 71.6°F

The warmest month (with the highest average high temperature) is August (72.1°F).
The month with the lowest average high temperature is January (38.5°F).

  • Average low temperature in July: 67.6°F

The month with the highest average low temperature is August (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in July
East Dennis, MA

Average pressure in July - East Dennis, MA
  • Average pressure in July: 29.96"

The month with the highest atmospheric pressure is November (30.06").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in July
East Dennis, MA

Average wind speed in July - East Dennis, MA
  • Average wind speed in July: 10.9mph

The windiest month (with the highest average wind speed) is January (16.8mph).
The calmest months (with the lowest average wind speed) are July and August (10.9mph).

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Average humidity in July
East Dennis, MA

Average humidity in July - East Dennis, MA
  • Average humidity in July: 84%

Months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is November (74%).

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Average rainfall in July
East Dennis, MA

Average rainfall in July - East Dennis, MA
  • Average rainfall in July: 1.02"

The wettest month (with the highest rainfall) is October (1.93").
The driest month (with the least rainfall) is August (0.94").

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Average rainfall days in July
East Dennis, MA

Average rainfall days in July - East Dennis, MA
  • Average rainfall days in July: 12.3 days

The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is February (8.3 days).

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Average snowfall in July
East Dennis, MA

Average snowfall in July - East Dennis, MA
  • Average snowfall in July: 0"

The month with the highest snowfall is January (0.87").
Months with the least snowfall are May, June, July, August, September, October and November (0").

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Average snowfall days in July
East Dennis, MA

Average snowfall days in July - East Dennis, MA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.4 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in July
East Dennis, MA

Average sea temperature in July - East Dennis, MA
  • Average sea temperature in July: 65.8°F

The best month for swimming (with the highest average sea temperature) is August (67.5°F).
The coldest month (with the lowest average sea temperature) is March (39°F).

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Average daylight in July /
Average sunshine in July
East Dennis, MA

Average daylight in July / Average sunshine in July - East Dennis, MA
  • Average daylight in July: 14.9h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in July: 10.5h

The month with the most sunshine is August (Average sunshine: 10.8h).
Months with the least sunshine are February and December (Average sunshine: 4.6).

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Average sunshine days in July
East Dennis, MA

Average sunshine days in July - East Dennis, MA
  • Average sunshine days in July: 17.6 days

The month with the most sunshine days is September (18.6 days).
The month with the least sunshine days is February (14.3 days).

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Average UV index in July
East Dennis, MA

Average UV index in July - East Dennis, MA
  • Average UV index in July: 6

Months with the highest UV index are July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in July
East Dennis, MA

Average cloud cover in July - East Dennis, MA
  • Average cloud cover in July: 29

The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in July
East Dennis, MA

Average visibility in July - East Dennis, MA
  • Average visibility in July: 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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