July weather forecast
West Dennis, MA

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Weather in July

July in West Dennis, Massachusetts, is a pleasant summer month, with an average temperature varying between 67.6°F (19.8°C) and 71.6°F (22°C).

Temperature

In West Dennis, the average high-temperature in July slightly rises, from a refreshing 63.5°F (17.5°C) in June, to a pleasant 71.6°F (22°C). The temperature during July sees a subtle transition from day to night, averaging a low of 67.6°F (19.8°C).

Humidity

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

Rainfall

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

Snowfall

May through November are months without snowfall.

Ocean temperature

In July, the average ocean temperature is 65.8°F (18.8°C).
Note: Swimming is not a pleasant activity for most individuals in 65.8°F (18.8°C). Breathing becomes increasingly challenging to control as the water temperature dips from 69.8°F (21°C) to 59°F (15°C).

Daylight

The average length of the day in July is 14h and 51min.
On the first day of the month, sunrise is at 5:10 am and sunset at 8:18 pm. On the last day of July, sunrise is at 5:34 am and sunset at 7:59 pm EDT.

Sunshine

In July, the average sunshine is 10.5h.

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In July, a daily UV index of 6 turns into the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.

Frequently asked questions

What is the usual temperature for West Dennis in July?

An average high-temperature, in July, in West Dennis, is 71.6°F (22°C) and the average low-temperature is 67.6°F (19.8°C).

What is the most humid month?

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

What is the average humidity in July in West Dennis?

The average relative humidity in July is 84%.

How many days does it rain in July?

In July, the rain falls for 12.3 days. Throughout July, 1.02" (26mm) of precipitation is accumulated.

When it does not snow?

May through November are months without snowfall in West Dennis.

What is the ocean temperature in July?

In July, the average ocean temperature in West Dennis is 65.8°F (18.8°C). Swimming in 65.8°F (18.8°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

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

In West Dennis, the average day length in July is 14h and 51min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:10 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 7:59 pm EDT.

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

In July, the average sunshine duration is 10.5h.

When is the highest UV index?

The months with the highest UV index are July and August, with an average maximum UV index of 6.

What is the UV index reading in July?

The average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to 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 July
West Dennis, MA

Average temperature in July - West 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).

Average pressure in July
West Dennis, MA

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

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

Average wind speed in July
West Dennis, MA

Average wind speed in July - West 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).

Average humidity in July
West Dennis, MA

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

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

Average rainfall in July
West Dennis, MA

Average rainfall in July - West 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").

Average rainfall days in July
West Dennis, MA

Average rainfall days in July - West 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).

Average snowfall in July
West Dennis, MA

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

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

Average snowfall days in July
West Dennis, MA

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

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

Average sea temperature in July
West Dennis, MA

Average sea temperature in July - West 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).

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

Average daylight in July / Average sunshine in July - West Dennis, MA
  • Average daylight in July: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in July: 10h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).

Average sunshine days in July
West Dennis, MA

Average sunshine days in July - West 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).

Average UV index in July
West Dennis, MA

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

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

Average cloud cover in July
West Dennis, MA

Average cloud cover in July - West 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).

Average visibility in July
West Dennis, MA

Average visibility in July - West Dennis, MA
  • Average visibility in July: 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).

West Dennis, Massachusetts, USA

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