July weather forecastWest Dennis, MA
July
Weather in July
July is a pleasant summer month in West Dennis, Massachusetts, with an average temperature ranging between max 71.6°F (22°C) and min 67.6°F (19.8°C).Temperature
The embrace of July brings a minor uplift in the average high-temperature, shifting from a refreshing 63.5°F (17.5°C) in June to a pleasant 71.6°F (22°C). West Dennis's nighttime temperatures in July reveal a minimal variation from the daytime highs, averaging at a refreshing 67.6°F (19.8°C).Humidity
June and July, with an average relative humidity of 84%, are the most humid months.Rainfall
In West Dennis, in July, it is raining for 12.3 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, there are 129 rainfall days, and 14.21" (361mm) of precipitation is accumulated.Snowfall
In West Dennis, snow does not fall in May through November.Ocean temperature
In West Dennis, in July, the average water temperature is 65.8°F (18.8°C).Note: For the majority of people, swimming in water at 65.8°F (18.8°C) is not enjoyable. The challenge of controlling breathing escalates as the temperature decreases 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 July, 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.
Sunshine
In July, the average sunshine is 10.5h.UV index
July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 6 in July translates into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 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: 14h and 48min
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 30min
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: 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: 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: 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: 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).





