July weather forecastPlymouth, MA
July
Weather in July
Joining the summer bandwagon, July in Plymouth, Massachusetts, boasts the highest temperatures, fewer clouds, and bustling beaches. With its characteristic summer hotness, July's weather stands synonymous with beach vacations, sea-surfing, and uninterrupted outdoor leisure. Aligning with the trend, July hits the maximum temperature of 77.5°F (25.3°C), much to the delight of sun-seekers. With the city in its summer prime, July beckons tourists worldwide to take advantage of Plymouth's sunny harbor, historic sites, and lively weather. As the mercury soars in July, so does the excitement, attributing to the city's summer allure.Temperature
In Plymouth, July records the highest average temperatures, peaking at 77.5°F (25.3°C) and reaching a low of 65.8°F (18.8°C).Humidity
July is the most humid month, with an average relative humidity of 80%.Rainfall
The months with the most rainfall are July and October, with an average 1.65" (42mm) of precipitation.Snowfall
May through October are months without snowfall.Ocean temperature
In Plymouth, Massachusetts, the average seawater temperature in July is 66.2°F (19°C).Note: For the majority, swimming in 66.2°F (19°C) does not offer a pleasant experience. Below 69.8°F (21°C), the difficulty in controlling breathing escalates.
Daylight
In Plymouth, Massachusetts, the average length of the day in July is 14h and 53min.On the first day of the month, sunrise is at 5:11 am and sunset at 8:21 pm. On the last day of July, sunrise is at 5:36 am and sunset at 8:02 pm EDT.
Sunshine
In Plymouth, Massachusetts, the average sunshine in July is 10.3h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 6 during July translates into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Plymouth, MA
- Average high temperature in July: 77.5°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (35.8°F).
- Average low temperature in July: 65.8°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in July
Plymouth, MA
- Average pressure in July: 29.95"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
Plymouth, MA
- Average wind speed in July: 8mph
The windiest month (with the highest average wind speed) is January (12.3mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).
Average humidity in July
Plymouth, MA
- Average humidity in July: 80%
The month with the highest relative humidity is July (80%).
The months with the lowest relative humidity are March, April and November (74%).
Average rainfall in July
Plymouth, MA
- Average rainfall in July: 1.65"
The wettest months (with the highest rainfall) are July and October (1.65").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in July
Plymouth, MA
- Average rainfall days in July: 14 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in July
Plymouth, MA
- Average snowfall in July: 0"
The month with the highest snowfall is March (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Plymouth, MA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in July
Plymouth, MA
- Average sea temperature in July: 66.2°F
The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is February (38.2°F).
Average daylight in July /
Average sunshine in July
Plymouth, MA
- Average daylight in July: 14h and 54min
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 18min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).
Average sunshine days in July
Plymouth, MA
- Average sunshine days in July: 14.8 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is July (14.8 days).
Average UV index in July
Plymouth, MA
- Average UV index in July: 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, March, November and December (UV index 2).
Average cloud cover in July
Plymouth, MA
- Average cloud cover in July: 32
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in July
Plymouth, 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).
