July weather forecastYarmouth Port, MA
July
Weather in July
July in Yarmouth Port, Massachusetts, is an agreeable summer month, with an average temperature fluctuating between 72.1°F (22.3°C) and 67.3°F (19.6°C).Temperature
As June transitions into July, a subtle temperature shift is observed, with average highs adjusting from an enjoyable 64°F (17.8°C) to a pleasant 72.1°F (22.3°C). In Yarmouth Port, July nights experience a modest descent in temperature from daily peaks, cooling down to an average of 67.3°F (19.6°C).Humidity
May through July, with an average relative humidity of 83%, are the most humid months.Rainfall
In Yarmouth Port, in July, it is raining for 12.9 days, with typically 1.1" (28mm) of accumulated precipitation. In Yarmouth Port, during the entire year, the rain falls for 129.6 days and collects up to 13.94" (354mm) of precipitation.Snowfall
May through November are months without snowfall.Daylight
In July, the average length of the day is 14h and 51min.On the first day of the month, sunrise is at 5:10 am and sunset at 8:19 pm. On the last day of July, in Yarmouth Port, sunrise is at 5:34 am and sunset at 7:59 pm EDT.
Sunshine
In Yarmouth Port, the average sunshine in July is 10.6h.UV index
July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In July, the maximum UV index of 6 translates into these guidelines:
Deflect overexposure. Sun protection is a necessity. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Yarmouth Port, MA
- Average high temperature in July: 72.1°F
The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in July: 67.3°F
The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure in July
Yarmouth Port, 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
Yarmouth Port, MA
- Average wind speed in July: 10.5mph
The windiest month (with the highest average wind speed) is January (16.4mph).
The calmest month (with the lowest average wind speed) is August (10.4mph).
Average humidity in July
Yarmouth Port, MA
- Average humidity in July: 83%
The months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is November (74%).
Average rainfall in July
Yarmouth Port, MA
- Average rainfall in July: 1.1"
The wettest month (with the highest rainfall) is October (1.89").
The driest month (with the least rainfall) is August (0.94").
Average rainfall days in July
Yarmouth Port, MA
- Average rainfall days in July: 12.9 days
The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is February (8.1 days).
Average snowfall in July
Yarmouth Port, MA
- Average snowfall in July: 0"
The months with the highest snowfall are January and February (0.63").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in July
Yarmouth Port, MA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Yarmouth Port, 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 36min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in July
Yarmouth Port, MA
- Average sunshine days in July: 16.7 days
The month with the most sunshine days is September (18.5 days).
The month with the least sunshine days is February (14.8 days).
Average UV index in July
Yarmouth Port, 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
Yarmouth Port, MA
- Average cloud cover in July: 29
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in July
Yarmouth Port, 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).





