August weather forecastHarwich Port, MA
August
Weather in August
The last month of the summer, August, is another pleasant month in Harwich Port, Massachusetts, with an average temperature varying between 68.2°F (20.1°C) and 71.6°F (22°C).Temperature
In Harwich Port, August is identified by the highest average temperatures, reaching a peak of 71.6°F (22°C) and a low of 68.2°F (20.1°C).Humidity
In Harwich Port, Massachusetts, the average relative humidity in August is 82%.Rainfall
In Harwich Port, Massachusetts, in August, it is raining for 12.1 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, in Harwich Port, there are 142.4 rainfall days, and 22.09" (561mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Ocean temperature
The month with the warmest seawater is August, with an average ocean temperature of 67.5°F (19.7°C).Note: For most, swimming in 67.5°F (19.7°C) is not a pleasant experience. As the temperature falls from 69.8°F (21°C) to 59°F (15°C), controlling one's breathing becomes more difficult.
Daylight
In Harwich Port, the average length of the day in August is 13h and 48min.On the first day of the month, sunrise is at 5:35 am and sunset at 7:57 pm. On the last day of August, sunrise is at 6:05 am and sunset at 7:14 pm EDT.
Sunshine
With an average of 10.7h of sunshine, August has the most sunshine of the year.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 health hazard from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 6 in August leads to these guidelines:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Harwich Port, MA
- Average high temperature in August: 71.6°F
The warmest month (with the highest average high temperature) is August (71.6°F).
The months with the lowest average high temperature are January and February (39°F).
- Average low temperature in August: 68.2°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 (31.6°F).
Average pressure in August
Harwich Port, MA
- Average pressure in August: 29.98"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 August
Harwich Port, MA
- Average wind speed in August: 11.4mph
The windiest month (with the highest average wind speed) is January (18mph).
The calmest month (with the lowest average wind speed) is August (11.4mph).
Average humidity in August
Harwich Port, MA
- Average humidity in August: 82%
The months with the highest relative humidity are June and July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall in August
Harwich Port, MA
- Average rainfall in August: 1.5"
The wettest month (with the highest rainfall) is October (2.83").
The driest month (with the least rainfall) is November (1.46").
Average rainfall days in August
Harwich Port, MA
- Average rainfall days in August: 12.1 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in August
Harwich Port, MA
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Harwich Port, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in August
Harwich Port, MA
- Average sea temperature in August: 67.5°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 August /
Average sunshine in August
Harwich Port, MA
- Average daylight in August: 13h 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 August: 10h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in August
Harwich Port, MA
- Average sunshine days in August: 17.6 days
The month with the most sunshine days is August (17.6 days).
The month with the least sunshine days is January (13 days).
Average UV index in August
Harwich Port, MA
- Average UV index in August: 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 August
Harwich Port, MA
- Average cloud cover in August: 27
The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in August
Harwich Port, MA
- Average visibility in August: 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).
