August weather forecastMattapoisett, MA
August
Weather in August
August, the last month of the summer in Mattapoisett, is also a moderately hot month, with temperature in the range of an average low of 65.8°F (18.8°C) and an average high of 78.3°F (25.7°C).Temperature
The shift from July to August is characterized by an average high-temperature of a still warm 78.3°F (25.7°C), not significantly different from the 78.4°F (25.8°C) of July. The average temperature during August nights dips to an enjoyable 65.8°F (18.8°C).Humidity
The average relative humidity in August is 78%.Rainfall
In August, the rain falls for 12.1 days. Throughout August, 1.34" (34mm) of precipitation is accumulated. Throughout the year, there are 133.2 rainfall days, and 17.2" (437mm) of precipitation is accumulated.Snowfall
In Mattapoisett, Massachusetts, snow does not fall in May through October.Ocean temperature
August is the month with the warmest seawater, with an average ocean temperature of 68.5°F (20.3°C).Note: Most people do not find swimming enjoyable in water of 68.5°F (20.3°C). The task of controlling breathing becomes tougher as the temperature drops from 69.8°F (21°C) to 59°F (15°C).
Daylight
In Mattapoisett, the average length of the day in August is 13h and 48min.On the first day of August, sunrise is at 5:38 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:17 pm EDT.
Sunshine
The month with the most sunshine in Mattapoisett, Massachusetts, is August, with an average of 10.6h of sunshine.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 6 in August suggests the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Mattapoisett, MA
- Average high temperature in August: 78.3°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in August: 65.8°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in August
Mattapoisett, MA
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Mattapoisett, MA
- Average wind speed in August: 8mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (8mph).
Average humidity in August
Mattapoisett, MA
- Average humidity in August: 78%
The months with the highest relative humidity are June and July (80%).
The months with the lowest relative humidity are March, April and November (74%).
Average rainfall in August
Mattapoisett, MA
- Average rainfall in August: 1.34"
The wettest month (with the highest rainfall) is October (1.93").
The driest month (with the least rainfall) is September (1.06").
Average rainfall days in August
Mattapoisett, MA
- Average rainfall days in August: 12.1 days
The month with the highest number of rainy days is July (13.4 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in August
Mattapoisett, MA
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Mattapoisett, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in August
Mattapoisett, MA
- Average sea temperature in August: 68.4°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 August /
Average sunshine in August
Mattapoisett, 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 36min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in August
Mattapoisett, MA
- Average sunshine days in August: 16.1 days
The months with the most sunshine days are November and December (18.3 days).
The month with the least sunshine days is April (14.4 days).
Average UV index in August
Mattapoisett, MA
- Average UV index in August: 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 August
Mattapoisett, MA
- Average cloud cover in August: 28
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
Mattapoisett, 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).
