August weather forecastGloucester, MA
August
Weather in August
August, the last month of the summer in Gloucester, is also an agreeable month, with an average temperature varying between 65.5°F (18.6°C) and 73°F (22.8°C).Temperature
August stands out as Gloucester's warmest month, with temperatures ranging between an average high of 73°F (22.8°C) and a low of 65.5°F (18.6°C).Humidity
The average relative humidity in August is 79%.Rainfall
In August, the rain falls for 13.1 days. Throughout August, 2.24" (57mm) of precipitation is accumulated. Throughout the year, there are 150.9 rainfall days, and 30.75" (781mm) of precipitation is accumulated.Snowfall
In Gloucester, snow does not fall in May through October.Ocean temperature
August is the month with the warmest seawater, with an average ocean temperature of 66.4°F (19.1°C).Note: For most, swimming in 66.4°F (19.1°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).
Daylight
In Gloucester, the average length of the day in August is 13h and 52min.On the first day of August, sunrise is at 5:35 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 7:18 pm EDT.
Sunshine
August has the most sunshine of the year, with an average of 10.8h of sunshine.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 risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 6 during August leads to these instructions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Gloucester, MA
- Average high temperature in August: 73°F
The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in August: 65.5°F
The month with the highest average low temperature is August (65.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in August
Gloucester, MA
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Gloucester, MA
- Average wind speed in August: 8.9mph
The windiest month (with the highest average wind speed) is January (15.2mph).
The calmest months (with the lowest average wind speed) are July and August (8.9mph).
Average humidity in August
Gloucester, MA
- Average humidity in August: 79%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is November (73%).
Average rainfall in August
Gloucester, MA
- Average rainfall in August: 2.24"
The wettest month (with the highest rainfall) is December (3.23").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in August
Gloucester, MA
- Average rainfall days in August: 13.1 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in August
Gloucester, MA
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Gloucester, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in August
Gloucester, MA
- Average sea temperature in August: 66.4°F
The best month for swimming (with the highest average sea temperature) is August (66.4°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).
Average daylight in August /
Average sunshine in August
Gloucester, MA
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 10h and 48min
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 48min).
Average sunshine days in August
Gloucester, MA
- Average sunshine days in August: 15.9 days
The months with the most sunshine days are September and November (16.7 days).
The month with the least sunshine days is February (13.1 days).
Average UV index in August
Gloucester, 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
Gloucester, MA
- Average cloud cover in August: 27
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in August
Gloucester, 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).





