Gloucester
Massachusetts, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Gloucester, MA

August, the last month of the summer, in Gloucester, is also an agreeable month, with average temperature ranging between min 65.5°F (18.6°C) and max 73°F (22.8°C).

Temperature

The warmest month is August, with an average high-temperature of 73°F (22.8°C) and an average low-temperature of 65.5°F (18.6°C).

Humidity

The average relative humidity in August is 79%.

Rainfall

In Gloucester, Massachusetts, it is raining for 13.1 days, with typically 2.24" (57mm) of accumulated precipitation. In Gloucester, during the entire year, the rain falls for 150.9 days and collects up to 30.75" (781mm) of precipitation.

Snowfall

May through October are months without snowfall in Gloucester.

Ocean temperature

August is the month with the warmest seawater, with an average ocean temperature of 66.4°F (19.1°C).
Note: Swimming in 66.4°F (19.1°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

Daylight

In Gloucester, the average length of the day in August is 13.9h.

Sunshine

The month with the most sunshine is August, with an average of 10.8h of sunshine.

UV index

Months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from the exposure to the Sun's UV rays for the average person.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the warmest month in Gloucester?

With an average high-temperature of 73°F (22.8°C) and an average low-temperature of 65.5°F (18.6°C), August is the warmest month in Gloucester, Massachusetts.

What is the temperature in August in Gloucester?

In August, in Gloucester, Massachusetts, the average high-temperature is 73°F (22.8°C), and the average low-temperature is 65.5°F (18.6°C).

What is the average humidity in August in Gloucester?

The average relative humidity in August in Gloucester, Massachusetts, is 79%.

How much does it rain in Gloucester in August?

In Gloucester, in August, during 13.1 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

When it does not snow in Gloucester?

May through October are months without snowfall in Gloucester.

What is the month with the warmest ocean in Gloucester?

With an average ocean temperature of 66.4°F (19.1°C), August is the month with the warmest seawater.

How cold is the water in August in Gloucester?

In Gloucester, the average seawater temperature in August is 66.4°F (19.1°C). 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).

What is the average length of the day in August in Gloucester?

In Gloucester, the average length of the day in August is 13.9h.

What month has the most sunshine in Gloucester?

August has the most sunshine of the year, with an average of 10.8h of sunshine.

How long on average sun shines in August in Gloucester?

The average sunshine in August is 10.8h.

When is the highest UV index in Gloucester?

Months with the highest UV index in Gloucester, Massachusetts, are July and August, with an average maximum UV index of 6.

What is the UV index intensity in August in Gloucester?

In Gloucester, Massachusetts, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat from the exposure to the Sun's UV rays.
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 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").
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).
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: 13.9h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in August: 10.8h

The month with the most sunshine is August (Average sunshine: 10.8h).
Months with the least sunshine are February and December (Average sunshine: 4.8).

Average UV index in August - Gloucester, MA
  • Average UV index in August: 6

Months with the highest UV index are July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).