August weather forecast
Harwich, MA

Weather in August

The last month of the summer, August, is another pleasant month in Harwich, Massachusetts, with an average temperature varying between 71.6°F (22°C) and 68.2°F (20.1°C).

Temperature

With an average high-temperature of 71.6°F (22°C) and an average low-temperature of 68.2°F (20.1°C), August is the warmest month.

Humidity

In Harwich, the average relative humidity in August is 82%.

Rainfall

In Harwich, Massachusetts, during 12.1 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. Throughout the year, there are 142.4 rainfall days, and 22.09" (561mm) of precipitation is accumulated.

Snowfall

In Harwich, snow does not fall in May through October.

Daylight

In August, the average length of the day is 13h and 48min.
On the first day of August, sunrise is at 5:34 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 7:16 pm EDT.

Sunshine

The month with the most sunshine in Harwich is August, with an average of 10.7h 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 of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in August interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Harwich?

August is the warmest month, with an average high-temperature of 71.6°F (22°C) and an average low-temperature of 68.2°F (20.1°C).

What is the temperature in August in Harwich?

The average high-temperature, in August, in Harwich, is 71.6°F (22°C), while the average low-temperature is 68.2°F (20.1°C).

What is the average humidity in August in Harwich?

In August, the average relative humidity is 82%.

How many days does it rain in August in Harwich?

In Harwich, Massachusetts, in August, during 12.1 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

When it does not snow in Harwich?

May through October are months without snowfall.

How many hours of daylight does Harwich have in August?

In Harwich, Massachusetts, the average day length in August is 13h and 48min.

When is the sunrise / sunset in August in Harwich?

On the first day of August in Harwich, Massachusetts, sunrise is at 5:34 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 7:16 pm EDT.

What month has the most sunshine in Harwich?

August has the most sunshine of the year, with an average of 10.7h of sunshine.

How many hours of sunshine does Harwich have in August?

In August, the average sunshine duration in Harwich, Massachusetts, is 10.7h.

What are the months with the highest UV index in Harwich?

July and August, with an average maximum UV index of 6, are months with the highest UV index in Harwich.

What is the UV index intensity in August in Harwich?

In Harwich, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Harwich, MA

Average temperature in August - Harwich, 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).

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Average pressure in August
Harwich, MA

Average pressure in August - Harwich, 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).

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Average wind speed in August
Harwich, MA

Average wind speed in August - Harwich, 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).

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Average humidity in August
Harwich, MA

Average humidity in August - Harwich, 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%).

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Average rainfall in August
Harwich, MA

Average rainfall in August - Harwich, 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").

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Average rainfall days in August
Harwich, MA

Average rainfall days in August - Harwich, 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).

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Average snowfall in August
Harwich, MA

Average snowfall in August - Harwich, 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").

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Average snowfall days in August
Harwich, MA

Average snowfall days in August - Harwich, 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).

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Average daylight in August /
Average sunshine in August
Harwich, MA

Average daylight in August / Average sunshine in August - Harwich, MA
  • Average daylight in August: 13h and 48min

The month with the longest days is June (Average daylight: 15h and 9min).
The month with the shortest days is December (Average daylight: 9h and 13min).

  • 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).

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Average sunshine days in August
Harwich, MA

Average sunshine days in August - Harwich, 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).

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Average UV index in August
Harwich, MA

Average UV index in August - Harwich, 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).

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Average cloud cover in August
Harwich, MA

Average cloud cover in August - Harwich, 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).

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Average visibility in August
Harwich, MA

Average visibility in August - Harwich, 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).

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