August weather forecast
Eastham, MA

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Weather in August

August, the last month of the summer in Eastham, is another pleasant month, with temperature in the range of an average high of 71.1°F (21.7°C) and an average low of 67.6°F (19.8°C).

Temperature

Temperature readings reach their annual highs in August, averaging 71.1°F (21.7°C) and a minimum average of 67.6°F (19.8°C).

Humidity

In Eastham, the average relative humidity in August is 83%.

Rainfall

In Eastham, Massachusetts, in August, during 11.5 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. Throughout the year, there are 136.1 rainfall days, and 17.24" (438mm) of precipitation is accumulated.

Snowfall

In Eastham, Massachusetts, snow does not fall in May through October.

Daylight

The average length of the day in August is 13h and 49min.
On the first day of the month, sunrise is at 5:34 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

August has the most sunshine of the year in Eastham, with an average of 10.6h of sunshine.

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. 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.
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Frequently asked questions

What time of the year is the hottest in Eastham?

With average temperatures fluctuating between a high of 71.1°F (21.7°C) and a low of 67.6°F (19.8°C), August stands out as the warmest month in Eastham, Massachusetts.

What is the temperature in August in Eastham?

In Eastham, 71.1°F (21.7°C) is the average high-temperature and 67.6°F (19.8°C) is the average low-temperature during August.

What is the average humidity in August in Eastham?

The average relative humidity in August in Eastham is 83%.

How many days does it rain in August in Eastham?

In Eastham, Massachusetts, in August, during 11.5 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

When it does not snow in Eastham?

May through October are months without snowfall in Eastham, Massachusetts.

How many hours of daylight does Eastham have in August?

The average day length in August is 13h and 49min.

When is the sunrise / sunset in August in Eastham?

In August, on the first day of the month, sunrise is at 5:34 am and sunset at 7:57 pm. On the last day of the month, in Eastham, sunrise is at 6:05 am and sunset at 7:14 pm EDT.

What month has the most sunshine in Eastham?

The month with the most sunshine in Eastham, Massachusetts, is August, with an average of 10.6h of sunshine.

How many hours of sunshine does Eastham have in August?

In Eastham, the average sunshine duration in August is 10.6h.

When is the highest UV index in Eastham?

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

How high is the UV index in August in Eastham?

In Eastham, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Eastham, MA

Average temperature in August - Eastham, MA
  • Average high temperature in August: 71.1°F

The warmest month (with the highest average high temperature) is August (71.1°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in August: 67.6°F

The month with the highest average low temperature is August (67.6°F).
The coldest months (with the lowest average low temperature) are January and February (31.6°F).

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Average pressure in August
Eastham, MA

Average pressure in August - Eastham, 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
Eastham, MA

Average wind speed in August - Eastham, MA
  • Average wind speed in August: 11.6mph

The windiest month (with the highest average wind speed) is January (18.5mph).
The calmest months (with the lowest average wind speed) are July and August (11.6mph).

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Average humidity in August
Eastham, MA

Average humidity in August - Eastham, MA
  • Average humidity in August: 83%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (74%).

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Average rainfall in August
Eastham, MA

Average rainfall in August - Eastham, MA
  • Average rainfall in August: 1.26"

The wettest month (with the highest rainfall) is October (2.17").
The driest months (with the least rainfall) are February and November (1.18").

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Average rainfall days in August
Eastham, MA

Average rainfall days in August - Eastham, MA
  • Average rainfall days in August: 11.5 days

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (7.3 days).

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Average snowfall in August
Eastham, MA

Average snowfall in August - Eastham, MA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Eastham, MA

Average snowfall days in August - Eastham, MA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (6.1 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
Eastham, MA

Average daylight in August / Average sunshine in August - Eastham, MA
  • Average daylight in August: 13h and 5min

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 4min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

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Average sunshine days in August
Eastham, MA

Average sunshine days in August - Eastham, MA
  • Average sunshine days in August: 18.2 days

The month with the most sunshine days is August (18.2 days).
The month with the least sunshine days is December (13.1 days).

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Average UV index in August
Eastham, MA

Average UV index in August - Eastham, 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
Eastham, MA

Average cloud cover in August - Eastham, MA
  • Average cloud cover in August: 28

The month with the most cloud cover is December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in August
Eastham, MA

Average visibility in August - Eastham, 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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Eastham, Massachusetts, USA

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