August weather forecast
Falmouth, MA

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Weather in August

Bathing in the remnants of summer heat, August in Falmouth, Massachusetts provides pleasant warm conditions. Temperatures linger at peak summertime warmth, reaching previously unheard details at 68.5°F (20.3°C). Despite the prevailing heat, a subtle reduction in temperature can be noted when compared to July. The moderate weather enhances the appeal of outdoor activities, from picnicking in local parks to enjoying water sports in the sea, the options are limitless. As August wanes, the town awaits the gentle season of autumn and its associated cooler conditions.

Temperature

In Falmouth, August is identified by the highest average temperatures, reaching a peak of 73.9°F (23.3°C) and a low of 68.5°F (20.3°C).

Humidity

In August, the average relative humidity is 80%.

Rainfall

The months with the least rainfall in Falmouth are July through September Rain falls for 6.1 days and accumulates 0.31" (8mm) of rain.

Snowfall

In Falmouth, snow does not fall in April through November.

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

The average length of the day in August is 13h and 48min.
On the first day of August, sunrise is at 5:37 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:16 pm EDT.

Sunshine

The month with the most sunshine is August, with an average of 10.7h of sunshine.

UV index

The months with the highest UV index in Falmouth are July and August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 6 in August translates into the following instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. 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. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.

Frequently asked questions

What time of the year is the hottest?

Falmouth notes the warmest temperatures in August, with a average high of 73.9°F (23.3°C) and a low of 68.5°F (20.3°C).

What is the usual temperature for Falmouth in August?

During August, Falmouth experiences an average high-temperature of 73.9°F (23.3°C) and a low-temperature of 68.5°F (20.3°C).

What is the average humidity in August?

In Falmouth, the average relative humidity in August is 80%.

What is the driest month?

July through September are months with the least rain in Falmouth when the rain falls for 6.1 days and typically aggregates up to 0.31" (8mm) of rain.

How many days does it rain in August?

In August, the rain falls for 6.1 days. Throughout August, 0.31" (8mm) of precipitation is accumulated.

When it does not snow?

April through November are months without snowfall.

What is the month with the warmest ocean?

August is the month with the warmest seawater, with an average ocean temperature of 68.5°F (20.3°C).

What is the ocean temperature in August?

In Falmouth, in August, the average water temperature is 68.5°F (20.3°C). Swimming in 68.5°F (20.3°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

How many hours of daylight does Falmouth have in August?

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

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 5:37 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:16 pm EDT.

What month has the most sunshine?

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

How many hours of sunshine does Falmouth have in August?

The average sunshine duration in August is 10.7h.

What are the months with the highest UV index?

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

How high is the UV index in August?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from 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
Falmouth, MA

Average temperature in August - Falmouth, MA
  • Average high temperature in August: 73.9°F

The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in August: 68.5°F

The month with the highest average low temperature is August (68.5°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in August
Falmouth, MA

Average pressure in August - Falmouth, 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).

Average wind speed in August
Falmouth, MA

Average wind speed in August - Falmouth, MA
  • Average wind speed in August: 10.2mph

The windiest month (with the highest average wind speed) is January (15.3mph).
The calmest months (with the lowest average wind speed) are July and August (10.2mph).

Average humidity in August
Falmouth, MA

Average humidity in August - Falmouth, MA
  • Average humidity in August: 80%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is November (74%).

Average rainfall in August
Falmouth, MA

Average rainfall in August - Falmouth, MA
  • Average rainfall in August: 0.31"

The wettest month (with the highest rainfall) is October (0.71").
The driest months (with the least rainfall) are July, August and September (0.31").

Average rainfall days in August
Falmouth, MA

Average rainfall days in August - Falmouth, MA
  • Average rainfall days in August: 6.1 days

The month with the highest number of rainy days is July (7.7 days).
The month with the least rainy days is September (4.6 days).

Average snowfall in August
Falmouth, MA

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

The month with the highest snowfall is December (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in August
Falmouth, MA

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

The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in August
Falmouth, MA

Average sea temperature in August - Falmouth, 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
Falmouth, MA

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

The month with the longest days is June (Average daylight: 15h and 6min).
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 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).

Average sunshine days in August
Falmouth, MA

Average sunshine days in August - Falmouth, MA
  • Average sunshine days in August: 22.8 days

The month with the most sunshine days is September (23.9 days).
The month with the least sunshine days is February (20.8 days).

Average UV index in August
Falmouth, MA

Average UV index in August - Falmouth, 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
Falmouth, MA

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

The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in August
Falmouth, MA

Average visibility in August - Falmouth, 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).

Falmouth, Massachusetts, USA

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