August weather forecast
Old Saybrook, CT

Weather in August

The last month of the summer, August, is another warm month in Old Saybrook, Connecticut, with an average temperature varying between 65.7°F (18.7°C) and 78.6°F (25.9°C).

Temperature

In August, the average high-temperature is essentially the same as in July - a still warm 78.6°F (25.9°C). In August, in Old Saybrook, the average low-temperature is 65.7°F (18.7°C).

Humidity

The average relative humidity in August is 77%.

Rainfall

In Old Saybrook, during August, the rain falls for 16.4 days and regularly aggregates up to 2.91" (74mm) of precipitation. In Old Saybrook, during the entire year, the rain falls for 166.2 days and collects up to 34.8" (884mm) of precipitation.

Snowfall

In Old Saybrook, snow does not fall in June through October.

Ocean temperature

August is the month with the warmest seawater, with an average ocean temperature of 72.1°F (22.3°C).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 72.1°F (22.3°C) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 77°F (25°C) to 82.4°F (28°C).)

Daylight

The average length of the day in August is 13h and 47min.
On the first day of August in Old Saybrook, sunrise is at 5:45 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 7:24 pm EDT.

Sunshine

With an average of 10.6h of sunshine, August has the most sunshine of the year.

UV index

The months with the highest UV index in Old Saybrook are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 in August interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in August in Old Saybrook?

In Old Saybrook, Connecticut, in August, the average high-temperature is 78.6°F (25.9°C), and the average low-temperature is 65.7°F (18.7°C).

What is the average humidity in August in Old Saybrook?

The average relative humidity in August is 77%.

How much does it rain in Old Saybrook in August?

In Old Saybrook, in August, during 16.4 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.

When it does not snow in Old Saybrook?

In Old Saybrook, snow does not fall in June through October.

What is the month with the warmest ocean in Old Saybrook?

The month with the warmest seawater is August, with an average ocean temperature of 72.1°F (22.3°C).

How warm is the water in August in Old Saybrook?

In Old Saybrook, the average seawater temperature in August is 72.1°F (22.3°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 72.1°F (22.3°C) water may be enjoyable.

How many hours of daylight does Old Saybrook have in August?

In August, the average day length in Old Saybrook, Connecticut, is 13h and 47min.

When is the sunrise / sunset in August in Old Saybrook?

In August, on the first day of the month, sunrise is at 5:45 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 7:24 pm EDT.

What month has the most sunshine in Old Saybrook?

August has the most sunshine of the year in Old Saybrook, Connecticut, with an average of 10.6h of sunshine.

How many hours of sunshine does Old Saybrook have in August?

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

What is the month with the highest UV index in Old Saybrook?

The months with the highest UV index in Old Saybrook are June through August, with an average maximum UV index of 6.

What is the UV index intensity in August in Old Saybrook?

In Old Saybrook, Connecticut, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
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
Old Saybrook, CT

Average temperature in August - Old Saybrook, CT
  • Average high temperature in August: 78.6°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in August: 65.7°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

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Average pressure in August
Old Saybrook, CT

Average pressure in August - Old Saybrook, CT
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Old Saybrook, CT

Average wind speed in August - Old Saybrook, CT
  • Average wind speed in August: 7.1mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity in August
Old Saybrook, CT

Average humidity in August - Old Saybrook, CT
  • Average humidity in August: 77%

The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in August
Old Saybrook, CT

Average rainfall in August - Old Saybrook, CT
  • Average rainfall in August: 2.91"

The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days in August
Old Saybrook, CT

Average rainfall days in August - Old Saybrook, CT
  • Average rainfall days in August: 16.4 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9 days).

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Average snowfall in August
Old Saybrook, CT

Average snowfall in August - Old Saybrook, CT
  • Average snowfall in August: 0"

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in August
Old Saybrook, CT

Average snowfall days in August - Old Saybrook, CT
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in August
Old Saybrook, CT

Average sea temperature in August - Old Saybrook, CT
  • Average sea temperature in August: 72.1°F

The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).

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Average daylight in August /
Average sunshine in August
Old Saybrook, CT

Average daylight in August / Average sunshine in August - Old Saybrook, CT
  • Average daylight in August: 13h and 47min

The month with the longest days is June (Average daylight: 15h and 7min).
The month with the shortest days is December (Average daylight: 9h and 15min).

  • Average sunshine in August: 10h and 36min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

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Average sunshine days in August
Old Saybrook, CT

Average sunshine days in August - Old Saybrook, CT
  • Average sunshine days in August: 11.9 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.7 days).

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Average UV index in August
Old Saybrook, CT

Average UV index in August - Old Saybrook, CT
  • Average UV index in August: 6

The months with the highest UV index are June, 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
Old Saybrook, CT

Average cloud cover in August - Old Saybrook, CT
  • Average cloud cover in August: 29

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in August
Old Saybrook, CT

Average visibility in August - Old Saybrook, CT
  • 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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