August weather forecast
Old Saybrook, CT

Weather in August

August, the last month of the summer in Old Saybrook, is also a moderately hot month, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 65.7°F (18.7°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 Old Saybrook, in August, the average low-temperature is 65.7°F (18.7°C).

Humidity

In Old Saybrook, the average relative humidity in August is 77%.

Rainfall

In Old Saybrook, it is raining for 16.4 days, with typically 2.91" (74mm) of accumulated precipitation. Throughout the year, there are 166.2 rainfall days, and 34.8" (884mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall in Old Saybrook.

Ocean temperature

August is the month with the warmest seawater, with an average ocean temperature of 72.1°F (22.3°C).
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 72.1°F (22.3°C) water. (FYI: The Olympic swimming competition requires a water temperature between 77°F (25°C) and 82.4°F (28°C).)

Daylight

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

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

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 reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 in August transform into the following instructions:
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. 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. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the average humidity in August in Old Saybrook?

The average relative humidity in August is 77%.

How many days does it rain in August in Old Saybrook?

In Old Saybrook, in August, it is raining for 16.4 days, with typically 2.91" (74mm) of accumulated precipitation.

When it does not snow in Old Saybrook?

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

When is the ocean warmest in Old Saybrook?

With an average ocean temperature of 72.1°F (22.3°C), August is the month with the warmest seawater in Old Saybrook, Connecticut.

How warm is the water in August in Old Saybrook?

In August, the average ocean temperature in Old Saybrook is 72.1°F (22.3°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 72.1°F (22.3°C).

What is the average length of the day in August in Old Saybrook?

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

When are sunrise and 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, in Old Saybrook, Connecticut, sunrise is at 6:15 am and sunset at 7:24 pm EDT.

What month has the most sunshine in Old Saybrook?

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

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

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

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

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

How high is the UV index in August in Old Saybrook?

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 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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