August weather forecast
Darien, CT

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Weather in August

The last month of the summer, August, is also a moderately hot month in Darien, Connecticut, with temperature in the range of an average high of 80.4°F (26.9°C) and an average low of 68.5°F (20.3°C).

Temperature

Darien indicates an average high-temperature of a still warm 80.4°F (26.9°C) in August, showing minor variation from July's 81.3°F (27.4°C). An average low-temperature of 68.5°F (20.3°C) is recorded during the nights in August in Darien.

Humidity

The months with the lowest humidity are April, August and November, with an average relative humidity of 72%.

Rainfall

In August, in Darien, Connecticut, the rain falls for 16.4 days. Throughout August, 3.46" (88mm) of precipitation is accumulated. In Darien, during the entire year, the rain falls for 166.4 days and collects up to 38.7" (983mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August in Darien, Connecticut, is 13h and 46min.
On the first day of August in Darien, sunrise is at 5:50 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:27 pm EDT.

Sunshine

In August, the average sunshine is 10.3h.

UV index

The months with the highest UV index in Darien, Connecticut, 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 average individuals.
Note: In August, the UV index of 6 transforms into the following advice:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

What are August temperatures in Darien?

Darien in August has an average high-temperature of 80.4°F (26.9°C) and an average low-temperature of 68.5°F (20.3°C). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in July is computed to be 86°F (30°C).

What are the least humid months in Darien?

April, August and November, with an average relative humidity of 72%, are the least humid months in Darien, Connecticut.

What is the average humidity in August in Darien?

In Darien, the average relative humidity in August is 72%.

How much does it rain in Darien in August?

In Darien, in August, it is raining for 16.4 days, with typically 3.46" (88mm) of accumulated precipitation.

When it does not snow in Darien?

May through October are months without snowfall.

How many hours of daylight does Darien have in August?

In Darien, the average day length in August is 13h and 46min.

When are sunrise and sunset in August in Darien?

In August, on the first day of the month, sunrise is at 5:50 am and sunset at 8:09 pm. On the last day of the month, in Darien, Connecticut, sunrise is at 6:20 am and sunset at 7:27 pm EDT.

How many hours of sunshine does Darien have in August?

In August, the average sunshine duration is 10.3h.

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

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

What is the UV index reading in August in Darien?

In Darien, Connecticut, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
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
Darien, CT

Average temperature in August - Darien, CT
  • Average high temperature in August: 80.4°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in August: 68.5°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

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Average pressure in August
Darien, CT

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

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Darien, CT

Average wind speed in August - Darien, CT
  • Average wind speed in August: 6.8mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in August
Darien, CT

Average humidity in August - Darien, CT
  • Average humidity in August: 72%

The month with the highest relative humidity is May (76%).
The months with the lowest relative humidity are April, August and November (72%).

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Average rainfall in August
Darien, CT

Average rainfall in August - Darien, CT
  • Average rainfall in August: 3.46"

The wettest months (with the highest rainfall) are July and December (4.17").
The driest month (with the least rainfall) is January (2.48").

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Average rainfall days in August
Darien, CT

Average rainfall days in August - Darien, CT
  • Average rainfall days in August: 16.4 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (8.8 days).

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Average snowfall in August
Darien, CT

Average snowfall in August - Darien, CT
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Darien, CT

Average snowfall days in August - Darien, CT
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Darien, CT

Average daylight in August / Average sunshine in August - Darien, CT
  • 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 18min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in August
Darien, CT

Average sunshine days in August - Darien, CT
  • Average sunshine days in August: 11.8 days

The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in August
Darien, CT

Average UV index in August - Darien, 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
Darien, CT

Average cloud cover in August - Darien, CT
  • Average cloud cover in August: 31

The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in August
Darien, CT

Average visibility in August - Darien, 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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Darien, Connecticut, USA

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