August weather forecast
Shelter Island, NY

Weather in August

The last month of the summer, August, is also a moderately hot month in Shelter Island, New York, with an average temperature fluctuating between 75.9°F (24.4°C) and 71.2°F (21.8°C).

Temperature

The warmest month is August, with an average high-temperature of 75.9°F (24.4°C) and an average low-temperature of 71.2°F (21.8°C).

Humidity

In August, the average relative humidity in Shelter Island is 77%.

Rainfall

In Shelter Island, during August, the rain falls for 14.9 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Shelter Island, during the entire year, the rain falls for 154.1 days and collects up to 34.92" (887mm) of precipitation.

Snowfall

In Shelter Island, snow does not fall in April through October.

Daylight

In August, the average length of the day is 13h and 46min.
On the first day of August in Shelter Island, sunrise is at 5:45 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 7:24 pm EDT.

Sunshine

July and August, with an average of 10.6h of sunshine, are months with the most sunshine in Shelter Island.

UV index

The months with the highest UV index in Shelter Island are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. 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.
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FAQ

What is the warmest month in Shelter Island?

The warmest month in Shelter Island is August, with an average high-temperature of 75.9°F (24.4°C) and an average low-temperature of 71.2°F (21.8°C).

What is the temperature in August in Shelter Island?

In Shelter Island, in August, the average high-temperature is 75.9°F (24.4°C), and the average low-temperature is 71.2°F (21.8°C).

What is the average humidity in August in Shelter Island?

In August, the average relative humidity in Shelter Island is 77%.

How much does it rain in Shelter Island in August?

In August, in Shelter Island, New York, the rain falls for 14.9 days. Throughout August, 2.76" (70mm) of precipitation is accumulated.

When it does not snow in Shelter Island?

In Shelter Island, snow does not fall in April through October.

What is the average length of the day in August in Shelter Island?

In Shelter Island, New York, the average day length in August is 13h and 46min.

When is the sunrise / sunset in August in Shelter Island?

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 6:14 am and sunset at 7:24 pm EDT.

What is the month with the most sunshine in Shelter Island?

The months with the most sunshine in Shelter Island are July and August, with an average of 10.6h of sunshine.

How long on average sun shines in August in Shelter Island?

In August, the average sunshine duration in Shelter Island, New York, is 10.6h.

What is the month with the highest UV index in Shelter Island?

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

What is the UV index reading in August in Shelter Island?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat 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
Shelter Island, NY

Average temperature in August - Shelter Island, NY
  • Average high temperature in August: 75.9°F

The warmest month (with the highest average high temperature) is August (75.9°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in August: 71.2°F

The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).

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Average pressure in August
Shelter Island, NY

Average pressure in August - Shelter Island, NY
  • 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
Shelter Island, NY

Average wind speed in August - Shelter Island, NY
  • Average wind speed in August: 10.6mph

The windiest month (with the highest average wind speed) is January (16mph).
The calmest month (with the lowest average wind speed) is July (10.4mph).

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Average humidity in August
Shelter Island, NY

Average humidity in August - Shelter Island, NY
  • Average humidity in August: 77%

The months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is November (72%).

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Average rainfall in August
Shelter Island, NY

Average rainfall in August - Shelter Island, NY
  • Average rainfall in August: 2.76"

The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (2.17").

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Average rainfall days in August
Shelter Island, NY

Average rainfall days in August - Shelter Island, NY
  • Average rainfall days in August: 14.9 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall in August
Shelter Island, NY

Average snowfall in August - Shelter Island, NY
  • Average snowfall in August: 0"

The month with the highest snowfall is March (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Shelter Island, NY

Average snowfall days in August - Shelter Island, NY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.2 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
Shelter Island, NY

Average daylight in August / Average sunshine in August - Shelter Island, NY
  • Average daylight in August: 13h and 46min

The month with the longest days is June (Average daylight: 15h and 5min).
The month with the shortest days is December (Average daylight: 9h and 17min).

  • Average sunshine in August: 10h and 36min

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

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Average sunshine days in August
Shelter Island, NY

Average sunshine days in August - Shelter Island, NY
  • Average sunshine days in August: 13.9 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is February (12.8 days).

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Average UV index in August
Shelter Island, NY

Average UV index in August - Shelter Island, NY
  • 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 and December (UV index 2).

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Average cloud cover in August
Shelter Island, NY

Average cloud cover in August - Shelter Island, NY
  • Average cloud cover in August: 27

The month with the most cloud cover is December (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in August
Shelter Island, NY

Average visibility in August - Shelter Island, NY
  • 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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