August weather forecast
Fishers Island, NY

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Weather in August

The last month of the summer, August, is another warm month in Fishers Island, New York, with an average temperature varying between 66.4°F (19.1°C) and 77.7°F (25.4°C).

Temperature

In August, the average high-temperature registers at a still moderately hot 77.7°F (25.4°C), nearly identical to July's 78.4°F (25.8°C). In the month of August, Fishers Island records a consistent average low-temperature of 66.4°F (19.1°C).

Humidity

In Fishers Island, the average relative humidity in August is 78%.

Rainfall

In Fishers Island, in August, during 15.7 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Fishers Island, during the entire year, the rain falls for 164.2 days and collects up to 34.09" (866mm) of precipitation.

Snowfall

June through October are months without snowfall.

Daylight

In Fishers Island, the average length of the day in August is 13h and 47min.
On the first day of August, sunrise is at 5:44 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 7:22 pm EDT.

Sunshine

The months with the most sunshine are July and August, with an average of 10.5h of sunshine.

UV index

The months with the highest UV index in Fishers Island are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: During August, 6 as the daily maximum UV index converts into the following advice:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature in Fishers Island?

August temperatures vary between a high-temperature of 77.7°F (25.4°C) and a low-temperature of 66.4°F (19.1°C).

What is the average humidity in August?

In August, the average relative humidity in Fishers Island is 78%.

How much does it rain in August?

In Fishers Island, in August, during 15.7 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

When it does not snow?

June through October are months without snowfall.

What is the average length of the day in August?

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

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:44 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 7:22 pm EDT.

What is the month with the most sunshine?

The months with the most sunshine are July and August, with an average of 10.5h of sunshine.

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

In Fishers Island, the average sunshine duration in August is 10.5h.

When is the highest UV index?

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

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 risk from exposure to the Sun's 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
Fishers Island, NY

Average temperature in August - Fishers Island, NY
  • Average high temperature in August: 77.7°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in August: 66.4°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

Average pressure in August
Fishers Island, NY

Average pressure in August - Fishers 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).

Average wind speed in August
Fishers Island, NY

Average wind speed in August - Fishers Island, NY
  • Average wind speed in August: 8.1mph

The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).

Average humidity in August
Fishers Island, NY

Average humidity in August - Fishers Island, NY
  • Average humidity in August: 78%

The months with the highest relative humidity are June and July (80%).
The months with the lowest relative humidity are January, March, April and November (74%).

Average rainfall in August
Fishers Island, NY

Average rainfall in August - Fishers Island, NY
  • Average rainfall in August: 2.6"

The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days in August
Fishers Island, NY

Average rainfall days in August - Fishers Island, NY
  • Average rainfall days in August: 15.7 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is February (9.6 days).

Average snowfall in August
Fishers Island, NY

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

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

Average snowfall days in August
Fishers Island, NY

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

The month with the highest number of snowfall days is February (6.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Fishers Island, NY

Average daylight in August / Average sunshine in August - Fishers Island, NY
  • 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 3min

The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in August
Fishers Island, NY

Average sunshine days in August - Fishers Island, NY
  • Average sunshine days in August: 13.2 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is June (11.9 days).

Average UV index in August
Fishers Island, NY

Average UV index in August - Fishers 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, November and December (UV index 2).

Average cloud cover in August
Fishers Island, NY

Average cloud cover in August - Fishers Island, NY
  • Average cloud cover in August: 29

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

Average visibility in August
Fishers Island, NY

Average visibility in August - Fishers 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).

Fishers Island, New York, USA

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