August weather forecast
West Sayville, NY

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Weather in August

The last month of the summer, August, is another warm month in West Sayville, New York, with an average temperature ranging between min 71.8°F (22.1°C) and max 78.1°F (25.6°C).

Temperature

West Sayville's temperatures tend to reach their peak averages in August, with a high of 78.1°F (25.6°C) and a low of 71.8°F (22.1°C).

Humidity

In August, the average relative humidity is 74%.

Rainfall

In August, the rain falls for 15.7 days. Throughout August, 3.27" (83mm) of precipitation is accumulated. In West Sayville, during the entire year, the rain falls for 155.3 days and collects up to 34.84" (885mm) of precipitation.

Snowfall

April, June through September and November are months without snowfall.

Ocean temperature

The month with the warmest seawater is August, with an average ocean temperature of 73.9°F (23.3°C).
Note: Given an individual's cold sensitivity, considering factors like sunshine, wind, and air temperature, a brief swim in 73.9°F (23.3°C) water might be pleasurable. (FYI: The standard water temperature for Olympic swimming contests is 77°F (25°C) to 82.4°F (28°C).)

Daylight

In August, the average length of the day is 13h and 45min.
On the first day of the month, sunrise is at 5:49 am and sunset at 8:07 pm. On the last day of August, in West Sayville, sunrise is at 6:19 am and sunset at 7:25 pm EDT.

Sunshine

In West Sayville, the average sunshine in August is 10.7h.

UV index

The months with the highest UV index 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 unprotected exposure to Sun's UV rays for average individuals.
Note: A daily high UV index of 6 in August leads to these guidelines:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. 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. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be attentive! The UV exposure is heightened with reflections from sand and water.
Updated: Jun 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year?

August is the month when West Sayville, New York, experiences its warmest temperatures, averaging a high of 78.1°F (25.6°C) and a low of 71.8°F (22.1°C).

What are August temperatures?

The average high-temperature and low-temperature during August are 78.1°F (25.6°C) and 71.8°F (22.1°C) respectively.

What is the average humidity in August?

In August, the average relative humidity is 74%.

How much does it rain in August?

In West Sayville, in August, during 15.7 rainfall days, 3.27" (83mm) of precipitation is typically accumulated.

When it does not snow?

April, June through September and November are months without snowfall in West Sayville.

When is the ocean warmest?

The month with the warmest seawater is August, with an average ocean temperature of 73.9°F (23.3°C).

What is the water temperature in August?

In August, the average ocean temperature is 73.9°F (23.3°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 73.9°F (23.3°C) water may be enjoyable.

What is the average length of the day in August?

The average day length in August is 13h and 45min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 5:49 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:25 pm EDT.

How long on average sun shines in August?

The average sunshine duration in August is 10.7h.

What is the month with the highest UV index?

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

What is the UV index intensity in August?

The average daily maximum UV index in August is 6. A UV Index value 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
West Sayville, NY

Average temperature in August - West Sayville, NY
  • Average high temperature in August: 78.1°F

The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in August: 71.8°F

The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in August
West Sayville, NY

Average pressure in August - West Sayville, NY
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
West Sayville, NY

Average wind speed in August - West Sayville, NY
  • Average wind speed in August: 9mph

The windiest month (with the highest average wind speed) is January (13.8mph).
The calmest months (with the lowest average wind speed) are July and August (9mph).

Average humidity in August
West Sayville, NY

Average humidity in August - West Sayville, NY
  • Average humidity in August: 74%

The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).

Average rainfall in August
West Sayville, NY

Average rainfall in August - West Sayville, NY
  • Average rainfall in August: 3.27"

The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is January (2.17").

Average rainfall days in August
West Sayville, NY

Average rainfall days in August - West Sayville, NY
  • Average rainfall days in August: 15.7 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in August
West Sayville, NY

Average snowfall in August - West Sayville, NY
  • Average snowfall in August: 0"

The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, June, July, August, September and November (0").

Average snowfall days in August
West Sayville, NY

Average snowfall days in August - West Sayville, NY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in August
West Sayville, NY

Average sea temperature in August - West Sayville, NY
  • Average sea temperature in August: 74°F

The best month for swimming (with the highest average sea temperature) is August (74°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).

Average daylight in August /
Average sunshine in August
West Sayville, NY

Average daylight in August / Average sunshine in August - West Sayville, NY
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in August
West Sayville, NY

Average sunshine days in August - West Sayville, NY
  • Average sunshine days in August: 12.3 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in August
West Sayville, NY

Average UV index in August - West Sayville, 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).

Average cloud cover in August
West Sayville, NY

Average cloud cover in August - West Sayville, NY
  • Average cloud cover in August: 27

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in August
West Sayville, NY

Average visibility in August - West Sayville, 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).

West Sayville, New York, USA

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