August weather forecast and climate
New York, NY

The sunset view over skyscrapers in New York City, USA
The sunset view over skyscrapers in New York City, USA

Weather in August

August, the last month of the summer, in New York, is another warm month, with average temperature varying between 81.9°F (27.7°C) and 68.7°F (20.4°C).

Temperature

In August, the average high-temperature is relatively the same as in July - a still warm 81.9°F (27.7°C). The average low-temperature, in August, is 68.7°F (20.4°C).

Heat index

The average heat index is calculated to a hot 86.2°F (30.1°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'feels like', or 'apparent temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like differences in body mass, height, and shape, metabolic differences, pregnancy, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

August is the least humid month in New York, with an average relative humidity of 70%.

Rainfall

In New York, during 16.9 rainfall days, 3.7" (94mm) of precipitation is typically accumulated. Throughout the year, in New York, there are 169 rainfall days, and 36.65" (931mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in New York, New York.

Ocean temperature

August is the month with the warmest seawater in New York, with an average ocean temperature of 74.1°F (23.4°C).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 74.1°F (23.4°C) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 77°F (25°C) to 82.4°F (28°C).)

Daylight

The average length of the day in New York, New York, is 13.7h.

Sunshine

In New York, the average sunshine in August is 10.4h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to the Sun's UV rays for the average person.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in August in New York?

In New York, New York, in August, the average high-temperature is 81.9°F (27.7°C), and the average low-temperature is 68.7°F (20.4°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that combines relative humidity and air temperature, is evaluated at 86.2°F (30.1°C).

What is the least humid month in New York?

With an average relative humidity of 70%, August is the least humid month in New York.

What is the average humidity in August in New York?

In August, the average relative humidity is 70%.

How many days does it rain in August in New York?

In New York, in August, it is raining for 16.9 days, with typically 3.7" (94mm) of accumulated precipitation.

When it does not snow in New York?

In New York snow does not fall in May through October.

What month is the ocean warmest in New York?

August is the month with the warmest seawater in New York, New York, with an average ocean temperature of 74.1°F (23.4°C).

What is the water temperature in August in New York?

In August, the average ocean temperature in New York, New York, is 74.1°F (23.4°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 74.1°F (23.4°C).

What is the average length of the day in August in New York?

In August, the average length of the day in New York is 13.7h.

How many hours of sunshine does New York have in August?

In New York, New York, the average sunshine in August is 10.4h.

What are the months with the highest UV index in New York?

Months with the highest UV index in New York are June through August, with an average maximum UV index of 6.

What is the UV index reading in August in New York?

In New York, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays.

Average temperature in August
New York, NY

Average temperature in August - New York, NY
  • Average high temperature in August: 27.7°C

The warmest month (with the highest average high temperature) is July (28.3°C).
The month with the lowest average high temperature is January (2.5°C).

  • Average low temperature in August: 20.4°C

The month with the highest average low temperature is July (20.8°C).
The coldest month (with the lowest average low temperature) is January (-3.3°C).

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Average pressure in August
New York, NY

Average pressure in August - New York, NY
  • Average pressure in August: 1015.4mbar

The month with the highest atmospheric pressure is November (1019.4mbar).
The month with the lowest atmospheric pressure is June (1013.6mbar).

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Average wind speed in August
New York, NY

Average wind speed in August - New York, NY
  • Average wind speed in August: 10.8km/h

The windiest month (with the highest average wind speed) is January (16km/h).
The calmest month (with the lowest average wind speed) is July (10.7km/h).

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Average humidity in August
New York, NY

Average humidity in August - New York, NY
  • Average humidity in August: 70%

Months with the highest relative humidity are February and December (76%).
The month with the lowest relative humidity is August (70%).

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Average rainfall in August
New York, NY

Average rainfall in August - New York, NY
  • Average rainfall in August: 94mm

The wettest month (with the highest rainfall) is July (102mm).
The driest month (with the least rainfall) is January (55mm).

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Average rainfall days in August
New York, NY

Average rainfall days in August - New York, NY
  • Average rainfall days in August: 16.9 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall in August
New York, NY

Average snowfall in August - New York, NY
  • Average snowfall in August: 0mm

The month with the highest snowfall is March (67mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in August
New York, NY

Average snowfall days in August - New York, NY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.8 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in August
New York, NY

Average sea temperature in August - New York, NY
  • Average sea temperature in August: 23.4°C

The best month for swimming (with the highest average sea temperature) is August (23.4°C).
The coldest month (with the lowest average sea temperature) is February (4.3°C).

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Average daylight in August /
Average sunshine in August
New York, NY

Average daylight in August / Average sunshine in August - New York, NY
  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in August: 10.4h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

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Average sunshine days in August
New York, NY

Average sunshine days in August - New York, NY
  • Average sunshine days in August: 11.4 days

The month with the most sunshine days is January (17.9 days).
The month with the least sunshine days is June (9.8 days).

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Average UV index in August
New York, NY

Average UV index in August - New York, NY
  • Average UV index in August: 6

Months with the highest UV index are June, July and August (UV index 6).
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
New York, NY

Average cloud cover in August - New York, NY
  • Average cloud cover in August: 30

Months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in August
New York, NY

Average visibility in August - New York, NY
  • Average visibility in August: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

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