August weather forecast
New York, NY

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

Weather in August

August in New York City stays hot but slightly cooler than July, with temperatures holding around 81.9°F (27.7°C). Despite the high mercury, the consistency of pleasant, warm winds lessens the intensity of the heat. This month exhibits clear skies resulting in bright and sunny days ideal for outdoor activities. Though August brings more rain than July, it does not significantly limit people's enjoyment of the summer weather. Lastly, the extended daylight hours in August provide ample time for sightseeing and exploration.

Temperature

New York, New York, records an average high-temperature of a still warm 81.9°F (27.7°C) in August, maintaining a close correlation with July's 82.9°F (28.3°C). The average low-temperature during August nights is a pleasant 68.7°F (20.4°C).

Heat index

For most parts of August, the heat index is estimated at a tropical 86°F (30°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.

Humidity

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

Rainfall

In New York, during August, the rain falls for 16.9 days and regularly aggregates up to 3.7" (94mm) of precipitation. In New York, during the entire year, the rain falls for 169 days and collects up to 36.65" (931mm) of precipitation.

Snowfall

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

Ocean temperature

The month with the warmest seawater is August, with an average ocean temperature of 74.1°F (23.4°C).
Note: Individual preferences to cold, influenced by conditions such as sunshine, wind, and surrounding temperature, play a part in the comfort of swimming in 74.1°F (23.4°C) waters. (As an aside, Olympic swimming standards dictate water temperatures from 77°F (25°C) to 82.4°F (28°C).)

Daylight

In New York, the average length of the day in August is 13h and 45min.
On the first day of August, sunrise is at 5:53 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:29 pm EDT.

Sunshine

In August, the average sunshine is 10.4h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In August, a regular UV index of 6 translates into these guidelines:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat. Attention! UV radiation is markedly stronger with water and sand reflections.

Frequently asked questions

What are August temperatures?

August temperatures vary between a high-temperature of 81.9°F (27.7°C) and a low-temperature of 68.7°F (20.4°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 86°F (30°C).

What is the least humid month?

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

What is the average humidity in August?

In August, the average relative humidity is 70%.

How many days does it rain in August?

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, snow does not fall in May through October.

What month is the ocean warmest?

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

What is the ocean temperature in August?

In New York, in August, the average water temperature is 74.1°F (23.4°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 74.1°F (23.4°C) water.

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

In New York, the average day length in August is 13h and 45min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 5:53 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:29 pm EDT.

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

The average sunshine duration in August is 10.4h.

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.

What is the UV index intensity in August?

In New York, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
New York, NY

Average temperature in August - New York, NY
  • Average high temperature in August: 81.9°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in August: 68.7°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in August
New York, NY

Average pressure in August - New York, NY
  • 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).

Average wind speed in August
New York, NY

Average wind speed in August - New York, NY
  • Average wind speed in August: 6.7mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

Average humidity in August
New York, NY

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

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

Average rainfall in August
New York, NY

Average rainfall in August - New York, NY
  • Average rainfall in August: 3.7"

The wettest month (with the highest rainfall) is July (4.02").
The driest month (with the least rainfall) is January (2.17").

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).

Average snowfall in August
New York, NY

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

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

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).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in August
New York, NY

Average sea temperature in August - New York, NY
  • Average sea temperature in August: 74.1°F

The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).

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: 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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).

Average UV index in August
New York, NY

Average UV index in August - New York, 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
New York, NY

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

The 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).

Average visibility in August
New York, NY

Average visibility in August - New York, 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).

New York, New York, USA

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