August weather forecast and climate
Rockaway, NJ

The last month of the summer, August, is another warm month in Rockaway, New Jersey, with average temperature fluctuating between 62.2°F (16.8°C) and 81.1°F (27.3°C).

Temperature

In August, the average high-temperature is almost the same as in July - a still warm 81.1°F (27.3°C). In Rockaway, the average low-temperature is 62.2°F (16.8°C).

Heat index

The average heat index is calculated to a tropical 86.2°F (30.1°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'felt air temperature', or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, clothing, metabolic differences), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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

The average relative humidity in Rockaway is 77%.

Rainfall

In August, in Rockaway, the rain falls for 9.1 days. Throughout August, 0.59" (15mm) of precipitation is accumulated. In Rockaway, during the entire year, the rain falls for 81.9 days and collects up to 6.69" (170mm) of precipitation.

Snowfall

In Rockaway, New Jersey, snow does not fall in June through September.

Ocean temperature

August is the month with the warmest seawater, with an average ocean temperature of 74.3°F (23.5°C).
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 74.3°F (23.5°C) water. (FYI: The Olympic swimming competition requires a water temperature between 77°F (25°C) and 82.4°F (28°C).)

Daylight

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

Sunshine

The average sunshine in August is 9.8h.

UV index

In August, the average daily maximum UV index in Rockaway is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in August in Rockaway?

In Rockaway, in August, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 62.2°F (16.8°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), that combines air temperature and relative humidity, in August is evaluated at 86.2°F (30.1°C).

What is the average humidity in August in Rockaway?

The average relative humidity in August in Rockaway, New Jersey, is 77%.

How many days does it rain in August in Rockaway?

In Rockaway, during August, the rain falls for 9.1 days and regularly aggregates up to 0.59" (15mm) of precipitation.

When it does not snow in Rockaway?

June through September are months without snowfall.

When is the ocean warmest in Rockaway?

With an average ocean temperature of 74.3°F (23.5°C), August is the month with the warmest seawater in Rockaway, New Jersey.

What is the ocean temperature in August in Rockaway?

In Rockaway, in August, the average water temperature is 74.3°F (23.5°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 74.3°F (23.5°C).

How many hours of daylight does Rockaway have in August?

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

How many hours of sunshine does Rockaway have in August?

In August, the average sunshine in Rockaway is 9.8h.

What is the UV index reading in August in Rockaway?

The average daily maximum UV index in August in Rockaway, New Jersey, is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.
Average temperature in August - Rockaway, NJ
  • Average high temperature in August: 27.3°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 (1.3°C).

  • Average low temperature in August: 16.8°C

The month with the highest average low temperature is July (17.8°C).
The coldest month (with the lowest average low temperature) is January (-6.2°C).

Average pressure in August - Rockaway, NJ
  • Average pressure in August: 1015.5mbar

The month with the highest atmospheric pressure is November (1019.6mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in August - Rockaway, NJ
  • Average wind speed in August: 8.2km/h

The windiest month (with the highest average wind speed) is March (13.2km/h).
The calmest month (with the lowest average wind speed) is August (8.2km/h).

Average humidity in August - Rockaway, NJ
  • Average humidity in August: 77%

Months with the highest relative humidity are February, October and December (81%).
The month with the lowest relative humidity is April (75%).

Average rainfall in August - Rockaway, NJ
  • Average rainfall in August: 15mm

The wettest month (with the highest rainfall) is July (20mm).
The driest month (with the least rainfall) is September (4mm).

Average rainfall days in August - Rockaway, NJ
  • Average rainfall days in August: 9.1 days

The month with the highest number of rainy days is July (9.5 days).
The month with the least rainy days is February (4 days).

Average snowfall in August - Rockaway, NJ
  • Average snowfall in August: 0mm

The month with the highest snowfall is March (20mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in August - Rockaway, NJ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (5.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in August - Rockaway, NJ
  • Average sea temperature in August: 23.5°C

The best month for swimming (with the highest average sea temperature) is August (23.5°C).
The coldest month (with the lowest average sea temperature) is February (4°C).

Average daylight in August / Average sunshine in August - Rockaway, NJ
  • 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: 9.8h

The month with the most sunshine is July (Average sunshine: 10.2h).
The month with the least sunshine is February (Average sunshine: 4.4h).

Average sunshine days in August - Rockaway, NJ
  • Average sunshine days in August: 19.7 days

The month with the most sunshine days is November (24.5 days).
The month with the least sunshine days is July (18.3 days).

Average UV index in August - Rockaway, NJ
  • Average UV index in August: 5

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in August - Rockaway, NJ
  • Average cloud cover in August: 36

Months with the most cloud cover are February and March (Cloud cover 51).
Months with the least cloud cover are July and August (Cloud cover 36).

Average visibility in August - Rockaway, NJ
  • Average visibility in August: 8km

Months with the highest visibility are January, March, April, November and December (9km).
Months with the lowest visibility are February, May, June, July, August, September and October (8km).