July weather forecast
Newark, NJ

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A mirrored reflection of Newark City in New Jersey, on the Passaic River
A mirrored reflection of Newark City in New Jersey, on the Passaic River

Weather in July

July brings the peak of summer to Newark, New Jersey, USA, with high temperatures, long daylight hours, and a typical buzz of outdoor activities. Although the cloud% decreases to 30%, the instances of rainfall appear slightly higher. Abundance of sunlight is recorded with an average of 10.6 hours of sunshine per day. The warmest sea temperatures of the year, reaching 72.1°F (22.3°C), draw locals and tourists to the coastal areas for a reprieve from the heat. However, precautions must be taken due to a UV index of 6, the highest for the year.

Temperature

July is the month that records the highest temperatures, with averages ranging from a high of 83.1°F (28.4°C) to a low of 68.9°F (20.5°C).

Heat index

The heat index value for July is estimated at a tropical 89.6°F (32°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

In Newark, the average relative humidity in July is 73%.

Rainfall

The wettest months are July and December, with an average 3.19" (81mm) of rainfall.

Snowfall

May through October are months without snowfall.

Ocean temperature

In July, the average ocean temperature in Newark is 72.1°F (22.3°C).
Note: While a person's sensitivity to cold is personal, factors like sunshine, wind, and the temperature can influence their comfort in 72.1°F (22.3°C) waters. Olympians, for perspective, swim in waters between 77°F (25°C) and 82.4°F (28°C).

Daylight

In July, the average length of the day is 14h and 45min.
On the first day of the month, sunrise is at 5:29 am and sunset at 8:31 pm. On the last day of July, in Newark, sunrise is at 5:53 am and sunset at 8:13 pm EDT.

Sunshine

With an average of 10.6h of sunshine, July has the most sunshine of the year.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Newark. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In July, the maximum UV index of 6 suggests these recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Stay aware! UV radiation is magnified when reflecting off sand and water.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months?

July, marked by an average high-temperature of 83.1°F (28.4°C) and a low-temperature of 68.9°F (20.5°C), is the warmest month.

How hot is July?

In July, the average high-temperature and low-temperature are 83.1°F (28.4°C) and 68.9°F (20.5°C) respectively. In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 89.6°F (32°C).

What is the average humidity in July?

The average relative humidity in July is 73%.

What is the wettest month?

The wettest months are July and December, with an average 3.19" (81mm) of rainfall.

How much does it rain in July?

In July, the rain falls for 17.1 days. Throughout July, 3.19" (81mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

What is the water temperature in July?

In Newark, the average seawater temperature in July is 72.1°F (22.3°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 72.1°F (22.3°C) water may be enjoyable.

How many hours of daylight does Newark have in July?

The average day length in July is 14h and 45min.

When is the sunrise / sunset in July?

In July, on the first day of the month, sunrise is at 5:29 am and sunset at 8:31 pm. On the last day of the month, in Newark, sunrise is at 5:53 am and sunset at 8:13 pm EDT.

What month has the most sunshine?

July has the most sunshine of the year in Newark, with an average of 10.6h of sunshine.

How long on average sun shines in July?

In July, the average sunshine duration is 10.6h.

What is the month with 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 July?

The average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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 July
Newark, NJ

Average temperature in July - Newark, NJ
  • Average high temperature in July: 83.1°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (36.3°F).

  • Average low temperature in July: 68.9°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in July
Newark, NJ

Average pressure in July - Newark, NJ
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in July
Newark, NJ

Average wind speed in July - Newark, NJ
  • Average wind speed in July: 6.3mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).

Average humidity in July
Newark, NJ

Average humidity in July - Newark, NJ
  • Average humidity in July: 73%

The months with the highest relative humidity are February, May, October and December (76%).
The months with the lowest relative humidity are April and August (72%).

Average rainfall in July
Newark, NJ

Average rainfall in July - Newark, NJ
  • Average rainfall in July: 3.19"

The wettest months (with the highest rainfall) are July and December (3.19").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in July
Newark, NJ

Average rainfall days in July - Newark, NJ
  • Average rainfall days in July: 17.1 days

The months with the highest number of rainy days are May and July (17.1 days).
The month with the least rainy days is November (9.5 days).

Average snowfall in July
Newark, NJ

Average snowfall in July - Newark, NJ
  • Average snowfall in July: 0"

The month with the highest snowfall is March (3.46").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Newark, NJ

Average snowfall days in July - Newark, NJ
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in July
Newark, NJ

Average sea temperature in July - Newark, NJ
  • Average sea temperature in July: 72.1°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 July /
Average sunshine in July
Newark, NJ

Average daylight in July / Average sunshine in July - Newark, NJ
  • Average daylight in July: 14h and 5min

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 July: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in July
Newark, NJ

Average sunshine days in July - Newark, NJ
  • Average sunshine days in July: 12.6 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (11.4 days).

Average UV index in July
Newark, NJ

Average UV index in July - Newark, NJ
  • Average UV index in July: 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 July
Newark, NJ

Average cloud cover in July - Newark, NJ
  • Average cloud cover in July: 30

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

Average visibility in July
Newark, NJ

Average visibility in July - Newark, NJ
  • Average visibility in July: 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).

Newark, New Jersey, USA

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