Newark
New Jersey, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Newark, NJ

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
The first month of the autumn, September, is also a moderately hot month in Newark, New Jersey, with temperature in the range of an average high of 76.6°F (24.8°C) and an average low of 59.7°F (15.4°C).

Temperature

In September, the average high-temperature marginally drops, from a moderately hot 84°F (28.9°C) in August, to a still warm 76.6°F (24.8°C). In Newark, the average low-temperature is 59.7°F (15.4°C).

Rainfall

In September, in Newark, New Jersey, the rain falls for 8.6 days. Throughout September, 3.8" (97mm) of precipitation is accumulated. In Newark, during the entire year, the rain falls for 122.2 days and collects up to 46.2" (1174.3mm) of precipitation.

Snowfall

In Newark, during the entire year, snow aggregates up to 29.5" (749.5mm).

Ocean temperature

In Newark, the average water temperature is 70.2°F (21.2°C). For swimming, a surface water temperature of 70.2°F (21.2°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

Daylight

The average length of the day in Newark is 12.4h.

Sunshine

In September, the average sunshine is 7h.

UV index

In September, the average daily maximum UV index in Newark is 6. A UV Index estimate of 6 to 7 represents a high threat to health from the exposure to the Sun's UV radiation for average individuals.
In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in September in Newark?

In September, the average high-temperature is 76.6°F (24.8°C), and the average low-temperature is 59.7°F (15.4°C).

How much does it rain in Newark in September?

In Newark, New Jersey, during September, the rain falls for 8.6 days and regularly aggregates up to 3.8" (97mm) of precipitation.

How cold is the water in September in Newark?

In Newark, the average seawater temperature in September is 70.2°F (21.2°C). For most, swimming in 70.2°F (21.2°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

How many hours of daylight does Newark have in September?

In Newark, the average length of the day in September is 12.4h.

How long on average sun shines in September in Newark?

The average sunshine in September is 7h.

How high is the UV index in September in Newark?

In Newark, New Jersey, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in September - Newark, NJ
  • Average high temperature in September: 76.7°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 59.7°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (24.5°F).

Average rainfall in September - Newark, NJ
  • Average rainfall in September: 3.8"

The wettest month (with the highest rainfall) is July (4.8").
The driest month (with the lowest rainfall) is February (2.9").

Average rainfall days in September - Newark, NJ
  • Average rainfall days in September: 8.6 days

The month with the highest number of rainy days is April (11.5 days).
The month with the lowest number of rainy days is September (8.6 days).

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

The month with the highest snowfall is February (9.5").
Months with the lowest snowfall are May, June, July, August, September and October (0").

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

The month with the highest number of snowfall days is January (5 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in September - Newark, NJ
  • Average sea temperature in September: 70.1°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 September / Average sunshine in September - Newark, NJ
  • Average daylight in September: 12.4h

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

  • Average sunshine in September: 7h

Months with most sunshine are June and July (Average sunshine: 9h).
The month with least sunshine is December (Average sunshine: 4h).

Average UV index in September - Newark, NJ
  • Average UV index in September: 6

Months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 1).