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

September weather forecast and climate
Sewaren, NJ

Ocean temperature

In Sewaren, New Jersey, the average seawater temperature in September is 70.2°F (21.2°C).
Note: 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

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

What is the ocean temperature in September in Sewaren?

In Sewaren, the average seawater temperature in September is 70.2°F (21.2°C). Swimming in 70.2°F (21.2°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

How many hours of daylight does Sewaren have in September?

In Sewaren, New Jersey, the average length of the day in September is 12.4h.
Average sea temperature in September - Sewaren, 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 - Sewaren, NJ
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.3h).