Weather in New Jersey, United States in September

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Visiting New Jersey, United States in September

September is one of the best months to visit New Jersey for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

September has average maximum temperatures of 25°C (77°F) which is nice and warm and makes sunbathing pleasant on clear days. The sunshine percentage is 66.8% making it sunny but overcast at times. The hours of sunshine per day are 8.3hrs making the days long and bright. September has total rainfall of 10.6cm (4.2inches) making it quite dry with only moderate showers. There are just 9.1 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days. Sea temperatures are a moderate 20°C (68°F). September is a pleasant month for swimming in New Jersey though some people may prefer warmer water.

Also consider visiting New Jersey in one of the other best months of June, July, August, for the best beach weather.

Also consider one of our other suggestions for September.

Can you sunbathe in New Jersey in September?

Yes, September is a good time for sunbathing in New Jersey.

September has average maximum temperatures of 25°C (77°F) which is nice and warm and makes sunbathing pleasant on clear days. The sunshine percentage is 66.8% making it sunny but overcast at times. The hours of sunshine per day are 8.3hrs making the days long and bright. September has total rainfall of 10.6cm (4.2inches) making it quite dry with only moderate showers. There are just 9.1 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days.

More about September temperature and sunshine.

Can you swim in New Jersey in September?

Yes, September is a pleasant month for swimming in New Jersey with moderate sea temperatures 20°C (68°F).

More about September sea temperatures.

Is September a good time to holiday in New Jersey?

Yes, September is a good time for a holiday in New Jersey.

September has average maximum temperatures of 25°C (77°F) which is nice and warm and makes sunbathing pleasant on clear days. The sunshine percentage is 66.8% making it sunny but overcast at times. The hours of sunshine per day are 8.3hrs making the days long and bright. September has total rainfall of 10.6cm (4.2inches) making it quite dry with only moderate showers. There are just 9.1 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days. Sea temperatures are a moderate 20°C (68°F). September is a pleasant month for swimming in New Jersey though some people may prefer warmer water.

More about the September temperatures and sunshine.

Is New Jersey warm in September?

Yes, New Jersey is nice and warm and makes sunbathing pleasant on clear days in September.

The average maximum temperature in New Jersey in September is 25°C (77°F). The average maximum temperature is 28°C (83°) in the previous month and 19°C (66°F) in the next month.

The average temperature in New Jersey in September is 20°C (68°F). The average temperature is 24°C (74°F) in the previous month and 14°C (58°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is New Jersey in September?

The average day light hours per day in New Jersey in September are 12.5. The sunshine percentage is 66.8% making it sunny but overcast at times. The hours of sunshine per day are 8.3hrs making the days long and bright.

More about September sunshine.

Temperature in New Jersey in September

The average maximum temperature in New Jersey in September is 25°C (77°F). The average maximum temperature is 28°C (83°F) in the previous month and 19°C (66°F) in the next month.

The average temperature in New Jersey in September is 20°C (68°F). The average temperature is 24°C (74°F) in the previous month and 14°C (58°F) in the next month.

The average minimum temperature in New Jersey in September is 15°C (59°F). The minimum temperature is 19°C (66°F) in the previous month and 10°C (49°F) in the next month.

Sunshine in New Jersey in September

During September the average day light hours are 12.5 per day in New Jersey. The sunshine percentage is 66.8% making it sunny but overcast at times. The hours of sunshine per day are 8.3hrs making the days long and bright.

The ultraviolet index in New Jersey in September is typically 6.9 during September. An ultraviolet index reading of 6 to 7 indicates a high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 20 minutes. Protection against skin and eye damage is needed. Tanning will be safest before 10am and after 4pm. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in New Jersey in September

The average sea water temperature in New Jersey in September is 20.2°C (68.4°F) which is comfortable for swimming though some may prefer warmer water.

Rainfall in New Jersey in September

The average total rainfall in New Jersey in September is 10.6cm (4.2inches) and on average there are 9.1 rainy days in September making it a quite rainy time to visit the beach.

Humidity in New Jersey in September

The maximum dew point (an indicator of humidity) in New Jersey in September is 17°C (63°F) which is OK for most but slightly uncomfortable for some. The dew point is 20°C (68°F) in the previous month and 12°C (12°F) in the next month.

The average maximum relative humidity in New Jersey in September is typically 89.1%. The maximum relative humidity is 88.8% in the previous month and 87.9% in the next month.

The average relative humidity in New Jersey in September is typically 70.9%. The average relative humidity is 70.1% in the previous month and 70.1% in the next month.

Wind Speed in New Jersey in September

The average maximum wind speed in New Jersey in September is typically 22KM/H (14MPH). The average maximum wind speed is 22KM/H (14MPH) in the previous month and 25KM/H (15MPH) in the next month.

The average wind speed in New Jersey in September is typically 9KM/H (6MPH). The average wind speed is 8KM/H (5MPH) in the previous month and 11KM/H (7MPH) in the next month.

The average wind direction in New Jersey in September is from the West-Southwest.

Monthly Averages

Suggested Beaches in September

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Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.

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Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.