Also consider one of our other suggestions for September.
The average maximum temperature in New Jersey in September is 25°. The average maximum temperature is 28° in the previous month and 19° in the next month.
The average temperature in New Jersey in September is 20°. The average temperature ranges is 24° in the previous month and 14° in the next month.
The average minimum temperature in New Jersey in September is 15°. The minimum temperature is 19° in the previous month and 10° in the next month.
The average day light hours per day in New Jersey in September are 12.5 and there are 8.3 hours of sunshine per day on average during September making it a sunny month with few clouds.
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.
The average sea water temperature in New Jersey in September is 20.2° which is comfortable for swimming though some may prefer warmer water.
The average total rainfall in New Jersey in September is 43.9cm and on average there are 9.1 rainy days in September making it a slightly wet time to visit the beach.
The maximum dew point (an indicator of humidity) in New Jersey in September is 17° which is OK for most but slightly uncomfortable for some. The dew point is 20° in the previous month and 12° 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.
The average maximum wind speed in New Jersey in September is typically 22kmh. The average maximum wind speed is 22kmh in the previous month and 25kmh in the next month.
The average wind speed in New Jersey in September is typically 9kmh. The average wind speed is 8kmh in the previous month and 11kmh in the next month.
The average wind direction in New Jersey in September is from the West-Southwest.
