Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's moderately hot 83.1°F (28.4°C) to a still warm 76.5°F (24.7°C). Throughout the month of September, the nighttime temperature dips to an average of 60.8°F (16°C).Humidity
The months with the highest humidity are May, September, October and December, with an average relative humidity of 77%.Rainfall
In Swedesboro, New Jersey, in September, during 9.6 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Swedesboro, during the entire year, the rain falls for 121 days and collects up to 11.54" (293mm) of precipitation.Snowfall
In Swedesboro, snow does not fall in May through October.Daylight
In September, the average length of the day in Swedesboro is 12h and 26min.On the first day of September in Swedesboro, sunrise is at 6:29 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:44 pm EDT.
Sunshine
In Swedesboro, New Jersey, the average sunshine in September is 9.1h.UV index
The average daily maximum UV index in September in Swedesboro is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 5 suggests this advice:
Undertake precautions - Guarding against sun damage is counselled. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Swedesboro?
What is the most humid month in Swedesboro?
What is the average humidity in September in Swedesboro?
How much does it rain in Swedesboro in September?
When it does not snow in Swedesboro?
What is the average length of the day in September in Swedesboro?
What time are sunrise and sunset in September in Swedesboro?
How many hours of sunshine does Swedesboro have in September?
What is the UV index reading in September in Swedesboro?
Average temperature in September
Swedesboro, NJ
- Average high temperature in September: 76.5°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in September: 60.8°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in September
Swedesboro, NJ
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Swedesboro, NJ
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Swedesboro, NJ
- Average humidity in September: 77%
The months with the highest relative humidity are May, September, October and December (77%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Swedesboro, NJ
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is August (1.42").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in September
Swedesboro, NJ
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is July (14.2 days).
The month with the least rainy days is November (6.6 days).
Average snowfall in September
Swedesboro, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Swedesboro, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Swedesboro, NJ
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Swedesboro, NJ
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is July (13.5 days).
Average UV index in September
Swedesboro, NJ
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Swedesboro, NJ
- Average cloud cover in September: 35
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Swedesboro, NJ
- Average visibility in September: 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).
Swedesboro, New Jersey, USA
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