September weather forecastRiviera on the Bay, NJ
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Riviera on the Bay, New Jersey, with an average temperature ranging between min 64.6°F (18.1°C) and max 73.6°F (23.1°C).Temperature
With the onset of September, Riviera on the Bay's climate undergoes a slight change as the average high-temperature moves from a warm 79.7°F (26.5°C) in August to a still moderately hot 73.6°F (23.1°C). Riviera on the Bay's nocturnal readings in September exhibit minimal variation from the daytime temperatures, averaging at a refreshing 64.6°F (18.1°C).Humidity
The average relative humidity in September is 77%.Rainfall
In September, the rain falls for 12.3 days. Throughout September, 1.46" (37mm) of precipitation is accumulated. In Riviera on the Bay, New Jersey, during the entire year, the rain falls for 137.7 days and collects up to 19.09" (485mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 6:24 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:40 pm EDT.
Sunshine
In Riviera on the Bay, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 5 in September transforms into the following instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Riviera on the Bay, NJ
- Average high temperature in September: 73.6°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in September: 64.6°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in September
Riviera on the Bay, NJ
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Riviera on the Bay, NJ
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is January (12.2mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Riviera on the Bay, NJ
- Average humidity in September: 77%
The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January, March and November (74%).
Average rainfall in September
Riviera on the Bay, NJ
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in September
Riviera on the Bay, NJ
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is January (7 days).
Average snowfall in September
Riviera on the Bay, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.91").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Riviera on the Bay, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.4 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
Riviera on the Bay, NJ
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Riviera on the Bay, NJ
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in September
Riviera on the Bay, NJ
- Average UV index in September: 5
The months with the highest UV index are 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
Riviera on the Bay, NJ
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Riviera on the Bay, 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).
