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 sea temperature 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
Upon the beginning of September, Cape May's high-temperatures register at a still moderately hot 73.4°F (23°C), closely mirroring the preceding month. In Cape May, nights during September observe an average temperature decrease to a refreshing 67.8°F (19.9°C).Humidity
In September, the average relative humidity in Cape May, New Jersey, is 77%.Rainfall
In Cape May, in September, during 12.7 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Cape May, New Jersey, during the entire year, the rain falls for 158 days and collects up to 35.47" (901mm) of precipitation.Snowfall
In Cape May, snow does not fall in April through November.Ocean temperature
In Cape May, the average seawater temperature in September is 71.6°F (22°C).Note: When considering a person's aversion to cold, factors like sunshine, wind, and atmospheric temperature are key. Swimming in 71.6°F (22°C) might be delightful. (Remember: The Olympics' swimming events have water temperatures between 77°F (25°C) and 82.4°F (28°C).)
Daylight
In September, the average length of the day is 12h and 26min.On the first day of September in Cape May, New Jersey, sunrise is at 6:29 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:43 pm EDT.
Sunshine
The average sunshine in September is 9.4h.UV index
In Cape May, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Caution! The Sun's UV intensity grows with reflections off sand and water.
Frequently asked questions
What is the usual temperature for Cape May in September?
What is the average humidity in September in Cape May?
How much does it rain in Cape May in September?
When it does not snow in Cape May?
What is the water temperature in September in Cape May?
How many hours of daylight does Cape May have in September?
When is the sunrise / sunset in September in Cape May?
How many hours of sunshine does Cape May have in September?
What is the UV index intensity in September in Cape May?
Average temperature in September
Cape May, NJ
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in September: 67.8°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in September
Cape May, NJ
- Average pressure in September: 30.04"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
Cape May, NJ
- Average wind speed in September: 10.9mph
The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is July (9.2mph).
Average humidity in September
Cape May, NJ
- Average humidity in September: 77%
The month with the highest relative humidity is May (82%).
The month with the lowest relative humidity is November (73%).
Average rainfall in September
Cape May, NJ
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in September
Cape May, NJ
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in September
Cape May, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.06").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Cape May, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in September
Cape May, NJ
- Average sea temperature in September: 72°F
The best month for swimming (with the highest average sea temperature) is August (75°F).
The coldest months (with the lowest average sea temperature) are February and March (43°F).
Average daylight in September /
Average sunshine in September
Cape May, 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 30min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Cape May, NJ
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is November (18.9 days).
The months with the least sunshine days are May and June (12.5 days).
Average UV index in September
Cape May, 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 and December (UV index 2).
Average cloud cover in September
Cape May, NJ
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Cape May, 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).
Cape May, New Jersey, USA
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