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
With the onset of September, Monmouth Beach experiences a modest temperature adjustment, with the average high-temperature gently receding from a moderately hot 79.3°F (26.3°C) in August to an agreeable 73.2°F (22.9°C). In Monmouth Beach, September is characterized by an average low-temperature of 65.1°F (18.4°C), indicating a minor drop from daytime highs.Humidity
In Monmouth Beach, the average relative humidity in September is 76%.Rainfall
In Monmouth Beach, in September, it is raining for 11 days, with typically 0.75" (19mm) of accumulated precipitation. Throughout the year, there are 122.1 rainfall days, and 11.14" (283mm) of precipitation is accumulated.Snowfall
April through September and November are months without snowfall.Ocean temperature
In Monmouth Beach, New Jersey, in September, the average water temperature is 70.3°F (21.3°C).Note: When the surface water temperature is 70.3°F (21.3°C), most do not enjoy swimming. Breathing control becomes more complex as temperatures drop below 69.8°F (21°C).
Daylight
The average length of the day in September is 12h and 27min.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 6:39 pm EDT.
Sunshine
The average sunshine in September is 9.1h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 5 during September leads to these instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Minimize direct exposure to the Sun during midday when its radiation is at its peak. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the ocean temperature in September?
How many hours of daylight does Monmouth Beach have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Monmouth Beach have in September?
What is the UV index intensity in September?
Average temperature in September
Monmouth Beach, NJ
- Average high temperature in September: 73.2°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in September: 65.1°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in September
Monmouth Beach, 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
Monmouth Beach, NJ
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Monmouth Beach, NJ
- Average humidity in September: 76%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is November (73%).
Average rainfall in September
Monmouth Beach, NJ
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is July (1.38").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in September
Monmouth Beach, NJ
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is November (6.8 days).
Average snowfall in September
Monmouth Beach, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.47").
The months with the least snowfall are April, May, June, July, August, September and November (0").
Average snowfall days in September
Monmouth Beach, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in September
Monmouth Beach, NJ
- Average sea temperature in September: 70.3°F
The best month for swimming (with the highest average sea temperature) is August (74.5°F).
The coldest month (with the lowest average sea temperature) is February (40.1°F).
Average daylight in September /
Average sunshine in September
Monmouth Beach, NJ
- Average daylight in September: 12h and 2min
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 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 48min).
Average sunshine days in September
Monmouth Beach, NJ
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (14.3 days).
Average UV index in September
Monmouth Beach, 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, March, November and December (UV index 2).
Average cloud cover in September
Monmouth Beach, NJ
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Monmouth Beach, 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).
Monmouth Beach, New Jersey, USA
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