September weather forecast
Monmouth Beach, NJ

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Weather in September

The first month of the autumn, September, is also an agreeable month in Monmouth Beach, New Jersey, with temperature in the range of an average high of 73.2°F (22.9°C) and an average low of 65.1°F (18.4°C).

Temperature

The beginning of September subtly marks a decrease in the average high-temperature, transitioning from a warm 79.3°F (26.3°C) in August to an agreeable 73.2°F (22.9°C). Monmouth Beach's nighttime temperatures in September display a slight drop from daytime highs, averaging to a comfortable 65.1°F (18.4°C).

Humidity

In September, the average relative humidity in Monmouth Beach is 76%.

Rainfall

In September, in Monmouth Beach, the rain falls for 11 days. Throughout September, 0.75" (19mm) of precipitation is accumulated. In Monmouth Beach, during the entire year, the rain falls for 122.1 days and collects up to 11.14" (283mm) of precipitation.

Snowfall

April through September and November are months without snowfall in Monmouth Beach.

Ocean temperature

In September, the average ocean temperature is 70.3°F (21.3°C).
Note: In water with a temperature of 70.3°F (21.3°C), swimming is not a joy for most people. The challenge of controlling breathing increases as the temperature dips from 69.8°F (21°C) to 59°F (15°C).

Daylight

The average length of the day in September in Monmouth Beach is 12h and 27min.
On the first day of the month, sunrise is at 6:24 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:39 pm EDT.

Sunshine

In September, the average sunshine in Monmouth Beach is 9.1h.

UV index

In Monmouth Beach, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 5 in September translates into this advice:
Act with care - The suggestion to avoid sunburn is emphasized. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Notice! The reflection of water and sand increases the UV radiation significantly.
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Frequently asked questions

What are September temperatures in Monmouth Beach?

In September, the average high-temperature and low-temperature in Monmouth Beach, New Jersey, are 73.2°F (22.9°C) and 65.1°F (18.4°C) respectively.

What is the average humidity in September in Monmouth Beach?

The average relative humidity in September in Monmouth Beach is 76%.

How many days does it rain in September in Monmouth Beach?

In September, in Monmouth Beach, New Jersey, the rain falls for 11 days. Throughout September, 0.75" (19mm) of precipitation is accumulated.

When it does not snow in Monmouth Beach?

In Monmouth Beach, New Jersey, snow does not fall in April through September and November.

Does it snow in Monmouth Beach in September?

In Monmouth Beach, New Jersey, in September, it doesn't snow. In October, it regularly snows.

What is the ocean temperature in September in Monmouth Beach?

In Monmouth Beach, New Jersey, the average seawater temperature in September is 70.3°F (21.3°C). For most, swimming in 70.3°F (21.3°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

How many hours of daylight does Monmouth Beach have in September?

In Monmouth Beach, New Jersey, the average day length in September is 12h and 27min.

When are sunrise and sunset in September in Monmouth Beach?

On the first day of September in Monmouth Beach, 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.

How long on average sun shines in September in Monmouth Beach?

The average sunshine duration in September in Monmouth Beach, New Jersey, is 9.1h.

How high is the UV index in September in Monmouth Beach?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Monmouth Beach, NJ

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).

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Average pressure in September
Monmouth Beach, NJ

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).

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Average wind speed in September
Monmouth Beach, NJ

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).

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Average humidity in September
Monmouth Beach, NJ

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%).

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Average rainfall in September
Monmouth Beach, NJ

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").

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Average rainfall days in September
Monmouth Beach, NJ

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).

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Average snowfall in September
Monmouth Beach, NJ

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").

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Average snowfall days in September
Monmouth Beach, NJ

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).

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Average sea temperature in September
Monmouth Beach, NJ

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).

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Average daylight in September /
Average sunshine in September
Monmouth Beach, NJ

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).

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Average sunshine days in September
Monmouth Beach, NJ

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).

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Average UV index in September
Monmouth Beach, NJ

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).

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Average cloud cover in September
Monmouth Beach, NJ

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).

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Average visibility in September
Monmouth Beach, NJ

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).

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Monmouth Beach, New Jersey, USA

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