September weather forecast
Riviera Beach, NJ

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Weather in September

The first month of the autumn, September, is still a pleasant month in Riviera Beach, New Jersey, with temperature in the range of an average low of 65.1°F (18.4°C) and an average high of 72.5°F (22.5°C).

Temperature

The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a moderately hot 78.6°F (25.9°C) in August to an agreeable 72.5°F (22.5°C). In September, Riviera Beach's nighttime temperatures demonstrate a slight decrease, stabilizing at an average of 65.1°F (18.4°C).

Humidity

In Riviera Beach, the average relative humidity in September is 77%.

Rainfall

In Riviera Beach, in September, it is raining for 13 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, in Riviera Beach, there are 158.1 rainfall days, and 34.13" (867mm) of precipitation is accumulated.

Snowfall

In Riviera Beach, snow does not fall in May through October.

Daylight

The average length of the day in September 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 6:39 pm EDT.

Sunshine

The average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index, 5 during September, leads to the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

What is the average September temperature?

Riviera Beach in September has an average high-temperature of 72.5°F (22.5°C) and an average low-temperature of 65.1°F (18.4°C).

What is the average humidity in September?

In Riviera Beach, the average relative humidity in September is 77%.

How many days does it rain in September?

In Riviera Beach, in September, it is raining for 13 days, with typically 2.17" (55mm) of accumulated precipitation.

When it does not snow?

In Riviera Beach, snow does not fall in May through October.

What is the average length of the day in September?

The average day length in September is 12h and 26min.

When is the sunrise / sunset in September?

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.

How many hours of sunshine does Riviera Beach have in September?

In Riviera Beach, the average sunshine duration in September is 9h.

What is the UV index intensity in September?

In Riviera Beach, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
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
Riviera Beach, NJ

Average temperature in September - Riviera Beach, NJ
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 65.1°F

The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

Average pressure in September
Riviera Beach, NJ

Average pressure in September - Riviera 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
Riviera Beach, NJ

Average wind speed in September - Riviera Beach, NJ
  • Average wind speed in September: 9.8mph

The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

Average humidity in September
Riviera Beach, NJ

Average humidity in September - Riviera Beach, 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 and November (74%).

Average rainfall in September
Riviera Beach, NJ

Average rainfall in September - Riviera Beach, NJ
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is July (3.78").
The driest month (with the least rainfall) is January (2.05").

Average rainfall days in September
Riviera Beach, NJ

Average rainfall days in September - Riviera Beach, NJ
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in September
Riviera Beach, NJ

Average snowfall in September - Riviera Beach, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is January (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Riviera Beach, NJ

Average snowfall days in September - Riviera Beach, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (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 Beach, NJ

Average daylight in September / Average sunshine in September - Riviera 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 0min

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
Riviera Beach, NJ

Average sunshine days in September - Riviera Beach, NJ
  • Average sunshine days in September: 15.4 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (12.8 days).

Average UV index in September
Riviera Beach, NJ

Average UV index in September - Riviera 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, November and December (UV index 2).

Average cloud cover in September
Riviera Beach, NJ

Average cloud cover in September - Riviera Beach, NJ
  • Average cloud cover in September: 33

The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in September
Riviera Beach, NJ

Average visibility in September - Riviera 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).

Riviera Beach, New Jersey, USA

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