September weather forecast
Long Beach, NY

englishespañol中文
Share

Weather in September

September brings a welcome change in weather in Long Beach, signalling the onset of the fall season. Temperatures begin to decline as summer starts to fade, leading to cooler evenings and dawn. What stands out in September is the noticeable drop in maximum sea temperatures to 70.1°F (21.2°C), marking the gradual retreat of summer. The decreased heat and sizable daylight hours create ideal conditions for outdoor activities like cycling or hiking. Overall, residents witness a harmonious balance between the ending summer and incoming fall this month.

Temperature

September sees a slight reduction in average high-temperature, with a shift from a moderately hot 78.4°F (25.8°C) in August to an agreeable 72.3°F (22.4°C). In Long Beach, a slight decrease from the daytime peak is noted during the month of September, with an average low-temperature of 65.3°F (18.5°C).

Humidity

The average relative humidity in September is 75%.

Rainfall

In September, the rain falls for 13.8 days. Throughout September, 2.68" (68mm) of precipitation is accumulated. In Long Beach, during the entire year, the rain falls for 159.2 days and collects up to 37.17" (944mm) of precipitation.

Snowfall

In Long Beach, snow does not fall in May through September.

Ocean temperature

In September, the average ocean temperature is 70.2°F (21.2°C).
Note: In water with a temperature of 70.2°F (21.2°C), most people do not enjoy swimming. As the temperature descends from 69.8°F (21°C) to 59°F (15°C), breathing becomes increasingly difficult to control.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of September, sunrise is at 6:22 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:37 pm EDT.

Sunshine

In September, the average sunshine is 9h.

UV index

In September, the average daily maximum UV index in Long Beach is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Stay vigilant! UV rays get a boost in intensity due to sand and water reflections.

Frequently asked questions

What are September temperatures?

In September, in Long Beach, the average high-temperature is 72.3°F (22.4°C), and the average low-temperature is 65.3°F (18.5°C).

What is the average humidity in September?

The average relative humidity in September is 75%.

How much does it rain in September?

In Long Beach, during September, the rain falls for 13.8 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When it does not snow?

May through September are months without snowfall in Long Beach.

Does it snow in September?

In Long Beach, New York, in September, it doesn't snow. In October, it regularly snows.

What is the ocean temperature in September?

In September, the average ocean temperature is 70.2°F (21.2°C). For most, swimming in 70.2°F (21.2°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).

What is the average length of the day in September?

The average day length in September is 12h and 27min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:22 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:37 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9h.

What is the UV index reading in September in Long Beach?

In Long Beach, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Long Beach, NY

Average temperature in September - Long Beach, NY
  • Average high temperature in September: 72.3°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in September: 65.3°F

The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

Average pressure in September
Long Beach, NY

Average pressure in September - Long Beach, NY
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Long Beach, NY

Average wind speed in September - Long Beach, NY
  • Average wind speed in September: 10.2mph

The windiest month (with the highest average wind speed) is January (13.6mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).

Average humidity in September
Long Beach, NY

Average humidity in September - Long Beach, NY
  • Average humidity in September: 75%

The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).

Average rainfall in September
Long Beach, NY

Average rainfall in September - Long Beach, NY
  • Average rainfall in September: 2.68"

The wettest month (with the highest rainfall) is July (4.17").
The driest month (with the least rainfall) is January (2.17").

Average rainfall days in September
Long Beach, NY

Average rainfall days in September - Long Beach, NY
  • Average rainfall days in September: 13.8 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in September
Long Beach, NY

Average snowfall in September - Long Beach, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is March (1.5").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Long Beach, NY

Average snowfall days in September - Long Beach, NY
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average sea temperature in September
Long Beach, NY

Average sea temperature in September - Long Beach, NY
  • Average sea temperature in September: 70.1°F

The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).

Average daylight in September /
Average sunshine in September
Long Beach, NY

Average daylight in September / Average sunshine in September - Long Beach, NY
  • Average daylight in September: 12h and 3min

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 18min).

  • 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 48min).

Average sunshine days in September
Long Beach, NY

Average sunshine days in September - Long Beach, NY
  • Average sunshine days in September: 15 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (10.7 days).

Average UV index in September
Long Beach, NY

Average UV index in September - Long Beach, NY
  • 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 and December (UV index 2).

Average cloud cover in September
Long Beach, NY

Average cloud cover in September - Long Beach, NY
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in September
Long Beach, NY

Average visibility in September - Long Beach, NY
  • 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).

Long Beach, New York, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location