September weather forecast
Montauk Beach, NY

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Weather in September

The first month of the autumn, September, is also an agreeable month in Montauk Beach, New York, with an average temperature varying between 64.9°F (18.3°C) and 69.6°F (20.9°C).

Temperature

With the arrival of September, Montauk Beach's average high-temperature registers at a pleasant 69.6°F (20.9°C), indicating a subtle variation from the previous month. In Montauk Beach, a slight decrease from the daytime peak is noted during the month of September, with an average low-temperature of 64.9°F (18.3°C).

Humidity

The average relative humidity in September is 77%.

Rainfall

The month with the least rainfall is September, when the rain falls for 10.7 days and typically collects 1.77" (45mm) of precipitation.

Snowfall

May through November are months without snowfall in Montauk Beach.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of the month, sunrise is at 6:15 am and sunset at 7:20 pm. On the last day of September, in Montauk Beach, sunrise is at 6:44 am and sunset at 6:31 pm EDT.

Sunshine

In Montauk Beach, New York, the average sunshine in September is 8.9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 5 in September translates into these instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Montauk Beach in September?

The average high-temperature and low-temperature in Montauk Beach during September are 69.6°F (20.9°C) and 64.9°F (18.3°C) respectively.

What is the average humidity in September in Montauk Beach?

In September, the average relative humidity in Montauk Beach, New York, is 77%.

What is the driest month in Montauk Beach?

September is the month with the least rainfall in Montauk Beach. Rain falls for 10.7 days and accumulates 1.77" (45mm) of precipitation.

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

In Montauk Beach, New York, in September, during 10.7 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.

When it does not snow in Montauk Beach?

May through November are months without snowfall in Montauk Beach, New York.

What is the average length of the day in September in Montauk Beach?

In September, the average day length is 12h and 28min.

What time are sunrise and sunset in September in Montauk Beach?

On the first day of September in Montauk Beach, sunrise is at 6:15 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:31 pm EDT.

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

The average sunshine duration in September is 8.9h.

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

The average daily maximum UV index in September in Montauk Beach, New York, is 5. A UV Index reading 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
Montauk Beach, NY

Average temperature in September - Montauk Beach, NY
  • Average high temperature in September: 69.6°F

The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 64.9°F

The month with the highest average low temperature is August (70.9°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).

Average pressure in September
Montauk Beach, NY

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

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Montauk Beach, NY

Average wind speed in September - Montauk Beach, NY
  • Average wind speed in September: 12.9mph

The windiest month (with the highest average wind speed) is January (16.7mph).
The calmest month (with the lowest average wind speed) is July (11.1mph).

Average humidity in September
Montauk Beach, NY

Average humidity in September - Montauk Beach, NY
  • Average humidity in September: 77%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is November (73%).

Average rainfall in September
Montauk Beach, NY

Average rainfall in September - Montauk Beach, NY
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is December (4.02").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in September
Montauk Beach, NY

Average rainfall days in September - Montauk Beach, NY
  • Average rainfall days in September: 10.7 days

The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is January (9.9 days).

Average snowfall in September
Montauk Beach, NY

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

The month with the highest snowfall is March (2.24").
The months with the least snowfall are May, June, July, August, September, October and November (0").

Average snowfall days in September
Montauk Beach, NY

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

The month with the highest number of snowfall days is January (5.1 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
Montauk Beach, NY

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

Average sunshine days in September
Montauk Beach, NY

Average sunshine days in September - Montauk Beach, NY
  • Average sunshine days in September: 17.7 days

The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is February (12.4 days).

Average UV index in September
Montauk Beach, NY

Average UV index in September - Montauk 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
Montauk Beach, NY

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

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in September
Montauk Beach, NY

Average visibility in September - Montauk 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).

Montauk Beach, New York, USA

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