September weather forecast and climate
Montauk Beach, NY

September, the first month of the autumn, in Montauk Beach, is still a pleasant month, with average temperature ranging between max 69.6°F (20.9°C) and min 64.9°F (18.3°C).

Temperature

In Montauk Beach, New York, the average high-temperature in September is relatively the same as in August - an agreeable 69.6°F (20.9°C). The average low-temperature, in September, is 64.9°F (18.3°C).

Humidity

In Montauk Beach, New York, the average relative humidity 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 Montauk Beach, the average length of the day is 12.4h.

Sunshine

In September, the average sunshine 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 unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Montauk Beach?

In Montauk Beach, in September, the average high-temperature is 69.6°F (20.9°C), and the average low-temperature is 64.9°F (18.3°C).

What is the average humidity in September in Montauk Beach?

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

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

In September, the rain falls for 10.7 days. Throughout September, 1.77" (45mm) of precipitation is accumulated.

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.

When it does not snow in Montauk Beach?

In Montauk Beach snow does not fall in May through November.

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

In September, the average length of the day is 12.4h.

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

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

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

In September, the average daily maximum UV index in Montauk Beach, New York, is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to the Sun's UV rays.
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: 30.05"

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

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: 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: 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: 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: 0"

The month with the highest snowfall is March (2.24").
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: 0 days

The month with the highest number of snowfall days is January (5.1 days).
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: 12.4h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in September: 8.9h

The month with the most sunshine is August (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 4.7h).

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: 5

Months with the highest UV index are June, July and August (UV index 6).
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: 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: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).