September weather forecast and climate
Montauk, NY

The shores of The Atlantic Ocean with a far view of the Montauk Point Lighthouse, in Montauk, New York
The shores of The Atlantic Ocean with a far view of the Montauk Point Lighthouse, in Montauk, New York

What is the temperature in September in Montauk?

In Montauk, New York, in September, the average high-temperature is 72°F (22.2°C), and the average low-temperature is 59.4°F (15.2°C).

How much does it rain in Montauk in September?

Throughout September, 3.9" (99.8mm) of precipitation is accumulated.

What is the sea temperature in September in Montauk?

In Montauk, in September, the average water temperature is 67.6°F (19.8°C). For most, swimming in 67.6°F (19.8°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).
Average temperature in September - Montauk, NY
  • Average high temperature in September: 71.9°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in September: 59.4°F

Months with the highest average low temperature are July and August (65.5°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

Average rainfall in September - Montauk, NY
  • Average rainfall in September: 3.9"

The wettest month (with the highest rainfall) is March (4.8").
The driest month (with the lowest rainfall) is May (2.2").

Average sea temperature in September - Montauk, NY
  • Average sea temperature in September: 67.6°F

The best month for swimming (with the highest average sea temperature) is August (70.3°F).
The coldest month (with the lowest average sea temperature) is February (37.9°F).

Average daylight in September - Montauk, NY
  • Average daylight in September: 12.5h

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

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