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Sea Temperature in Fire Island in September

Complete information on the sea temperature range in the Atlantic Ocean in Fire Island in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Fire Island. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Fire Island in September

18°C

MINIMUN

21.5°C

AVERAGE

25°C

MAXIMUM

Historical Data of Water Temperature in September in Fire Island

Water Temperature Chart for Atlantic Ocean in Fire Island in September

Sea Temperature Table in Fire Island in September Over the Past Years

Day202420232022Average
Sep 122°C23°C22°C22.3°C
Sep 222°C23°C22°C22.3°C
Sep 321°C23°C22°C22.0°C
Sep 421°C23°C22°C22.0°C
Sep 521°C23°C22°C21.8°C
Sep 622°C23°C22°C22.0°C
Sep 722°C24°C21°C22.0°C
Sep 822°C24°C21°C22.0°C
Sep 922°C23°C21°C21.8°C
Sep 1022°C23°C21°C21.8°C
Sep 1122°C23°C21°C21.5°C
Sep 1223°C23°C21°C22.0°C
Sep 1322°C22°C20°C21.0°C
Sep 1423°C23°C20°C21.8°C
Sep 1522°C22°C20°C21.3°C
Sep 1622°C22°C20°C21.3°C
Sep 1722°C22°C20°C21.3°C
Sep 1822°C21°C20°C21.0°C
Sep 1923°C21°C19°C21.0°C
Sep 2022°C21°C19°C20.5°C
Sep 2123°C20°C19°C20.8°C
Sep 2222°C19°C19°C20.3°C
Sep 2322°C19°C19°C20.3°C
Sep 2423°C19°C19°C20.3°C
Sep 2523°C19°C18°C20.0°C
Sep 2623°C20°C18°C20.0°C
Sep 2722°C20°C18°C19.8°C
Sep 2823°C20°C18°C20.0°C
Sep 2922°C20°C18°C19.8°C
New York, United StatesNew York, United StatesNew York, United States

Fire Island Climate and Swimming Opportunities in September

24°C

Average Day Air Temperature

14°C

Average Night Air Temperature

98 mm

Precipitation Amount per Month

9 days

Number of Rainy Days

12 hrs

Daylight
per Day

7 hrs

Sunshine
per Day

14 km/h

Average Wind Speed

75%

Average
humidity

Fire Island lies within the New York in United States. The average daytime temperature in Fire Island in September is 75°F (24°C), while the nighttime average is 57°F (14°C). There are typically nine rainy days during the month, with a total precipitation of 3.8 inches (98 mm). The daylight duration in September in Fire Island is 12 hours, with an average of 7 hours of sunshine per day. The average wind speed in September is 9 mph (14 km/h), and the humidity level is around 75%.

The water temperature in Fire Island in September ranges from 66°F to 72°F (19°C to 22°C). At the beginning of the month, the average temperature is around 72°F (22°C), shifting to 70°F (21°C) by mid-September and reaching 68°F (20°C) in the last ten days. Overall, the average sea temperature in Fire Island for September is 70°F (21°C). Optimal swimming conditions. The water is warm, and the air is comfortable for drying off and sunbathing.

Frequently Asked Questions About Water Temperatures in September in Fire Island

What is the sea temperature in Fire Island in September?

The water temperature in the Atlantic Ocean in Fire Island in September ranges from 66°F to 72°F (19°C to 22°C).

Is it possible to swim in the Atlantic Ocean in Fire Island in September?

The average sea temperature in Fire Island in September is 70°F (21°C), and the air temperature is 75°F (24°C), so optimal swimming conditions. The water is warm, and the air is comfortable for drying off and sunbathing.