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Sea Temperature in Stony Brook in September

Complete information on the sea temperature range in the Atlantic Ocean in Stony Brook in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Stony Brook. 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 Stony Brook in September

18°C

MINIMUN

21.5°C

AVERAGE

25°C

MAXIMUM

Historical Data of Water Temperature in September in Stony Brook

Water Temperature Chart for Atlantic Ocean in Stony Brook in September

Sea Temperature Table in Stony Brook in September Over the Past Years

Day202420232022Average
Sep 124°C23°C21°C22.5°C
Sep 224°C22°C21°C22.3°C
Sep 323°C23°C21°C22.3°C
Sep 423°C23°C20°C22.3°C
Sep 522°C23°C20°C21.8°C
Sep 624°C23°C20°C22.3°C
Sep 723°C23°C21°C22.0°C
Sep 823°C23°C20°C21.8°C
Sep 923°C23°C20°C21.8°C
Sep 1024°C23°C20°C22.3°C
Sep 1123°C22°C20°C21.3°C
Sep 1223°C23°C20°C21.8°C
Sep 1324°C22°C20°C21.5°C
Sep 1423°C22°C20°C21.5°C
Sep 1523°C22°C21°C22.0°C
Sep 1623°C22°C21°C22.0°C
Sep 1723°C21°C21°C21.3°C
Sep 1823°C22°C22°C22.0°C
Sep 1924°C21°C22°C22.0°C
Sep 2024°C20°C21°C21.5°C
Sep 2123°C20°C21°C21.3°C
Sep 2224°C20°C20°C21.3°C
Sep 2323°C19°C20°C20.8°C
Sep 2424°C20°C20°C21.3°C
Sep 2524°C20°C21°C21.5°C
Sep 2622°C20°C21°C20.5°C
Sep 2723°C19°C21°C20.5°C
Sep 2824°C20°C21°C21.3°C
Sep 2923°C20°C21°C20.5°C
New York, United StatesNew York, United StatesNew York, United States

Stony Brook 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

Stony Brook lies within the New York in United States. The average daytime temperature in Stony Brook 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 Stony Brook 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 Stony Brook in September ranges from 68°F to 73°F (20°C to 23°C). At the beginning of the month, the average temperature is around 72°F (22°C), shifting to 72°F (22°C) by mid-September and reaching 70°F (21°C) in the last ten days. Overall, the average sea temperature in Stony Brook for September is 72°F (22°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 Stony Brook

What is the sea temperature in Stony Brook in September?

The water temperature in the Atlantic Ocean in Stony Brook in September ranges from 68°F to 73°F (20°C to 23°C).

Is it possible to swim in the Atlantic Ocean in Stony Brook in September?

The average sea temperature in Stony Brook in September is 72°F (22°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.