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Satellite view of Duck Island Harbor

Duck Island Harbor

Bay

Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 74°F, within the comfortable 70–86°F range.

  • Water temperature is 74°F, within the comfortable 70–86°F range.
Good to swimGood conditions today

bay in Suffolk County, New York, United States of America

Interactive map not available

Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 74°F, within the comfortable 70–86°F range.

  • Water temperature is 74°F, within the comfortable 70–86°F range. NOAA buoy BRHC3, as of Aug 23, 7:48 AM UTC
Water temp
74°F
24°C

No official beach-advisory feed for New York yet — follow posted signs and local guidance.

Live data from NOAA buoy BRHC3 (19.6 mi away), as of Aug 23, 7:48 AM UTC.

Weather at Duck Island Harbor

H: 84° L: 67°
Mist
Mist
68°
|
Feels like 69°
Precipitation
75%
Humidity
96%
Wind
9 mph
UV Index
0
Water Conditions:
🏊Cool but swimmable
12 AM
Cloudy
67°
3 AM
Mist
68°
6 AM
Mist
68°
9 AM
Patchy rain nearby
72°
12 PM
Patchy light rain
76°
3 PM
Patchy light rain
78°
6 PM
Sunny
84°
9 PM
Clear
80°

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Frequently asked questions

Where is Duck Island Harbor?
Duck Island Harbor is a bay in New York.
What is the water temperature at Duck Island Harbor?
As of August 23, 2026, the water temperature at Duck Island Harbor in New York is 74°F (24°C), measured by NOAA buoy BRHC3, 19.6 miles away.
Can you swim at Duck Island Harbor?
Comfortable for a swim today: water temperature is 74°F, within the comfortable 70–86°F range. Checked August 23, 2026.

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Best Times to Visit

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Right Now
Good conditions for visiting
General Tips:
  • Weekday mornings (8–10 AM) are typically less crowded
  • Check the forecast 2–3 days ahead for best planning
  • Avoid holiday weekends for a quieter experience
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

New York

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