Water Temperature of the Atlantic Ocean Near Islip, NY
Current Water Temperature
Measurement Time: Monday, May 18, 2026, 7:10 AM EDT
Temperature Locations
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Station Name: LONG ISLAND - 30 NM South of Islip, NY
Station Type: Other
Data Source: National Data Buoy Center
Elevation Above Sea Level: 0 feet
Nearest Address:
Offshore
Islip, NY 11751
Suffolk County
GPS Coordinates: 40.251, -73.164
Nearby Water Temperatures
Atlantic Ocean, Breezy Point, NY (29.5 mi)Reynolds Channel, Point Lookout, NY (32.4 mi)
Great South Bay, West Sayville, NY (32.7 mi)
Hog Island Channel, Island Park, NY (35.8 mi)
Hempstead Lake, Lakeview, NY (38.7 mi)
Rockaway Inlet, Brooklyn, NY (44 mi)
Sandy Hook Bay, Sandy Hook, NJ (46.9 mi)
Flax Pond, Old Field, NY (49.2 mi)
Long Island Sound, Kings Point, NY (49.9 mi)
Frost Creek, Lattingtown, NY (50.5 mi)
East Creek, Sands Point, NY (51.3 mi)
Atlantic Ocean, Surf City, NJ (51.7 mi)
Peconic River, Riverhead, NY (53.7 mi)
East River, New York, NY (54.4 mi)
Bronx River, Bronx, NY (56.3 mi)
Weather Near Islip, New York
Current Weather

Five Day Weather Forecast

Mon
H: 86°F
L: 60°F

Tue
H: 81°F
L: 63°F

Wed
H: 84°F
L: 65°F

Thu
H: 60°F
L: 55°F

Fri
H: 63°F
L: 54°F
Air Quality
Nitrogen Dioxide: 2.95 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 132 μg/m3
Astronomical
Sun Transit: 12:49 AM
Sunset: 8:05 PM
Daylight: 14 hrs 31 mins
Moon Transit: 2:46 PM
Moonset: 10:54 PM
Moon Phase: New
Moon Illumination: 2.6%
Best Times for Fishing or Hunting
Major Periods
4:03 AM - 6:33 AM2:16 PM - 4:46 PM
Minor Periods
10:24 PM - 11:54 PM6:09 AM - 7:39 AM
Action Rating: 3 out of 5
Air Quality Alert issued May 17 at 11:48PM EDT by NWS Upton NY
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Sun May 17, 2026, 11:48 PM
Expires: Mon May 18, 2026, 11:00 PM
The New York State Department of Environmental Conservation's Air Quality Health Advisory for the following counties: New York, Bronx, Kings, Queens, Richmond, Westchester and Rockland, remains in effect until 11 PM EDT this evening. Another air quality health advisory has been issued for these same areas on Monday between 11 AM and 11 PM EDT. Air quality levels in outdoor air are predicted to be greater than an Air Quality Index value of 100 for the pollutant of Ground Level Ozone. The Air Quality Index, or AQI, was created as an easy way to correlate levels of different pollutants to one scale. The higher the AQI value, the greater the health concern. When pollution levels are elevated, the New York State Department of Health recommends that individuals consider limiting strenuous outdoor physical activity to reduce the risk of adverse health effects. People who may be especially sensitive to the effects of elevated levels of pollutants include the very young, and those with preexisting respiratory problems such as asthma or heart disease. Those with symptoms should consider consulting their personal physician. For additional information, please visit the New York State Department of Environmental Conservation website at, https://on.ny.gov/nyaqi, or call the Air Quality Hotline at 1 800 5 3 5, 1 3 4 5.
Weather Forecast
Air Quality
Nitrogen Dioxide: 21.24 μg/m3
Sulphur Dioxide: 2.56 μg/m3
Ozone: 93.4 μg/m3
Astronomical
Sun Transit: 12:49 AM
Sunset: 8:05 PM
Daylight: 14 hrs 31 mins
Moon Transit: 2:46 PM
Moonset: 10:54 PM
Moon Phase: New
Moon Illumination: 2.6%
Best Times for Fishing or Hunting
Major Periods
4:03 AM - 6:33 AM2:16 PM - 4:46 PM
Minor Periods
10:24 PM - 11:54 PM6:09 AM - 7:39 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 10.33 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 104.04 μg/m3
Astronomical
Sun Transit: 12:49 AM
Sunset: 8:06 PM
Daylight: 14 hrs 33 mins
Moon Transit: 3:52 PM
Moonset: 11:51 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.4%
Best Times for Fishing or Hunting
Major Periods
5:10 AM - 7:40 AM3:22 PM - 5:52 PM
Minor Periods
12:00 AM - 12:00 AM7:18 AM - 8:48 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 13.73 μg/m3
Sulphur Dioxide: 2.11 μg/m3
Ozone: 97.6 μg/m3
Astronomical
Sun Transit: 12:49 AM
Sunset: 8:07 PM
Daylight: 14 hrs 34 mins
Moon Transit: 4:54 PM
Moonset: 12:51 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%
Best Times for Fishing or Hunting
Major Periods
6:15 AM - 8:45 AM4:24 PM - 6:54 PM
Minor Periods
8:33 AM - 10:03 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 10.49 μg/m3
Sulphur Dioxide: 1.63 μg/m3
Ozone: 65.08 μg/m3
Astronomical
Sun Transit: 12:49 AM
Sunset: 8:08 PM
Daylight: 14 hrs 36 mins
Moon Transit: 5:51 PM
Moonset: 12:35 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%
Best Times for Fishing or Hunting
Major Periods
7:13 AM - 9:43 AM5:21 PM - 7:51 PM
Minor Periods
9:51 AM - 11:21 AM12:05 AM - 1:35 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 10.85 μg/m3
Sulphur Dioxide: 1.73 μg/m3
Ozone: 56.92 μg/m3
Astronomical
Sun Transit: 12:49 AM
Sunset: 8:08 PM
Daylight: 14 hrs 38 mins
Moon Transit: 6:42 PM
Moonset: 1:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%
Best Times for Fishing or Hunting
Major Periods
8:06 AM - 10:36 AM6:12 PM - 8:42 PM
Minor Periods
11:04 AM - 12:34 AM12:39 AM - 2:09 AM
Action Rating: 2 out of 5
