Water Temperature of the Atlantic Ocean Near Islip, NY
Current Water Temperature
Measurement Time: Tuesday, July 29, 2025, 7:20 PM 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 / 0 meters
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 (44.0 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

Humidity: 90%
Feels Like: 63°F
Wind: NE 15.4 mph
Wind Gusts: 21.2 mph
Precipitation: 0.09 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0.1
Five Day Weather Forecast

Fri
H: 73°F
L: 64°F

Sat
H: 81°F
L: 62°F

Sun
H: 85°F
L: 68°F

Mon
H: 84°F
L: 68°F

Tue
H: 83°F
L: 73°F
Air Quality
Nitrogen Dioxide: 7.03 μg/m3
Sulphur Dioxide: 2.41 μg/m3
Ozone: 99 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 8:07 PM
Daylight: 14 hrs 16 mins
Moon Transit: 6:52 PM
Moonset: 12:18 AM
Moon Phase: First Quarter
Moon Illumination: 47.9%
Best Times for Fishing or Hunting
Major Periods
8:19 AM - 10:49 AM6:22 PM - 8:52 PM
Minor Periods
1:23 PM - 2:53 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Flood Watch issued July 31 at 2:14PM EDT until August 1 at 8:00AM EDT by NWS Upton NY
Effective: Thu July 31, 2025, 2:14 PM
Expires: Fri August 1, 2025, 8:00 AM
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southern Connecticut, including the following areas, Northern Fairfield and Southern Fairfield, northeast New Jersey, including the following areas, Eastern Bergen, Eastern Essex, Eastern Passaic, Eastern Union, Hudson, Western Bergen, Western Essex, Western Passaic and Western Union, and southeast New York, including the following areas, Bronx, Kings (Brooklyn), New York (Manhattan), Northern Nassau, Northern Queens, Northern Westchester, Orange, Putnam, Richmond (Staten Island), Rockland, Southern Nassau, Southern Queens and Southern Westchester. * WHEN...Through Friday morning. * IMPACTS...Scattered to numerous instances of urban, poor drainage and riverine flash flooding are possible. Localized severe flooding may cause an elevated threat to life and property, particularly Thursday afternoon and Thursday night. * ADDITIONAL DETAILS... - A widespread 1.5 to 3 inches of rain is likely, with localized amounts up to 5 inches. Rainfall rates could exceed 2+ inches per hour, especially for areas south. - http://www.weather.gov/safety/flood
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Rip Current Statement issued July 31 at 5:53PM EDT until August 1 at 9:00PM EDT by NWS Upton NY
Effective: Thu July 31, 2025, 5:53 PM
Expires: Fri August 1, 2025, 9:00 PM
* WHAT...Dangerous rip currents expected. * WHERE...Southeast Suffolk County. * WHEN...From Friday morning through Friday evening. * IMPACTS...Life-threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water.
If you enter the surf zone, always have a flotation device with you and swim near a lifeguard. If caught in a rip current, relax and float, and do not swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and yell or wave for help.
Flood Watch issued July 31 at 2:14PM EDT until August 1 at 8:00AM EDT by NWS Upton NY
Effective: Thu July 31, 2025, 2:14 PM
Expires: Fri August 1, 2025, 8:00 AM
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southern Connecticut, including the following areas, Northern Middlesex, Northern New Haven, Northern New London, Southern Middlesex, Southern New Haven and Southern New London and southeast New York, including the following areas, Northeast Suffolk, Northwest Suffolk, Southeast Suffolk and Southwest Suffolk. * WHEN...Through Friday morning. * IMPACTS...Scattered to numerous instances of urban, poor drainage and riverine flash flooding are possible. Localized severe flooding may cause an elevated threat to life and property, particularly Thursday afternoon and Thursday night. * ADDITIONAL DETAILS... - A widespread 1.5 to 3 inches of rain is likely, with localized amounts up to 5 inches. Rainfall rates could exceed 2+ inches per hour, especially for areas south. - http://www.weather.gov/safety/flood
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Rip Current Statement issued July 31 at 5:53PM EDT until August 1 at 9:00PM EDT by NWS Upton NY
Effective: Thu July 31, 2025, 5:53 PM
Expires: Fri August 1, 2025, 9:00 PM
* WHAT...Dangerous rip currents expected. * WHERE...Southeast Suffolk County. * WHEN...From Friday morning through Friday evening. * IMPACTS...Life-threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water.
If you enter the surf zone, always have a flotation device with you and swim near a lifeguard. If caught in a rip current, relax and float, and do not swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and yell or wave for help.
Weather Forecast
Average Temperature: 67.9°F
Average Humidity: 86%
Wind: 15.9 mph
UV Index: 0.7
Air Quality
Nitrogen Dioxide: 8.84 μg/m3
Sulphur Dioxide: 2.16 μg/m3
Ozone: 93.68 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 8:07 PM
Daylight: 14 hrs 16 mins
Moon Transit: 6:52 PM
Moonset: 12:18 AM
Moon Phase: First Quarter
Moon Illumination: 47.9%
Best Times for Fishing or Hunting
Major Periods
8:19 AM - 10:49 AM6:22 PM - 8:52 PM
Minor Periods
1:23 PM - 2:53 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 71.2°F
Average Humidity: 62%
Wind: 9.6 mph
UV Index: 2.2
Air Quality
Nitrogen Dioxide: 12.7 μg/m3
Sulphur Dioxide: 3.54 μg/m3
Ozone: 93.2 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 8:06 PM
Daylight: 14 hrs 14 mins
Moon Transit: 7:38 PM
Moonset: 12:44 AM
Moon Phase: First Quarter
Moon Illumination: 59.1%
Best Times for Fishing or Hunting
Major Periods
9:04 AM - 11:34 AM7:08 PM - 9:38 PM
Minor Periods
2:27 PM - 3:57 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 75.1°F
Average Humidity: 67%
Wind: 9.6 mph
UV Index: 2
Air Quality
Nitrogen Dioxide: 34.93 μg/m3
Sulphur Dioxide: 7.04 μg/m3
Ozone: 100.28 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 8:04 PM
Daylight: 14 hrs 12 mins
Moon Transit: 8:28 PM
Moonset: 12:15 AM
Moon Phase: First Quarter
Moon Illumination: 70.0%
Best Times for Fishing or Hunting
Major Periods
9:52 AM - 12:22 AM7:58 PM - 10:28 PM
Minor Periods
3:30 PM - 5:00 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 75.6°F
Average Humidity: 55%
Wind: 9.8 mph
UV Index: 1.8
Air Quality
Nitrogen Dioxide: 22.05 μg/m3
Sulphur Dioxide: 8.89 μg/m3
Ozone: 127.36 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 8:03 PM
Daylight: 14 hrs 10 mins
Moon Transit: 9:20 PM
Moonset: 12:53 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 79.8%
Best Times for Fishing or Hunting
Major Periods
10:43 AM - 1:13 PM8:50 PM - 11:20 PM
Minor Periods
4:30 PM - 6:00 PM12:23 AM - 1:53 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 77.5°F
Average Humidity: 54%
Wind: 9.6 mph
UV Index: 0.1
Air Quality
Nitrogen Dioxide: 21.26 μg/m3
Sulphur Dioxide: 6.4 μg/m3
Ozone: 110.77 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 8:02 PM
Daylight: 14 hrs 8 mins
Moon Transit: 10:14 PM
Moonset: 1:39 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%
Best Times for Fishing or Hunting
Major Periods
11:37 AM - 2:07 PM12:00 AM - 12:00 AM
Minor Periods
5:25 PM - 6:55 PM1:09 AM - 2:39 AM
Action Rating: 2 out of 5