Water Temperature of the Atlantic Ocean Near Islip, NY

Current Water Temperature

43.5°F

Measurement Time: Tuesday, April 7, 2026, 11:40 AM EDT

Temperature Locations

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Atlantic Ocean

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

39°F
Clear
Clear
29.8°F
38.4°F
34%
NNW 17.4 mph
21.3 mph
31.1°F
16.7°F
0 in
0%
9 mi
1030 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 56°F
L: 34°F
Sunny
Wed
H: 49°F
L: 25°F
Partly Cloudy
Thu
H: 48°F
L: 32°F
Mist
Fri
H: 54°F
L: 36°F
Sunny
Sat
H: 59°F
L: 47°F

Air Quality

AQI: 1 - Good
PM2.5: 3.65 μg/m3
PM10: 4.05 μg/m3
Carbon Monoxide: 168.85 μg/m3
Nitrogen Dioxide: 6.05 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 84 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 12:54 AM
Sunset: 7:23 PM
Daylight: 12 hrs 56 mins
Moonrise: 12:27 AM
Moon Transit: 4:49 AM
Moonset: 9:10 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
7:04 PM - 9:34 PM

Minor Periods

8:40 AM - 10:10 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Freeze Watch issued April 7 at 2:12AM EDT until April 8 at 10:00AM EDT by NWS Upton NY

Effective: Tue April 7, 2026, 2:12 AM
Expires: Wed April 8, 2026, 2:30 AM

* WHAT...Sub-freezing temperatures as low as 31 possible. * WHERE...In New Jersey, Eastern Essex, Eastern Union, and Hudson Counties. In New York, Bronx, Northern Nassau, Richmond (Staten Island), and Southern Nassau Counties. * WHEN...From late tonight through Wednesday morning. * IMPACTS...Frost and freeze conditions could kill sensitive vegetation.

Take steps now to protect tender plants from the cold.


Freeze Warning issued April 7 at 2:34PM EDT until April 8 at 8:00AM EDT by NWS Upton NY

Effective: Tue April 7, 2026, 2:34 PM
Expires: Wed April 8, 2026, 8:00 AM

* WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...In New Jersey, Eastern Essex, Eastern Union, and Hudson Counties. In New York, Bronx, Northern Nassau, Richmond (Staten Island), and Southern Nassau Counties. * WHEN...From midnight tonight to 8 AM EDT Wednesday. * IMPACTS...Freeze conditions could kill crops and other sensitive vegetation.

Take steps now to protect tender plants from the cold.


Freeze Warning issued April 7 at 2:34PM EDT until April 8 at 8:00AM EDT by NWS Upton NY

Effective: Tue April 7, 2026, 2:34 PM
Expires: Wed April 8, 2026, 8:00 AM

* WHAT...Sub-freezing temperatures as low as 32 expected. * WHERE...Kings (Brooklyn), New York (Manhattan), Northern Queens, and Southern Queens Counties. * WHEN...From midnight tonight to 8 AM EDT Wednesday. * IMPACTS...Freeze conditions could kill crops and other sensitive vegetation.

Take steps now to protect tender plants from the cold.
Tuesday, April 7, 2026

Weather Forecast

Sunny
55.9°F
34.2°F
45.5°F
57%
0 in
0%
0%
19.7 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 10.24 μg/m3
PM10: 11.29 μg/m3
Carbon Monoxide: 222.13 μg/m3
Nitrogen Dioxide: 25.55 μg/m3
Sulphur Dioxide: 3.79 μg/m3
Ozone: 63.72 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 12:54 AM
Sunset: 7:23 PM
Daylight: 12 hrs 56 mins
Moonrise: 12:27 AM
Moon Transit: 4:49 AM
Moonset: 9:10 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
7:04 PM - 9:34 PM

Minor Periods

8:40 AM - 10:10 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Wednesday, April 8, 2026

Weather Forecast

Sunny
48.7°F
25°F
36.8°F
53%
0 in
0%
0%
14.3 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 4.27 μg/m3
PM10: 5.07 μg/m3
Carbon Monoxide: 175.25 μg/m3
Nitrogen Dioxide: 6.01 μg/m3
Sulphur Dioxide: 2.24 μg/m3
Ozone: 89.24 μg/m3

Astronomical

Sunrise: 6:25 AM
Sun Transit: 12:54 AM
Sunset: 7:24 PM
Daylight: 12 hrs 59 mins
Moonrise: 1:21 AM
Moon Transit: 5:40 AM
Moonset: 10:01 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

5:10 AM - 7:40 AM
7:56 PM - 10:26 PM

Minor Periods

9:31 AM - 11:01 AM
12:51 AM - 2:21 AM

Action Rating: 2 out of 5

Thursday, April 9, 2026

Weather Forecast

Partly Cloudy
48°F
32.4°F
38.8°F
82%
0 in
0%
0%
10.1 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 8.91 μg/m3
PM10: 12.99 μg/m3
Carbon Monoxide: 172.21 μg/m3
Nitrogen Dioxide: 7.06 μg/m3
Sulphur Dioxide: 2.17 μg/m3
Ozone: 92.28 μg/m3

Astronomical

Sunrise: 6:24 AM
Sun Transit: 12:54 AM
Sunset: 7:25 PM
Daylight: 13 hrs 1 mins
Moonrise: 2:09 AM
Moon Transit: 6:32 AM
Moonset: 10:58 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

6:02 AM - 8:32 AM
8:46 PM - 11:16 PM

Minor Periods

10:28 AM - 11:58 AM
1:39 AM - 3:09 AM

Action Rating: 3 out of 5

Friday, April 10, 2026

Weather Forecast

Mist
53.8°F
35.6°F
42.3°F
83%
0 in
0%
0%
14.1 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 12.89 μg/m3
PM10: 17.31 μg/m3
Carbon Monoxide: 201.58 μg/m3
Nitrogen Dioxide: 10.74 μg/m3
Sulphur Dioxide: 2.8 μg/m3
Ozone: 82.28 μg/m3

Astronomical

Sunrise: 6:22 AM
Sun Transit: 12:53 AM
Sunset: 7:26 PM
Daylight: 13 hrs 4 mins
Moonrise: 2:50 AM
Moon Transit: 7:22 AM
Moonset: 12:01 AM
Moon Phase: Last Quarter
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

6:52 AM - 9:22 AM
12:00 AM - 12:00 AM

Minor Periods

11:31 AM - 1:01 PM
2:20 AM - 3:50 AM

Action Rating: 3 out of 5

Saturday, April 11, 2026

Weather Forecast

Sunny
58.8°F
47.1°F
53°F
54%
0 in
0%
0%
13.4 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 12.01 μg/m3
PM10: 14.58 μg/m3
Carbon Monoxide: 177.63 μg/m3
Nitrogen Dioxide: 13.51 μg/m3
Sulphur Dioxide: 3.07 μg/m3
Ozone: 71.31 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 12:53 AM
Sunset: 7:27 PM
Daylight: 13 hrs 6 mins
Moonrise: 3:23 AM
Moon Transit: 8:11 AM
Moonset: 1:06 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

7:41 AM - 10:11 AM
12:00 AM - 12:00 AM

Minor Periods

12:36 AM - 2:06 PM
2:53 AM - 4:23 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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