Water Temperature of the Atlantic Ocean Near Islip, NY

Current Water Temperature

59.4°F 15.2°C
Cold Thermal Gear Required
59.4°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Cold shock risk with rapid dexterity loss (10–15 mins). Wetsuit or drysuit strongly advised for any immersion.

Measurement Time: Saturday, November 14, 2026, 6:40 AM EST

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)

Marine Weather for the Atlantic Ocean Near Islip, NY

Marine Weather

Coastal & Marine Conditions
Open-Meteo Marine
4.1ft 1.2 m
Moderate Chop Noticeable waves and spray. Small craft exercise standard caution.
Wave Period 5.8s
Wave Direction 55° NE
Swell Waves
2.8 ft
5.6s • 78° ENE
Wind Waves / Chop
2.4 ft
3.1s • 336° NNW
Ocean Current
0.4 mph
0.3 kn • 214° SW
Sea Surface Temp
59.7°F
Equivalent: 15.4°C

High & Low Tide Forecast

Falling (Ebb)
Next Tide: Low 11:00 AM (-2.6 ft)
0.0 ft (MSL) Fri, Nov 13 12 AM 6 AM 12 PM 6 PM 12 AM 6 AM Sat, Nov 14 Sun, Nov 15 ▼ Low 10:00 PM -2.1 ft ▲ High 4:00 AM +0.8 ft ▼ Low 11:00 AM -2.6 ft ▲ High 5:00 PM -0.3 ft ▼ Low 11:00 PM -2.6 ft ▲ High 5:00 AM +0.0 ft NOW
Low Tide Fri, Nov 13
10:00 PM
-2.1 ft (-0.63 m)
High Tide Sat, Nov 14
4:00 AM
+0.8 ft (0.24 m)
Low Tide Sat, Nov 14
11:00 AM
-2.6 ft (-0.79 m)
High Tide Sat, Nov 14
5:00 PM
-0.3 ft (-0.10 m)
Open-Meteo Tidal Model (Mean Sea Level MSL datum) • Times in station local timezone.

5-Day Marine Wave Forecast

Today
Nov 14
5.5 ft
6.7s • NE
Sun
Nov 15
4.5 ft
4.9s • NW
Mon
Nov 16
3.0 ft
4.8s • N
Tue
Nov 17
1.9 ft
6.4s • NNE
Wed
Nov 18
1.8 ft
4.6s • W

Weather Near Islip, New York

Current Weather

43.2°F
Overcast
Conditions: Overcast
Humidity: 72%
Feels Like: 31.3°F
Wind: NNW 19.9 mph
Wind Gusts: 20.4 mph
Pressure: 29.78 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 14.6 mi
UV Index: 0.6

Five-Day Weather Forecast

Overcast
Sat
H: 48°F
L: 43°F
Overcast
Sun
H: 49°F
L: 45°F
Mainly Sunny
Mon
H: 51°F
L: 44°F
Sunny
Tue
H: 56°F
L: 47°F
Sunny
Wed
H: 58°F
L: 53°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
4.2 μg/m³
Good
PM10
5 μg/m³
Good
Ozone (O3)
55 μg/m³
Photochemical
NO2
5.6 μg/m³
Nitrogen Dioxide
SO2
0.8 μg/m³
Sulfur Dioxide
CO
119 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 59m daylight
Sunrise 6:38 AM
Solar Noon 11:37 AM
Sunset 4:37 PM
Moon
Waxing Crescent • 21%
Moonrise 11:24 AM
Transit 4:01 PM
Moonset 8:45 PM

Best Times for Fishing or Hunting

Major Periods

3:07 AM - 5:37 AM
3:31 PM - 6:01 PM

Minor Periods

10:54 AM - 12:24 PM
8:15 PM - 9:45 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 45.9°F
Average Humidity: 68%
Chance of Rain: 12%
Wind: 27 mph
UV Index: 2.8

Air Quality

EPA Index 1 • Good
PM2.5
3.8 μg/m³
Good
PM10
4.7 μg/m³
Good
Ozone (O3)
55.1 μg/m³
Photochemical
NO2
6.2 μg/m³
Nitrogen Dioxide
SO2
0.8 μg/m³
Sulfur Dioxide
CO
125.1 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 59m daylight
Sunrise 6:38 AM
Solar Noon 11:37 AM
Sunset 4:37 PM
Moon
Waxing Crescent • 21%
Moonrise 11:24 AM
Transit 4:01 PM
Moonset 8:45 PM

Best Times for Fishing or Hunting

Major Periods

3:07 AM - 5:37 AM
3:31 PM - 6:01 PM

Minor Periods

10:54 AM - 12:24 PM
8:15 PM - 9:45 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 46.9°F
Average Humidity: 66%
Chance of Rain: 3%
Wind: 27.5 mph
UV Index: 3.2

Air Quality

EPA Index 1 • Good
PM2.5
2.1 μg/m³
Good
PM10
2.9 μg/m³
Good
Ozone (O3)
60 μg/m³
Photochemical
NO2
4.6 μg/m³
Nitrogen Dioxide
SO2
0.7 μg/m³
Sulfur Dioxide
CO
120.6 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 57m daylight
Sunrise 6:39 AM
Solar Noon 11:37 AM
Sunset 4:36 PM
Moon
Waxing Crescent • 31%
Moonrise 11:57 AM
Transit 4:48 PM
Moonset 9:47 PM

Best Times for Fishing or Hunting

Major Periods

3:55 AM - 6:25 AM
4:18 PM - 6:48 PM

Minor Periods

11:27 AM - 12:57 PM
9:17 PM - 10:47 PM
Action Rating:
Very Good 4/5
Monday, November 16, 2026

Weather Forecast

Conditions: Mainly Sunny
Average Temperature: 46.9°F
Average Humidity: 66%
Chance of Rain: 0%
Wind: 18.5 mph
UV Index: 3.2

Air Quality

EPA Index 1 • Good
PM2.5
3.2 μg/m³
Good
PM10
3.9 μg/m³
Good
Ozone (O3)
65.2 μg/m³
Photochemical
NO2
7.5 μg/m³
Nitrogen Dioxide
SO2
0.8 μg/m³
Sulfur Dioxide
CO
130.1 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 55m daylight
Sunrise 6:40 AM
Solar Noon 11:37 AM
Sunset 4:35 PM
Moon
First Quarter • 42%
Moonrise 12:24 PM
Transit 5:32 PM
Moonset 10:50 PM

Best Times for Fishing or Hunting

Major Periods

4:40 AM - 7:10 AM
5:02 PM - 7:32 PM

Minor Periods

11:54 AM - 1:24 PM
10:20 PM - 11:50 PM
Action Rating:
Good Action 3/5
Tuesday, November 17, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 49.6°F
Average Humidity: 64%
Chance of Rain: 0%
Wind: 14.4 mph
UV Index: 3.2

Air Quality

EPA Index 1 • Good
PM2.5
9 μg/m³
Good
PM10
10.3 μg/m³
Good
Ozone (O3)
51.6 μg/m³
Photochemical
NO2
17.6 μg/m³
Nitrogen Dioxide
SO2
2.1 μg/m³
Sulfur Dioxide
CO
161.9 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 53m daylight
Sunrise 6:41 AM
Solar Noon 11:37 AM
Sunset 4:34 PM
Moon
First Quarter • 54%
Moonrise 12:48 PM
Transit 6:15 PM
Moonset 11:53 PM

Best Times for Fishing or Hunting

Major Periods

5:24 AM - 7:54 AM
5:45 PM - 8:15 PM

Minor Periods

12:18 PM - 1:48 PM
11:23 PM - 12:53 AM
Action Rating:
Fair Action 2/5
Wednesday, November 18, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 55°F
Average Humidity: 62%
Chance of Rain: 0%
Wind: 16.9 mph
UV Index: 3.3

Air Quality

EPA Index 2 • Moderate
PM2.5
14.4 μg/m³
Moderate
PM10
16.2 μg/m³
Good
Ozone (O3)
34.7 μg/m³
Photochemical
NO2
30.7 μg/m³
Nitrogen Dioxide
SO2
2.6 μg/m³
Sulfur Dioxide
CO
236.5 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 51m daylight
Sunrise 6:42 AM
Solar Noon 11:37 AM
Sunset 4:34 PM
Moon
First Quarter • 65%
Moonrise 1:10 PM
Transit 6:58 PM
Moonset 1:35 AM

Best Times for Fishing or Hunting

Major Periods

6:07 AM - 8:37 AM
6:28 PM - 8:58 PM

Minor Periods

1:05 AM - 2:35 AM
12:40 PM - 2:10 PM
Action Rating:
Fair Action 2/5
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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