Water Temperature of the Atlantic Ocean Near Islip, NY

Current Water Temperature

69.4°F

Measurement Time: Wednesday, October 8, 2025, 11:20 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 / 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

66°F
Sunny
Conditions: Sunny
Humidity: 59%
Feels Like: 66°F
Wind: NNW 10.7 mph
Wind Gusts: 14.1 mph
Pressure: 30 in
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 9 mi
UV Index: 0.8

Five Day Weather Forecast

Moderate rain
Wed
H: 71°F
L: 54°F
Sunny
Thu
H: 61°F
L: 52°F
Sunny
Fri
H: 60°F
L: 48°F
Partly Cloudy
Sat
H: 66°F
L: 57°F
Heavy rain
Sun
H: 61°F
L: 56°F

Air Quality

AQI: 1 - Good
PM2.5: 4.15 μg/m3
PM10: 4.15 μg/m3
Carbon Monoxide: 169.85 μg/m3
Nitrogen Dioxide: 11.25 μg/m3
Sulphur Dioxide: 2.55 μg/m3
Ozone: 68 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:40 AM
Sunset: 6:23 PM
Daylight: 11 hrs 27 mins
Moonrise: 7:03 PM
Moon Transit: 1:31 AM
Moonset: 8:46 AM
Moon Phase: Full
Moon Illumination: 95.8%

Best Times for Fishing or Hunting

Major Periods

1:01 AM - 3:31 AM
3:49 PM - 6:19 PM

Minor Periods

6:33 PM - 8:03 PM
8:16 AM - 9:46 AM

Action Rating: 5 out of 5

Coastal Flood Statement issued October 8 at 2:07PM EDT until October 9 at 11:00AM EDT by NWS Upton NY

Effective: Wed October 8, 2025, 2:07 PM
Expires: Thu October 9, 2025, 4:00 AM

* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline.. * WHERE...Southern Nassau County. * WHEN...Thursday morning. * IMPACTS...Some water on low lying roads and property. * ADDITIONAL DETAILS...Total water levels are only expected to approach and possibly just meet minor flood benchmarks Thursday morning. Another round of coastal flooding, potentially more significant and more widespread is possible later in the weekend.

Do not drive through flooded roadways.


Freeze Watch issued October 8 at 2:40AM EDT until October 10 at 9:00AM EDT by NWS Upton NY

Effective: Wed October 8, 2025, 2:40 AM
Expires: Wed October 8, 2025, 4:00 PM

* WHAT...Sub-freezing temperatures as low as 28 possible. * WHERE...In Connecticut, Northern Fairfield, Northern Middlesex, Northern New Haven, and Northern New London Counties. In New Jersey, Western Passaic County. In New York, Northern Westchester, Orange, Putnam, and Rockland Counties. * WHEN...From late Thursday night through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops and other sensitive vegetation.

Take steps now to protect tender plants from the cold.


Freeze Watch issued October 8 at 1:45PM EDT until October 10 at 9:00AM EDT by NWS Upton NY

Effective: Wed October 8, 2025, 1:45 PM
Expires: Thu October 9, 2025, 4:00 AM

* WHAT...Sub-freezing temperatures as low as 29 possible. * WHERE...In Connecticut, Northern Fairfield, Northern Middlesex, Northern New Haven, and Northern New London Counties. In New Jersey, Western Passaic County. In New York, Northern Westchester, Orange, Putnam, and Rockland Counties. * WHEN...From late Thursday night through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops and other sensitive vegetation.

Take steps now to protect tender plants from the cold.


Coastal Flood Statement issued October 8 at 3:04AM EDT until October 8 at 2:00PM EDT by NWS Upton NY

Effective: Wed October 8, 2025, 3:04 AM
Expires: Wed October 8, 2025, 2:00 PM

* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southern Fairfield County. * WHEN...From 11 AM this morning to 2 PM EDT this afternoon. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline.

Do not drive through flooded roadways.


Coastal Flood Statement issued October 8 at 2:07PM EDT until October 9 at 3:00PM EDT by NWS Upton NY

Effective: Wed October 8, 2025, 2:07 PM
Expires: Thu October 9, 2025, 4:00 AM

* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southern Fairfield County. * WHEN...Thursday afternoon. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline. * ADDITIONAL DETAILS...Another round of coastal flooding, potentially more significant and more widespread is possible later in the weekend.

Do not drive through flooded roadways.
Wednesday, October 8, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 66°F
Average Humidity: 78%
Chance of Rain: 60%
Wind: 17.2 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 4.47 μg/m3
PM10: 5.6 μg/m3
Carbon Monoxide: 148.45 μg/m3
Nitrogen Dioxide: 7.37 μg/m3
Sulphur Dioxide: 2.27 μg/m3
Ozone: 72.12 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:40 AM
Sunset: 6:23 PM
Daylight: 11 hrs 27 mins
Moonrise: 7:03 PM
Moon Transit: 1:31 AM
Moonset: 8:46 AM
Moon Phase: Full
Moon Illumination: 95.8%

Best Times for Fishing or Hunting

Major Periods

1:01 AM - 3:31 AM
3:49 PM - 6:19 PM

Minor Periods

6:33 PM - 8:03 PM
8:16 AM - 9:46 AM

Action Rating: 5 out of 5

Thursday, October 9, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 55.6°F
Average Humidity: 48%
Chance of Rain: 0%
Wind: 16.1 mph
UV Index: 1

Air Quality

AQI: 1 - Good
PM2.5: 3.39 μg/m3
PM10: 3.43 μg/m3
Carbon Monoxide: 156.49 μg/m3
Nitrogen Dioxide: 8.07 μg/m3
Sulphur Dioxide: 2.42 μg/m3
Ozone: 62.96 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:39 AM
Sunset: 6:22 PM
Daylight: 11 hrs 24 mins
Moonrise: 7:41 PM
Moon Transit: 2:27 AM
Moonset: 10:07 AM
Moon Phase: Waning Gibbous
Moon Illumination: 90.1%

Best Times for Fishing or Hunting

Major Periods

1:57 AM - 4:27 AM
4:48 PM - 7:18 PM

Minor Periods

7:11 PM - 8:41 PM
9:37 AM - 11:07 AM

Action Rating: 2 out of 5

Friday, October 10, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 54.1°F
Average Humidity: 54%
Chance of Rain: 0%
Wind: 9.4 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 5.33 μg/m3
PM10: 6.04 μg/m3
Carbon Monoxide: 182.93 μg/m3
Nitrogen Dioxide: 11.53 μg/m3
Sulphur Dioxide: 2.65 μg/m3
Ozone: 62.52 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:39 AM
Sunset: 6:20 PM
Daylight: 11 hrs 22 mins
Moonrise: 8:29 PM
Moon Transit: 3:28 AM
Moonset: 11:27 AM
Moon Phase: Waning Gibbous
Moon Illumination: 82.3%

Best Times for Fishing or Hunting

Major Periods

2:58 AM - 5:28 AM
5:50 PM - 8:20 PM

Minor Periods

7:59 PM - 9:29 PM
10:57 AM - 12:27 AM

Action Rating: 2 out of 5

Saturday, October 11, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 60.6°F
Average Humidity: 63%
Chance of Rain: 0%
Wind: 11.4 mph
UV Index: 0.6

Air Quality

AQI: 1 - Good
PM2.5: 8.21 μg/m3
PM10: 10.83 μg/m3
Carbon Monoxide: 283.81 μg/m3
Nitrogen Dioxide: 11.11 μg/m3
Sulphur Dioxide: 2.46 μg/m3
Ozone: 68.68 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 12:39 AM
Sunset: 6:19 PM
Daylight: 11 hrs 19 mins
Moonrise: 9:26 PM
Moon Transit: 4:31 AM
Moonset: 12:41 AM
Moon Phase: Waning Gibbous
Moon Illumination: 72.9%

Best Times for Fishing or Hunting

Major Periods

4:01 AM - 6:31 AM
6:54 PM - 9:24 PM

Minor Periods

8:56 PM - 10:26 PM
12:11 AM - 1:41 PM

Action Rating: 3 out of 5

Sunday, October 12, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 58.9°F
Average Humidity: 81%
Chance of Rain: 70%
Wind: 34.4 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 5.34 μg/m3
PM10: 7.13 μg/m3
Carbon Monoxide: 247.23 μg/m3
Nitrogen Dioxide: 6.87 μg/m3
Sulphur Dioxide: 2.13 μg/m3
Ozone: 70.38 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 12:39 AM
Sunset: 6:17 PM
Daylight: 11 hrs 17 mins
Moonrise: 10:33 PM
Moon Transit: 5:35 AM
Moonset: 1:43 PM
Moon Phase: Waning Gibbous
Moon Illumination: 62.3%

Best Times for Fishing or Hunting

Major Periods

5:05 AM - 7:35 AM
7:57 PM - 10:27 PM

Minor Periods

10:03 PM - 11:33 PM
1:13 PM - 2:43 PM

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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