Water Temperature of the Atlantic Ocean Near Islip, NY

Current Water Temperature

64.6°F

Measurement Time: Sunday, October 19, 2025, 7:20 PM 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

63°F
Heavy rain
Conditions: Heavy rain
Humidity: 93%
Feels Like: 63°F
Wind: ESE 22.6 mph
Wind Gusts: 37.2 mph
Pressure: 29.51 in
Precipitation: 0.29 in
Cloud Cover: 100%
Visibility: 0 mi
UV Index: 0

Five Day Weather Forecast

Heavy rain
Thu
H: 53°F
L: 48°F
Moderate rain
Fri
H: 55°F
L: 48°F
Sunny
Sat
H: 58°F
L: 46°F
Sunny
Sun
H: 56°F
L: 47°F
Sunny
Mon
H: 58°F
L: 48°F

Air Quality

PM2.5: 3.05 μg/m3
PM10: 3.95 μg/m3
Carbon Monoxide: 125.85 μg/m3
Nitrogen Dioxide: 2.85 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 78 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:36 AM
Sunset: 5:52 PM
Daylight: 10 hrs 32 mins
Moonrise: 2:51 PM
Moon Transit: 8:00 PM
Moonset: 12:11 AM
Moon Phase: First Quarter
Moon Illumination: 63.7%

Best Times for Fishing or Hunting

Major Periods

9:25 AM - 11:55 AM
7:30 PM - 10:00 PM

Minor Periods

2:21 PM - 3:51 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Coastal Flood Advisory issued October 30 at 3:57AM EDT until October 30 at 6:00PM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 3:57 AM
Expires: Thu October 30, 2025, 6:00 PM

* WHAT...One to two feet of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southern Queens and Southern Nassau Counties. * WHEN...From 1 PM to 6 PM EDT this afternoon and evening. * COASTAL FLOOD IMPACTS...Minor flooding in the more vulnerable locations near the waterfront and shoreline. Some roads and low lying properties including parking lots, parks, lawns, and homes and businesses with basements near the waterfront will experience minor flooding. * SHORELINE IMPACTS...Breaking waves of 5 to 7 ft along the oceanfront will result in beach erosion flooding during the time of high tides with only minor damage possible to dune structures. * ADDITIONAL DETAILS...Locally moderate coastal flooding is possible across the most vulnerable locations along the shoreline in Southern Nassau.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Coastal Flood Statement issued October 30 at 3:57AM EDT until October 30 at 6:00PM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 3:57 AM
Expires: Thu October 30, 2025, 6:00 PM

* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southeast Suffolk County. * WHEN...This afternoon. * COASTAL FLOOD IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline. * SHORELINE IMPACTS...Breaking waves of 5 to 7 ft along the oceanfront will result in beach erosion flooding during the time of high tides with only minor damage possible to dune structures.

Do not drive through flooded roadways.


Coastal Flood Statement issued October 30 at 3:57AM EDT until October 30 at 8:00PM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 3:57 AM
Expires: Thu October 30, 2025, 8:00 PM

* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Northeast Suffolk County. * WHEN...From this afternoon through this evening. * COASTAL FLOOD IMPACTS...Some water on low lying roads and property. * SHORELINE IMPACTS...Breaking waves of 4 to 7 ft along the shoreline will result in beach erosion as well as splashover onto shoreline roads and properties. Minor damage to shorefront structures possible.

Do not drive through flooded roadways.


Coastal Flood Advisory issued October 30 at 3:57AM EDT until October 30 at 9:00PM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 3:57 AM
Expires: Thu October 30, 2025, 9:00 PM

* WHAT...One to locally two feet of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southwest Suffolk County. * WHEN...From 2 PM to 9 PM EDT this afternoon and evening. * IMPACTS...Minor flooding in the more vulnerable locations near the waterfront and shoreline. Some roads and low lying properties including parking lots, parks, lawns, and homes and businesses with basements near the waterfront will experience minor flooding. * ADDITIONAL DETAILS...Locally moderate coastal flooding is possible across the western Great South Bay during this evening's high tide. There is also potential of minor coastal flooding during high tide Friday morning.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Coastal Flood Statement issued October 30 at 3:57AM EDT until October 30 at 8:00PM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 3:57 AM
Expires: Thu October 30, 2025, 8:00 PM

* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Bronx County. * WHEN...From this afternoon through this evening. * IMPACTS...Some water on low lying roads and property.

Do not drive through flooded roadways.


Coastal Flood Advisory issued October 30 at 3:57AM EDT until October 30 at 5:00PM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 3:57 AM
Expires: Thu October 30, 2025, 5:00 PM

* WHAT...One to two feet of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...In New Jersey, Hudson, Eastern Essex and Eastern Union Counties. In New York, New York (Manhattan), Richmond (Staten Island) and Kings (Brooklyn) Counties. * WHEN...From 1 PM to 5 PM EDT this afternoon. * IMPACTS...Minor flooding of the more vulnerable locations near the waterfront and shoreline. Some roads and low lying properties including parking lots, parks, lawns, and homes and businesses with basements near the waterfront will experience minor flooding.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Coastal Flood Advisory issued October 30 at 3:57AM EDT until October 30 at 8:00PM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 3:57 AM
Expires: Thu October 30, 2025, 8:00 PM

* WHAT...Up to one foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...In Connecticut, Southern Fairfield County. In New York, Southern Westchester County. * WHEN...From 4 PM to 8 PM EDT this afternoon and evening. * IMPACTS...Minor flooding in the more vulnerable locations near the waterfront and shoreline. Some roads and low lying properties including parking lots, parks, lawns, and homes and businesses with basements near the waterfront will experience minor flooding.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Thursday, October 30, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 51.8°F
Average Humidity: 91%
Chance of Rain: 83%
Wind: 24.4 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 5.19 μg/m3
PM10: 6.91 μg/m3
Carbon Monoxide: 150.13 μg/m3
Nitrogen Dioxide: 7.07 μg/m3
Sulphur Dioxide: 1.91 μg/m3
Ozone: 63.92 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:36 AM
Sunset: 5:52 PM
Daylight: 10 hrs 32 mins
Moonrise: 2:51 PM
Moon Transit: 8:00 PM
Moonset: 12:11 AM
Moon Phase: First Quarter
Moon Illumination: 63.7%

Best Times for Fishing or Hunting

Major Periods

9:25 AM - 11:55 AM
7:30 PM - 10:00 PM

Minor Periods

2:21 PM - 3:51 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, October 31, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 53.1°F
Average Humidity: 81%
Chance of Rain: 77%
Wind: 24.2 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 4.14 μg/m3
PM10: 4.61 μg/m3
Carbon Monoxide: 175.45 μg/m3
Nitrogen Dioxide: 9.6 μg/m3
Sulphur Dioxide: 3.9 μg/m3
Ozone: 63.24 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:36 AM
Sunset: 5:51 PM
Daylight: 10 hrs 29 mins
Moonrise: 3:16 PM
Moon Transit: 8:47 PM
Moonset: 1:19 AM
Moon Phase: First Quarter
Moon Illumination: 74.1%

Best Times for Fishing or Hunting

Major Periods

10:13 AM - 12:43 AM
8:17 PM - 10:47 PM

Minor Periods

2:46 PM - 4:16 PM
12:49 AM - 2:19 AM

Action Rating: 2 out of 5

Saturday, November 1, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 52.3°F
Average Humidity: 52%
Chance of Rain: 0%
Wind: 23.3 mph
UV Index: 0.6

Air Quality

AQI: 1 - Good
PM2.5: 2.87 μg/m3
PM10: 2.89 μg/m3
Carbon Monoxide: 168.69 μg/m3
Nitrogen Dioxide: 9.13 μg/m3
Sulphur Dioxide: 2.99 μg/m3
Ozone: 68.36 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:36 AM
Sunset: 5:49 PM
Daylight: 10 hrs 27 mins
Moonrise: 3:40 PM
Moon Transit: 9:34 PM
Moonset: 2:30 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

11:00 AM - 1:30 PM
9:04 PM - 11:34 PM

Minor Periods

3:10 PM - 4:40 PM
2:00 AM - 3:30 AM

Action Rating: 2 out of 5

Sunday, November 2, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 50°F
Average Humidity: 50%
Chance of Rain: 0%
Wind: 12.3 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 7 μg/m3
PM10: 7 μg/m3
Carbon Monoxide: 239.54 μg/m3
Nitrogen Dioxide: 30.92 μg/m3
Sulphur Dioxide: 5.18 μg/m3
Ozone: 26.85 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:36 AM
Sunset: 5:48 PM
Daylight: 10 hrs 25 mins
Moonrise: 4:04 PM
Moon Transit: 12:31 AM
Moonset: 3:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.9%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 PM
12:01 AM - 2:31 PM

Minor Periods

3:34 PM - 5:04 PM
3:12 AM - 4:42 AM

Action Rating: 2 out of 5

Monday, November 3, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 53.9°F
Average Humidity: 61%
Chance of Rain: 0%
Wind: 13 mph
UV Index: 4

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:36 AM
Sunset: 5:47 PM
Daylight: 10 hrs 22 mins
Moonrise: 4:29 PM
Moon Transit: 11:14 PM
Moonset: 4:56 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.3%

Best Times for Fishing or Hunting

Major Periods

12:37 AM - 3:07 PM
12:00 AM - 12:00 AM

Minor Periods

3:59 PM - 5:29 PM
4:26 AM - 5:56 AM

Action Rating: 3 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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