Water Temperature of the Atlantic Ocean Near Islip, NY

Current Water Temperature

74.5°F

Measurement Time: Monday, August 18, 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

81°F
Sunny
Conditions: Sunny
Humidity: 37%
Feels Like: 79.7°F
Wind: S 8.9 mph
Wind Gusts: 10.8 mph
Pressure: 30 in
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 9 mi
UV Index: 2

Five Day Weather Forecast

Sunny
Fri
H: 86°F
L: 61°F
Sunny
Sat
H: 85°F
L: 68°F
Partly Cloudy
Sun
H: 81°F
L: 70°F
Patchy rain nearby
Mon
H: 81°F
L: 72°F
Sunny
Tue
H: 78°F
L: 67°F

Air Quality

AQI: 2 - Moderate
PM2.5: 21.46 μg/m3
PM10: 23.68 μg/m3
Carbon Monoxide: 551.3 μg/m3
Nitrogen Dioxide: 40.7 μg/m3
Sulphur Dioxide: 3.7 μg/m3
Ozone: 97 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 12:55 AM
Sunset: 7:39 PM
Daylight: 13 hrs 28 mins
Moonrise: 5:16 AM
Moon Transit: 12:32 AM
Moonset: 7:35 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:57 AM - 4:27 AM
12:02 AM - 2:32 PM

Minor Periods

7:05 PM - 8:35 PM
4:46 AM - 6:16 AM

Action Rating: 4 out of 5

Rip Current Statement issued August 22 at 5:28AM EDT until August 23 at 8:00PM EDT by NWS Upton NY

Effective: Fri August 22, 2025, 5:28 AM
Expires: Fri August 22, 2025, 3:00 PM

* WHAT...For the High Surf Advisory, large breaking waves of 5 to 9 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. For the first Coastal Flood Advisory, up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. For the second Coastal Flood Advisory, up to one foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southwest Suffolk and Southern Nassau Counties. * WHEN...For the High Surf Advisory, until 8 PM EDT this evening. For the High Rip Current Risk, through Saturday evening. For the first Coastal Flood Advisory, until 1 PM EDT this afternoon. For the second Coastal Flood Advisory, from 6 PM this evening to 2 AM EDT Saturday. * COASTAL FLOOD IMPACTS...Widespread minor flooding of vulnerable areas near the waterfront and shoreline with this evening's high tide. Expect 1 to 1 1/2 ft of inundation above ground level in low lying, vulnerable areas. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. * SWIMMING IMPACTS...Life-threatening swimming and surfing conditions and localized beach erosion. 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. * SHORELINE IMPACTS...The threat for dune erosion and beach flooding will increase with successive high tides thru Fri morning. Widespread areas of dune erosion with localized overwashes are expected during the Thu evening and Fri morning high tides.

Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inexperienced swimmers should remain out of the water due to dangerous surf conditions. 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.


Coastal Flood Advisory issued August 22 at 5:28AM EDT until August 23 at 2:00AM EDT by NWS Upton NY

Effective: Fri August 22, 2025, 5:28 AM
Expires: Fri August 22, 2025, 3:00 PM

* WHAT...For the High Surf Advisory, large breaking waves of 5 to 9 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. For the first Coastal Flood Advisory, up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. For the second Coastal Flood Advisory, up to one foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southwest Suffolk and Southern Nassau Counties. * WHEN...For the High Surf Advisory, until 8 PM EDT this evening. For the High Rip Current Risk, through Saturday evening. For the first Coastal Flood Advisory, until 1 PM EDT this afternoon. For the second Coastal Flood Advisory, from 6 PM this evening to 2 AM EDT Saturday. * COASTAL FLOOD IMPACTS...Widespread minor flooding of vulnerable areas near the waterfront and shoreline with this evening's high tide. Expect 1 to 1 1/2 ft of inundation above ground level in low lying, vulnerable areas. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. * SWIMMING IMPACTS...Life-threatening swimming and surfing conditions and localized beach erosion. 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. * SHORELINE IMPACTS...The threat for dune erosion and beach flooding will increase with successive high tides thru Fri morning. Widespread areas of dune erosion with localized overwashes are expected during the Thu evening and Fri morning high tides.

Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inexperienced swimmers should remain out of the water due to dangerous surf conditions. 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.


High Surf Advisory issued August 22 at 5:28AM EDT until August 22 at 8:00PM EDT by NWS Upton NY

Effective: Fri August 22, 2025, 5:28 AM
Expires: Fri August 22, 2025, 3:00 PM

* WHAT...For the High Surf Advisory, large breaking waves of 5 to 9 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. For the first Coastal Flood Advisory, up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. For the second Coastal Flood Advisory, up to one foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southwest Suffolk and Southern Nassau Counties. * WHEN...For the High Surf Advisory, until 8 PM EDT this evening. For the High Rip Current Risk, through Saturday evening. For the first Coastal Flood Advisory, until 1 PM EDT this afternoon. For the second Coastal Flood Advisory, from 6 PM this evening to 2 AM EDT Saturday. * COASTAL FLOOD IMPACTS...Widespread minor flooding of vulnerable areas near the waterfront and shoreline with this evening's high tide. Expect 1 to 1 1/2 ft of inundation above ground level in low lying, vulnerable areas. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. * SWIMMING IMPACTS...Life-threatening swimming and surfing conditions and localized beach erosion. 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. * SHORELINE IMPACTS...The threat for dune erosion and beach flooding will increase with successive high tides thru Fri morning. Widespread areas of dune erosion with localized overwashes are expected during the Thu evening and Fri morning high tides.

Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inexperienced swimmers should remain out of the water due to dangerous surf conditions. 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.


Coastal Flood Advisory issued August 22 at 5:28AM EDT until August 22 at 1:00PM EDT by NWS Upton NY

Effective: Fri August 22, 2025, 5:28 AM
Expires: Fri August 22, 2025, 3:00 PM

* WHAT...For the High Surf Advisory, large breaking waves of 5 to 9 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. For the first Coastal Flood Advisory, up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. For the second Coastal Flood Advisory, up to one foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southwest Suffolk and Southern Nassau Counties. * WHEN...For the High Surf Advisory, until 8 PM EDT this evening. For the High Rip Current Risk, through Saturday evening. For the first Coastal Flood Advisory, until 1 PM EDT this afternoon. For the second Coastal Flood Advisory, from 6 PM this evening to 2 AM EDT Saturday. * COASTAL FLOOD IMPACTS...Widespread minor flooding of vulnerable areas near the waterfront and shoreline with this evening's high tide. Expect 1 to 1 1/2 ft of inundation above ground level in low lying, vulnerable areas. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. * SWIMMING IMPACTS...Life-threatening swimming and surfing conditions and localized beach erosion. 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. * SHORELINE IMPACTS...The threat for dune erosion and beach flooding will increase with successive high tides thru Fri morning. Widespread areas of dune erosion with localized overwashes are expected during the Thu evening and Fri morning high tides.

Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inexperienced swimmers should remain out of the water due to dangerous surf conditions. 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.


Rip Current Statement issued August 22 at 5:28AM EDT until August 23 at 8:00PM EDT by NWS Upton NY

Effective: Fri August 22, 2025, 5:28 AM
Expires: Fri August 22, 2025, 3:00 PM

* WHAT...For the High Surf Advisory, large breaking waves of 5 to 9 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. For the first Coastal Flood Advisory, up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. For the second Coastal Flood Advisory, up to one foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southwest Suffolk and Southern Nassau Counties. * WHEN...For the High Surf Advisory, until 8 PM EDT this evening. For the High Rip Current Risk, through Saturday evening. For the first Coastal Flood Advisory, until 1 PM EDT this afternoon. For the second Coastal Flood Advisory, from 6 PM this evening to 2 AM EDT Saturday. * COASTAL FLOOD IMPACTS...Widespread minor flooding of vulnerable areas near the waterfront and shoreline with this evening's high tide. Expect 1 to 1 1/2 ft of inundation above ground level in low lying, vulnerable areas. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. * SWIMMING IMPACTS...Life-threatening swimming and surfing conditions and localized beach erosion. 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. * SHORELINE IMPACTS...The threat for dune erosion and beach flooding will increase with successive high tides thru Fri morning. Widespread areas of dune erosion with localized overwashes are expected during the Thu evening and Fri morning high tides.

Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inexperienced swimmers should remain out of the water due to dangerous surf conditions. 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.


Friday, August 22, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 72.3°F
Average Humidity: 53%
Chance of Rain: 0%
Wind: 14.1 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 8.62 μg/m3
PM10: 9.18 μg/m3
Carbon Monoxide: 335.59 μg/m3
Nitrogen Dioxide: 11.97 μg/m3
Sulphur Dioxide: 3.15 μg/m3
Ozone: 91.88 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 12:55 AM
Sunset: 7:39 PM
Daylight: 13 hrs 28 mins
Moonrise: 5:16 AM
Moon Transit: 12:32 AM
Moonset: 7:35 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:57 AM - 4:27 AM
12:02 AM - 2:32 PM

Minor Periods

7:05 PM - 8:35 PM
4:46 AM - 6:16 AM

Action Rating: 4 out of 5

Saturday, August 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 75°F
Average Humidity: 59%
Chance of Rain: 0%
Wind: 15.9 mph
UV Index: 2

Air Quality

AQI: 2 - Moderate
PM2.5: 20.69 μg/m3
PM10: 21.88 μg/m3
Carbon Monoxide: 406.56 μg/m3
Nitrogen Dioxide: 35.56 μg/m3
Sulphur Dioxide: 9.03 μg/m3
Ozone: 100.76 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 12:55 AM
Sunset: 7:38 PM
Daylight: 13 hrs 26 mins
Moonrise: 6:26 AM
Moon Transit: 1:18 PM
Moonset: 7:58 PM
Moon Phase: New
Moon Illumination: 1.4%

Best Times for Fishing or Hunting

Major Periods

2:44 AM - 5:14 AM
12:48 AM - 3:18 PM

Minor Periods

7:28 PM - 8:58 PM
5:56 AM - 7:26 AM

Action Rating: 5 out of 5

Sunday, August 24, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 74.8°F
Average Humidity: 73%
Chance of Rain: 0%
Wind: 14.3 mph
UV Index: 2

Air Quality

AQI: 1 - Good
PM2.5: 13.9 μg/m3
PM10: 19.1 μg/m3
Carbon Monoxide: 269.14 μg/m3
Nitrogen Dioxide: 6.59 μg/m3
Sulphur Dioxide: 2.03 μg/m3
Ozone: 91.32 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 12:54 AM
Sunset: 7:36 PM
Daylight: 13 hrs 23 mins
Moonrise: 7:31 AM
Moon Transit: 2:00 PM
Moonset: 8:19 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

3:28 AM - 5:58 AM
1:30 PM - 4:00 PM

Minor Periods

7:49 PM - 9:19 PM
7:01 AM - 8:31 AM

Action Rating: 5 out of 5

Monday, August 25, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 75.1°F
Average Humidity: 79%
Chance of Rain: 70%
Wind: 13 mph
UV Index: 1.9

Air Quality

AQI: 2 - Moderate
PM2.5: 15.98 μg/m3
PM10: 22.82 μg/m3
Carbon Monoxide: 255 μg/m3
Nitrogen Dioxide: 8.32 μg/m3
Sulphur Dioxide: 1.97 μg/m3
Ozone: 81.24 μg/m3

Astronomical

Sunrise: 6:14 AM
Sun Transit: 12:54 AM
Sunset: 7:35 PM
Daylight: 13 hrs 21 mins
Moonrise: 8:35 AM
Moon Transit: 2:42 PM
Moonset: 8:39 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

4:10 AM - 6:40 AM
2:12 PM - 4:42 PM

Minor Periods

8:09 PM - 9:39 PM
8:05 AM - 9:35 AM

Action Rating: 4 out of 5

Tuesday, August 26, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 72.5°F
Average Humidity: 45%
Chance of Rain: 0%
Wind: 10.3 mph
UV Index: 0.1

Air Quality

AQI: 2 - Moderate
PM2.5: 17.85 μg/m3
PM10: 18.66 μg/m3
Carbon Monoxide: 388.78 μg/m3
Nitrogen Dioxide: 28.86 μg/m3
Sulphur Dioxide: 8.25 μg/m3
Ozone: 72 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 12:54 AM
Sunset: 7:33 PM
Daylight: 13 hrs 18 mins
Moonrise: 9:36 AM
Moon Transit: 3:22 PM
Moonset: 8:59 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

4:50 AM - 7:20 AM
2:52 PM - 5:22 PM

Minor Periods

8:29 PM - 9:59 PM
9:06 AM - 10:36 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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