Water Temperature of Great South Bay in West Sayville, NY
Current Water Temperature
Measurement Time: Thursday, February 13, 2025, 6:54 PM EST
Temperature Locations
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Local Points of Interest
Green Creek; Sayville Beach & MarinaStation Name: GREAT SOUTH BAY AT WEST SAYVILLE NY
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 0 feet
Nearest Address:
198 Atlantic Ave
West Sayville, NY 11796
Suffolk County
GPS Coordinates: 40.72105556, -73.09125
Nearby Water Temperatures
Flax Pond, Old Field, NY (16.9 mi)Reynolds Channel, Point Lookout, NY (27.3 mi)
Peconic River, Riverhead, NY (27.3 mi)
Frost Creek, Lattingtown, NY (29.2 mi)
Hempstead Lake, Lakeview, NY (29.2 mi)
Mill River, Fairfield, CT (29.7 mi)
Norwalk Harbor, Norwalk, CT (29.8 mi)
Saugatuck River, Westport, CT (30.1 mi)
Mill River, Southport, CT (30.1 mi)
Hog Island Channel, Island Park, NY (30.6 mi)
Norwalk River, Norwalk, CT (31.3 mi)
Saugatuck River, Westport Village, CT (31.4 mi)
Bridgeport Harbor, Bridgeport, CT (31.6 mi)
Norwalk River, Norwalk, CT (31.7 mi)
Housatonic River, Stratford, CT (32.3 mi)
Weather for West Sayville, New York
Current Weather

Five Day Weather Forecast

Mon
H: 78°F
L: 66°F

Tue
H: 72°F
L: 59°F

Wed
H: 73°F
L: 63°F

Thu
H: 86°F
L: 68°F

Fri
H: 79°F
L: 66°F
Air Quality
Nitrogen Dioxide: 4.2 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 105 μg/m3
Astronomical
Sun Transit: 12:52 AM
Sunset: 8:26 PM
Daylight: 15 hrs 5 mins
Moon Transit: 1:31 PM
Moonset: 9:37 PM
Moon Phase: New
Moon Illumination: 3.8%
Best Times for Fishing or Hunting
Major Periods
2:48 AM - 5:18 AM1:01 PM - 3:31 PM
Minor Periods
9:07 PM - 10:37 PM4:51 AM - 6:21 AM
Action Rating: 5 out of 5
Coastal Flood Statement issued June 14 at 3:03PM EDT until June 14 at 11:00PM EDT by NWS Upton NY
Effective: Sun June 14, 2026, 3:03 PM
Expires: Sun June 14, 2026, 11:00 PM
* WHAT...For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Statement, up to one quarter foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southeast Suffolk County. * WHEN...For the High Rip Current Risk, until 9 PM EDT this evening. For the Coastal Flood Statement, from 7 PM to 11 PM EDT this evening. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline. 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.
Do not drive through flooded roadways. 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 June 14 at 3:03PM EDT until June 14 at 9:00PM EDT by NWS Upton NY
Effective: Sun June 14, 2026, 3:03 PM
Expires: Sun June 14, 2026, 9:00 PM
* WHAT...Dangerous rip currents. * WHERE...Kings (Brooklyn) and Southwest Suffolk Counties. * WHEN...Until 9 PM EDT this evening. * IMPACTS...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.
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 June 14 at 3:03PM EDT until June 14 at 9:00PM EDT by NWS Upton NY
Effective: Sun June 14, 2026, 3:03 PM
Expires: Sun June 14, 2026, 11:00 PM
* WHAT...For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Statement, up to one quarter foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southeast Suffolk County. * WHEN...For the High Rip Current Risk, until 9 PM EDT this evening. For the Coastal Flood Statement, from 7 PM to 11 PM EDT this evening. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline. 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.
Do not drive through flooded roadways. 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 Statement issued June 14 at 3:03PM EDT until June 15 at 11:00PM EDT by NWS Upton NY
Effective: Sun June 14, 2026, 3:03 PM
Expires: Mon June 15, 2026, 6:00 AM
* WHAT...For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Advisory, up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. For the Coastal Flood Statement, up to one quarter foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southern Nassau County. * WHEN...For the High Rip Current Risk, until 9 PM EDT this evening. For the Coastal Flood Advisory, from 6 PM to 10 PM EDT this evening. For the Coastal Flood Statement, Monday 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. 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.
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. 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 June 14 at 3:03PM EDT until June 14 at 10:00PM EDT by NWS Upton NY
Effective: Sun June 14, 2026, 3:03 PM
Expires: Mon June 15, 2026, 6:00 AM
* WHAT...For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Advisory, up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. For the Coastal Flood Statement, up to one quarter foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southern Nassau County. * WHEN...For the High Rip Current Risk, until 9 PM EDT this evening. For the Coastal Flood Advisory, from 6 PM to 10 PM EDT this evening. For the Coastal Flood Statement, Monday 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. 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.
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. 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.
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.74 μg/m3
Sulphur Dioxide: 0.84 μg/m3
Ozone: 89.42 μg/m3
Astronomical
Sun Transit: 12:52 AM
Sunset: 8:26 PM
Daylight: 15 hrs 5 mins
Moon Transit: 1:31 PM
Moonset: 9:37 PM
Moon Phase: New
Moon Illumination: 3.8%
Best Times for Fishing or Hunting
Major Periods
2:48 AM - 5:18 AM1:01 PM - 3:31 PM
Minor Periods
9:07 PM - 10:37 PM4:51 AM - 6:21 AM
Action Rating: 5 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.65 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 78.42 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 8:26 PM
Daylight: 15 hrs 6 mins
Moon Transit: 2:37 PM
Moonset: 10:28 PM
Moon Phase: New
Moon Illumination: 1.0%
Best Times for Fishing or Hunting
Major Periods
3:56 AM - 6:26 AM2:07 PM - 4:37 PM
Minor Periods
9:58 PM - 11:28 PM6:06 AM - 7:36 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.65 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 88.5 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 8:26 PM
Daylight: 15 hrs 6 mins
Moon Transit: 3:38 PM
Moonset: 11:07 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.6%
Best Times for Fishing or Hunting
Major Periods
4:59 AM - 7:29 AM3:08 PM - 5:38 PM
Minor Periods
12:00 AM - 12:00 AM7:26 AM - 8:56 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.17 μg/m3
Sulphur Dioxide: 0.66 μg/m3
Ozone: 101.63 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 8:27 PM
Daylight: 15 hrs 6 mins
Moon Transit: 4:32 PM
Moonset: 12:07 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%
Best Times for Fishing or Hunting
Major Periods
5:56 AM - 8:26 AM4:02 PM - 6:32 PM
Minor Periods
8:44 AM - 10:14 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.41 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 81.56 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 8:27 PM
Daylight: 15 hrs 6 mins
Moon Transit: 5:22 PM
Moonset: 12:38 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.3%
Best Times for Fishing or Hunting
Major Periods
6:48 AM - 9:18 AM4:52 PM - 7:22 PM
Minor Periods
9:59 AM - 11:29 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
