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 & MarinaSponsored Content
Station Name: GREAT SOUTH BAY AT WEST SAYVILLE NY
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 0 feet / 0 meters
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

Humidity: 97%
Feels Like: 49.7°F
Wind: WNW 15 mph
Wind Gusts: 20.6 mph
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 6 mi
UV Index: 0
Five Day Weather Forecast

Sat
H: 72°F
L: 51°F

Sun
H: 72°F
L: 58°F

Mon
H: 62°F
L: 54°F

Tue
H: 66°F
L: 56°F

Wed
H: 63°F
L: 59°F
Air Quality
Nitrogen Dioxide: 17.95 μg/m3
Sulphur Dioxide: 4.26 μg/m3
Ozone: 49 μg/m3
Astronomical
Sun Transit: 12:48 AM
Sunset: 7:58 PM
Daylight: 14 hrs 18 mins
Moon Transit: 11:37 PM
Moonset: 4:24 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.1%
Best Times for Fishing or Hunting
Major Periods
1:05 PM - 3:35 PM12:00 AM - 12:00 AM
Minor Periods
5:51 PM - 7:21 PM3:54 AM - 5:24 AM
Action Rating: 3 out of 5
Flood Warning issued May 9 at 1:28PM EDT until May 11 at 9:30PM EDT by NWS Albany NY
Effective: Fri May 9, 2025, 1:28 PM
Expires: Sat May 10, 2025, 1:30 AM
* WHAT...Minor flooding is forecast. * WHERE...Housatonic River at Stevenson Dam. * WHEN...From this evening to late Sunday evening. * IMPACTS...At 11.0 feet, Flood stage. * ADDITIONAL DETAILS... - At 12:30 PM EDT Friday the stage was 9.2 feet. - Forecast...The river will rise above flood stage this evening to 11.2 feet just after midnight tonight. It will hold steady through Sunday morning before falling below flood stage Sunday afternoon. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood
Flood Warning issued May 9 at 1:28PM EDT until May 11 at 9:30PM EDT by NWS Albany NY
Effective: Fri May 9, 2025, 1:28 PM
Expires: Sat May 10, 2025, 1:30 AM
* WHAT...Minor flooding is forecast. * WHERE...Housatonic River at Stevenson Dam. * WHEN...From this evening to late Sunday evening. * IMPACTS...At 11.0 feet, Flood stage. * ADDITIONAL DETAILS... - At 12:30 PM EDT Friday the stage was 9.2 feet. - Forecast...The river will rise above flood stage this evening to 11.2 feet just after midnight tonight. It will hold steady through Sunday morning before falling below flood stage Sunday afternoon. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood
Flood Warning issued May 9 at 1:28PM EDT until May 11 at 9:30PM EDT by NWS Albany NY
Effective: Fri May 9, 2025, 1:28 PM
Expires: Sat May 10, 2025, 1:30 AM
* WHAT...Minor flooding is forecast. * WHERE...Housatonic River at Stevenson Dam. * WHEN...From this evening to late Sunday evening. * IMPACTS...At 11.0 feet, Flood stage. * ADDITIONAL DETAILS... - At 12:30 PM EDT Friday the stage was 9.2 feet. - Forecast...The river will rise above flood stage this evening to 11.2 feet just after midnight tonight. It will hold steady through Sunday morning before falling below flood stage Sunday afternoon. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood
Flood Warning issued May 9 at 1:28PM EDT until May 11 at 9:30PM EDT by NWS Albany NY
Effective: Fri May 9, 2025, 1:28 PM
Expires: Sat May 10, 2025, 1:30 AM
* WHAT...Minor flooding is forecast. * WHERE...Housatonic River at Stevenson Dam. * WHEN...From this evening to late Sunday evening. * IMPACTS...At 11.0 feet, Flood stage. * ADDITIONAL DETAILS... - At 12:30 PM EDT Friday the stage was 9.2 feet. - Forecast...The river will rise above flood stage this evening to 11.2 feet just after midnight tonight. It will hold steady through Sunday morning before falling below flood stage Sunday afternoon. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood
Flood Warning issued May 9 at 12:27PM EDT by NWS Boston/Norton MA
Effective: Fri May 9, 2025, 12:27 PM
Expires: Sat May 10, 2025, 12:30 AM
...The Flood Warning continues for the following rivers in Connecticut... Connecticut River At Middle Haddam affecting Middlesex County. Connecticut River At Hartford affecting Middlesex and Hartford Counties. For the Connecticut River...including Montague, Northampton, Holyoke Dam, Holyoke, Springfield, Thompsonville, Hartford, Middle Haddam... Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Connecticut River at Middle Haddam. * WHEN...Until further notice. * IMPACTS...At 7.0 feet, Flooding is likely in the vicinity of Meadow Road, Route 17A, in the Gildersleeve section of Portland. A portion of this roadway will likely be closed. This includes the Exchange Club of Portland Fairgrounds. Boating interests should prepare for a period of swift river flows during this period. * ADDITIONAL DETAILS... - At 11:55 AM EDT Friday the stage was 6.8 feet. - Bankfull stage is 7.0 feet. - Forecast...The river will fall to 6.4 feet late this evening. It will then rise to 6.6 feet late tonight. It will fall to 6.1 feet late tomorrow evening then rise again. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood
Caution is urged when walking near riverbanks. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued late tonight at 1230 AM EDT.
Weather Forecast
Average Temperature: 60.7°F
Average Humidity: 66%
Wind: 20.8 mph
UV Index: 1.9
Air Quality
Nitrogen Dioxide: 37.12 μg/m3
Sulphur Dioxide: 5.28 μg/m3
Ozone: 55.24 μg/m3
Astronomical
Sun Transit: 12:48 AM
Sunset: 7:58 PM
Daylight: 14 hrs 18 mins
Moon Transit: 11:37 PM
Moonset: 4:24 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.1%
Best Times for Fishing or Hunting
Major Periods
1:05 PM - 3:35 PM12:00 AM - 12:00 AM
Minor Periods
5:51 PM - 7:21 PM3:54 AM - 5:24 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 64.3°F
Average Humidity: 54%
Wind: 9.2 mph
UV Index: 2.2
Air Quality
Nitrogen Dioxide: 42.19 μg/m3
Sulphur Dioxide: 6.16 μg/m3
Ozone: 66.56 μg/m3
Astronomical
Sun Transit: 12:48 AM
Sunset: 7:59 PM
Daylight: 14 hrs 20 mins
Moon Transit: 12:00 AM
Moonset: 4:46 AM
Moon Phase: Full
Moon Illumination: 99.7%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM1:47 PM - 4:17 PM
Minor Periods
6:53 PM - 8:23 PM4:16 AM - 5:46 AM
Action Rating: 5 out of 5
Weather Forecast
Average Temperature: 58°F
Average Humidity: 61%
Wind: 9.2 mph
UV Index: 2.2
Air Quality
Nitrogen Dioxide: 60.57 μg/m3
Sulphur Dioxide: 6.87 μg/m3
Ozone: 52.24 μg/m3
Astronomical
Sun Transit: 12:48 AM
Sunset: 8:00 PM
Daylight: 14 hrs 22 mins
Moon Transit: 12:20 AM
Moonset: 5:11 AM
Moon Phase: Full
Moon Illumination: 99.7%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:33 PM - 5:03 PM
Minor Periods
7:57 PM - 9:27 PM4:41 AM - 6:11 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 60.5°F
Average Humidity: 79%
Wind: 10.5 mph
UV Index: 1.3
Air Quality
Nitrogen Dioxide: 53.61 μg/m3
Sulphur Dioxide: 8.27 μg/m3
Ozone: 67.15 μg/m3
Astronomical
Sun Transit: 12:48 AM
Sunset: 8:01 PM
Daylight: 14 hrs 24 mins
Moon Transit: 1:07 AM
Moonset: 5:42 AM
Moon Phase: Full
Moon Illumination: 97.2%
Best Times for Fishing or Hunting
Major Periods
12:37 AM - 3:07 AM3:21 PM - 5:51 PM
Minor Periods
9:00 PM - 10:30 PM5:12 AM - 6:42 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 59.7°F
Average Humidity: 95%
Wind: 14.1 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 12:48 AM
Sunset: 8:02 PM
Daylight: 14 hrs 26 mins
Moon Transit: 1:56 AM
Moonset: 6:20 AM
Moon Phase: Full
Moon Illumination: 92.3%
Best Times for Fishing or Hunting
Major Periods
1:26 AM - 3:56 AM4:12 PM - 6:42 PM
Minor Periods
10:01 PM - 11:31 PM5:50 AM - 7:20 AM
Action Rating: 4 out of 5