Water Temperature of Great South Bay in West Sayville, NY

Current Water Temperature

35.8°F

Measurement Time: Thursday, February 13, 2025, 6:54 PM EST

Temperature Locations

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Local Points of Interest

Green Creek; Sayville Beach & Marina

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Great South Bay

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

54°F
Overcast
Conditions: Overcast
Humidity: 72%
Feels Like: 50.4°F
Wind: E 12.1 mph
Wind Gusts: 15 mph
Pressure: 30.03 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 1.5

Five Day Weather Forecast

Patchy rain nearby
Wed
H: 56°F
L: 52°F
Moderate rain
Thu
H: 51°F
L: 48°F
Patchy rain nearby
Fri
H: 60°F
L: 48°F
Partly Cloudy
Sat
H: 66°F
L: 51°F
Partly Cloudy
Sun
H: 64°F
L: 56°F

Air Quality

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 12:49 AM
Sunset: 8:09 PM
Daylight: 14 hrs 39 mins
Moonrise: 2:16 AM
Moon Transit: 7:54 AM
Moonset: 1:44 PM
Moon Phase: Last Quarter
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

7:24 AM - 9:54 AM
12:00 AM - 12:00 AM

Minor Periods

1:14 PM - 2:44 PM
1:46 AM - 3:16 AM

Action Rating: 2 out of 5

Wednesday, May 21, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 53.8°F
Average Humidity: 74%
Chance of Rain: 78%
Wind: 16.6 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 11.94 μg/m3
PM10: 13.72 μg/m3
Carbon Monoxide: 347.37 μg/m3
Nitrogen Dioxide: 38.14 μg/m3
Sulphur Dioxide: 4.81 μg/m3
Ozone: 44 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 12:49 AM
Sunset: 8:09 PM
Daylight: 14 hrs 39 mins
Moonrise: 2:16 AM
Moon Transit: 7:54 AM
Moonset: 1:44 PM
Moon Phase: Last Quarter
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

7:24 AM - 9:54 AM
12:00 AM - 12:00 AM

Minor Periods

1:14 PM - 2:44 PM
1:46 AM - 3:16 AM

Action Rating: 2 out of 5

Thursday, May 22, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 50.5°F
Average Humidity: 90%
Chance of Rain: 89%
Wind: 19.7 mph
UV Index: 0

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: 5:29 AM
Sun Transit: 12:49 AM
Sunset: 8:10 PM
Daylight: 14 hrs 41 mins
Moonrise: 2:40 AM
Moon Transit: 12:46 AM
Moonset: 2:58 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

12:16 AM - 2:46 PM
12:16 AM - 2:46 PM

Minor Periods

2:28 PM - 3:58 PM
2:10 AM - 3:40 AM

Action Rating: 2 out of 5

Friday, May 23, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 52.7°F
Average Humidity: 73%
Chance of Rain: 85%
Wind: 15.4 mph
UV Index: 3

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: 5:28 AM
Sun Transit: 12:49 AM
Sunset: 8:11 PM
Daylight: 14 hrs 42 mins
Moonrise: 3:03 AM
Moon Transit: 9:31 AM
Moonset: 4:13 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:01 AM - 11:31 AM

Minor Periods

3:43 PM - 5:13 PM
2:33 AM - 4:03 AM

Action Rating: 2 out of 5

Saturday, May 24, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 58.8°F
Average Humidity: 56%
Chance of Rain: 0%
Wind: 10.5 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: 5:27 AM
Sun Transit: 12:49 AM
Sunset: 8:11 PM
Daylight: 14 hrs 44 mins
Moonrise: 3:28 AM
Moon Transit: 10:22 AM
Moonset: 5:31 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:52 AM - 12:22 AM

Minor Periods

5:01 PM - 6:31 PM
2:58 AM - 4:28 AM

Action Rating: 2 out of 5

Sunday, May 25, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 60.3°F
Average Humidity: 59%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 5

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: 5:27 AM
Sun Transit: 12:49 AM
Sunset: 8:12 PM
Daylight: 14 hrs 46 mins
Moonrise: 3:58 AM
Moon Transit: 11:18 AM
Moonset: 6:53 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:40 AM - 3:10 AM
10:48 AM - 1:18 PM

Minor Periods

6:23 PM - 7:53 PM
3:28 AM - 4:58 AM

Action Rating: 4 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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