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

Peconic River, Riverhead, NY (27.3 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)
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)
Rooster River, Bridgeport, CT (32.4 mi)
Atlantic Ocean, Islip, NY (32.7 mi)
East Creek, Sands Point, NY (33.9 mi)
Long Island Sound, Kings Point, NY (35.8 mi)

Weather for West Sayville, New York

Current Weather

63°F
Clear
Conditions: Clear
Humidity: 65%
Feels Like: 63°F
Wind: WSW 14.5 mph
Wind Gusts: 30.5 mph
Pressure: 29.93 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Partly Cloudy
Sat
H: 70°F
L: 49°F
Sunny
Sun
H: 66°F
L: 54°F
Cloudy
Mon
H: 53°F
L: 48°F
Moderate rain
Tue
H: 65°F
L: 49°F
Sunny
Wed
H: 65°F
L: 49°F

Air Quality

AQI: 2 - Moderate
PM2.5: 27.01 μg/m3
PM10: 28.49 μg/m3
Carbon Monoxide: 442.15 μg/m3
Nitrogen Dioxide: 67.71 μg/m3
Sulphur Dioxide: 13.88 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 12:51 AM
Sunset: 7:36 PM
Daylight: 13 hrs 29 mins
Moonrise: 1:29 AM
Moon Transit: 5:46 AM
Moonset: 10:07 AM
Moon Phase: Last Quarter
Moon Illumination: 49.0%

Best Times for Fishing or Hunting

Major Periods

5:16 AM - 7:46 AM
8:04 PM - 10:34 PM

Minor Periods

9:37 AM - 11:07 AM
12:59 AM - 2:29 AM

Action Rating: 3 out of 5

Saturday, April 19, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 59.5°F
Average Humidity: 80%
Chance of Rain: 0%
Wind: 17.7 mph
UV Index: 1.6

Air Quality

AQI: 2 - Moderate
PM2.5: 17.47 μg/m3
PM10: 19.4 μg/m3
Carbon Monoxide: 366.23 μg/m3
Nitrogen Dioxide: 33.58 μg/m3
Sulphur Dioxide: 8.7 μg/m3
Ozone: 93.84 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 12:51 AM
Sunset: 7:36 PM
Daylight: 13 hrs 29 mins
Moonrise: 1:29 AM
Moon Transit: 5:46 AM
Moonset: 10:07 AM
Moon Phase: Last Quarter
Moon Illumination: 49.0%

Best Times for Fishing or Hunting

Major Periods

5:16 AM - 7:46 AM
8:04 PM - 10:34 PM

Minor Periods

9:37 AM - 11:07 AM
12:59 AM - 2:29 AM

Action Rating: 3 out of 5

Sunday, April 20, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 60°F
Average Humidity: 57%
Chance of Rain: 0%
Wind: 19 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 13.14 μg/m3
PM10: 14.04 μg/m3
Carbon Monoxide: 396.42 μg/m3
Nitrogen Dioxide: 35.59 μg/m3
Sulphur Dioxide: 6.57 μg/m3
Ozone: 78.24 μg/m3

Astronomical

Sunrise: 6:06 AM
Sun Transit: 12:51 AM
Sunset: 7:37 PM
Daylight: 13 hrs 31 mins
Moonrise: 2:14 AM
Moon Transit: 6:40 AM
Moonset: 11:12 AM
Moon Phase: Last Quarter
Moon Illumination: 37.8%

Best Times for Fishing or Hunting

Major Periods

6:10 AM - 8:40 AM
8:57 PM - 11:27 PM

Minor Periods

10:42 AM - 12:12 AM
1:44 AM - 3:14 AM

Action Rating: 3 out of 5

Monday, April 21, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 50.6°F
Average Humidity: 59%
Chance of Rain: 0%
Wind: 12.8 mph
UV Index: 1

Air Quality

AQI: 1 - Good
PM2.5: 13.47 μg/m3
PM10: 15.78 μg/m3
Carbon Monoxide: 375.99 μg/m3
Nitrogen Dioxide: 41.94 μg/m3
Sulphur Dioxide: 6.39 μg/m3
Ozone: 64.32 μg/m3

Astronomical

Sunrise: 6:04 AM
Sun Transit: 12:51 AM
Sunset: 7:38 PM
Daylight: 13 hrs 34 mins
Moonrise: 2:52 AM
Moon Transit: 7:33 AM
Moonset: 12:23 AM
Moon Phase: Last Quarter
Moon Illumination: 27.2%

Best Times for Fishing or Hunting

Major Periods

7:03 AM - 9:33 AM
12:00 AM - 12:00 AM

Minor Periods

11:53 AM - 1:23 PM
2:22 AM - 3:52 AM

Action Rating: 2 out of 5

Tuesday, April 22, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 56°F
Average Humidity: 79%
Chance of Rain: 88%
Wind: 16.8 mph
UV Index: 1.9

Air Quality

AQI: 2 - Moderate
PM2.5: 23.13 μg/m3
PM10: 28.62 μg/m3
Carbon Monoxide: 339.36 μg/m3
Nitrogen Dioxide: 44.68 μg/m3
Sulphur Dioxide: 7.35 μg/m3
Ozone: 75.88 μg/m3

Astronomical

Sunrise: 6:03 AM
Sun Transit: 12:50 AM
Sunset: 7:39 PM
Daylight: 13 hrs 36 mins
Moonrise: 3:23 AM
Moon Transit: 8:24 AM
Moonset: 1:35 PM
Moon Phase: Last Quarter
Moon Illumination: 17.8%

Best Times for Fishing or Hunting

Major Periods

7:54 AM - 10:24 AM
12:00 AM - 12:00 AM

Minor Periods

1:05 PM - 2:35 PM
2:53 AM - 4:23 AM

Action Rating: 2 out of 5

Wednesday, April 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 55.9°F
Average Humidity: 56%
Chance of Rain: 0%
Wind: 11.2 mph
UV Index: 1.8

Air Quality

AQI: 2 - Moderate
PM2.5: 20.58 μg/m3
PM10: 21.43 μg/m3
Carbon Monoxide: 450.12 μg/m3
Nitrogen Dioxide: 81.83 μg/m3
Sulphur Dioxide: 11.06 μg/m3
Ozone: 42.15 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 12:50 AM
Sunset: 7:40 PM
Daylight: 13 hrs 39 mins
Moonrise: 3:50 AM
Moon Transit: 9:14 AM
Moonset: 2:49 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.0%

Best Times for Fishing or Hunting

Major Periods

8:44 AM - 11:14 AM
12:00 AM - 12:00 AM

Minor Periods

2:19 PM - 3:49 PM
3:20 AM - 4:50 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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