Water Temperature of the St. Lawrence River in Wellesley Island, NY

Current Water Temperature

72.3°F

Measurement Time: Monday, September 7, 2026, 11:36 AM EDT

Temperature Locations

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Local Points of Interest

Coast Guard Station Alexandria Bay; Keewaydin State Park

St. Lawrence River

Station Name: Alexandria Bay
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 240 feet

Sensor Depth: -2 feet

Nearest Address:
45898 Hopewell Hall Rd
Wellesley Island, NY 13640
Jefferson County

GPS Coordinates: 44.331110, -75.934528

Nearby Water Temperatures

St. Lawrence River, Ogdensburg, NY (33.6 mi)
Independence River, Donnattsburg, NY (50.2 mi)
Oswego River, Oswego, NY (67.1 mi)
Buck Creek, Inlet, NY (72.6 mi)
Lake Ontario, Rochester, NY (87.9 mi)
Skaneateles Lake, Skaneateles, NY (98.9 mi)
Irondequoit Creek, Penfield, NY (113.6 mi)
Allen Creek, Brighton, NY (115 mi)
Northrup Creek, North Greece, NY (116.9 mi)
Genesee River, Rochester, NY (117.5 mi)
Erie Canal, Rochester, NY (119.5 mi)
Sandy Creek, North Hamlin, NY (120.2 mi)
Mohawk River, Fonda, NY (123.3 mi)
Lake Champlain, Port Henry, NY (124.4 mi)
Schoharie Creek, Fort Hunter, NY (126.9 mi)

Weather for Wellesley Island, New York

Current Weather

70°F
Sunny
Sunny
62%
W 3 mph
56°F

Weather Forecast

Sunny
Labor Day
76°F - Sunny
Partly Cloudy
Tonight
60°F - Partly Cloudy
Partly Sunny
Tuesday
74°F - Partly Sunny
Cloudy
Tuesday Night
63°F - Cloudy
Rain Showers
Wednesday
75°F - Rain Showers
Showers And Thunderstorms
Wednesday Night
66°F - Showers And Thunderstorms
Slight Chance Rain Showers then Partly Sunny
Thursday
73°F - Slight Chance Rain Showers then Partly Sunny
Partly Cloudy
Thursday Night
52°F - Partly Cloudy
Sunny
Friday
70°F - Sunny
Mostly Clear
Friday Night
53°F - Mostly Clear
Mostly Sunny
Saturday
76°F - Mostly Sunny
Slight Chance Rain Showers
Saturday Night
60°F - Slight Chance Rain Showers
Slight Chance Rain Showers
Sunday
76°F - Slight Chance Rain Showers
Slight Chance Rain Showers
Sunday Night
57°F - Slight Chance Rain Showers

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:01 PM
Sunset: 7:29 PM
Daylight: 12 hrs 55 mins
Moonrise: 1:57 AM
Moon Transit: 10:01 AM
Moonset: 5:50 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:20 PM - 6:50 PM
1:27 AM - 2:57 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:34 AM
Sun Transit: 1:01 PM
Sunset: 7:29 PM
Daylight: 12 hrs 55 mins
Moonrise: 1:57 AM
Moon Transit: 10:01 AM
Moonset: 5:50 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:20 PM - 6:50 PM
1:27 AM - 2:57 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:34 AM
Sun Transit: 1:01 PM
Sunset: 7:29 PM
Daylight: 12 hrs 55 mins
Moonrise: 1:57 AM
Moon Transit: 10:01 AM
Moonset: 5:50 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:20 PM - 6:50 PM
1:27 AM - 2:57 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:35 AM
Sun Transit: 1:01 PM
Sunset: 7:27 PM
Daylight: 12 hrs 52 mins
Moonrise: 3:18 AM
Moon Transit: 10:57 AM
Moonset: 6:20 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:27 AM - 12:57 AM

Minor Periods

5:50 PM - 7:20 PM
2:48 AM - 4:18 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:35 AM
Sun Transit: 1:01 PM
Sunset: 7:27 PM
Daylight: 12 hrs 52 mins
Moonrise: 3:18 AM
Moon Transit: 10:57 AM
Moonset: 6:20 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:27 AM - 12:57 AM

Minor Periods

5:50 PM - 7:20 PM
2:48 AM - 4:18 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:36 AM
Sun Transit: 1:01 PM
Sunset: 7:25 PM
Daylight: 12 hrs 49 mins
Moonrise: 4:38 AM
Moon Transit: 11:49 AM
Moonset: 6:45 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 AM
11:19 AM - 1:49 PM

Minor Periods

6:15 PM - 7:45 PM
4:08 AM - 5:38 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:36 AM
Sun Transit: 1:01 PM
Sunset: 7:25 PM
Daylight: 12 hrs 49 mins
Moonrise: 4:38 AM
Moon Transit: 11:49 AM
Moonset: 6:45 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 AM
11:19 AM - 1:49 PM

Minor Periods

6:15 PM - 7:45 PM
4:08 AM - 5:38 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:37 AM
Sun Transit: 1:00 PM
Sunset: 7:23 PM
Daylight: 12 hrs 46 mins
Moonrise: 5:55 AM
Moon Transit: 12:37 AM
Moonset: 7:05 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:39 AM - 4:09 AM
12:07 AM - 2:37 PM

Minor Periods

6:35 PM - 8:05 PM
5:25 AM - 6:55 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:37 AM
Sun Transit: 1:00 PM
Sunset: 7:23 PM
Daylight: 12 hrs 46 mins
Moonrise: 5:55 AM
Moon Transit: 12:37 AM
Moonset: 7:05 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:39 AM - 4:09 AM
12:07 AM - 2:37 PM

Minor Periods

6:35 PM - 8:05 PM
5:25 AM - 6:55 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:38 AM
Sun Transit: 1:00 PM
Sunset: 7:21 PM
Daylight: 12 hrs 43 mins
Moonrise: 7:09 AM
Moon Transit: 1:23 PM
Moonset: 7:25 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

2:26 AM - 4:56 AM
12:53 AM - 3:23 PM

Minor Periods

6:55 PM - 8:25 PM
6:39 AM - 8:09 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:38 AM
Sun Transit: 1:00 PM
Sunset: 7:21 PM
Daylight: 12 hrs 43 mins
Moonrise: 7:09 AM
Moon Transit: 1:23 PM
Moonset: 7:25 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

2:26 AM - 4:56 AM
12:53 AM - 3:23 PM

Minor Periods

6:55 PM - 8:25 PM
6:39 AM - 8:09 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:40 AM
Sun Transit: 1:00 PM
Sunset: 7:19 PM
Daylight: 12 hrs 40 mins
Moonrise: 8:22 AM
Moon Transit: 2:08 PM
Moonset: 7:44 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

3:12 AM - 5:42 AM
1:38 PM - 4:08 PM

Minor Periods

7:14 PM - 8:44 PM
7:52 AM - 9:22 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:40 AM
Sun Transit: 1:00 PM
Sunset: 7:19 PM
Daylight: 12 hrs 40 mins
Moonrise: 8:22 AM
Moon Transit: 2:08 PM
Moonset: 7:44 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

3:12 AM - 5:42 AM
1:38 PM - 4:08 PM

Minor Periods

7:14 PM - 8:44 PM
7:52 AM - 9:22 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:41 AM
Sun Transit: 1:00 PM
Sunset: 7:18 PM
Daylight: 12 hrs 37 mins
Moonrise: 9:32 AM
Moon Transit: 2:53 PM
Moonset: 8:05 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

3:57 AM - 6:27 AM
2:23 PM - 4:53 PM

Minor Periods

7:35 PM - 9:05 PM
9:02 AM - 10:32 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:41 AM
Sun Transit: 1:00 PM
Sunset: 7:18 PM
Daylight: 12 hrs 37 mins
Moonrise: 9:32 AM
Moon Transit: 2:53 PM
Moonset: 8:05 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

3:57 AM - 6:27 AM
2:23 PM - 4:53 PM

Minor Periods

7:35 PM - 9:05 PM
9:02 AM - 10:32 AM

Action Rating: 5 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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