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

Current Water Temperature

70.7°F

Measurement Time: Monday, September 14, 2026, 11:54 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

65°F
Sunny
Sunny
52%
N 10 mph
46°F

Weather Forecast

Sunny
This Afternoon
67°F - Sunny
Mostly Clear
Tonight
51°F - Mostly Clear
Partly Sunny
Tuesday
71°F - Partly Sunny
Slight Chance Rain Showers
Tuesday Night
64°F - Slight Chance Rain Showers
Slight Chance Rain Showers then Partly Sunny
Wednesday
75°F - Slight Chance Rain Showers then Partly Sunny
Mostly Cloudy then Slight Chance Rain Showers
Wednesday Night
60°F - Mostly Cloudy then Slight Chance Rain Showers
Rain Showers Likely
Thursday
72°F - Rain Showers Likely
Chance Rain Showers
Thursday Night
55°F - Chance Rain Showers
Mostly Sunny
Friday
73°F - Mostly Sunny
Partly Cloudy then Slight Chance Rain Showers
Friday Night
53°F - Partly Cloudy then Slight Chance Rain Showers
Chance Rain Showers
Saturday
69°F - Chance Rain Showers
Chance Rain Showers
Saturday Night
52°F - Chance Rain Showers
Chance Rain Showers
Sunday
68°F - Chance Rain Showers
Chance Rain Showers
Sunday Night
50°F - Chance Rain Showers

Astronomical

Sunrise: 6:42 AM
Sun Transit: 1:00 PM
Sunset: 7:16 PM
Daylight: 12 hrs 34 mins
Moonrise: 10:43 AM
Moon Transit: 3:39 PM
Moonset: 8:28 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

4:42 AM - 7:12 AM
3:09 PM - 5:39 PM

Minor Periods

7:58 PM - 9:28 PM
10:13 AM - 11:43 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: 6:42 AM
Sun Transit: 1:00 PM
Sunset: 7:16 PM
Daylight: 12 hrs 34 mins
Moonrise: 10:43 AM
Moon Transit: 3:39 PM
Moonset: 8:28 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

4:42 AM - 7:12 AM
3:09 PM - 5:39 PM

Minor Periods

7:58 PM - 9:28 PM
10:13 AM - 11:43 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: 6:42 AM
Sun Transit: 1:00 PM
Sunset: 7:16 PM
Daylight: 12 hrs 34 mins
Moonrise: 10:43 AM
Moon Transit: 3:39 PM
Moonset: 8:28 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

4:42 AM - 7:12 AM
3:09 PM - 5:39 PM

Minor Periods

7:58 PM - 9:28 PM
10:13 AM - 11:43 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: 6:43 AM
Sun Transit: 12:58 AM
Sunset: 7:14 PM
Daylight: 12 hrs 31 mins
Moonrise: 11:52 AM
Moon Transit: 4:27 PM
Moonset: 8:56 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

5:30 AM - 8:00 AM
3:57 PM - 6:27 PM

Minor Periods

8:26 PM - 9:56 PM
11:22 AM - 12:52 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: 6:43 AM
Sun Transit: 12:58 AM
Sunset: 7:14 PM
Daylight: 12 hrs 31 mins
Moonrise: 11:52 AM
Moon Transit: 4:27 PM
Moonset: 8:56 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

5:30 AM - 8:00 AM
3:57 PM - 6:27 PM

Minor Periods

8:26 PM - 9:56 PM
11:22 AM - 12:52 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: 6:44 AM
Sun Transit: 12:58 AM
Sunset: 7:12 PM
Daylight: 12 hrs 28 mins
Moonrise: 12:59 AM
Moon Transit: 5:16 PM
Moonset: 9:29 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

6:18 AM - 8:48 AM
4:46 PM - 7:16 PM

Minor Periods

8:59 PM - 10:29 PM
12:29 AM - 1:59 PM

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: 6:44 AM
Sun Transit: 12:58 AM
Sunset: 7:12 PM
Daylight: 12 hrs 28 mins
Moonrise: 12:59 AM
Moon Transit: 5:16 PM
Moonset: 9:29 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

6:18 AM - 8:48 AM
4:46 PM - 7:16 PM

Minor Periods

8:59 PM - 10:29 PM
12:29 AM - 1:59 PM

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: 6:45 AM
Sun Transit: 12:58 AM
Sunset: 7:10 PM
Daylight: 12 hrs 25 mins
Moonrise: 2:02 PM
Moon Transit: 6:07 PM
Moonset: 10:11 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

7:08 AM - 9:38 AM
5:37 PM - 8:07 PM

Minor Periods

9:41 PM - 11:11 PM
1:32 PM - 3:02 PM

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: 6:45 AM
Sun Transit: 12:58 AM
Sunset: 7:10 PM
Daylight: 12 hrs 25 mins
Moonrise: 2:02 PM
Moon Transit: 6:07 PM
Moonset: 10:11 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

7:08 AM - 9:38 AM
5:37 PM - 8:07 PM

Minor Periods

9:41 PM - 11:11 PM
1:32 PM - 3:02 PM

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: 6:47 AM
Sun Transit: 12:57 AM
Sunset: 7:08 PM
Daylight: 12 hrs 22 mins
Moonrise: 2:57 PM
Moon Transit: 6:58 PM
Moonset: 11:01 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

7:59 AM - 10:29 AM
6:28 PM - 8:58 PM

Minor Periods

12:00 AM - 12:00 AM
2:27 PM - 3:57 PM

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: 6:47 AM
Sun Transit: 12:57 AM
Sunset: 7:08 PM
Daylight: 12 hrs 22 mins
Moonrise: 2:57 PM
Moon Transit: 6:58 PM
Moonset: 11:01 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

7:59 AM - 10:29 AM
6:28 PM - 8:58 PM

Minor Periods

12:00 AM - 12:00 AM
2:27 PM - 3:57 PM

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: 6:48 AM
Sun Transit: 12:57 AM
Sunset: 7:07 PM
Daylight: 12 hrs 19 mins
Moonrise: 3:44 PM
Moon Transit: 7:50 PM
Moonset: 12:01 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

8:51 AM - 11:21 AM
7:20 PM - 9:50 PM

Minor Periods

3:14 PM - 4:44 PM
12:00 AM - 12:00 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: 6:48 AM
Sun Transit: 12:57 AM
Sunset: 7:07 PM
Daylight: 12 hrs 19 mins
Moonrise: 3:44 PM
Moon Transit: 7:50 PM
Moonset: 12:01 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

8:51 AM - 11:21 AM
7:20 PM - 9:50 PM

Minor Periods

3:14 PM - 4:44 PM
12:00 AM - 12:00 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: 6:49 AM
Sun Transit: 12:57 AM
Sunset: 7:05 PM
Daylight: 12 hrs 16 mins
Moonrise: 4:23 PM
Moon Transit: 8:40 PM
Moonset: 12:59 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

9:41 AM - 12:11 AM
8:10 PM - 10:40 PM

Minor Periods

3:53 PM - 5:23 PM
12:00 AM - 12:00 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: 6:49 AM
Sun Transit: 12:57 AM
Sunset: 7:05 PM
Daylight: 12 hrs 16 mins
Moonrise: 4:23 PM
Moon Transit: 8:40 PM
Moonset: 12:59 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

9:41 AM - 12:11 AM
8:10 PM - 10:40 PM

Minor Periods

3:53 PM - 5:23 PM
12:00 AM - 12:00 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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