Water Temperature of the Connecticut River in Old Lyme, CT

Current Water Temperature

65.3°F

Measurement Time: Saturday, October 3, 2026, 2:45 AM EDT

Temperature Locations

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Local Points of Interest

Ferry Landing State Park

Connecticut River

Station Name: CONNECTICUT RIVER AT OLD LYME, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 20 feet

Nearest Address:
336 Ferry Rd
Old Lyme, CT 06371
New London County

GPS Coordinates: 41.3125983, -72.3459166

Nearby Water Temperatures

East Branch Eightmile River, Lyme, CT (8 mi)
Eightmile River, East Haddam, CT (8.9 mi)
Orient Harbor, Orient, NY (12.3 mi)
Thames River, New London, CT (13.6 mi)
Thames River, Groton, CT (13.9 mi)
Mystic River, Noank, CT (18.8 mi)
Connecticut River, Middletown, CT (19.1 mi)
Mystic Harbor, Mystic, CT (19.7 mi)
Mystic River, Mystic, CT (19.9 mi)
Mystic River, Old Mystic, CT (20.4 mi)
Yantic River, Norwich, CT (20.6 mi)
Pawcatuck River, Westerly, RI (27 mi)
Fort Pond Bay, Montauk, NY (27.2 mi)
Quinnipiac River, Wallingford, CT (27.4 mi)
New Haven Harbor, New Haven, CT (29.3 mi)

Weather for Old Lyme, Connecticut

Current Weather

60°F
Mostly Sunny
Mostly Sunny
75%
N 8 mph
52°F

Weather Forecast

Sunny
Today
71°F - Sunny
Mostly Clear
Tonight
51°F - Mostly Clear
Mostly Sunny then Chance Rain Showers
Sunday
64°F - Mostly Sunny then Chance Rain Showers
Chance Rain Showers
Sunday Night
53°F - Chance Rain Showers
Slight Chance Rain Showers then Mostly Sunny
Monday
70°F - Slight Chance Rain Showers then Mostly Sunny
Mostly Clear
Monday Night
45°F - Mostly Clear
Sunny
Tuesday
61°F - Sunny
Clear
Tuesday Night
43°F - Clear
Sunny
Wednesday
62°F - Sunny
Mostly Clear
Wednesday Night
50°F - Mostly Clear
Sunny
Thursday
67°F - Sunny
Mostly Clear
Thursday Night
52°F - Mostly Clear
Sunny
Friday
68°F - Sunny
Mostly Clear
Friday Night
50°F - Mostly Clear

Astronomical

Sunrise: 6:48 AM
Sun Transit: 12:38 AM
Sunset: 6:28 PM
Daylight: 11 hrs 40 mins
Moonrise: 11:43 PM
Moon Transit: 6:39 AM
Moonset: 2:43 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:09 AM - 8:39 AM
9:07 PM - 11:37 PM

Minor Periods

12:00 AM - 12:00 AM
2:13 PM - 3:43 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: 12:38 AM
Sunset: 6:28 PM
Daylight: 11 hrs 40 mins
Moonrise: 11:43 PM
Moon Transit: 6:39 AM
Moonset: 2:43 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:09 AM - 8:39 AM
9:07 PM - 11:37 PM

Minor Periods

12:00 AM - 12:00 AM
2:13 PM - 3:43 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: 12:38 AM
Sunset: 6:28 PM
Daylight: 11 hrs 40 mins
Moonrise: 11:43 PM
Moon Transit: 6:39 AM
Moonset: 2:43 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:09 AM - 8:39 AM
9:07 PM - 11:37 PM

Minor Periods

12:00 AM - 12:00 AM
2:13 PM - 3:43 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: 6:50 AM
Sun Transit: 12:38 AM
Sunset: 6:26 PM
Daylight: 11 hrs 37 mins
Moonrise: 12:43 AM
Moon Transit: 7:39 AM
Moonset: 3:25 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:09 AM - 9:39 AM
12:00 AM - 12:00 AM

Minor Periods

2:55 PM - 4:25 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: 6:50 AM
Sun Transit: 12:38 AM
Sunset: 6:26 PM
Daylight: 11 hrs 37 mins
Moonrise: 12:43 AM
Moon Transit: 7:39 AM
Moonset: 3:25 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:09 AM - 9:39 AM
12:00 AM - 12:00 AM

Minor Periods

2:55 PM - 4:25 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: 6:51 AM
Sun Transit: 12:37 AM
Sunset: 6:25 PM
Daylight: 11 hrs 34 mins
Moonrise: 12:59 AM
Moon Transit: 8:35 AM
Moonset: 4:00 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:05 AM - 10:35 AM
12:00 AM - 12:00 AM

Minor Periods

3:30 PM - 5:00 PM
12:29 AM - 1:59 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: 6:51 AM
Sun Transit: 12:37 AM
Sunset: 6:25 PM
Daylight: 11 hrs 34 mins
Moonrise: 12:59 AM
Moon Transit: 8:35 AM
Moonset: 4:00 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:05 AM - 10:35 AM
12:00 AM - 12:00 AM

Minor Periods

3:30 PM - 5:00 PM
12:29 AM - 1:59 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: 6:52 AM
Sun Transit: 12:37 AM
Sunset: 6:23 PM
Daylight: 11 hrs 31 mins
Moonrise: 2:14 AM
Moon Transit: 9:27 AM
Moonset: 4:28 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

8:57 AM - 11:27 AM
12:00 AM - 12:00 AM

Minor Periods

3:58 PM - 5:28 PM
1:44 AM - 3:14 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: 6:52 AM
Sun Transit: 12:37 AM
Sunset: 6:23 PM
Daylight: 11 hrs 31 mins
Moonrise: 2:14 AM
Moon Transit: 9:27 AM
Moonset: 4:28 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

8:57 AM - 11:27 AM
12:00 AM - 12:00 AM

Minor Periods

3:58 PM - 5:28 PM
1:44 AM - 3:14 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: 6:53 AM
Sun Transit: 12:37 AM
Sunset: 6:21 PM
Daylight: 11 hrs 29 mins
Moonrise: 3:27 AM
Moon Transit: 10:16 AM
Moonset: 4:52 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:46 AM - 12:16 AM

Minor Periods

4:22 PM - 5:52 PM
2:57 AM - 4:27 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: 6:53 AM
Sun Transit: 12:37 AM
Sunset: 6:21 PM
Daylight: 11 hrs 29 mins
Moonrise: 3:27 AM
Moon Transit: 10:16 AM
Moonset: 4:52 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:46 AM - 12:16 AM

Minor Periods

4:22 PM - 5:52 PM
2:57 AM - 4:27 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: 6:54 AM
Sun Transit: 12:36 AM
Sunset: 6:20 PM
Daylight: 11 hrs 26 mins
Moonrise: 4:38 AM
Moon Transit: 11:02 AM
Moonset: 5:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:35 AM - 3:05 AM
10:32 AM - 1:02 PM

Minor Periods

4:44 PM - 6:14 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: 6:54 AM
Sun Transit: 12:36 AM
Sunset: 6:20 PM
Daylight: 11 hrs 26 mins
Moonrise: 4:38 AM
Moon Transit: 11:02 AM
Moonset: 5:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:35 AM - 3:05 AM
10:32 AM - 1:02 PM

Minor Periods

4:44 PM - 6:14 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: 6:55 AM
Sun Transit: 12:36 AM
Sunset: 6:18 PM
Daylight: 11 hrs 23 mins
Moonrise: 5:47 AM
Moon Transit: 11:46 AM
Moonset: 5:36 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

1:20 AM - 3:50 AM
11:16 AM - 1:46 PM

Minor Periods

5:06 PM - 6:36 PM
5:17 AM - 6:47 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: 6:55 AM
Sun Transit: 12:36 AM
Sunset: 6:18 PM
Daylight: 11 hrs 23 mins
Moonrise: 5:47 AM
Moon Transit: 11:46 AM
Moonset: 5:36 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

1:20 AM - 3:50 AM
11:16 AM - 1:46 PM

Minor Periods

5:06 PM - 6:36 PM
5:17 AM - 6:47 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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