Water Temperature of the Connecticut River in Old Lyme, CT

Current Water Temperature

34.7°F

Measurement Time: Wednesday, December 31, 2025, 2:45 AM EST

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

°F
Sunny
Sunny
46%
°F
°F
mph
mph
°F
millibars
°F
%
0 in
0%
mi
0.1

Five Day Weather Forecast

Sunny
Wed
H: 33°F
L: 23°F
Moderate or heavy snow showers
Thu
H: 29°F
L: 22°F
Partly Cloudy
Fri
H: 28°F
L: 18°F
Sunny
Sat
H: 30°F
L: 22°F
Partly Cloudy
Sun
H: 29°F
L: 22°F

Astronomical

Sunrise: 7:15 AM
Sun Transit: 11:52 AM
Sunset: 4:30 PM
Daylight: 9 hrs 15 mins
Moonrise: 1:29 PM
Moon Transit: 9:28 PM
Moonset: 4:19 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.5%

Best Times for Fishing or Hunting

Major Periods

10:54 AM - 1:24 PM
8:58 PM - 11:28 PM

Minor Periods

12:59 AM - 2:29 PM
3:49 AM - 5:19 AM

Action Rating: 2 out of 5

Wednesday, December 31, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 28.1°F
Average Humidity: 54%
Chance of Rain: 0%
Wind: 21.5 mph
UV Index: 0.2

Astronomical

Sunrise: 7:15 AM
Sun Transit: 11:52 AM
Sunset: 4:30 PM
Daylight: 9 hrs 15 mins
Moonrise: 1:29 PM
Moon Transit: 9:28 PM
Moonset: 4:19 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.5%

Best Times for Fishing or Hunting

Major Periods

10:54 AM - 1:24 PM
8:58 PM - 11:28 PM

Minor Periods

12:59 AM - 2:29 PM
3:49 AM - 5:19 AM

Action Rating: 2 out of 5

Thursday, January 1, 2026

Weather Forecast

Conditions: Moderate or heavy snow showers
Average Temperature: 26.4°F
Average Humidity: 57%
Chance of Rain: 72%
Wind: 21.9 mph
UV Index: 0.2

Astronomical

Sunrise: 7:15 AM
Sun Transit: 11:53 AM
Sunset: 4:31 PM
Daylight: 9 hrs 16 mins
Moonrise: 2:23 PM
Moon Transit: 10:35 PM
Moonset: 5:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

11:59 AM - 2:29 PM
12:00 AM - 12:00 AM

Minor Periods

1:53 PM - 3:23 PM
5:07 AM - 6:37 AM

Action Rating: 2 out of 5

Friday, January 2, 2026

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 23.7°F
Average Humidity: 62%
Chance of Rain: 0%
Wind: 15 mph
UV Index: 0.2

Astronomical

Sunrise: 7:15 AM
Sun Transit: 11:53 AM
Sunset: 4:32 PM
Daylight: 9 hrs 17 mins
Moonrise: 3:29 PM
Moon Transit: 11:41 PM
Moonset: 6:49 AM
Moon Phase: Full
Moon Illumination: 99.2%

Best Times for Fishing or Hunting

Major Periods

1:06 PM - 3:36 PM
12:00 AM - 12:00 AM

Minor Periods

2:59 PM - 4:29 PM
6:19 AM - 7:49 AM

Action Rating: 4 out of 5

Saturday, January 3, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 26°F
Average Humidity: 63%
Chance of Rain: 0%
Wind: 13.4 mph
UV Index: 0.3

Astronomical

Sunrise: 7:15 AM
Sun Transit: 11:54 AM
Sunset: 4:33 PM
Daylight: 9 hrs 18 mins
Moonrise: 4:46 PM
Moon Transit: 12:00 AM
Moonset: 7:47 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:11 PM - 4:41 PM

Minor Periods

4:16 PM - 5:46 PM
7:17 AM - 8:47 AM

Action Rating: 6 out of 5

Sunday, January 4, 2026

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 24.2°F
Average Humidity: 61%
Chance of Rain: 0%
Wind: 10.5 mph
UV Index: 0

Astronomical

Sunrise: 7:15 AM
Sun Transit: 11:54 AM
Sunset: 4:34 PM
Daylight: 9 hrs 19 mins
Moonrise: 6:05 PM
Moon Transit: 12:45 AM
Moonset: 8:33 AM
Moon Phase: Full
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

12:15 AM - 2:45 AM
3:11 PM - 5:41 PM

Minor Periods

5:35 PM - 7:05 PM
8:03 AM - 9:33 AM

Action Rating: 3 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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