Water Temperature of the Thames River in New London, CT
Current Water Temperature
49.3°F
Measurement Time: Wednesday, April 22, 2026, 6:06 AM EDT
Today's Tides
High: April 22, 1:45 AM, 3.1 ft
Low: April 22, 8:39 AM, 0.0 ft
High: April 22, 2:19 PM, 2.4 ft
Low: April 22, 8:47 PM, 0.4 ft
Temperature Locations
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Local Points of Interest
Riverside Park; Groton, CTThames River
Station Name: New London
Data Source: NOAA Tides and Currents
Elevation Above Sea Level: 26 feet
Sensor Depth: -3 feet
Nearest Address:
United States Coast Guard Academy
New London, CT 06320
New London County
GPS Coordinates: 41.3717, -72.095525
Nearby Water Temperatures
Thames River, Groton, CT (1.7 mi)Mystic River, Noank, CT (6.5 mi)
Mystic River, Mystic, CT (6.7 mi)
Mystic Harbor, Mystic, CT (6.8 mi)
Mystic River, Old Mystic, CT (6.9 mi)
East Branch Eightmile River, Lyme, CT (13 mi)
Yantic River, Norwich, CT (13 mi)
Eightmile River, East Haddam, CT (13.2 mi)
Connecticut River, Old Lyme, CT (13.6 mi)
Pawcatuck River, Westerly, RI (13.6 mi)
Orient Harbor, Orient, NY (19.6 mi)
Fort Pond Bay, Montauk, NY (23.4 mi)
Connecticut River, Middletown, CT (26.4 mi)
Natchaug River, Chaplin, CT (30.7 mi)
Hemlock Brook, Foster, RI (35.5 mi)
Weather for New London, Connecticut
Current Weather
43°F

Overcast
37°F
39.4°F
70%
S 10.7 mph
14.3 mph
35.3°F
32.8°F
0 in
100%
9 mi
1023 mbar
0
Five Day Weather Forecast

Wed
H: 46°F
L: 37°F

Thu
H: 58°F
L: 40°F

Fri
H: 50°F
L: 42°F

Sat
H: 50°F
L: 39°F

Sun
H: 54°F
L: 40°F
Air Quality
AQI:
1 - Good
PM2.5:
10.55 μg/m3
PM10:
15.65 μg/m3
Carbon Monoxide: 159.85 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 108 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 108 μg/m3
Astronomical
Sunrise: 5:58 AM
Sun Transit: 12:46 AM
Sunset: 7:36 PM
Daylight: 13 hrs 38 mins
Sun Transit: 12:46 AM
Sunset: 7:36 PM
Daylight: 13 hrs 38 mins
Moonrise: 9:56 AM
Moon Transit: 6:01 PM
Moonset: 1:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%
Moon Transit: 6:01 PM
Moonset: 1:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%
Best Times for Fishing or Hunting
Major Periods
7:30 AM - 10:00 AM5:31 PM - 8:01 PM
Minor Periods
9:26 AM - 10:56 AM12:39 AM - 2:09 AM
Action Rating: 3 out of 5
Wednesday, April 22, 2026
Weather Forecast
Patchy rain nearby
46.2°F
36.9°F
42.1°F
84%
0.02 in
66%
0%
14.5 mph
0.8
Air Quality
AQI:
1 - Good
PM2.5:
10.14 μg/m3
PM10:
14.97 μg/m3
Carbon Monoxide: 163.93 μg/m3
Nitrogen Dioxide: 2.44 μg/m3
Sulphur Dioxide: 1.56 μg/m3
Ozone: 107.36 μg/m3
Nitrogen Dioxide: 2.44 μg/m3
Sulphur Dioxide: 1.56 μg/m3
Ozone: 107.36 μg/m3
Astronomical
Sunrise: 5:58 AM
Sun Transit: 12:46 AM
Sunset: 7:36 PM
Daylight: 13 hrs 38 mins
Sun Transit: 12:46 AM
Sunset: 7:36 PM
Daylight: 13 hrs 38 mins
Moonrise: 9:56 AM
Moon Transit: 6:01 PM
Moonset: 1:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%
Moon Transit: 6:01 PM
Moonset: 1:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%
Best Times for Fishing or Hunting
Major Periods
7:30 AM - 10:00 AM5:31 PM - 8:01 PM
Minor Periods
9:26 AM - 10:56 AM12:39 AM - 2:09 AM
Action Rating: 3 out of 5
Thursday, April 23, 2026
Weather Forecast
Partly Cloudy
58.1°F
40°F
48°F
73%
0 in
0%
0%
15.4 mph
5.2
Air Quality
AQI:
1 - Good
PM2.5:
10.94 μg/m3
PM10:
13.72 μg/m3
Carbon Monoxide: 175.21 μg/m3
Nitrogen Dioxide: 6.99 μg/m3
Sulphur Dioxide: 1.88 μg/m3
Ozone: 91.28 μg/m3
Nitrogen Dioxide: 6.99 μg/m3
Sulphur Dioxide: 1.88 μg/m3
Ozone: 91.28 μg/m3
Astronomical
Sunrise: 5:57 AM
Sun Transit: 12:46 AM
Sunset: 7:37 PM
Daylight: 13 hrs 41 mins
Sun Transit: 12:46 AM
Sunset: 7:37 PM
Daylight: 13 hrs 41 mins
Moonrise: 11:11 AM
Moon Transit: 7:00 PM
Moonset: 1:58 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%
Moon Transit: 7:00 PM
Moonset: 1:58 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%
Best Times for Fishing or Hunting
Major Periods
8:30 AM - 11:00 AM6:30 PM - 9:00 PM
Minor Periods
10:41 AM - 12:11 AM1:28 AM - 2:58 AM
Action Rating: 2 out of 5
Friday, April 24, 2026
Weather Forecast
Patchy rain nearby
50.1°F
42.2°F
44.7°F
73%
0.12 in
89%
0%
13.6 mph
5.8
Air Quality
AQI:
1 - Good
PM2.5:
8.43 μg/m3
PM10:
9.55 μg/m3
Carbon Monoxide: 185.73 μg/m3
Nitrogen Dioxide: 14.99 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 63.68 μg/m3
Nitrogen Dioxide: 14.99 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 63.68 μg/m3
Astronomical
Sunrise: 5:55 AM
Sun Transit: 12:46 AM
Sunset: 7:38 PM
Daylight: 13 hrs 43 mins
Sun Transit: 12:46 AM
Sunset: 7:38 PM
Daylight: 13 hrs 43 mins
Moonrise: 12:26 AM
Moon Transit: 7:52 PM
Moonset: 2:36 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%
Moon Transit: 7:52 PM
Moonset: 2:36 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%
Best Times for Fishing or Hunting
Major Periods
9:25 AM - 11:55 AM7:22 PM - 9:52 PM
Minor Periods
11:56 AM - 1:26 PM2:06 AM - 3:36 AM
Action Rating: 3 out of 5
Saturday, April 25, 2026
Weather Forecast
Patchy rain nearby
50.3°F
39.2°F
44.6°F
72%
0.01 in
87%
0%
8.9 mph
3.6
Air Quality
AQI:
1 - Good
PM2.5:
7.76 μg/m3
PM10:
10.2 μg/m3
Carbon Monoxide: 203.35 μg/m3
Nitrogen Dioxide: 5.99 μg/m3
Sulphur Dioxide: 1.82 μg/m3
Ozone: 90.68 μg/m3
Nitrogen Dioxide: 5.99 μg/m3
Sulphur Dioxide: 1.82 μg/m3
Ozone: 90.68 μg/m3
Astronomical
Sunrise: 5:54 AM
Sun Transit: 12:46 AM
Sunset: 7:39 PM
Daylight: 13 hrs 46 mins
Sun Transit: 12:46 AM
Sunset: 7:39 PM
Daylight: 13 hrs 46 mins
Moonrise: 1:38 PM
Moon Transit: 8:40 PM
Moonset: 3:06 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%
Moon Transit: 8:40 PM
Moonset: 3:06 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%
Best Times for Fishing or Hunting
Major Periods
10:15 AM - 12:45 AM8:10 PM - 10:40 PM
Minor Periods
1:08 PM - 2:38 PM2:36 AM - 4:06 AM
Action Rating: 2 out of 5
Sunday, April 26, 2026
Weather Forecast
Patchy rain nearby
54°F
39.8°F
45.2°F
80%
0.01 in
89%
0%
8.9 mph
0.2
Air Quality
AQI:
1 - Good
PM2.5:
5.17 μg/m3
PM10:
7.27 μg/m3
Carbon Monoxide: 154.89 μg/m3
Nitrogen Dioxide: 2.93 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 80.46 μg/m3
Nitrogen Dioxide: 2.93 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 80.46 μg/m3
Astronomical
Sunrise: 5:52 AM
Sun Transit: 12:46 AM
Sunset: 7:41 PM
Daylight: 13 hrs 48 mins
Sun Transit: 12:46 AM
Sunset: 7:41 PM
Daylight: 13 hrs 48 mins
Moonrise: 2:47 PM
Moon Transit: 9:25 PM
Moonset: 3:30 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%
Moon Transit: 9:25 PM
Moonset: 3:30 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%
Best Times for Fishing or Hunting
Major Periods
11:01 AM - 1:31 PM8:55 PM - 11:25 PM
Minor Periods
2:17 PM - 3:47 PM3:00 AM - 4:30 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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