Water Temperature of the Thames River in New London, CT

Current Water Temperature

51.6°F

Measurement Time: Sunday, May 24, 2026, 3:42 PM EDT

Today's Tides

 High: May 24, 4:41 AM, 2.6 ft
Low: May 24, 11:09 AM, 0.3 ft
 High: May 24, 5:18 PM, 2.9 ft
Low: May 24, 11:53 PM, 0.5 ft

Temperature Locations

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Local Points of Interest

Riverside Park; Groton, CT

Thames 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

55°F
Light rain
Light rain
50.6°F
55.1°F
96%
ENE 17.7 mph
24.9 mph
51.9°F
53.5°F
0.06 in
100%
1 mi
1026 mbar
0.4

Five Day Weather Forecast

Heavy rain
Sun
H: 56°F
L: 49°F
Moderate rain
Mon
H: 64°F
L: 55°F
Partly Cloudy
Tue
H: 67°F
L: 55°F
Partly Cloudy
Wed
H: 74°F
L: 57°F
Partly Cloudy
Thu
H: 71°F
L: 55°F

Air Quality

AQI: 1 - Good
PM2.5: 9.85 μg/m3
PM10: 15.75 μg/m3
Carbon Monoxide: 119.85 μg/m3
Nitrogen Dioxide: 2.05 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 96 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 12:45 AM
Sunset: 8:09 PM
Daylight: 14 hrs 47 mins
Moonrise: 1:46 PM
Moon Transit: 8:07 PM
Moonset: 1:57 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

9:43 AM - 12:13 AM
7:37 PM - 10:07 PM

Minor Periods

1:16 PM - 2:46 PM
1:27 AM - 2:57 AM

Action Rating: 2 out of 5

Sunday, May 24, 2026

Weather Forecast

Heavy rain
55.9°F
49.3°F
53.5°F
94%
0.79 in
89%
0%
21 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 10.53 μg/m3
PM10: 16.39 μg/m3
Carbon Monoxide: 120.01 μg/m3
Nitrogen Dioxide: 2.37 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 85 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 12:45 AM
Sunset: 8:09 PM
Daylight: 14 hrs 47 mins
Moonrise: 1:46 PM
Moon Transit: 8:07 PM
Moonset: 1:57 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

9:43 AM - 12:13 AM
7:37 PM - 10:07 PM

Minor Periods

1:16 PM - 2:46 PM
1:27 AM - 2:57 AM

Action Rating: 2 out of 5

Monday, May 25, 2026

Weather Forecast

Moderate rain
63.7°F
55.4°F
58.2°F
96%
0.22 in
89%
0%
9.8 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 6.83 μg/m3
PM10: 9.83 μg/m3
Carbon Monoxide: 132.69 μg/m3
Nitrogen Dioxide: 6.61 μg/m3
Sulphur Dioxide: 1.21 μg/m3
Ozone: 59.76 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:45 AM
Sunset: 8:10 PM
Daylight: 14 hrs 49 mins
Moonrise: 2:51 PM
Moon Transit: 8:49 PM
Moonset: 2:18 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

10:26 AM - 12:56 AM
8:19 PM - 10:49 PM

Minor Periods

2:21 PM - 3:51 PM
1:48 AM - 3:18 AM

Action Rating: 3 out of 5

Tuesday, May 26, 2026

Weather Forecast

Partly Cloudy
67.1°F
54.9°F
61.1°F
82%
0 in
0%
0%
10.1 mph
5.3


Air Quality

AQI: 1 - Good
PM2.5: 14.63 μg/m3
PM10: 15.23 μg/m3
Carbon Monoxide: 186.41 μg/m3
Nitrogen Dioxide: 26.55 μg/m3
Sulphur Dioxide: 1.61 μg/m3
Ozone: 41.6 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:45 AM
Sunset: 8:11 PM
Daylight: 14 hrs 51 mins
Moonrise: 3:54 PM
Moon Transit: 9:31 PM
Moonset: 2:38 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

11:07 AM - 1:37 PM
9:01 PM - 11:31 PM

Minor Periods

3:24 PM - 4:54 PM
2:08 AM - 3:38 AM

Action Rating: 2 out of 5

Wednesday, May 27, 2026

Weather Forecast

Partly Cloudy
73.7°F
56.5°F
64.9°F
78%
0 in
0%
0%
9.8 mph
7.6


Air Quality

AQI: 2 - Moderate
PM2.5: 18.84 μg/m3
PM10: 19.63 μg/m3
Carbon Monoxide: 197.63 μg/m3
Nitrogen Dioxide: 17.53 μg/m3
Sulphur Dioxide: 2.32 μg/m3
Ozone: 85.44 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:45 AM
Sunset: 8:12 PM
Daylight: 14 hrs 52 mins
Moonrise: 4:58 PM
Moon Transit: 10:13 PM
Moonset: 2:59 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

11:49 AM - 2:19 PM
12:00 AM - 12:00 AM

Minor Periods

4:28 PM - 5:58 PM
2:29 AM - 3:59 AM

Action Rating: 2 out of 5

Thursday, May 28, 2026

Weather Forecast

Partly Cloudy
71.2°F
55.2°F
63.6°F
69%
0 in
0%
0%
11.4 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 9.3 μg/m3
PM10: 9.81 μg/m3
Carbon Monoxide: 216.66 μg/m3
Nitrogen Dioxide: 10.58 μg/m3
Sulphur Dioxide: 1.66 μg/m3
Ozone: 76.62 μg/m3

Astronomical

Sunrise: 5:19 AM
Sun Transit: 12:45 AM
Sunset: 8:13 PM
Daylight: 14 hrs 53 mins
Moonrise: 6:02 PM
Moon Transit: 10:58 PM
Moonset: 3:21 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

12:33 AM - 3:03 PM
12:00 AM - 12:00 AM

Minor Periods

5:32 PM - 7:02 PM
2:51 AM - 4:21 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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