Water Temperature of the Thames River in New London, CT

Current Water Temperature

39.7°F

Measurement Time: Thursday, January 15, 2026, 8:48 PM EST

Today's Tides

Low: January 15, 12:45 AM, 0.4 ft
 High: January 15, 6:58 AM, 2.6 ft
Low: January 15, 1:39 PM, 0.1 ft
 High: January 15, 7:21 PM, 1.9 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

32.5°F
Partly Cloudy
Partly Cloudy
21.3°F
30.3°F
49%
W 17.7 mph
25.7 mph
19.2°F
16.9°F
0 in
0%
9 mi
998 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Thu
H: 41°F
L: 29°F
Sunny
Fri
H: 34°F
L: 23°F
Cloudy
Sat
H: 37°F
L: 34°F
Moderate or heavy snow showers
Sun
H: 37°F
L: 30°F
Blizzard
Mon
H: 31°F
L: 25°F

Air Quality

PM2.5: 2.65 μg/m3
PM10: 2.65 μg/m3
Carbon Monoxide: 170.85 μg/m3
Nitrogen Dioxide: 4.85 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 67 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 11:57 AM
Sunset: 4:44 PM
Daylight: 9 hrs 32 mins
Moonrise: 5:03 AM
Moon Transit: 9:19 AM
Moonset: 1:35 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

8:49 AM - 11:19 AM
12:00 AM - 12:00 AM

Minor Periods

1:05 PM - 2:35 PM
4:33 AM - 6:03 AM

Action Rating: 2 out of 5

Thursday, January 15, 2026

Weather Forecast

Patchy rain nearby
41.2°F
28.9°F
37.9°F
82%
0.01 in
81%
0%
20.8 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 9.02 μg/m3
PM10: 11.91 μg/m3
Carbon Monoxide: 236.01 μg/m3
Nitrogen Dioxide: 9.21 μg/m3
Sulphur Dioxide: 3.17 μg/m3
Ozone: 57.36 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 11:57 AM
Sunset: 4:44 PM
Daylight: 9 hrs 32 mins
Moonrise: 5:03 AM
Moon Transit: 9:19 AM
Moonset: 1:35 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

8:49 AM - 11:19 AM
12:00 AM - 12:00 AM

Minor Periods

1:05 PM - 2:35 PM
4:33 AM - 6:03 AM

Action Rating: 2 out of 5

Friday, January 16, 2026

Weather Forecast

Sunny
34.2°F
22.5°F
28.7°F
51%
0 in
0%
0%
24.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 2.83 μg/m3
PM10: 2.97 μg/m3
Carbon Monoxide: 177.93 μg/m3
Nitrogen Dioxide: 5.86 μg/m3
Sulphur Dioxide: 2.06 μg/m3
Ozone: 67.84 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 11:58 AM
Sunset: 4:45 PM
Daylight: 9 hrs 34 mins
Moonrise: 5:57 AM
Moon Transit: 10:11 AM
Moonset: 2:28 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:41 AM - 12:11 AM

Minor Periods

1:58 PM - 3:28 PM
5:27 AM - 6:57 AM

Action Rating: 3 out of 5

Saturday, January 17, 2026

Weather Forecast

Cloudy
37.4°F
33.6°F
35.3°F
72%
0 in
0%
0%
14.5 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 6.96 μg/m3
PM10: 9.07 μg/m3
Carbon Monoxide: 189.57 μg/m3
Nitrogen Dioxide: 6.38 μg/m3
Sulphur Dioxide: 3.55 μg/m3
Ozone: 67.2 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 11:58 AM
Sunset: 4:47 PM
Daylight: 9 hrs 36 mins
Moonrise: 6:44 AM
Moon Transit: 11:04 AM
Moonset: 3:29 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:36 AM - 3:06 AM
10:34 AM - 1:04 PM

Minor Periods

2:59 PM - 4:29 PM
6:14 AM - 7:44 AM

Action Rating: 4 out of 5

Sunday, January 18, 2026

Weather Forecast

Moderate or heavy snow showers
36.7°F
30.2°F
33.7°F
86%
0.49 in
66%
21%
18.3 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 9.3 μg/m3
PM10: 11.47 μg/m3
Carbon Monoxide: 207.04 μg/m3
Nitrogen Dioxide: 12.03 μg/m3
Sulphur Dioxide: 5.84 μg/m3
Ozone: 51.77 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 11:58 AM
Sunset: 4:48 PM
Daylight: 9 hrs 37 mins
Moonrise: 7:23 AM
Moon Transit: 11:55 AM
Moonset: 4:35 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

1:28 AM - 3:58 AM
11:25 AM - 1:55 PM

Minor Periods

4:05 PM - 5:35 PM
6:53 AM - 8:23 AM

Action Rating: 4 out of 5

Monday, January 19, 2026

Weather Forecast

Blizzard
30.5°F
25.4°F
27.8°F
86%
1.2 in
89%
49%
27.7 mph
0


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: 7:10 AM
Sun Transit: 12:00 AM
Sunset: 4:49 PM
Daylight: 9 hrs 39 mins
Moonrise: 7:56 AM
Moon Transit: 12:45 AM
Moonset: 5:43 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

2:19 AM - 4:49 AM
12:15 AM - 2:45 PM

Minor Periods

5:13 PM - 6:43 PM
7:26 AM - 8:56 AM

Action Rating: 5 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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