Water Temperature of the Thames River in New London, CT

Current Water Temperature

34.9°F

Measurement Time: Saturday, March 7, 2026, 1:42 PM EST

Today's Tides

Low: March 7, 6:15 AM, 0.0 ft
 High: March 7, 12:00 PM, 2.1 ft
Low: March 7, 6:17 PM, 0.3 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

39°F
Mist
Mist
34°F
38.4°F
96%
SW 6.9 mph
11.4 mph
34.1°F
38.5°F
0 in
100%
1 mi
1020 mbar
1

Five Day Weather Forecast

Patchy rain nearby
Sat
H: 42°F
L: 35°F
Fog
Sun
H: 50°F
L: 37°F
Freezing fog
Mon
H: 37°F
L: 27°F
Freezing fog
Tue
H: 51°F
L: 28°F
Patchy rain nearby
Wed
H: 49°F
L: 42°F

Air Quality

AQI: 1 - Good
PM2.5: 5.05 μg/m3
PM10: 6.55 μg/m3
Carbon Monoxide: 196.85 μg/m3
Nitrogen Dioxide: 6.05 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 12:00 AM
Sunset: 5:46 PM
Daylight: 11 hrs 33 mins
Moonrise: 10:32 PM
Moon Transit: 2:40 AM
Moonset: 7:46 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.2%

Best Times for Fishing or Hunting

Major Periods

2:10 AM - 4:40 AM
5:00 PM - 7:30 PM

Minor Periods

10:02 PM - 11:32 PM
7:16 AM - 8:46 AM

Action Rating: 2 out of 5

Special Weather Statement issued March 7 at 3:29AM EST by NWS Upton NY

Effective: Sat March 7, 2026, 3:29 AM
Expires: Sat March 7, 2026, 10:00 AM

Locally dense fog is expected this morning. Motorists should be prepared for rapidly changing visibilities and should use caution if traveling. Slow down, use your low beam headlights, and leave plenty of distance ahead of you. Visibilities should begin improving by 10am.


Saturday, March 7, 2026

Weather Forecast

Patchy rain nearby
42.1°F
35.2°F
38.2°F
98%
0.02 in
87%
0%
10.3 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 7.45 μg/m3
PM10: 10.14 μg/m3
Carbon Monoxide: 203.65 μg/m3
Nitrogen Dioxide: 7.09 μg/m3
Sulphur Dioxide: 1.39 μg/m3
Ozone: 74.6 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 12:00 AM
Sunset: 5:46 PM
Daylight: 11 hrs 33 mins
Moonrise: 10:32 PM
Moon Transit: 2:40 AM
Moonset: 7:46 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.2%

Best Times for Fishing or Hunting

Major Periods

2:10 AM - 4:40 AM
5:00 PM - 7:30 PM

Minor Periods

10:02 PM - 11:32 PM
7:16 AM - 8:46 AM

Action Rating: 2 out of 5

Sunday, March 8, 2026

Weather Forecast

Fog
49.6°F
37.2°F
44.5°F
98%
0 in
0%
0%
12.3 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 6.88 μg/m3
PM10: 7.76 μg/m3
Carbon Monoxide: 175.05 μg/m3
Nitrogen Dioxide: 14.01 μg/m3
Sulphur Dioxide: 2.2 μg/m3
Ozone: 46.72 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 12:00 AM
Sunset: 5:47 PM
Daylight: 11 hrs 35 mins
Moonrise: 11:36 PM
Moon Transit: 3:25 AM
Moonset: 8:13 AM
Moon Phase: Waning Gibbous
Moon Illumination: 69.3%

Best Times for Fishing or Hunting

Major Periods

2:55 AM - 5:25 AM
5:47 PM - 8:17 PM

Minor Periods

12:00 AM - 12:00 AM
7:43 AM - 9:13 AM

Action Rating: 3 out of 5

Monday, March 9, 2026

Weather Forecast

Freezing fog
37.2°F
27.1°F
31.7°F
97%
0 in
0%
0%
11.2 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 11.29 μg/m3
PM10: 12.73 μg/m3
Carbon Monoxide: 241.41 μg/m3
Nitrogen Dioxide: 16.26 μg/m3
Sulphur Dioxide: 3.98 μg/m3
Ozone: 57.12 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 11:58 AM
Sunset: 5:48 PM
Daylight: 11 hrs 38 mins
Moonrise: 12:36 AM
Moon Transit: 4:12 AM
Moonset: 8:44 AM
Moon Phase: Waning Gibbous
Moon Illumination: 58.5%

Best Times for Fishing or Hunting

Major Periods

3:42 AM - 6:12 AM
6:35 PM - 9:05 PM

Minor Periods

8:14 AM - 9:44 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, March 10, 2026

Weather Forecast

Freezing fog
50.7°F
28.2°F
36.4°F
95%
0 in
0%
0%
8.7 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 7.84 μg/m3
PM10: 8.65 μg/m3
Carbon Monoxide: 218.32 μg/m3
Nitrogen Dioxide: 10.04 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 52.8 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 11:58 AM
Sunset: 5:49 PM
Daylight: 11 hrs 41 mins
Moonrise: 12:39 AM
Moon Transit: 5:02 AM
Moonset: 9:21 AM
Moon Phase: Last Quarter
Moon Illumination: 47.2%

Best Times for Fishing or Hunting

Major Periods

4:32 AM - 7:02 AM
7:25 PM - 9:55 PM

Minor Periods

8:51 AM - 10:21 AM
12:09 AM - 1:39 AM

Action Rating: 2 out of 5

Wednesday, March 11, 2026

Weather Forecast

Patchy rain nearby
48.7°F
41.8°F
43.6°F
99%
0.09 in
86%
0%
9.4 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 5.81 μg/m3
PM10: 6.59 μg/m3
Carbon Monoxide: 195.62 μg/m3
Nitrogen Dioxide: 9.23 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 59.17 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 11:58 AM
Sunset: 5:51 PM
Daylight: 11 hrs 44 mins
Moonrise: 1:38 AM
Moon Transit: 5:53 AM
Moonset: 10:08 AM
Moon Phase: Last Quarter
Moon Illumination: 36.0%

Best Times for Fishing or Hunting

Major Periods

5:23 AM - 7:53 AM
8:17 PM - 10:47 PM

Minor Periods

9:38 AM - 11:08 AM
1:08 AM - 2:38 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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