Water Temperature of the Thames River in New London, CT

Current Water Temperature

37.4°F

Measurement Time: Friday, March 20, 2026, 12:00 PM EDT

Today's Tides

Low: March 20, 5:16 AM, -0.4 ft
 High: March 20, 11:00 AM, 2.6 ft
Low: March 20, 5:19 PM, -0.2 ft
 High: March 20, 11:19 PM, 3.1 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

42.1°F
Sunny
Sunny
36°F
46.8°F
76%
SSW 10.5 mph
14.5 mph
42.6°F
42.2°F
0 in
0%
9 mi
1019 mbar
3.9

Five Day Weather Forecast

Patchy rain nearby
Fri
H: 52°F
L: 33°F
Patchy rain nearby
Sat
H: 48°F
L: 40°F
Moderate rain
Sun
H: 43°F
L: 38°F
Heavy rain
Mon
H: 43°F
L: 32°F
Patchy rain nearby
Tue
H: 42°F
L: 30°F

Air Quality

AQI: 1 - Good
PM2.5: 10.75 μg/m3
PM10: 14.45 μg/m3
Carbon Monoxide: 204.85 μg/m3
Nitrogen Dioxide: 6.45 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 102 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 10:27 AM
Sunset: 7:01 PM
Daylight: 12 hrs 9 mins
Moonrise: 7:23 AM
Moon Transit: 2:13 PM
Moonset: 9:18 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

3:46 AM - 6:16 AM
1:43 PM - 4:13 PM

Minor Periods

8:48 PM - 10:18 PM
6:53 AM - 8:23 AM

Action Rating: 4 out of 5

Friday, March 20, 2026

Weather Forecast

Patchy rain nearby
52°F
32.9°F
41.3°F
82%
0.1 in
78%
0%
20.6 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 11.63 μg/m3
PM10: 14.23 μg/m3
Carbon Monoxide: 221.45 μg/m3
Nitrogen Dioxide: 8.69 μg/m3
Sulphur Dioxide: 2.54 μg/m3
Ozone: 90.4 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 10:27 AM
Sunset: 7:01 PM
Daylight: 12 hrs 9 mins
Moonrise: 7:23 AM
Moon Transit: 2:13 PM
Moonset: 9:18 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

3:46 AM - 6:16 AM
1:43 PM - 4:13 PM

Minor Periods

8:48 PM - 10:18 PM
6:53 AM - 8:23 AM

Action Rating: 4 out of 5

Saturday, March 21, 2026

Weather Forecast

Patchy rain nearby
48.2°F
40.1°F
43.7°F
78%
0.12 in
79%
0%
19.7 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 8.2 μg/m3
PM10: 9.38 μg/m3
Carbon Monoxide: 212.13 μg/m3
Nitrogen Dioxide: 8.91 μg/m3
Sulphur Dioxide: 2.23 μg/m3
Ozone: 87.88 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 12:00 AM
Sunset: 7:02 PM
Daylight: 12 hrs 12 mins
Moonrise: 7:50 AM
Moon Transit: 3:05 PM
Moonset: 10:36 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

4:37 AM - 7:07 AM
2:35 PM - 5:05 PM

Minor Periods

10:06 PM - 11:36 PM
7:20 AM - 8:50 AM

Action Rating: 4 out of 5

Sunday, March 22, 2026

Weather Forecast

Moderate rain
43.3°F
38.3°F
41.1°F
88%
0.26 in
87%
0%
17.7 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 12.62 μg/m3
PM10: 15.63 μg/m3
Carbon Monoxide: 226.69 μg/m3
Nitrogen Dioxide: 17.91 μg/m3
Sulphur Dioxide: 2.28 μg/m3
Ozone: 76.84 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 12:00 AM
Sunset: 7:03 PM
Daylight: 12 hrs 14 mins
Moonrise: 8:23 AM
Moon Transit: 4:02 PM
Moonset: 11:55 PM
Moon Phase: Waxing Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

5:32 AM - 8:02 AM
3:32 PM - 6:02 PM

Minor Periods

12:00 AM - 12:00 AM
7:53 AM - 9:23 AM

Action Rating: 2 out of 5

Monday, March 23, 2026

Weather Forecast

Heavy rain
43°F
31.8°F
38.7°F
84%
1.52 in
89%
0%
23 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.31 μg/m3
PM10: 3.61 μg/m3
Carbon Monoxide: 223.97 μg/m3
Nitrogen Dioxide: 7.55 μg/m3
Sulphur Dioxide: 1.66 μg/m3
Ozone: 91.16 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 12:00 AM
Sunset: 7:04 PM
Daylight: 12 hrs 17 mins
Moonrise: 9:03 AM
Moon Transit: 5:02 PM
Moonset: 12:55 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

6:31 AM - 9:01 AM
4:32 PM - 7:02 PM

Minor Periods

8:33 AM - 10:03 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Tuesday, March 24, 2026

Weather Forecast

Patchy rain nearby
41.8°F
30°F
34.9°F
65%
0.01 in
58%
12%
15.2 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.03 μg/m3
PM10: 2.23 μg/m3
Carbon Monoxide: 194.57 μg/m3
Nitrogen Dioxide: 5.75 μg/m3
Sulphur Dioxide: 1.59 μg/m3
Ozone: 89.69 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 12:00 AM
Sunset: 7:05 PM
Daylight: 12 hrs 20 mins
Moonrise: 9:54 AM
Moon Transit: 6:05 PM
Moonset: 1:11 AM
Moon Phase: Waxing Crescent
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

7:33 AM - 10:03 AM
5:35 PM - 8:05 PM

Minor Periods

9:24 AM - 10:54 AM
12:41 AM - 2:11 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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