Water Temperature of the Thames River in New London, CT

Current Water Temperature

42.1°F

Measurement Time: Saturday, April 11, 2026, 4:54 AM EDT

Today's Tides

 High: April 11, 5:28 AM, 2.4 ft
Low: April 11, 11:46 AM, 0.5 ft
 High: April 11, 6:00 PM, 2.2 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

46°F
Overcast
Overcast
40.2°F
42.1°F
76%
NW 12.5 mph
21.3 mph
39.1°F
37.9°F
0 in
100%
9 mi
1017 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 65°F
L: 42°F
Partly Cloudy
Sun
H: 51°F
L: 41°F
Overcast
Mon
H: 55°F
L: 44°F
Patchy rain nearby
Tue
H: 61°F
L: 51°F
Patchy rain nearby
Wed
H: 66°F
L: 51°F

Air Quality

AQI: 1 - Good
PM2.5: 4.85 μg/m3
PM10: 4.85 μg/m3
Carbon Monoxide: 195.85 μg/m3
Nitrogen Dioxide: 8.65 μg/m3
Sulphur Dioxide: 2.75 μg/m3
Ozone: 76 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 12:49 AM
Sunset: 7:24 PM
Daylight: 13 hrs 9 mins
Moonrise: 3:22 AM
Moon Transit: 8:06 AM
Moonset: 12:59 AM
Moon Phase: Last Quarter
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

7:36 AM - 10:06 AM
12:00 AM - 12:00 AM

Minor Periods

12:29 AM - 1:59 PM
2:52 AM - 4:22 AM

Action Rating: 2 out of 5

Special Weather Statement issued April 10 at 4:38PM EDT by NWS Upton NY

Effective: Fri April 10, 2026, 4:38 PM
Expires: Sat April 11, 2026, 8:00 AM

The combination of gusty northwest winds, up to 25 to 30 mph, and low relative humidity, as low as 30 percent, on Saturday will produce an elevated risk of fire spread. The forecast considers meteorological, fuel, and land conditions and has been developed in coordination with state fire and land management officials.


Special Weather Statement issued April 10 at 4:28PM EDT by NWS Boston/Norton MA

Effective: Fri April 10, 2026, 4:28 PM
Expires: Sat April 11, 2026, 5:00 AM

The combination of northwest winds gusting up to 30 mph, relative humidity as low as 20 to 30 percent, and a lack of significant rainfall over the past few days will lead to an elevated fire weather potential on Saturday.


Saturday, April 11, 2026

Weather Forecast

Sunny
65.3°F
41.5°F
52.3°F
60%
0 in
0%
0%
17 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 6.77 μg/m3
PM10: 8.18 μg/m3
Carbon Monoxide: 176.57 μg/m3
Nitrogen Dioxide: 6.44 μg/m3
Sulphur Dioxide: 1.88 μg/m3
Ozone: 87.96 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 12:49 AM
Sunset: 7:24 PM
Daylight: 13 hrs 9 mins
Moonrise: 3:22 AM
Moon Transit: 8:06 AM
Moonset: 12:59 AM
Moon Phase: Last Quarter
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

7:36 AM - 10:06 AM
12:00 AM - 12:00 AM

Minor Periods

12:29 AM - 1:59 PM
2:52 AM - 4:22 AM

Action Rating: 2 out of 5

Sunday, April 12, 2026

Weather Forecast

Partly Cloudy
51.1°F
41°F
45.8°F
62%
0 in
0%
0%
11.9 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 8.1 μg/m3
PM10: 9.34 μg/m3
Carbon Monoxide: 190.73 μg/m3
Nitrogen Dioxide: 9.29 μg/m3
Sulphur Dioxide: 2.01 μg/m3
Ozone: 82.2 μg/m3

Astronomical

Sunrise: 6:14 AM
Sun Transit: 12:49 AM
Sunset: 7:25 PM
Daylight: 13 hrs 12 mins
Moonrise: 3:51 AM
Moon Transit: 8:54 AM
Moonset: 2:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%

Best Times for Fishing or Hunting

Major Periods

8:24 AM - 10:54 AM
12:00 AM - 12:00 AM

Minor Periods

1:37 PM - 3:07 PM
3:21 AM - 4:51 AM

Action Rating: 2 out of 5

Monday, April 13, 2026

Weather Forecast

Overcast
54.7°F
43.9°F
49.2°F
90%
0 in
0%
0%
17.4 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 10.85 μg/m3
PM10: 14.65 μg/m3
Carbon Monoxide: 177.13 μg/m3
Nitrogen Dioxide: 4.13 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 106.64 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 12:48 AM
Sunset: 7:26 PM
Daylight: 13 hrs 14 mins
Moonrise: 4:15 AM
Moon Transit: 9:40 AM
Moonset: 3:15 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:10 AM - 11:40 AM

Minor Periods

2:45 PM - 4:15 PM
3:45 AM - 5:15 AM

Action Rating: 2 out of 5

Tuesday, April 14, 2026

Weather Forecast

Patchy rain nearby
61.3°F
50.9°F
56.2°F
88%
0.07 in
86%
0%
11.9 mph
1.7


Air Quality

AQI: 1 - Good
PM2.5: 14.27 μg/m3
PM10: 15.69 μg/m3
Carbon Monoxide: 203.34 μg/m3
Nitrogen Dioxide: 16.18 μg/m3
Sulphur Dioxide: 4.01 μg/m3
Ozone: 77.76 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 12:48 AM
Sunset: 7:27 PM
Daylight: 13 hrs 17 mins
Moonrise: 4:38 AM
Moon Transit: 10:25 AM
Moonset: 4:26 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 2:30 AM
9:55 AM - 12:25 AM

Minor Periods

3:56 PM - 5:26 PM
4:08 AM - 5:38 AM

Action Rating: 2 out of 5

Wednesday, April 15, 2026

Weather Forecast

Patchy rain nearby
66.2°F
51.4°F
57.7°F
87%
0.08 in
88%
0%
11.9 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 12.83 μg/m3
PM10: 14.84 μg/m3
Carbon Monoxide: 215.31 μg/m3
Nitrogen Dioxide: 11.5 μg/m3
Sulphur Dioxide: 2.94 μg/m3
Ozone: 87.38 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 12:48 AM
Sunset: 7:29 PM
Daylight: 13 hrs 20 mins
Moonrise: 5:00 AM
Moon Transit: 11:12 AM
Moonset: 5:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

11:03 AM - 1:33 PM
10:42 AM - 1:12 PM

Minor Periods

5:08 PM - 6:38 PM
4:30 AM - 6:00 AM

Action Rating: 3 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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