Water Temperature of the Thames River in New London, CT

Current Water Temperature

41.4°F

Measurement Time: Monday, March 23, 2026, 6:18 PM EDT

Today's Tides

 High: March 23, 12:58 AM, 3.1 ft
Low: March 23, 7:57 AM, -0.2 ft
 High: March 23, 1:29 PM, 2.3 ft
Low: March 23, 7:53 PM, 0.2 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

39°F
Overcast
Overcast
33.5°F
37.1°F
76%
N 7.8 mph
10.3 mph
31.4°F
35.3°F
0 in
100%
9 mi
1014 mbar
0.1

Five Day Weather Forecast

Heavy rain
Mon
H: 39°F
L: 35°F
Sunny
Tue
H: 48°F
L: 30°F
Overcast
Wed
H: 44°F
L: 35°F
Overcast
Thu
H: 47°F
L: 41°F
Patchy rain nearby
Fri
H: 52°F
L: 36°F

Air Quality

AQI: 1 - Good
PM2.5: 2.45 μg/m3
PM10: 2.55 μg/m3
Carbon Monoxide: 204.85 μg/m3
Nitrogen Dioxide: 5.35 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 90 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

Flood Warning issued March 23 at 11:35AM EDT until March 25 at 5:00PM EDT by NWS Boston/Norton MA

Effective: Mon March 23, 2026, 11:35 AM
Expires: Mon March 23, 2026, 11:45 PM

...The National Weather Service in Boston/Norton MA has issued a Flood Warning for the following rivers in Rhode Island... Pawtuxet River At Cranston affecting Kent and Providence Counties. For the Pawtuxet River...including Cranston, Scituate Reservoir... Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Pawtuxet River at Cranston. * WHEN...From this evening to Wednesday afternoon. * IMPACTS...At 9.5 feet, Parking lots and roads are flooded in low lying areas of Warwick and Cranston near the Pawtuxet River. Impacted roads include River Street, Pioneer Avenue, Bellows Street and Venturi Avenue in Warwick. * ADDITIONAL DETAILS... - At 10:45 AM EDT Monday the stage was 7.6 feet. - Bankfull stage is 9.0 feet. - Forecast...The river is expected to rise above flood stage this evening to a crest of 9.5 feet just after midnight tonight. It will then fall below flood stage late Wednesday morning. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued this evening at 1145 PM EDT.
Monday, March 23, 2026

Weather Forecast

Heavy rain
39.4°F
34.7°F
39.1°F
92%
0.86 in
89%
0%
14.8 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 6.47 μg/m3
PM10: 7.35 μg/m3
Carbon Monoxide: 248.21 μg/m3
Nitrogen Dioxide: 8.52 μg/m3
Sulphur Dioxide: 1.81 μg/m3
Ozone: 92.8 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

Sunny
47.5°F
30.4°F
37.8°F
65%
0 in
0%
0%
14.8 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 4.02 μg/m3
PM10: 4.83 μg/m3
Carbon Monoxide: 187.37 μg/m3
Nitrogen Dioxide: 4.47 μg/m3
Sulphur Dioxide: 1.89 μg/m3
Ozone: 97.32 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

Wednesday, March 25, 2026

Weather Forecast

Overcast
44.2°F
35.4°F
39.7°F
69%
0 in
0%
0%
14.5 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 9.03 μg/m3
PM10: 10.91 μg/m3
Carbon Monoxide: 176.53 μg/m3
Nitrogen Dioxide: 9.15 μg/m3
Sulphur Dioxide: 2.46 μg/m3
Ozone: 84.92 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 12:00 AM
Sunset: 7:06 PM
Daylight: 12 hrs 23 mins
Moonrise: 10:56 AM
Moon Transit: 7:07 PM
Moonset: 2:19 AM
Moon Phase: First Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

8:36 AM - 11:06 AM
6:37 PM - 9:07 PM

Minor Periods

10:26 AM - 11:56 AM
1:49 AM - 3:19 AM

Action Rating: 3 out of 5

Thursday, March 26, 2026

Weather Forecast

Overcast
47.3°F
40.6°F
44.5°F
91%
0 in
0%
0%
19.2 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 13.55 μg/m3
PM10: 16.01 μg/m3
Carbon Monoxide: 199.88 μg/m3
Nitrogen Dioxide: 10.18 μg/m3
Sulphur Dioxide: 3.17 μg/m3
Ozone: 97.96 μg/m3

Astronomical

Sunrise: 6:42 AM
Sun Transit: 12:00 AM
Sunset: 7:07 PM
Daylight: 12 hrs 25 mins
Moonrise: 12:06 AM
Moon Transit: 8:07 PM
Moonset: 3:15 AM
Moon Phase: First Quarter
Moon Illumination: 56.4%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

11:36 AM - 1:06 PM
2:45 AM - 4:15 AM

Action Rating: 3 out of 5

Friday, March 27, 2026

Weather Forecast

Patchy rain nearby
51.9°F
36.2°F
47.1°F
78%
0.11 in
75%
0%
21.7 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 13.08 μg/m3
PM10: 15.75 μg/m3
Carbon Monoxide: 211.28 μg/m3
Nitrogen Dioxide: 5.6 μg/m3
Sulphur Dioxide: 2.5 μg/m3
Ozone: 115.69 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 12:00 AM
Sunset: 7:08 PM
Daylight: 12 hrs 28 mins
Moonrise: 1:20 PM
Moon Transit: 9:03 PM
Moonset: 3:59 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

10:35 AM - 1:05 PM
8:33 PM - 11:03 PM

Minor Periods

12:50 AM - 2:20 PM
3:29 AM - 4:59 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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