Water Temperature of the Thames River in New London, CT

Current Water Temperature

65.7°F

Measurement Time: Sunday, October 4, 2026, 11:00 PM EDT

Today's Tides

 High: October 4, 4:10 AM, 2.4 ft
Low: October 4, 10:37 AM, 0.6 ft
 High: October 4, 4:50 PM, 3.0 ft
Low: October 4, 11:32 PM, 0.4 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

55°F
Chance Rain Showers
Chance Rain Showers
96%
NE 5 mph
54°F

Weather Forecast

Rain Showers Likely then Mostly Cloudy
Tonight
50°F - Rain Showers Likely then Mostly Cloudy
Sunny
Monday
68°F - Sunny
Clear
Monday Night
43°F - Clear
Sunny
Tuesday
59°F - Sunny
Clear
Tuesday Night
42°F - Clear
Sunny
Wednesday
64°F - Sunny
Mostly Clear
Wednesday Night
53°F - Mostly Clear
Sunny
Thursday
71°F - Sunny
Mostly Clear
Thursday Night
51°F - Mostly Clear
Sunny
Friday
68°F - Sunny
Mostly Clear
Friday Night
49°F - Mostly Clear
Sunny
Saturday
65°F - Sunny
Mostly Clear
Saturday Night
45°F - Mostly Clear
Mostly Sunny
Sunday
62°F - Mostly Sunny

Astronomical

Sunrise: 6:49 AM
Sun Transit: 12:37 AM
Sunset: 6:25 PM
Daylight: 11 hrs 37 mins
Moonrise: 12:42 AM
Moon Transit: 7:38 AM
Moonset: 3:24 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:08 AM - 9:38 AM
12:00 AM - 12:00 AM

Minor Periods

2:54 PM - 4:24 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:49 AM
Sun Transit: 12:37 AM
Sunset: 6:25 PM
Daylight: 11 hrs 37 mins
Moonrise: 12:42 AM
Moon Transit: 7:38 AM
Moonset: 3:24 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:08 AM - 9:38 AM
12:00 AM - 12:00 AM

Minor Periods

2:54 PM - 4:24 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:50 AM
Sun Transit: 12:36 AM
Sunset: 6:24 PM
Daylight: 11 hrs 34 mins
Moonrise: 12:58 AM
Moon Transit: 8:34 AM
Moonset: 3:59 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:04 AM - 10:34 AM
12:00 AM - 12:00 AM

Minor Periods

3:29 PM - 4:59 PM
12:28 AM - 1:58 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:50 AM
Sun Transit: 12:36 AM
Sunset: 6:24 PM
Daylight: 11 hrs 34 mins
Moonrise: 12:58 AM
Moon Transit: 8:34 AM
Moonset: 3:59 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:04 AM - 10:34 AM
12:00 AM - 12:00 AM

Minor Periods

3:29 PM - 4:59 PM
12:28 AM - 1:58 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:51 AM
Sun Transit: 12:36 AM
Sunset: 6:22 PM
Daylight: 11 hrs 31 mins
Moonrise: 2:13 AM
Moon Transit: 9:26 AM
Moonset: 4:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

8:56 AM - 11:26 AM
12:00 AM - 12:00 AM

Minor Periods

3:57 PM - 5:27 PM
1:43 AM - 3:13 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:51 AM
Sun Transit: 12:36 AM
Sunset: 6:22 PM
Daylight: 11 hrs 31 mins
Moonrise: 2:13 AM
Moon Transit: 9:26 AM
Moonset: 4:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

8:56 AM - 11:26 AM
12:00 AM - 12:00 AM

Minor Periods

3:57 PM - 5:27 PM
1:43 AM - 3:13 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:52 AM
Sun Transit: 12:36 AM
Sunset: 6:20 PM
Daylight: 11 hrs 29 mins
Moonrise: 3:26 AM
Moon Transit: 10:15 AM
Moonset: 4:51 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:45 AM - 12:15 AM

Minor Periods

4:21 PM - 5:51 PM
2:56 AM - 4:26 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:52 AM
Sun Transit: 12:36 AM
Sunset: 6:20 PM
Daylight: 11 hrs 29 mins
Moonrise: 3:26 AM
Moon Transit: 10:15 AM
Moonset: 4:51 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:45 AM - 12:15 AM

Minor Periods

4:21 PM - 5:51 PM
2:56 AM - 4:26 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:53 AM
Sun Transit: 12:35 AM
Sunset: 6:19 PM
Daylight: 11 hrs 26 mins
Moonrise: 4:37 AM
Moon Transit: 11:01 AM
Moonset: 5:13 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:36 AM - 3:06 AM
10:31 AM - 1:01 PM

Minor Periods

4:43 PM - 6:13 PM
4:07 AM - 5:37 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:53 AM
Sun Transit: 12:35 AM
Sunset: 6:19 PM
Daylight: 11 hrs 26 mins
Moonrise: 4:37 AM
Moon Transit: 11:01 AM
Moonset: 5:13 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:36 AM - 3:06 AM
10:31 AM - 1:01 PM

Minor Periods

4:43 PM - 6:13 PM
4:07 AM - 5:37 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:54 AM
Sun Transit: 12:35 AM
Sunset: 6:17 PM
Daylight: 11 hrs 23 mins
Moonrise: 5:46 AM
Moon Transit: 11:45 AM
Moonset: 5:35 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

1:21 AM - 3:51 AM
11:15 AM - 1:45 PM

Minor Periods

5:05 PM - 6:35 PM
5:16 AM - 6:46 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:54 AM
Sun Transit: 12:35 AM
Sunset: 6:17 PM
Daylight: 11 hrs 23 mins
Moonrise: 5:46 AM
Moon Transit: 11:45 AM
Moonset: 5:35 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

1:21 AM - 3:51 AM
11:15 AM - 1:45 PM

Minor Periods

5:05 PM - 6:35 PM
5:16 AM - 6:46 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:55 AM
Sun Transit: 12:35 AM
Sunset: 6:15 PM
Daylight: 11 hrs 20 mins
Moonrise: 6:54 AM
Moon Transit: 12:30 AM
Moonset: 5:57 PM
Moon Phase: New
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

2:05 AM - 4:35 AM
12:00 AM - 2:30 PM

Minor Periods

5:27 PM - 6:57 PM
6:24 AM - 7:54 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:55 AM
Sun Transit: 12:35 AM
Sunset: 6:15 PM
Daylight: 11 hrs 20 mins
Moonrise: 6:54 AM
Moon Transit: 12:30 AM
Moonset: 5:57 PM
Moon Phase: New
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

2:05 AM - 4:35 AM
12:00 AM - 2:30 PM

Minor Periods

5:27 PM - 6:57 PM
6:24 AM - 7:54 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:56 AM
Sun Transit: 12:35 AM
Sunset: 6:14 PM
Daylight: 11 hrs 18 mins
Moonrise: 8:02 AM
Moon Transit: 1:16 PM
Moonset: 6:22 PM
Moon Phase: New
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

2:50 AM - 5:20 AM
12:46 AM - 3:16 PM

Minor Periods

5:52 PM - 7:22 PM
7:32 AM - 9:02 AM

Action Rating: 4 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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