Water Temperature of the Thames River in New London, CT

Current Water Temperature

70.0°F

Measurement Time: Sunday, July 19, 2026, 6:54 AM EDT

Today's Tides

 High: July 19, 1:40 AM, 2.8 ft
Low: July 19, 8:14 AM, 0.2 ft
 High: July 19, 2:15 PM, 3.1 ft
Low: July 19, 8:55 PM, 0.5 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

71.1°F
Sunny
Sunny
71.1°F
75.6°F
87%
NW 11.6 mph
18.9 mph
70.2°F
65.4°F
0 in
0%
9 mi
1004 mbar
0.3

Five Day Weather Forecast

Sunny
Sun
H: 81°F
L: 64°F
Sunny
Mon
H: 76°F
L: 59°F
Partly Cloudy
Tue
H: 74°F
L: 64°F
Patchy rain nearby
Wed
H: 78°F
L: 68°F
Sunny
Thu
H: 77°F
L: 59°F

Air Quality

AQI: 1 - Good
PM2.5: 4.8 μg/m3
PM10: 4.9 μg/m3
Carbon Monoxide: 381 μg/m3
Nitrogen Dioxide: 2.7 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 98 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 12:54 AM
Sunset: 8:18 PM
Daylight: 14 hrs 47 mins
Moonrise: 11:33 AM
Moon Transit: 5:25 PM
Moonset: 11:06 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

7:01 AM - 9:31 AM
4:55 PM - 7:25 PM

Minor Periods

12:00 AM - 12:00 AM
11:03 AM - 12:33 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
81.3°F
64.1°F
73.2°F
71%
0.13 in
57%
0%
17.2 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 6.77 μg/m3
PM10: 6.94 μg/m3
Carbon Monoxide: 185.88 μg/m3
Nitrogen Dioxide: 3.59 μg/m3
Sulphur Dioxide: 0.48 μg/m3
Ozone: 94.83 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 12:54 AM
Sunset: 8:18 PM
Daylight: 14 hrs 47 mins
Moonrise: 11:33 AM
Moon Transit: 5:25 PM
Moonset: 11:06 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

7:01 AM - 9:31 AM
4:55 PM - 7:25 PM

Minor Periods

12:00 AM - 12:00 AM
11:03 AM - 12:33 AM

Action Rating: 2 out of 5

Monday, July 20, 2026

Weather Forecast

Sunny
75.9°F
59.4°F
67.8°F
58%
0 in
3%
0%
10.5 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 6.51 μg/m3
PM10: 7.55 μg/m3
Carbon Monoxide: 120.71 μg/m3
Nitrogen Dioxide: 5.73 μg/m3
Sulphur Dioxide: 0.39 μg/m3
Ozone: 83.75 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 12:54 AM
Sunset: 8:17 PM
Daylight: 14 hrs 45 mins
Moonrise: 12:40 AM
Moon Transit: 6:08 PM
Moonset: 12:06 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

7:44 AM - 10:14 AM
5:38 PM - 8:08 PM

Minor Periods

12:10 AM - 1:40 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, July 21, 2026

Weather Forecast

Partly Cloudy
73.7°F
64.2°F
69°F
86%
0.26 in
77%
0%
14.8 mph
6.9


Air Quality

AQI: 1 - Good
PM2.5: 10.46 μg/m3
PM10: 15.14 μg/m3
Carbon Monoxide: 139.67 μg/m3
Nitrogen Dioxide: 2.81 μg/m3
Sulphur Dioxide: 0.44 μg/m3
Ozone: 91.63 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 12:54 AM
Sunset: 8:16 PM
Daylight: 14 hrs 43 mins
Moonrise: 1:45 PM
Moon Transit: 6:52 PM
Moonset: 12:28 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

8:28 AM - 10:58 AM
6:22 PM - 8:52 PM

Minor Periods

1:15 PM - 2:45 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 22, 2026

Weather Forecast

Patchy rain nearby
77.5°F
67.9°F
72.9°F
86%
0.24 in
83%
0%
25.3 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 6.58 μg/m3
PM10: 8.88 μg/m3
Carbon Monoxide: 129.65 μg/m3
Nitrogen Dioxide: 2.68 μg/m3
Sulphur Dioxide: 0.28 μg/m3
Ozone: 89.42 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 12:54 AM
Sunset: 8:15 PM
Daylight: 14 hrs 41 mins
Moonrise: 2:50 PM
Moon Transit: 7:38 PM
Moonset: 12:52 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

9:13 AM - 11:43 AM
7:08 PM - 9:38 PM

Minor Periods

2:20 PM - 3:50 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
76.6°F
59.3°F
67.9°F
65%
0 in
5%
0%
12.1 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 7.86 μg/m3
PM10: 9.28 μg/m3
Carbon Monoxide: 214.78 μg/m3
Nitrogen Dioxide: 9.73 μg/m3
Sulphur Dioxide: 0.92 μg/m3
Ozone: 82.89 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 12:54 AM
Sunset: 8:14 PM
Daylight: 14 hrs 40 mins
Moonrise: 3:53 PM
Moon Transit: 8:26 PM
Moonset: 12:21 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

10:00 AM - 12:30 AM
7:56 PM - 10:26 PM

Minor Periods

3:23 PM - 4:53 PM
12:00 AM - 12:00 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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