Water Temperature of the Thames River in New London, CT

Current Water Temperature

34.7°F

Measurement Time: Friday, February 20, 2026, 2:12 AM EST

Today's Tides

Low: February 20, 5:23 AM, -0.2 ft
 High: February 20, 11:06 AM, 2.5 ft
Low: February 20, 5:33 PM, -0.2 ft
 High: February 20, 11:34 PM, 2.7 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

30.9°F
Clear
Clear
24°F
31.6°F
85%
E 7.2 mph
14.3 mph
28°F
29.1°F
0 in
0%
9 mi
1017 mbar
0

Five Day Weather Forecast

Moderate rain
Fri
H: 39°F
L: 30°F
Patchy rain nearby
Sat
H: 40°F
L: 30°F
Cloudy
Sun
H: 35°F
L: 28°F
Blizzard
Mon
H: 32°F
L: 29°F
Partly Cloudy
Tue
H: 34°F
L: 24°F

Air Quality

PM2.5: 6.85 μg/m3
PM10: 9.65 μg/m3
Carbon Monoxide: 219.85 μg/m3
Nitrogen Dioxide: 4.55 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 72 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 12:02 AM
Sunset: 5:28 PM
Daylight: 10 hrs 52 mins
Moonrise: 7:57 AM
Moon Transit: 2:31 PM
Moonset: 9:19 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:01 PM - 4:31 PM

Minor Periods

8:49 PM - 10:19 PM
7:27 AM - 8:57 AM

Action Rating: 2 out of 5

Winter Weather Advisory issued February 19 at 12:13PM EST until February 21 at 7:00AM EST by NWS Boston/Norton MA

Effective: Thu February 19, 2026, 12:13 PM
Expires: Fri February 20, 2026, 7:00 AM

* WHAT...Mixed precipitation expected. Total snow and sleet accumulations of a coating to 3 inches and ice accumulations up to around two tenths of an inch. * WHERE...Northern Connecticut, northwest Rhode Island, and much of Massachusetts along and south of the Massachusetts Turnpike. * WHEN...From 10 AM Friday to 7 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute.

Slow down and use caution while traveling.
Friday, February 20, 2026

Weather Forecast

Moderate rain
39.2°F
30.4°F
33.8°F
91%
0.35 in
86%
3%
18.6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 6.3 μg/m3
PM10: 8.94 μg/m3
Carbon Monoxide: 225.77 μg/m3
Nitrogen Dioxide: 3.92 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 77.08 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 12:02 AM
Sunset: 5:28 PM
Daylight: 10 hrs 52 mins
Moonrise: 7:57 AM
Moon Transit: 2:31 PM
Moonset: 9:19 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:01 PM - 4:31 PM

Minor Periods

8:49 PM - 10:19 PM
7:27 AM - 8:57 AM

Action Rating: 2 out of 5

Saturday, February 21, 2026

Weather Forecast

Patchy rain nearby
40.1°F
30.3°F
34.1°F
88%
0 in
75%
2%
11.2 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 3.81 μg/m3
PM10: 4.57 μg/m3
Carbon Monoxide: 202.81 μg/m3
Nitrogen Dioxide: 7.15 μg/m3
Sulphur Dioxide: 2.03 μg/m3
Ozone: 83.72 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 12:01 AM
Sunset: 5:29 PM
Daylight: 10 hrs 54 mins
Moonrise: 8:21 AM
Moon Transit: 3:20 PM
Moonset: 10:34 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

4:53 AM - 7:23 AM
2:50 PM - 5:20 PM

Minor Periods

10:04 PM - 11:34 PM
7:51 AM - 9:21 AM

Action Rating: 3 out of 5

Sunday, February 22, 2026

Weather Forecast

Cloudy
35.2°F
28.4°F
31.4°F
74%
0 in
0%
0%
26.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 5.97 μg/m3
PM10: 7.21 μg/m3
Carbon Monoxide: 203.78 μg/m3
Nitrogen Dioxide: 9.37 μg/m3
Sulphur Dioxide: 2.35 μg/m3
Ozone: 73.04 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 12:01 AM
Sunset: 5:31 PM
Daylight: 10 hrs 57 mins
Moonrise: 8:48 AM
Moon Transit: 4:12 PM
Moonset: 11:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.1%

Best Times for Fishing or Hunting

Major Periods

5:44 AM - 8:14 AM
3:42 PM - 6:12 PM

Minor Periods

12:00 AM - 12:00 AM
8:18 AM - 9:48 AM

Action Rating: 2 out of 5

Monday, February 23, 2026

Weather Forecast

Blizzard
31.5°F
28.9°F
30.1°F
86%
0.53 in
83%
54%
34 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.26 μg/m3
PM10: 6.12 μg/m3
Carbon Monoxide: 168 μg/m3
Nitrogen Dioxide: 2.78 μg/m3
Sulphur Dioxide: 1.72 μg/m3
Ozone: 84.77 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 12:01 AM
Sunset: 5:32 PM
Daylight: 11 hrs mins
Moonrise: 9:22 AM
Moon Transit: 5:08 PM
Moonset: 12:50 AM
Moon Phase: First Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

6:38 AM - 9:08 AM
4:38 PM - 7:08 PM

Minor Periods

8:52 AM - 10:22 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, February 24, 2026

Weather Forecast

Partly Cloudy
34°F
23.6°F
26.8°F
77%
0 in
0%
0%
14.8 mph
0


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: 6:31 AM
Sun Transit: 12:01 AM
Sunset: 5:33 PM
Daylight: 11 hrs 2 mins
Moonrise: 10:04 AM
Moon Transit: 6:08 PM
Moonset: 1:07 AM
Moon Phase: First Quarter
Moon Illumination: 51.1%

Best Times for Fishing or Hunting

Major Periods

7:37 AM - 10:07 AM
5:38 PM - 8:08 PM

Minor Periods

9:34 AM - 11:04 AM
12:37 AM - 2:07 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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