Water Temperature of the Thames River in New London, CT

Current Water Temperature

35.2°F

Measurement Time: Thursday, February 5, 2026, 9:42 PM EST

Today's Tides

Low: February 5, 5:52 AM, -0.1 ft
 High: February 5, 11:41 AM, 2.4 ft
Low: February 5, 6:13 PM, -0.1 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

18°F
Clear
Clear
7.2°F
22.3°F
73%
N 8.7 mph
18.3 mph
16.1°F
12°F
0 in
0%
9 mi
1014 mbar
0

Five Day Weather Forecast

Sunny
Thu
H: 32°F
L: 7°F
Partly Cloudy
Fri
H: 31°F
L: 10°F
Overcast
Sat
H: 31°F
L: 9°F
Sunny
Sun
H: 19°F
L: -1°F
Sunny
Mon
H: 24°F
L: 3°F

Air Quality

AQI: 1 - Good
PM2.5: 7.55 μg/m3
PM10: 7.95 μg/m3
Carbon Monoxide: 272.85 μg/m3
Nitrogen Dioxide: 13.45 μg/m3
Sulphur Dioxide: 2.85 μg/m3
Ozone: 66 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:02 AM
Sunset: 5:10 PM
Daylight: 10 hrs 14 mins
Moonrise: 9:34 PM
Moon Transit: 2:39 AM
Moonset: 8:40 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

2:09 AM - 4:39 AM
4:58 PM - 7:28 PM

Minor Periods

9:04 PM - 10:34 PM
8:10 AM - 9:40 AM

Action Rating: 3 out of 5

Extreme Cold Watch issued February 5 at 1:03PM EST until February 8 at 1:00PM EST by NWS Upton NY

Effective: Thu February 5, 2026, 1:03 PM
Expires: Fri February 6, 2026, 5:00 AM

* WHAT...Dangerously cold wind chills of 20 below possible. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...From Saturday evening through early Sunday afternoon. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above-ground pipes to protect them from freezing. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Monitor the latest forecasts and warnings for updates.


Extreme Cold Watch issued February 5 at 12:13PM EST until February 8 at 1:00PM EST by NWS Boston/Norton MA

Effective: Thu February 5, 2026, 12:13 PM
Expires: Fri February 6, 2026, 5:00 AM

* WHAT...Dangerously cold wind chills as low as 20 to 25 below zero possible. * WHERE...All of Northern Connecticut. * WHEN...From Saturday evening through Sunday afternoon. * IMPACTS...The dangerously cold wind chills as low as 20 to 25 below zero could cause frostbite on exposed skin in as little as 30 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside.
Thursday, February 5, 2026

Weather Forecast

Sunny
31.5°F
7.3°F
20.1°F
66%
0 in
0%
0%
10.3 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 5.55 μg/m3
PM10: 5.73 μg/m3
Carbon Monoxide: 267.17 μg/m3
Nitrogen Dioxide: 6.87 μg/m3
Sulphur Dioxide: 2.34 μg/m3
Ozone: 71.4 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:02 AM
Sunset: 5:10 PM
Daylight: 10 hrs 14 mins
Moonrise: 9:34 PM
Moon Transit: 2:39 AM
Moonset: 8:40 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

2:09 AM - 4:39 AM
4:58 PM - 7:28 PM

Minor Periods

9:04 PM - 10:34 PM
8:10 AM - 9:40 AM

Action Rating: 3 out of 5

Friday, February 6, 2026

Weather Forecast

Partly Cloudy
30.9°F
10.2°F
21.8°F
70%
0 in
0%
0%
9.8 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 6.2 μg/m3
PM10: 6.94 μg/m3
Carbon Monoxide: 269.97 μg/m3
Nitrogen Dioxide: 9.76 μg/m3
Sulphur Dioxide: 2.39 μg/m3
Ozone: 72.52 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 12:02 AM
Sunset: 5:11 PM
Daylight: 10 hrs 16 mins
Moonrise: 10:39 PM
Moon Transit: 3:22 AM
Moonset: 9:00 AM
Moon Phase: Waning Gibbous
Moon Illumination: 74.1%

Best Times for Fishing or Hunting

Major Periods

2:52 AM - 5:22 AM
5:40 PM - 8:10 PM

Minor Periods

10:09 PM - 11:39 PM
8:30 AM - 10:00 AM

Action Rating: 3 out of 5

Saturday, February 7, 2026

Weather Forecast

Overcast
31.3°F
9.1°F
23.4°F
81%
0 in
0%
0%
26.6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 6.03 μg/m3
PM10: 6.54 μg/m3
Carbon Monoxide: 271.57 μg/m3
Nitrogen Dioxide: 9.43 μg/m3
Sulphur Dioxide: 2.85 μg/m3
Ozone: 69 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 12:02 AM
Sunset: 5:12 PM
Daylight: 10 hrs 19 mins
Moonrise: 11:43 PM
Moon Transit: 4:04 AM
Moonset: 9:21 AM
Moon Phase: Waning Gibbous
Moon Illumination: 63.7%

Best Times for Fishing or Hunting

Major Periods

3:34 AM - 6:04 AM
6:23 PM - 8:53 PM

Minor Periods

12:00 AM - 12:00 AM
8:51 AM - 10:21 AM

Action Rating: 2 out of 5

Sunday, February 8, 2026

Weather Forecast

Sunny
19°F
-0.6°F
8.5°F
56%
0 in
0%
0%
21.5 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 2.32 μg/m3
PM10: 2.41 μg/m3
Carbon Monoxide: 176.55 μg/m3
Nitrogen Dioxide: 3.7 μg/m3
Sulphur Dioxide: 1.48 μg/m3
Ozone: 70.76 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 12:02 AM
Sunset: 5:13 PM
Daylight: 10 hrs 21 mins
Moonrise: 12:43 AM
Moon Transit: 4:48 AM
Moonset: 9:45 AM
Moon Phase: Last Quarter
Moon Illumination: 52.5%

Best Times for Fishing or Hunting

Major Periods

4:18 AM - 6:48 AM
7:08 PM - 9:38 PM

Minor Periods

9:15 AM - 10:45 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, February 9, 2026

Weather Forecast

Sunny
23.9°F
3.4°F
12.6°F
74%
0 in
0%
0%
17.2 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 2.4 μg/m3
PM10: 2.58 μg/m3
Carbon Monoxide: 177.12 μg/m3
Nitrogen Dioxide: 4.05 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 70.92 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 12:02 AM
Sunset: 5:15 PM
Daylight: 10 hrs 24 mins
Moonrise: 12:47 AM
Moon Transit: 5:33 AM
Moonset: 10:13 AM
Moon Phase: Last Quarter
Moon Illumination: 41.2%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
7:54 PM - 10:24 PM

Minor Periods

9:43 AM - 11:13 AM
12:17 AM - 1:47 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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