Water Temperature of the Thames River in New London, CT

Current Water Temperature

34.5°F

Measurement Time: Thursday, February 19, 2026, 2:18 AM EST

Today's Tides

Low: February 19, 4:34 AM, -0.3 ft
 High: February 19, 10:25 AM, 2.6 ft
Low: February 19, 4:52 PM, -0.3 ft
 High: February 19, 10:51 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

35.1°F
Overcast
Overcast
29.5°F
35.1°F
64%
NNE 6.5 mph
9.6 mph
31°F
28.7°F
0 in
100%
9 mi
1014 mbar
0

Five Day Weather Forecast

Partly Cloudy
Thu
H: 38°F
L: 32°F
Heavy rain
Fri
H: 36°F
L: 33°F
Moderate or heavy snow showers
Sat
H: 36°F
L: 30°F
Light snow
Sun
H: 36°F
L: 28°F
Blizzard
Mon
H: 34°F
L: 30°F

Air Quality

AQI: 1 - Good
PM2.5: 4.65 μg/m3
PM10: 5.85 μg/m3
Carbon Monoxide: 214.85 μg/m3
Nitrogen Dioxide: 6.65 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 76 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 12:02 AM
Sunset: 5:27 PM
Daylight: 10 hrs 49 mins
Moonrise: 7:34 AM
Moon Transit: 4:07 PM
Moonset: 8:07 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

3:19 AM - 5:49 AM
3:37 PM - 6:07 PM

Minor Periods

7:37 PM - 9:07 PM
7:04 AM - 8:34 AM

Action Rating: 3 out of 5

Special Weather Statement issued February 18 at 3:20PM EST by NWS Boston/Norton MA

Effective: Wed February 18, 2026, 3:20 PM
Expires: Thu February 19, 2026, 10:00 AM

After a period of light rain/snow showers this afternoon and evening, temperatures will fall below freezing and into the 20s overnight. Light winds will limit how quickly wet surfaces can dry out and thus we expect areas of black ice to develop tonight and persist through the morning commute tomorrow. Travel with caution, especially on untreated surfaces and secondary roads.


Air Quality Alert issued February 18 at 8:58AM EST by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Wed February 18, 2026, 8:58 AM
Expires: Wed February 18, 2026, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Fairfield, New Haven until 11 PM EST this evening. An Air Quality Action Day means that Fine Particulates within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi


Air Quality Alert issued February 18 at 8:17AM EST by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Wed February 18, 2026, 8:17 AM
Expires: Wed February 18, 2026, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Fairfield, New Haven until 11 PM EST this evening. An Air Quality Action Day means that Fine Particulates within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi


Thursday, February 19, 2026

Weather Forecast

Partly Cloudy
38.1°F
32.2°F
35°F
80%
0 in
0%
0%
7.8 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 10.95 μg/m3
PM10: 12.73 μg/m3
Carbon Monoxide: 280.37 μg/m3
Nitrogen Dioxide: 16.57 μg/m3
Sulphur Dioxide: 2.32 μg/m3
Ozone: 61.4 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 12:02 AM
Sunset: 5:27 PM
Daylight: 10 hrs 49 mins
Moonrise: 7:34 AM
Moon Transit: 4:07 PM
Moonset: 8:07 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

3:19 AM - 5:49 AM
3:37 PM - 6:07 PM

Minor Periods

7:37 PM - 9:07 PM
7:04 AM - 8:34 AM

Action Rating: 3 out of 5

Friday, February 20, 2026

Weather Forecast

Heavy rain
35.7°F
32.5°F
34°F
93%
1.38 in
88%
0%
17.2 mph
0.1


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

Moderate or heavy snow showers
35.6°F
30°F
33.7°F
89%
0.19 in
85%
0%
7.6 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

Light snow
35.6°F
28°F
32.6°F
84%
0.04 in
89%
32%
21.9 mph
0.5


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
34.2°F
29.8°F
32.2°F
86%
0.33 in
70%
48%
37.4 mph
0


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

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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