Water Temperature of the Thames River in New London, CT

Current Water Temperature

33.6°F

Measurement Time: Monday, February 23, 2026, 4:30 AM EST

Today's Tides

 High: February 23, 1:15 AM, 2.7 ft
Low: February 23, 8:15 AM, -0.1 ft
 High: February 23, 1:38 PM, 2.0 ft
Low: February 23, 8:10 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

32.7°F
Patchy snow possible
Patchy snow possible
17.7°F
30.7°F
88%
NE 34.4 mph
47.6 mph
17.5°F
26.8°F
0.04 in
60%
0 mi
995 mbar
0

Five Day Weather Forecast

Blowing snow
Mon
H: 32°F
L: 25°F
Sunny
Tue
H: 31°F
L: 17°F
Moderate or heavy snow showers
Wed
H: 37°F
L: 15°F
Moderate rain
Thu
H: 38°F
L: 32°F
Moderate rain
Fri
H: 43°F
L: 30°F

Air Quality

AQI: 1 - Good
PM2.5: 2.65 μg/m3
PM10: 3.15 μg/m3
Carbon Monoxide: 164.85 μg/m3
Nitrogen Dioxide: 4.45 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 83 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

Blizzard Warning issued February 22 at 1:22PM EST until February 23 at 6:00PM EST by NWS Upton NY

Effective: Sun February 22, 2026, 1:22 PM
Expires: Mon February 23, 2026, 5:00 AM

* WHAT...Blizzard conditions. Additional snow accumulations between 18 and 23 inches. Winds gusting as high as 60 mph. Isolated gusts up to 70 mph are possible late tonight into early Monday morning. * WHERE...In Connecticut, Southern New London County. In New York, Northeast Suffolk and Southeast Suffolk Counties. * WHEN...Until 6 PM EST Monday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening. The damaging winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The hazardous conditions will impact the Monday morning and evening commutes. * ADDITIONAL DETAILS...Heaviest snow and strongest winds are expected tonight into Monday.

Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Check local Department of Transportation information services for the latest road conditions. A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay in your vehicle.


Blizzard Warning issued February 22 at 1:22PM EST until February 23 at 6:00PM EST by NWS Upton NY

Effective: Sun February 22, 2026, 1:22 PM
Expires: Mon February 23, 2026, 5:00 AM

* WHAT...Blizzard conditions. Additional snow accumulations between 16 and 20 inches. Winds gusting as high as 55 mph. * WHERE...Portions of southern Connecticut and southeast New York. * WHEN...Until 6 PM EST Monday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening. The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The hazardous conditions will impact the Monday morning and evening commutes. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Heaviest snow and strongest winds are expected tonight into Monday.

Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Check local Department of Transportation information services for the latest road conditions. A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay in your vehicle.


Coastal Flood Advisory issued February 22 at 3:22PM EST until February 23 at 5:00AM EST by NWS Upton NY

Effective: Sun February 22, 2026, 3:22 PM
Expires: Mon February 23, 2026, 5:00 AM

* WHAT...Up to 1 1/2 ft of inundation above ground level likely in vulnerable areas near the waterfront and shoreline. * WHERE...Southern Middlesex and Southern New London Counties. * WHEN...From 11 PM this evening to 5 AM EST Monday. * IMPACTS...Widespread minor coastal flooding is expected in the most vulnerable locations near the waterfront and shoreline. Expect up to 1 1/2 ft of inundation above ground level in low lying, vulnerable areas. Some roads and low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront will experience shallow flooding. * ADDITIONAL DETAILS...This water level forecast has been leaned towards a high end scenario, providing a margin of safety. It is highly dependent on timing of windshift from northeast to north storm force winds with respect to the time of high tide. If shift to northerly winds occurs earlier than time of high tide, water levels will fall to the low end or even below the forecast range.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Special Weather Statement issued February 22 at 11:08PM EST by NWS Upton NY

Effective: Sun February 22, 2026, 11:08 PM
Expires: Mon February 23, 2026, 5:00 AM

***Multiple Bands of Heavy Snow to Impact the Area Overnight*** Bands of heavy snow will move across the area through the overnight as low pressure rapidly intensifies to the south. Some of these bands will produce 2 to 3 inches per hour rates. However, in between bands, snowfall rates may drop off to about an inch per hour. Farther to the west, across western portions of the Lower Hudson Valley and interior portions of northeast New Jersey there will be a sharp back edge to the heavy snow and some uncertainty as to how far these bands get. This could impact snowfall totals across this area. Additionally, winds will become a factor as the night progresses. Blizzard conditions are expected and will make travel treacherous and potentially life-threatening.


Blizzard Warning issued February 22 at 1:22PM EST until February 23 at 6:00PM EST by NWS Upton NY

Effective: Sun February 22, 2026, 1:22 PM
Expires: Mon February 23, 2026, 5:00 AM

* WHAT...Blizzard conditions. Additional snow accumulations between 17 and 24 inches. Winds gusting as high as 60 mph. * WHERE...Portions of southern Connecticut and southeast New York. * WHEN...Until 6 PM EST Monday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening. The damaging winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The hazardous conditions will impact the Monday morning and evening commutes. * ADDITIONAL DETAILS...Heaviest snow and strongest winds are expected tonight into Monday.

Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Check local Department of Transportation information services for the latest road conditions. A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay in your vehicle.


Monday, February 23, 2026

Weather Forecast

Blowing snow
32.2°F
25.2°F
30.4°F
84%
1.26 in
75%
69%
37.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.53 μg/m3
PM10: 4.64 μg/m3
Carbon Monoxide: 165.09 μg/m3
Nitrogen Dioxide: 3.73 μg/m3
Sulphur Dioxide: 1.92 μg/m3
Ozone: 87.52 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

Sunny
31.1°F
16.7°F
24.1°F
67%
0 in
0%
0%
18.6 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 3.9 μg/m3
PM10: 4.61 μg/m3
Carbon Monoxide: 169.57 μg/m3
Nitrogen Dioxide: 4.03 μg/m3
Sulphur Dioxide: 2.1 μg/m3
Ozone: 83.8 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

Wednesday, February 25, 2026

Weather Forecast

Moderate or heavy snow showers
36.7°F
15.3°F
27.6°F
81%
0.6 in
89%
0%
15.9 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 6.77 μg/m3
PM10: 8.11 μg/m3
Carbon Monoxide: 223.17 μg/m3
Nitrogen Dioxide: 8.28 μg/m3
Sulphur Dioxide: 2.81 μg/m3
Ozone: 76.56 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 12:01 AM
Sunset: 5:34 PM
Daylight: 11 hrs 5 mins
Moonrise: 10:58 AM
Moon Transit: 7:11 PM
Moonset: 2:20 AM
Moon Phase: First Quarter
Moon Illumination: 62.3%

Best Times for Fishing or Hunting

Major Periods

8:39 AM - 11:09 AM
6:41 PM - 9:11 PM

Minor Periods

10:28 AM - 11:58 AM
1:50 AM - 3:20 AM

Action Rating: 2 out of 5

Thursday, February 26, 2026

Weather Forecast

Moderate rain
38.1°F
31.5°F
35.7°F
94%
0.41 in
68%
7%
26.4 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 6.31 μg/m3
PM10: 6.56 μg/m3
Carbon Monoxide: 227.39 μg/m3
Nitrogen Dioxide: 11.13 μg/m3
Sulphur Dioxide: 2.5 μg/m3
Ozone: 73.12 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 12:01 AM
Sunset: 5:35 PM
Daylight: 11 hrs 8 mins
Moonrise: 12:03 AM
Moon Transit: 8:13 PM
Moonset: 3:24 AM
Moon Phase: First Quarter
Moon Illumination: 72.9%

Best Times for Fishing or Hunting

Major Periods

9:42 AM - 12:12 AM
7:43 PM - 10:13 PM

Minor Periods

11:33 AM - 1:03 PM
2:54 AM - 4:24 AM

Action Rating: 2 out of 5

Friday, February 27, 2026

Weather Forecast

Moderate rain
43.2°F
30.4°F
40.3°F
87%
0.51 in
89%
0%
27.7 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 7.49 μg/m3
PM10: 10.01 μg/m3
Carbon Monoxide: 183.14 μg/m3
Nitrogen Dioxide: 5.22 μg/m3
Sulphur Dioxide: 1.7 μg/m3
Ozone: 84.69 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 12:01 AM
Sunset: 5:37 PM
Daylight: 11 hrs 11 mins
Moonrise: 1:16 PM
Moon Transit: 9:13 PM
Moonset: 4:17 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.3%

Best Times for Fishing or Hunting

Major Periods

10:43 AM - 1:13 PM
8:43 PM - 11:13 PM

Minor Periods

12:46 AM - 2:16 PM
3:47 AM - 5:17 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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