Water Temperature of the Thames River in New London, CT

Current Water Temperature

63.3°F

Measurement Time: Sunday, October 19, 2025, 10:12 AM EDT

Today's Tides

Low: October 19, 2:38 AM, 0.39 ft
 High: October 19, 8:32 AM, 3.10 ft
Low: October 19, 3:16 PM, 0.38 ft
 High: October 19, 8:53 PM, 2.60 ft

Temperature Locations

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Local Points of Interest

Riverside Park; Groton, CT

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Thames River

Station Name: New London
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 26 feet / 8 meters

Sensor Depth: -3.1 feet / -1.0 meters

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 (13.0 mi)
Yantic River, Norwich, CT (13.0 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

60.1°F
Sunny
Conditions: Sunny
Humidity: 83%
Feels Like: 60.1°F
Wind: S 11.2 mph
Wind Gusts: 15.1 mph
Pressure: 30.04 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 1.5

Five Day Weather Forecast

Sunny
Sun
H: 70°F
L: 46°F
Heavy rain
Mon
H: 65°F
L: 56°F
Partly Cloudy
Tue
H: 64°F
L: 56°F
Patchy rain nearby
Wed
H: 64°F
L: 54°F
Sunny
Thu
H: 58°F
L: 48°F

Air Quality

AQI: 1 - Good
PM2.5: 11.05 μg/m3
PM10: 15.55 μg/m3
Carbon Monoxide: 161.85 μg/m3
Nitrogen Dioxide: 2.25 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 98 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 12:33 AM
Sunset: 6:01 PM
Daylight: 10 hrs 56 mins
Moonrise: 5:12 AM
Moon Transit: 11:13 AM
Moonset: 5:04 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 AM
10:43 AM - 1:13 PM

Minor Periods

4:34 PM - 6:04 PM
4:42 AM - 6:12 AM

Action Rating: 3 out of 5

Coastal Flood Statement issued October 19 at 2:51AM EDT until October 20 at 12:00PM EDT by NWS Upton NY

Effective: Sun October 19, 2025, 2:51 AM
Expires: Mon October 20, 2025, 9:30 AM

* WHAT...Up to 1/2 ft of inundation above ground level in the most vulnerable areas near the waterfront and shoreline. * WHERE...Southern Fairfield, Southern New Haven, Southern Middlesex and Southern New London Counties. * WHEN...Monday morning. * IMPACTS...Some water on low lying roads and property. * IMPACTS...Brief minor flooding of the most vulnerable locations near the waterfront and shoreline.

Do not drive through flooded roadways.
Sunday, October 19, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 58.8°F
Average Humidity: 78%
Chance of Rain: 0%
Wind: 16.8 mph
UV Index: 0.8

Air Quality

AQI: 1 - Good
PM2.5: 9.39 μg/m3
PM10: 12.3 μg/m3
Carbon Monoxide: 189.13 μg/m3
Nitrogen Dioxide: 7.76 μg/m3
Sulphur Dioxide: 3.73 μg/m3
Ozone: 75.84 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 12:33 AM
Sunset: 6:01 PM
Daylight: 10 hrs 56 mins
Moonrise: 5:12 AM
Moon Transit: 11:13 AM
Moonset: 5:04 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 AM
10:43 AM - 1:13 PM

Minor Periods

4:34 PM - 6:04 PM
4:42 AM - 6:12 AM

Action Rating: 3 out of 5

Monday, October 20, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 62.1°F
Average Humidity: 90%
Chance of Rain: 89%
Wind: 25.3 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 8.9 μg/m3
PM10: 12.4 μg/m3
Carbon Monoxide: 149.73 μg/m3
Nitrogen Dioxide: 2.93 μg/m3
Sulphur Dioxide: 1.92 μg/m3
Ozone: 90.08 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:33 AM
Sunset: 5:59 PM
Daylight: 10 hrs 53 mins
Moonrise: 6:14 AM
Moon Transit: 11:53 AM
Moonset: 5:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:30 AM - 4:00 AM
11:23 AM - 1:53 PM

Minor Periods

4:53 PM - 6:23 PM
5:44 AM - 7:14 AM

Action Rating: 4 out of 5

Tuesday, October 21, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 59.1°F
Average Humidity: 75%
Chance of Rain: 0%
Wind: 16.3 mph
UV Index: 0.8

Air Quality

AQI: 1 - Good
PM2.5: 3.69 μg/m3
PM10: 4.12 μg/m3
Carbon Monoxide: 169.97 μg/m3
Nitrogen Dioxide: 7.96 μg/m3
Sulphur Dioxide: 3.29 μg/m3
Ozone: 66.4 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 12:32 AM
Sunset: 5:58 PM
Daylight: 10 hrs 51 mins
Moonrise: 7:16 AM
Moon Transit: 12:35 AM
Moonset: 5:45 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

2:11 AM - 4:41 AM
12:05 AM - 2:35 PM

Minor Periods

5:15 PM - 6:45 PM
6:46 AM - 8:16 AM

Action Rating: 4 out of 5

Wednesday, October 22, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 60°F
Average Humidity: 72%
Chance of Rain: 86%
Wind: 16.8 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 11.08 μg/m3
PM10: 14.41 μg/m3
Carbon Monoxide: 159.65 μg/m3
Nitrogen Dioxide: 4.38 μg/m3
Sulphur Dioxide: 3.8 μg/m3
Ozone: 103.16 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 12:32 AM
Sunset: 5:56 PM
Daylight: 10 hrs 48 mins
Moonrise: 8:20 AM
Moon Transit: 1:18 PM
Moonset: 6:09 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

2:53 AM - 5:23 AM
12:48 AM - 3:18 PM

Minor Periods

5:39 PM - 7:09 PM
7:50 AM - 9:20 AM

Action Rating: 4 out of 5

Thursday, October 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 52.9°F
Average Humidity: 58%
Chance of Rain: 0%
Wind: 19.5 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 5.38 μg/m3
PM10: 5.43 μg/m3
Carbon Monoxide: 171.23 μg/m3
Nitrogen Dioxide: 10.16 μg/m3
Sulphur Dioxide: 6.55 μg/m3
Ozone: 60.31 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 12:32 AM
Sunset: 5:55 PM
Daylight: 10 hrs 45 mins
Moonrise: 9:23 AM
Moon Transit: 2:04 PM
Moonset: 6:39 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

3:38 AM - 6:08 AM
1:34 PM - 4:04 PM

Minor Periods

6:09 PM - 7:39 PM
8:53 AM - 10:23 AM

Action Rating: 4 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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