Water Temperature of the Thames River in New London, CT
Current Water Temperature
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, CTSponsored Content
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

Humidity: 83%
Feels Like: 60.1°F
Wind: S 11.2 mph
Wind Gusts: 15.1 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 1.5
Five Day Weather Forecast

Sun
H: 70°F
L: 46°F

Mon
H: 65°F
L: 56°F

Tue
H: 64°F
L: 56°F

Wed
H: 64°F
L: 54°F

Thu
H: 58°F
L: 48°F
Air Quality
Nitrogen Dioxide: 2.25 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 98 μg/m3
Astronomical
Sun Transit: 12:33 AM
Sunset: 6:01 PM
Daylight: 10 hrs 56 mins
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 AM10:43 AM - 1:13 PM
Minor Periods
4:34 PM - 6:04 PM4:42 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.
Weather Forecast
Average Temperature: 58.8°F
Average Humidity: 78%
Wind: 16.8 mph
UV Index: 0.8
Air Quality
Nitrogen Dioxide: 7.76 μg/m3
Sulphur Dioxide: 3.73 μg/m3
Ozone: 75.84 μg/m3
Astronomical
Sun Transit: 12:33 AM
Sunset: 6:01 PM
Daylight: 10 hrs 56 mins
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 AM10:43 AM - 1:13 PM
Minor Periods
4:34 PM - 6:04 PM4:42 AM - 6:12 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 62.1°F
Average Humidity: 90%
Wind: 25.3 mph
UV Index: 0.4
Air Quality
Nitrogen Dioxide: 2.93 μg/m3
Sulphur Dioxide: 1.92 μg/m3
Ozone: 90.08 μg/m3
Astronomical
Sun Transit: 12:33 AM
Sunset: 5:59 PM
Daylight: 10 hrs 53 mins
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 AM11:23 AM - 1:53 PM
Minor Periods
4:53 PM - 6:23 PM5:44 AM - 7:14 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 59.1°F
Average Humidity: 75%
Wind: 16.3 mph
UV Index: 0.8
Air Quality
Nitrogen Dioxide: 7.96 μg/m3
Sulphur Dioxide: 3.29 μg/m3
Ozone: 66.4 μg/m3
Astronomical
Sun Transit: 12:32 AM
Sunset: 5:58 PM
Daylight: 10 hrs 51 mins
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 AM12:05 AM - 2:35 PM
Minor Periods
5:15 PM - 6:45 PM6:46 AM - 8:16 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 60°F
Average Humidity: 72%
Wind: 16.8 mph
UV Index: 0.5
Air Quality
Nitrogen Dioxide: 4.38 μg/m3
Sulphur Dioxide: 3.8 μg/m3
Ozone: 103.16 μg/m3
Astronomical
Sun Transit: 12:32 AM
Sunset: 5:56 PM
Daylight: 10 hrs 48 mins
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 AM12:48 AM - 3:18 PM
Minor Periods
5:39 PM - 7:09 PM7:50 AM - 9:20 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 52.9°F
Average Humidity: 58%
Wind: 19.5 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 10.16 μg/m3
Sulphur Dioxide: 6.55 μg/m3
Ozone: 60.31 μg/m3
Astronomical
Sun Transit: 12:32 AM
Sunset: 5:55 PM
Daylight: 10 hrs 45 mins
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 AM1:34 PM - 4:04 PM
Minor Periods
6:09 PM - 7:39 PM8:53 AM - 10:23 AM
Action Rating: 4 out of 5