Water Temperature of the Thames River in New London, CT

Current Water Temperature

47.8°F

Measurement Time: Saturday, December 6, 2025, 12:54 PM EST

Today's Tides

Low: December 6, 3:43 AM, -0.18 ft
 High: December 6, 9:49 AM, 3.53 ft
Low: December 6, 4:40 PM, -0.46 ft
 High: December 6, 10:14 PM, 2.47 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

41.2°F
Light rain
Conditions: Light rain
Humidity: 82%
Feels Like: 37.6°F
Wind: W 5.4 mph
Wind Gusts: 7.5 mph
Pressure: 29.89 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0.8

Five Day Weather Forecast

Patchy rain nearby
Sat
H: 40°F
L: 27°F
Overcast
Sun
H: 38°F
L: 34°F
Moderate or heavy snow showers
Mon
H: 35°F
L: 21°F
Partly Cloudy
Tue
H: 33°F
L: 20°F
Patchy rain nearby
Wed
H: 47°F
L: 36°F

Air Quality

AQI: 1 - Good
PM2.5: 5.25 μg/m3
PM10: 5.35 μg/m3
Carbon Monoxide: 256.85 μg/m3
Nitrogen Dioxide: 24.65 μg/m3
Sulphur Dioxide: 8.35 μg/m3
Ozone: 49 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 11:39 AM
Sunset: 4:19 PM
Daylight: 9 hrs 19 mins
Moonrise: 5:57 PM
Moon Transit: 12:58 AM
Moonset: 9:10 AM
Moon Phase: Full
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

12:28 AM - 2:58 AM
3:31 PM - 6:01 PM

Minor Periods

5:27 PM - 6:57 PM
8:40 AM - 10:10 AM

Action Rating: 3 out of 5

Saturday, December 6, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 34.3°F
Average Humidity: 86%
Chance of Rain: 87%
Wind: 8.9 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 3.98 μg/m3
PM10: 4.89 μg/m3
Carbon Monoxide: 261.29 μg/m3
Nitrogen Dioxide: 7.68 μg/m3
Sulphur Dioxide: 3.57 μg/m3
Ozone: 73.96 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 11:39 AM
Sunset: 4:19 PM
Daylight: 9 hrs 19 mins
Moonrise: 5:57 PM
Moon Transit: 12:58 AM
Moonset: 9:10 AM
Moon Phase: Full
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

12:28 AM - 2:58 AM
3:31 PM - 6:01 PM

Minor Periods

5:27 PM - 6:57 PM
8:40 AM - 10:10 AM

Action Rating: 3 out of 5

Sunday, December 7, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 35.6°F
Average Humidity: 72%
Chance of Rain: 0%
Wind: 8.5 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 6.61 μg/m3
PM10: 6.83 μg/m3
Carbon Monoxide: 258.49 μg/m3
Nitrogen Dioxide: 11.62 μg/m3
Sulphur Dioxide: 5.83 μg/m3
Ozone: 58.56 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 11:40 AM
Sunset: 4:19 PM
Daylight: 9 hrs 18 mins
Moonrise: 7:14 PM
Moon Transit: 2:03 AM
Moonset: 10:01 AM
Moon Phase: Waning Gibbous
Moon Illumination: 90.5%

Best Times for Fishing or Hunting

Major Periods

1:33 AM - 4:03 AM
4:33 PM - 7:03 PM

Minor Periods

6:44 PM - 8:14 PM
9:31 AM - 11:01 AM

Action Rating: 3 out of 5

Monday, December 8, 2025

Weather Forecast

Conditions: Moderate or heavy snow showers
Average Temperature: 29.3°F
Average Humidity: 67%
Chance of Rain: 80%
Wind: 21 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 3.59 μg/m3
PM10: 3.95 μg/m3
Carbon Monoxide: 223.69 μg/m3
Nitrogen Dioxide: 7 μg/m3
Sulphur Dioxide: 3.85 μg/m3
Ozone: 69.28 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 11:40 AM
Sunset: 4:19 PM
Daylight: 9 hrs 17 mins
Moonrise: 8:31 PM
Moon Transit: 3:03 AM
Moonset: 10:40 AM
Moon Phase: Waning Gibbous
Moon Illumination: 82.8%

Best Times for Fishing or Hunting

Major Periods

2:33 AM - 5:03 AM
5:30 PM - 8:00 PM

Minor Periods

8:01 PM - 9:31 PM
10:10 AM - 11:40 AM

Action Rating: 2 out of 5

Tuesday, December 9, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 26.8°F
Average Humidity: 48%
Chance of Rain: 0%
Wind: 21.7 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 3.63 μg/m3
PM10: 4.67 μg/m3
Carbon Monoxide: 168.67 μg/m3
Nitrogen Dioxide: 3.8 μg/m3
Sulphur Dioxide: 1.66 μg/m3
Ozone: 78.96 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 11:40 AM
Sunset: 4:19 PM
Daylight: 9 hrs 16 mins
Moonrise: 9:44 PM
Moon Transit: 3:57 AM
Moonset: 11:10 AM
Moon Phase: Waning Gibbous
Moon Illumination: 73.5%

Best Times for Fishing or Hunting

Major Periods

3:27 AM - 5:57 AM
6:20 PM - 8:50 PM

Minor Periods

9:14 PM - 10:44 PM
10:40 AM - 12:10 AM

Action Rating: 2 out of 5

Wednesday, December 10, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 41.2°F
Average Humidity: 73%
Chance of Rain: 68%
Wind: 19.9 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 7.5 μg/m3
PM10: 8.4 μg/m3
Carbon Monoxide: 194.45 μg/m3
Nitrogen Dioxide: 10.4 μg/m3
Sulphur Dioxide: 5.8 μg/m3
Ozone: 62.08 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 11:41 AM
Sunset: 4:19 PM
Daylight: 9 hrs 15 mins
Moonrise: 10:53 PM
Moon Transit: 4:45 AM
Moonset: 11:34 AM
Moon Phase: Waning Gibbous
Moon Illumination: 63.0%

Best Times for Fishing or Hunting

Major Periods

4:15 AM - 6:45 AM
7:05 PM - 9:35 PM

Minor Periods

10:23 PM - 11:53 PM
11:04 AM - 12:34 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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