Water Temperature of the Thames River in New London, CT

Current Water Temperature

55.9°F

Measurement Time: Saturday, June 6, 2026, 8:06 PM EDT

Today's Tides

 High: June 6, 2:09 AM, 2.7 ft
Low: June 6, 8:45 AM, 0.4 ft
 High: June 6, 2:57 PM, 2.5 ft
Low: June 6, 9:04 PM, 0.9 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

70°F
Sunny
Sunny
70°F
78.7°F
73%
SSW 11.6 mph
24.4 mph
74.3°F
60.6°F
0 in
0%
9 mi
1007 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 90°F
L: 60°F
Patchy rain nearby
Sun
H: 73°F
L: 63°F
Sunny
Mon
H: 70°F
L: 53°F
Sunny
Tue
H: 74°F
L: 59°F
Patchy rain nearby
Wed
H: 74°F
L: 62°F

Air Quality

AQI: 1 - Good
PM2.5: 12.7 μg/m3
PM10: 17.2 μg/m3
Carbon Monoxide: 154 μg/m3
Nitrogen Dioxide: 2.7 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 158 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:47 AM
Sunset: 8:19 PM
Daylight: 15 hrs 4 mins
Moonrise: 12:19 AM
Moon Transit: 5:28 AM
Moonset: 10:47 AM
Moon Phase: Last Quarter
Moon Illumination: 53.9%

Best Times for Fishing or Hunting

Major Periods

4:58 AM - 7:28 AM
7:47 PM - 10:17 PM

Minor Periods

10:17 AM - 11:47 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Air Quality Alert issued June 5 at 10:59PM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Fri June 5, 2026, 10:59 PM
Expires: Sat June 6, 2026, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Southern Fairfield, Southern New Haven, Southern Middlesex, Southern New London. from 11 AM to 11 PM EDT Saturday. An Air Quality Action Day means that Ground Level Ozone 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 June 5 at 10:59PM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Fri June 5, 2026, 10:59 PM
Expires: Sat June 6, 2026, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Northern Fairfield, Northern New Haven, Northern Middlesex, Northern New London. from 11 AM to 11 PM EDT Saturday. An Air Quality Action Day means that Ground Level Ozone 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 June 6 at 2:46AM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Sat June 6, 2026, 2:46 AM
Expires: Sat June 6, 2026, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Northern Fairfield, Northern New Haven, Northern Middlesex, Northern New London. from 11 AM this morning to 11 PM EDT this evening. An Air Quality Action Day means that Ground Level Ozone 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 June 6 at 2:46AM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Sat June 6, 2026, 2:46 AM
Expires: Sat June 6, 2026, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Southern Fairfield, Southern New Haven, Southern Middlesex, Southern New London. from 11 AM this morning to 11 PM EDT this evening. An Air Quality Action Day means that Ground Level Ozone 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 June 6 at 2:57AM EDT by NWS Boston/Norton MA

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Sat June 6, 2026, 2:57 AM
Expires: Sun June 7, 2026, 1:00 AM

The Rhode Island Department of Environmental Management has issued an Air Quality Alert Day for Ground Level Ozone, from 11 AM this morning to 11 PM EDT this evening. An Air Quality Alert day means that Ground Level Ozone concentrations within the region may approach or exceed unhealthy standards. For additional information, please visit the Rhode Island Department of Environmental Management website at: https://dem.ri.gov/


Saturday, June 6, 2026

Weather Forecast

Sunny
90°F
59.9°F
74.2°F
64%
0 in
2%
0%
16.8 mph
8.8


Air Quality

AQI: 2 - Moderate
PM2.5: 18.41 μg/m3
PM10: 23.08 μg/m3
Carbon Monoxide: 157.08 μg/m3
Nitrogen Dioxide: 4.5 μg/m3
Sulphur Dioxide: 0.72 μg/m3
Ozone: 139.33 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:47 AM
Sunset: 8:19 PM
Daylight: 15 hrs 4 mins
Moonrise: 12:19 AM
Moon Transit: 5:28 AM
Moonset: 10:47 AM
Moon Phase: Last Quarter
Moon Illumination: 53.9%

Best Times for Fishing or Hunting

Major Periods

4:58 AM - 7:28 AM
7:47 PM - 10:17 PM

Minor Periods

10:17 AM - 11:47 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, June 7, 2026

Weather Forecast

Patchy rain nearby
73.3°F
63°F
67.4°F
77%
0.08 in
73%
0%
16.3 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 4.14 μg/m3
PM10: 4.68 μg/m3
Carbon Monoxide: 140.21 μg/m3
Nitrogen Dioxide: 5.37 μg/m3
Sulphur Dioxide: 0.41 μg/m3
Ozone: 95.63 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:47 AM
Sunset: 8:20 PM
Daylight: 15 hrs 5 mins
Moonrise: 12:42 AM
Moon Transit: 6:11 AM
Moonset: 11:52 AM
Moon Phase: Last Quarter
Moon Illumination: 42.6%

Best Times for Fishing or Hunting

Major Periods

5:41 AM - 8:11 AM
8:31 PM - 11:01 PM

Minor Periods

11:22 AM - 12:52 AM
12:12 AM - 1:42 AM

Action Rating: 4 out of 5

Monday, June 8, 2026

Weather Forecast

Sunny
70.1°F
53.3°F
62.4°F
63%
0 in
1%
0%
12.1 mph
8.6


Air Quality

AQI: 1 - Good
PM2.5: 4.74 μg/m3
PM10: 5.73 μg/m3
Carbon Monoxide: 125.58 μg/m3
Nitrogen Dioxide: 5.73 μg/m3
Sulphur Dioxide: 0.41 μg/m3
Ozone: 77.08 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:47 AM
Sunset: 8:20 PM
Daylight: 15 hrs 6 mins
Moonrise: 1:03 AM
Moon Transit: 6:55 AM
Moonset: 12:58 AM
Moon Phase: Last Quarter
Moon Illumination: 31.6%

Best Times for Fishing or Hunting

Major Periods

6:25 AM - 8:55 AM
9:14 PM - 11:44 PM

Minor Periods

12:28 AM - 1:58 PM
12:33 AM - 2:03 AM

Action Rating: 2 out of 5

Tuesday, June 9, 2026

Weather Forecast

Sunny
74.4°F
58.5°F
65.7°F
60%
0 in
1%
0%
15.4 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 6.34 μg/m3
PM10: 9.2 μg/m3
Carbon Monoxide: 123.48 μg/m3
Nitrogen Dioxide: 4.33 μg/m3
Sulphur Dioxide: 0.48 μg/m3
Ozone: 75.67 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:47 AM
Sunset: 8:21 PM
Daylight: 15 hrs 6 mins
Moonrise: 1:24 AM
Moon Transit: 6:27 AM
Moonset: 2:07 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%

Best Times for Fishing or Hunting

Major Periods

5:57 AM - 8:27 AM
5:57 AM - 8:27 AM

Minor Periods

1:37 PM - 3:07 PM
12:54 AM - 2:24 AM

Action Rating: 2 out of 5

Wednesday, June 10, 2026

Weather Forecast

Patchy rain nearby
74.3°F
62.2°F
67°F
81%
0.02 in
73%
0%
13.4 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 8.91 μg/m3
PM10: 13.28 μg/m3
Carbon Monoxide: 146.89 μg/m3
Nitrogen Dioxide: 2.31 μg/m3
Sulphur Dioxide: 0.47 μg/m3
Ozone: 85.44 μg/m3

Astronomical

Sunrise: 5:14 AM
Sun Transit: 12:47 AM
Sunset: 8:22 PM
Daylight: 15 hrs 7 mins
Moonrise: 1:46 AM
Moon Transit: 8:25 AM
Moonset: 3:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.1%

Best Times for Fishing or Hunting

Major Periods

7:55 AM - 10:25 AM
12:00 AM - 12:00 AM

Minor Periods

2:48 PM - 4:18 PM
1:16 AM - 2:46 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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