Water Temperature of the Mystic River in Mystic, CT

Current Water Temperature

49.3°F

Measurement Time: Monday, April 10, 2023, 5:24 AM EDT

Temperature Locations

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Local Points of Interest

Mystic Seaport

Mystic River

Station Name: MYSTIC RIVER AT MYSTIC SEAPORT NEAR MYSTIC, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
93 Pearl St
Mystic, CT 06355
New London County

GPS Coordinates: 41.3614722, -71.96727778

Nearby Water Temperatures

Mystic Harbor, Mystic, CT (1 mi)
Mystic River, Old Mystic, CT (1.1 mi)
Mystic River, Noank, CT (2.5 mi)
Thames River, Groton, CT (6 mi)
Thames River, New London, CT (6.7 mi)
Pawcatuck River, Westerly, RI (7.1 mi)
Yantic River, Norwich, CT (15.8 mi)
East Branch Eightmile River, Lyme, CT (19.6 mi)
Eightmile River, East Haddam, CT (19.7 mi)
Connecticut River, Old Lyme, CT (19.9 mi)
Fort Pond Bay, Montauk, NY (21.6 mi)
Orient Harbor, Orient, NY (23.5 mi)
Natchaug River, Chaplin, CT (32.2 mi)
Wilbur Hollow Brook, Clayville, RI (32.7 mi)
Hemlock Brook, Foster, RI (32.7 mi)

Weather for Mystic, Connecticut

Current Weather

14.2°F
Partly cloudy
Partly cloudy
-1.2°F
14.8°F
63%
WNW 14.8 mph
23 mph
1.8°F
4°F
0 in
50%
9 mi
1015 mbar
0

Five Day Weather Forecast

Light freezing rain
Tue
H: 26°F
L: 4°F
Partly Cloudy
Wed
H: 26°F
L: 2°F
Sunny
Thu
H: 28°F
L: 13°F
Sunny
Fri
H: 21°F
L: 10°F
Partly Cloudy
Sat
H: 23°F
L: -0°F

Air Quality

AQI: 1 - Good
PM2.5: 11.45 μg/m3
PM10: 11.65 μg/m3
Carbon Monoxide: 242.85 μg/m3
Nitrogen Dioxide: 7.45 μg/m3
Sulphur Dioxide: 3.05 μg/m3
Ozone: 67 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 12:00 AM
Sunset: 4:58 PM
Daylight: 9 hrs 54 mins
Moonrise: 11:21 AM
Moon Transit: 7:13 PM
Moonset: 2:00 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

8:44 AM - 11:14 AM
6:43 PM - 9:13 PM

Minor Periods

10:51 AM - 12:21 AM
1:30 AM - 3:00 AM

Action Rating: 2 out of 5

Tuesday, January 27, 2026

Weather Forecast

Light freezing rain
25.5°F
3.9°F
15.6°F
60%
0.01 in
88%
3%
22.4 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 5.19 μg/m3
PM10: 5.34 μg/m3
Carbon Monoxide: 206.29 μg/m3
Nitrogen Dioxide: 7.82 μg/m3
Sulphur Dioxide: 2.95 μg/m3
Ozone: 72.8 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 12:00 AM
Sunset: 4:58 PM
Daylight: 9 hrs 54 mins
Moonrise: 11:21 AM
Moon Transit: 7:13 PM
Moonset: 2:00 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

8:44 AM - 11:14 AM
6:43 PM - 9:13 PM

Minor Periods

10:51 AM - 12:21 AM
1:30 AM - 3:00 AM

Action Rating: 2 out of 5

Wednesday, January 28, 2026

Weather Forecast

Partly Cloudy
25.5°F
1.8°F
15.1°F
62%
0 in
0%
0%
14.1 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 9.07 μg/m3
PM10: 9.23 μg/m3
Carbon Monoxide: 244.93 μg/m3
Nitrogen Dioxide: 7.69 μg/m3
Sulphur Dioxide: 3.17 μg/m3
Ozone: 67.56 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 12:00 AM
Sunset: 4:59 PM
Daylight: 9 hrs 56 mins
Moonrise: 12:08 AM
Moon Transit: 8:16 PM
Moonset: 3:17 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.1%

Best Times for Fishing or Hunting

Major Periods

9:44 AM - 12:14 AM
7:46 PM - 10:16 PM

Minor Periods

11:38 AM - 1:08 PM
2:47 AM - 4:17 AM

Action Rating: 2 out of 5

Thursday, January 29, 2026

Weather Forecast

Sunny
27.9°F
13.3°F
20.7°F
60%
0 in
0%
0%
15.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 6.28 μg/m3
PM10: 6.33 μg/m3
Carbon Monoxide: 235.69 μg/m3
Nitrogen Dioxide: 7.85 μg/m3
Sulphur Dioxide: 2.4 μg/m3
Ozone: 67.36 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 12:01 AM
Sunset: 5:00 PM
Daylight: 9 hrs 58 mins
Moonrise: 1:07 PM
Moon Transit: 9:20 PM
Moonset: 4:30 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.7%

Best Times for Fishing or Hunting

Major Periods

10:49 AM - 1:19 PM
8:50 PM - 11:20 PM

Minor Periods

12:37 AM - 2:07 PM
4:00 AM - 5:30 AM

Action Rating: 2 out of 5

Friday, January 30, 2026

Weather Forecast

Sunny
20.8°F
10.2°F
15.6°F
58%
0 in
0%
0%
17 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 3.31 μg/m3
PM10: 3.38 μg/m3
Carbon Monoxide: 178.88 μg/m3
Nitrogen Dioxide: 4.57 μg/m3
Sulphur Dioxide: 1.56 μg/m3
Ozone: 71.96 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 12:01 AM
Sunset: 5:02 PM
Daylight: 10 hrs 1 mins
Moonrise: 2:18 PM
Moon Transit: 10:24 PM
Moonset: 5:32 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.4%

Best Times for Fishing or Hunting

Major Periods

11:53 AM - 2:23 PM
12:00 AM - 12:00 AM

Minor Periods

1:48 PM - 3:18 PM
5:02 AM - 6:32 AM

Action Rating: 3 out of 5

Saturday, January 31, 2026

Weather Forecast

Partly Cloudy
23.3°F
-0.3°F
12.9°F
81%
0 in
0%
3%
19 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 2.9 μg/m3
PM10: 3.04 μg/m3
Carbon Monoxide: 183.33 μg/m3
Nitrogen Dioxide: 4.69 μg/m3
Sulphur Dioxide: 1.46 μg/m3
Ozone: 68.54 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 12:01 AM
Sunset: 5:03 PM
Daylight: 10 hrs 3 mins
Moonrise: 3:35 PM
Moon Transit: 11:24 PM
Moonset: 6:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.9%

Best Times for Fishing or Hunting

Major Periods

12:55 AM - 3:25 PM
12:00 AM - 12:00 AM

Minor Periods

3:05 PM - 4:35 PM
5:52 AM - 7:22 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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