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 SeaportMystic 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
-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

Tue
H: 26°F
L: 4°F

Wed
H: 26°F
L: 2°F

Thu
H: 28°F
L: 13°F

Fri
H: 21°F
L: 10°F

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
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
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%
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 AM6:43 PM - 9:13 PM
Minor Periods
10:51 AM - 12:21 AM1:30 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
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
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%
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 AM6:43 PM - 9:13 PM
Minor Periods
10:51 AM - 12:21 AM1:30 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
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
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%
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 AM7:46 PM - 10:16 PM
Minor Periods
11:38 AM - 1:08 PM2:47 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
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
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%
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 PM8:50 PM - 11:20 PM
Minor Periods
12:37 AM - 2:07 PM4:00 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
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
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%
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 PM12:00 AM - 12:00 AM
Minor Periods
1:48 PM - 3:18 PM5:02 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
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
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%
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 PM12:00 AM - 12:00 AM
Minor Periods
3:05 PM - 4:35 PM5:52 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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