Water Temperature of the Mystic River in Mystic, CT

Current Water Temperature

49.3°F

Measurement Time: Monday, April 10, 2023, 5:18 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

57.7°F
Clear
Clear
46.9°F
57.7°F
69%
NNE 6.3 mph
13.1 mph
56.8°F
47.5°F
0 in
0%
6 mi
1015 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 84°F
L: 57°F
Sunny
Mon
H: 75°F
L: 58°F
Sunny
Tue
H: 75°F
L: 65°F
Light rain shower
Wed
H: 69°F
L: 63°F
Patchy rain nearby
Thu
H: 74°F
L: 63°F

Air Quality

AQI: 1 - Good
PM2.5: 4.2 μg/m3
PM10: 4.9 μg/m3
Carbon Monoxide: 121 μg/m3
Nitrogen Dioxide: 7.8 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 73 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:54 AM
Sunset: 8:11 PM
Daylight: 14 hrs 34 mins
Moonrise: 6:40 PM
Moon Transit: 10:58 PM
Moonset: 2:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

12:31 AM - 3:01 PM
12:00 AM - 12:00 AM

Minor Periods

6:10 PM - 7:40 PM
1:53 AM - 3:23 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
83.8°F
56.5°F
67.1°F
62%
0 in
4%
0%
8.1 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 9.15 μg/m3
PM10: 11.28 μg/m3
Carbon Monoxide: 121.08 μg/m3
Nitrogen Dioxide: 5.55 μg/m3
Sulphur Dioxide: 0.51 μg/m3
Ozone: 104.46 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:54 AM
Sunset: 8:11 PM
Daylight: 14 hrs 34 mins
Moonrise: 6:40 PM
Moon Transit: 10:58 PM
Moonset: 2:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

12:31 AM - 3:01 PM
12:00 AM - 12:00 AM

Minor Periods

6:10 PM - 7:40 PM
1:53 AM - 3:23 AM

Action Rating: 2 out of 5

Monday, July 27, 2026

Weather Forecast

Sunny
75°F
58.2°F
67.1°F
66%
0 in
5%
0%
8.9 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 13.99 μg/m3
PM10: 17.17 μg/m3
Carbon Monoxide: 132.58 μg/m3
Nitrogen Dioxide: 5.91 μg/m3
Sulphur Dioxide: 0.66 μg/m3
Ozone: 88.58 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 12:54 AM
Sunset: 8:10 PM
Daylight: 14 hrs 32 mins
Moonrise: 7:22 PM
Moon Transit: 11:48 PM
Moonset: 3:18 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

1:22 PM - 3:52 PM
12:00 AM - 12:00 AM

Minor Periods

6:52 PM - 8:22 PM
2:48 AM - 4:18 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Sunny
75°F
64.9°F
69.8°F
76%
0 in
8%
0%
11.4 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 12.1 μg/m3
PM10: 17.18 μg/m3
Carbon Monoxide: 101.42 μg/m3
Nitrogen Dioxide: 1.8 μg/m3
Sulphur Dioxide: 0.44 μg/m3
Ozone: 109.67 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 12:54 AM
Sunset: 8:09 PM
Daylight: 14 hrs 30 mins
Moonrise: 7:57 PM
Moon Transit: 12:00 AM
Moonset: 4:20 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:12 PM - 4:42 PM

Minor Periods

7:27 PM - 8:57 PM
3:50 AM - 5:20 AM

Action Rating: 4 out of 5

Wednesday, July 29, 2026

Weather Forecast

Light rain shower
68.9°F
63°F
66.8°F
95%
1.34 in
93%
0%
18.1 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 8.13 μg/m3
PM10: 10.42 μg/m3
Carbon Monoxide: 140 μg/m3
Nitrogen Dioxide: 4.45 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 115.75 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 12:54 AM
Sunset: 8:08 PM
Daylight: 14 hrs 28 mins
Moonrise: 8:26 PM
Moon Transit: 12:37 AM
Moonset: 5:24 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:07 AM - 2:37 AM
3:00 PM - 5:30 PM

Minor Periods

7:56 PM - 9:26 PM
4:54 AM - 6:24 AM

Action Rating: 4 out of 5

Thursday, July 30, 2026

Weather Forecast

Patchy rain nearby
73.6°F
63.4°F
67.7°F
82%
0.07 in
68%
0%
17.7 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 1.84 μg/m3
PM10: 1.9 μg/m3
Carbon Monoxide: 182.56 μg/m3
Nitrogen Dioxide: 4.51 μg/m3
Sulphur Dioxide: 0.62 μg/m3
Ozone: 65.44 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 12:54 AM
Sunset: 8:07 PM
Daylight: 14 hrs 26 mins
Moonrise: 8:51 PM
Moon Transit: 1:24 AM
Moonset: 6:31 AM
Moon Phase: Full
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

12:54 AM - 3:24 AM
3:45 PM - 6:15 PM

Minor Periods

8:21 PM - 9:51 PM
6:01 AM - 7:31 AM

Action Rating: 5 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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