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

25°F
Partly Cloudy
Partly Cloudy
11.5°F
23.3°F
32%
NW 17.7 mph
20.3 mph
9.1°F
5.2°F
0 in
0%
9 mi
1003 mbar
1.1

Five Day Weather Forecast

Moderate or heavy snow showers
Thu
H: 32°F
L: 19°F
Sunny
Fri
H: 31°F
L: 19°F
Partly Cloudy
Sat
H: 32°F
L: 28°F
Partly Cloudy
Sun
H: 35°F
L: 27°F
Sunny
Mon
H: 27°F
L: 17°F

Air Quality

AQI: 1 - Good
PM2.5: 1.85 μg/m3
PM10: 2.05 μg/m3
Carbon Monoxide: 167.85 μg/m3
Nitrogen Dioxide: 3.45 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 82 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:51 AM
Sunset: 4:30 PM
Daylight: 9 hrs 16 mins
Moonrise: 2:21 PM
Moon Transit: 10:33 PM
Moonset: 5:36 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 2:30 PM
12:00 AM - 12:00 AM

Minor Periods

1:51 PM - 3:21 PM
5:06 AM - 6:36 AM

Action Rating: 2 out of 5

Winter Weather Advisory issued January 1 at 1:51AM EST until January 1 at 10:00AM EST by NWS Upton NY

Effective: Thu January 1, 2026, 1:51 AM
Expires: Thu January 1, 2026, 10:00 AM

* WHAT...Snow. Total snow accumulations between 1 and 3 inches. * WHERE...New London County. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Thursday morning commute.

Slow down and use caution while traveling. Check local Department of Transportation information services for the latest road conditions.


Winter Weather Advisory issued January 1 at 6:28AM EST until January 1 at 1:00PM EST by NWS Boston/Norton MA

Effective: Thu January 1, 2026, 6:28 AM
Expires: Thu January 1, 2026, 1:00 PM

* WHAT...Snow. Additional snow accumulations up to one inch. Winds gusting as high as 35 mph. * WHERE...Portions of northern Connecticut, central, eastern, and southeastern Massachusetts, and northern and southern Rhode Island. * WHEN...Until 1 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute.

Slow down and use caution while traveling.
Thursday, January 1, 2026

Weather Forecast

Moderate or heavy snow showers
32.4°F
19.4°F
26.2°F
64%
0.21 in
74%
37%
20.4 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 3.56 μg/m3
PM10: 3.88 μg/m3
Carbon Monoxide: 181.09 μg/m3
Nitrogen Dioxide: 6.19 μg/m3
Sulphur Dioxide: 4.64 μg/m3
Ozone: 69.76 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:51 AM
Sunset: 4:30 PM
Daylight: 9 hrs 16 mins
Moonrise: 2:21 PM
Moon Transit: 10:33 PM
Moonset: 5:36 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 2:30 PM
12:00 AM - 12:00 AM

Minor Periods

1:51 PM - 3:21 PM
5:06 AM - 6:36 AM

Action Rating: 2 out of 5

Friday, January 2, 2026

Weather Forecast

Sunny
31.3°F
18.7°F
24.7°F
55%
0 in
0%
0%
17.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.21 μg/m3
PM10: 3.26 μg/m3
Carbon Monoxide: 177.13 μg/m3
Nitrogen Dioxide: 5.87 μg/m3
Sulphur Dioxide: 2.72 μg/m3
Ozone: 75.68 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:52 AM
Sunset: 4:30 PM
Daylight: 9 hrs 17 mins
Moonrise: 3:28 PM
Moon Transit: 11:40 PM
Moonset: 6:48 AM
Moon Phase: Full
Moon Illumination: 99.2%

Best Times for Fishing or Hunting

Major Periods

1:07 PM - 3:37 PM
12:00 AM - 12:00 AM

Minor Periods

2:58 PM - 4:28 PM
6:18 AM - 7:48 AM

Action Rating: 4 out of 5

Saturday, January 3, 2026

Weather Forecast

Partly Cloudy
32.2°F
27.9°F
30.1°F
60%
0 in
0%
0%
11.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.35 μg/m3
PM10: 3.38 μg/m3
Carbon Monoxide: 209.33 μg/m3
Nitrogen Dioxide: 5.6 μg/m3
Sulphur Dioxide: 2.1 μg/m3
Ozone: 77.64 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:52 AM
Sunset: 4:31 PM
Daylight: 9 hrs 17 mins
Moonrise: 4:44 PM
Moon Transit: 12:00 AM
Moonset: 7:46 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:13 PM - 4:43 PM

Minor Periods

4:14 PM - 5:44 PM
7:16 AM - 8:46 AM

Action Rating: 6 out of 5

Sunday, January 4, 2026

Weather Forecast

Partly Cloudy
35.4°F
27°F
30.5°F
68%
0 in
0%
10%
16.1 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.78 μg/m3
PM10: 3.79 μg/m3
Carbon Monoxide: 222.38 μg/m3
Nitrogen Dioxide: 6.04 μg/m3
Sulphur Dioxide: 2.42 μg/m3
Ozone: 72.04 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:52 AM
Sunset: 4:32 PM
Daylight: 9 hrs 18 mins
Moonrise: 6:03 PM
Moon Transit: 12:43 AM
Moonset: 8:31 AM
Moon Phase: Full
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

12:13 AM - 2:43 AM
3:13 PM - 5:43 PM

Minor Periods

5:33 PM - 7:03 PM
8:01 AM - 9:31 AM

Action Rating: 3 out of 5

Monday, January 5, 2026

Weather Forecast

Sunny
27.4°F
17.2°F
22.9°F
57%
0 in
0%
0%
19.2 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.34 μg/m3
PM10: 2.43 μg/m3
Carbon Monoxide: 169.5 μg/m3
Nitrogen Dioxide: 4.26 μg/m3
Sulphur Dioxide: 1.64 μg/m3
Ozone: 69.38 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:53 AM
Sunset: 4:33 PM
Daylight: 9 hrs 19 mins
Moonrise: 7:20 PM
Moon Transit: 1:41 AM
Moonset: 9:06 AM
Moon Phase: Full
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

1:11 AM - 3:41 AM
4:07 PM - 6:37 PM

Minor Periods

6:50 PM - 8:20 PM
8:36 AM - 10:06 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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