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

12.4°F
Clear
Clear
-3.8°F
8°F
56%
NNE 15.4 mph
21.4 mph
-5°F
-1.9°F
0 in
0%
9 mi
1015 mbar
0

Five Day Weather Forecast

Overcast
Sun
H: 26°F
L: 7°F
Cloudy
Mon
H: 35°F
L: 12°F
Sunny
Tue
H: 33°F
L: 17°F
Partly Cloudy
Wed
H: 31°F
L: 17°F
Partly Cloudy
Thu
H: 26°F
L: 9°F

Air Quality

PM2.5: 4.25 μg/m3
PM10: 4.95 μg/m3
Carbon Monoxide: 177.85 μg/m3
Nitrogen Dioxide: 6.25 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 65 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:01 AM
Sunset: 5:04 PM
Daylight: 10 hrs 5 mins
Moonrise: 4:53 PM
Moon Transit: 12:00 AM
Moonset: 7:01 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:52 PM - 4:22 PM

Minor Periods

4:23 PM - 5:53 PM
6:31 AM - 8:01 AM

Action Rating: 4 out of 5

Cold Weather Advisory issued January 31 at 1:10PM EST until February 1 at 10:00AM EST by NWS Upton NY

Effective: Sat January 31, 2026, 1:10 PM
Expires: Sun February 1, 2026, 2:00 AM

* WHAT...Very cold wind chills as low as 10 to 15 below. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...Until 10 AM EST Sunday. * IMPACTS...The cold wind chills could result in hypothermia if precautions are not taken.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Cold Weather Advisory issued January 31 at 12:19PM EST until February 1 at 10:00AM EST by NWS Boston/Norton MA

Effective: Sat January 31, 2026, 12:19 PM
Expires: Sun February 1, 2026, 1:30 AM

* WHAT...Very cold wind chills as low as 10 to 15 below expected. * WHERE...Franklin County, Hampshire County, Hampden County, Hartford CT, Tolland CT, and Windham CT. * WHEN...From 10 PM this evening to 10 AM EST Sunday. * IMPACTS...The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.
Sunday, February 1, 2026

Weather Forecast

Overcast
26.1°F
6.6°F
18.3°F
68%
0 in
0%
9%
21.3 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.13 μg/m3
PM10: 4.58 μg/m3
Carbon Monoxide: 186.89 μg/m3
Nitrogen Dioxide: 7.58 μg/m3
Sulphur Dioxide: 1.79 μg/m3
Ozone: 69.84 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:01 AM
Sunset: 5:04 PM
Daylight: 10 hrs 5 mins
Moonrise: 4:53 PM
Moon Transit: 12:00 AM
Moonset: 7:01 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:52 PM - 4:22 PM

Minor Periods

4:23 PM - 5:53 PM
6:31 AM - 8:01 AM

Action Rating: 4 out of 5

Monday, February 2, 2026

Weather Forecast

Cloudy
34.5°F
12.2°F
21.3°F
64%
0 in
0%
0%
12.1 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.84 μg/m3
PM10: 5.29 μg/m3
Carbon Monoxide: 183.17 μg/m3
Nitrogen Dioxide: 7.12 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 79.88 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:01 AM
Sunset: 5:05 PM
Daylight: 10 hrs 7 mins
Moonrise: 6:09 PM
Moon Transit: 12:19 AM
Moonset: 7:31 AM
Moon Phase: Full
Moon Illumination: 99.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:44 PM - 5:14 PM

Minor Periods

5:39 PM - 7:09 PM
7:01 AM - 8:31 AM

Action Rating: 5 out of 5

Tuesday, February 3, 2026

Weather Forecast

Sunny
32.5°F
17.1°F
24.8°F
72%
0 in
0%
0%
10.7 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 6.56 μg/m3
PM10: 6.73 μg/m3
Carbon Monoxide: 213.29 μg/m3
Nitrogen Dioxide: 9.51 μg/m3
Sulphur Dioxide: 2.61 μg/m3
Ozone: 73.32 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:01 AM
Sunset: 5:07 PM
Daylight: 10 hrs 9 mins
Moonrise: 7:20 PM
Moon Transit: 1:09 AM
Moonset: 7:57 AM
Moon Phase: Full
Moon Illumination: 96.3%

Best Times for Fishing or Hunting

Major Periods

12:39 AM - 3:09 AM
3:31 PM - 6:01 PM

Minor Periods

6:50 PM - 8:20 PM
7:27 AM - 8:57 AM

Action Rating: 4 out of 5

Wednesday, February 4, 2026

Weather Forecast

Partly Cloudy
30.7°F
16.6°F
25°F
85%
0 in
0%
0%
10.7 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 6.46 μg/m3
PM10: 6.46 μg/m3
Carbon Monoxide: 268.73 μg/m3
Nitrogen Dioxide: 10.19 μg/m3
Sulphur Dioxide: 2.51 μg/m3
Ozone: 59.54 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:01 AM
Sunset: 5:08 PM
Daylight: 10 hrs 12 mins
Moonrise: 8:28 PM
Moon Transit: 1:55 AM
Moonset: 8:19 AM
Moon Phase: Full
Moon Illumination: 90.9%

Best Times for Fishing or Hunting

Major Periods

1:25 AM - 3:55 AM
4:16 PM - 6:46 PM

Minor Periods

7:58 PM - 9:28 PM
7:49 AM - 9:19 AM

Action Rating: 3 out of 5

Thursday, February 5, 2026

Weather Forecast

Partly Cloudy
26.3°F
9.4°F
15.8°F
83%
0 in
0%
0%
12.8 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 12:01 AM
Sunset: 5:09 PM
Daylight: 10 hrs 14 mins
Moonrise: 9:34 PM
Moon Transit: 2:39 AM
Moonset: 8:40 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

2:09 AM - 4:39 AM
4:59 PM - 7:29 PM

Minor Periods

9:04 PM - 10:34 PM
8:10 AM - 9:40 AM

Action Rating: 3 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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