Water Temperature of Mystic Harbor in Mystic, CT

Current Water Temperature

47.5°F

Measurement Time: Wednesday, April 5, 2023, 8:00 AM EDT

Temperature Locations

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Local Points of Interest

Mason Island

Mystic Harbor

Station Name: MYSTIC HARBOR AT SAFE HARBOR MARINA NR MYSTIC, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
99 Roseleah Dr
Mystic, CT 06355
New London County

GPS Coordinates: 41.3464722, -71.9688611

Nearby Water Temperatures

Mystic River, Mystic, CT (1 mi)
Mystic River, Noank, CT (1.5 mi)
Mystic River, Old Mystic, CT (2.2 mi)
Thames River, Groton, CT (5.9 mi)
Thames River, New London, CT (6.8 mi)
Pawcatuck River, Westerly, RI (7.5 mi)
Yantic River, Norwich, CT (16.7 mi)
Connecticut River, Old Lyme, CT (19.7 mi)
East Branch Eightmile River, Lyme, CT (19.8 mi)
Eightmile River, East Haddam, CT (20 mi)
Fort Pond Bay, Montauk, NY (20.6 mi)
Orient Harbor, Orient, NY (22.8 mi)
Connecticut River, Middletown, CT (33.1 mi)
Natchaug River, Chaplin, CT (33.2 mi)
Great Harbor, North Kingstown, RI (33.4 mi)

Weather for Mystic, Connecticut

Current Weather

37.9°F
Light rain
Light rain
28.1°F
37°F
85%
WSW 18.6 mph
30.6 mph
29.7°F
32.5°F
0 in
100%
9 mi
1018 mbar
0

Five Day Weather Forecast

Partly Cloudy
Thu
H: 46°F
L: 35°F
Partly Cloudy
Fri
H: 37°F
L: 14°F
Sunny
Sat
H: 19°F
L: 9°F
Moderate or heavy snow showers
Sun
H: 18°F
L: 11°F
Heavy snow
Mon
H: 28°F
L: 18°F

Air Quality

AQI: 1 - Good
PM2.5: 8.65 μg/m3
PM10: 8.95 μg/m3
Carbon Monoxide: 210.85 μg/m3
Nitrogen Dioxide: 13.75 μg/m3
Sulphur Dioxide: 4.65 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 12:00 AM
Sunset: 4:52 PM
Daylight: 9 hrs 45 mins
Moonrise: 9:08 AM
Moon Transit: 12:00 AM
Moonset: 9:08 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:38 AM - 7:08 AM

Minor Periods

8:38 PM - 10:08 PM
8:38 AM - 10:08 AM

Action Rating: 3 out of 5

Thursday, January 22, 2026

Weather Forecast

Partly Cloudy
46.4°F
35.1°F
39°F
73%
0 in
0%
0%
22.1 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 7.41 μg/m3
PM10: 8.86 μg/m3
Carbon Monoxide: 193.01 μg/m3
Nitrogen Dioxide: 8.64 μg/m3
Sulphur Dioxide: 3.88 μg/m3
Ozone: 74.12 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 12:00 AM
Sunset: 4:52 PM
Daylight: 9 hrs 45 mins
Moonrise: 9:08 AM
Moon Transit: 12:00 AM
Moonset: 9:08 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:38 AM - 7:08 AM

Minor Periods

8:38 PM - 10:08 PM
8:38 AM - 10:08 AM

Action Rating: 3 out of 5

Friday, January 23, 2026

Weather Forecast

Partly Cloudy
37.2°F
14.3°F
30.4°F
51%
0 in
0%
0%
20.1 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.87 μg/m3
PM10: 3.95 μg/m3
Carbon Monoxide: 196.61 μg/m3
Nitrogen Dioxide: 7.49 μg/m3
Sulphur Dioxide: 3.11 μg/m3
Ozone: 72.6 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 12:00 AM
Sunset: 4:53 PM
Daylight: 9 hrs 46 mins
Moonrise: 9:29 AM
Moon Transit: 9:54 AM
Moonset: 10:17 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

5:23 AM - 7:53 AM
9:24 AM - 11:54 AM

Minor Periods

9:47 PM - 11:17 PM
8:59 AM - 10:29 AM

Action Rating: 2 out of 5

Saturday, January 24, 2026

Weather Forecast

Sunny
18.7°F
9°F
14.7°F
41%
0 in
0%
0%
22.1 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 2.43 μg/m3
PM10: 2.56 μg/m3
Carbon Monoxide: 169.01 μg/m3
Nitrogen Dioxide: 3.72 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 73.28 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:00 AM
Sunset: 4:54 PM
Daylight: 9 hrs 48 mins
Moonrise: 9:51 AM
Moon Transit: 4:32 PM
Moonset: 11:28 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

6:08 AM - 8:38 AM
4:02 PM - 6:32 PM

Minor Periods

12:00 AM - 12:00 AM
9:21 AM - 10:51 AM

Action Rating: 2 out of 5

Sunday, January 25, 2026

Weather Forecast

Moderate or heavy snow showers
18.4°F
10.5°F
14.6°F
52%
0.13 in
71%
33%
14.5 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.93 μg/m3
PM10: 3.15 μg/m3
Carbon Monoxide: 187.9 μg/m3
Nitrogen Dioxide: 6.73 μg/m3
Sulphur Dioxide: 1.84 μg/m3
Ozone: 70.64 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 12:00 AM
Sunset: 4:56 PM
Daylight: 9 hrs 50 mins
Moonrise: 10:16 AM
Moon Transit: 5:22 PM
Moonset: 12:28 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

6:56 AM - 9:26 AM
4:52 PM - 7:22 PM

Minor Periods

9:46 AM - 11:16 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Monday, January 26, 2026

Weather Forecast

Heavy snow
28.4°F
18.1°F
20.9°F
91%
0.23 in
81%
64%
17 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.61 μg/m3
PM10: 3.33 μg/m3
Carbon Monoxide: 156.27 μg/m3
Nitrogen Dioxide: 3.6 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 77.77 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 12:00 AM
Sunset: 4:57 PM
Daylight: 9 hrs 52 mins
Moonrise: 10:45 AM
Moon Transit: 6:15 PM
Moonset: 12:43 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

7:47 AM - 10:17 AM
5:45 PM - 8:15 PM

Minor Periods

10:15 AM - 11:45 AM
12:13 AM - 1:43 AM

Action Rating: 2 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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