Water Temperature of Mystic Harbor in Mystic, CT

Current Water Temperature

47.3°F

Measurement Time: Wednesday, April 5, 2023, 7:54 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

48°F
Overcast
Overcast
43.2°F
46.4°F
68%
E 11 mph
12.6 mph
42.5°F
42.8°F
0 in
100%
9 mi
1021 mbar
4.2

Five Day Weather Forecast

Patchy rain nearby
Sun
H: 54°F
L: 41°F
Sunny
Mon
H: 58°F
L: 40°F
Sunny
Tue
H: 57°F
L: 41°F
Partly Cloudy
Wed
H: 58°F
L: 43°F
Moderate rain
Thu
H: 51°F
L: 47°F

Air Quality

AQI: 1 - Good
PM2.5: 9.05 μg/m3
PM10: 9.95 μg/m3
Carbon Monoxide: 182.85 μg/m3
Nitrogen Dioxide: 13.75 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 12:45 AM
Sunset: 7:40 PM
Daylight: 13 hrs 48 mins
Moonrise: 2:46 PM
Moon Transit: 9:24 PM
Moonset: 3:30 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%

Best Times for Fishing or Hunting

Major Periods

11:01 AM - 1:31 PM
8:54 PM - 11:24 PM

Minor Periods

2:16 PM - 3:46 PM
3:00 AM - 4:30 AM

Action Rating: 2 out of 5

Sunday, April 26, 2026

Weather Forecast

Patchy rain nearby
54.3°F
41°F
44.9°F
88%
0.11 in
86%
0%
11.6 mph
4.7


Air Quality

AQI: 1 - Good
PM2.5: 6.9 μg/m3
PM10: 8.47 μg/m3
Carbon Monoxide: 187.41 μg/m3
Nitrogen Dioxide: 7.28 μg/m3
Sulphur Dioxide: 1.81 μg/m3
Ozone: 73.04 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 12:45 AM
Sunset: 7:40 PM
Daylight: 13 hrs 48 mins
Moonrise: 2:46 PM
Moon Transit: 9:24 PM
Moonset: 3:30 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%

Best Times for Fishing or Hunting

Major Periods

11:01 AM - 1:31 PM
8:54 PM - 11:24 PM

Minor Periods

2:16 PM - 3:46 PM
3:00 AM - 4:30 AM

Action Rating: 2 out of 5

Monday, April 27, 2026

Weather Forecast

Sunny
58°F
40°F
49°F
67%
0 in
0%
0%
13.9 mph
6.7


Air Quality

AQI: 1 - Good
PM2.5: 11.13 μg/m3
PM10: 12.34 μg/m3
Carbon Monoxide: 194.25 μg/m3
Nitrogen Dioxide: 17.32 μg/m3
Sulphur Dioxide: 2.53 μg/m3
Ozone: 67.28 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 12:45 AM
Sunset: 7:41 PM
Daylight: 13 hrs 51 mins
Moonrise: 3:52 PM
Moon Transit: 10:07 PM
Moonset: 3:51 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%

Best Times for Fishing or Hunting

Major Periods

11:44 AM - 2:14 PM
12:00 AM - 12:00 AM

Minor Periods

3:22 PM - 4:52 PM
3:21 AM - 4:51 AM

Action Rating: 2 out of 5

Tuesday, April 28, 2026

Weather Forecast

Sunny
56.8°F
41°F
49.1°F
63%
0 in
0%
0%
12.8 mph
7.2


Air Quality

AQI: 1 - Good
PM2.5: 11.55 μg/m3
PM10: 13.17 μg/m3
Carbon Monoxide: 180.81 μg/m3
Nitrogen Dioxide: 19.34 μg/m3
Sulphur Dioxide: 2.4 μg/m3
Ozone: 65.92 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 12:45 AM
Sunset: 7:42 PM
Daylight: 13 hrs 53 mins
Moonrise: 4:57 PM
Moon Transit: 10:49 PM
Moonset: 4:12 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.6%

Best Times for Fishing or Hunting

Major Periods

12:26 AM - 2:56 PM
12:00 AM - 12:00 AM

Minor Periods

4:27 PM - 5:57 PM
3:42 AM - 5:12 AM

Action Rating: 2 out of 5

Wednesday, April 29, 2026

Weather Forecast

Partly Cloudy
57.5°F
42.6°F
50°F
80%
0 in
0%
0%
9.6 mph
3.7


Air Quality

AQI: 1 - Good
PM2.5: 7.72 μg/m3
PM10: 10.02 μg/m3
Carbon Monoxide: 161.79 μg/m3
Nitrogen Dioxide: 8.73 μg/m3
Sulphur Dioxide: 2.23 μg/m3
Ozone: 78.4 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 12:45 AM
Sunset: 7:43 PM
Daylight: 13 hrs 56 mins
Moonrise: 6:01 PM
Moon Transit: 11:31 PM
Moonset: 4:32 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.5%

Best Times for Fishing or Hunting

Major Periods

1:08 PM - 3:38 PM
12:00 AM - 12:00 AM

Minor Periods

5:31 PM - 7:01 PM
4:02 AM - 5:32 AM

Action Rating: 3 out of 5

Thursday, April 30, 2026

Weather Forecast

Moderate rain
51.3°F
46.8°F
48.9°F
95%
0.21 in
89%
0%
14.8 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 9.7 μg/m3
PM10: 14.02 μg/m3
Carbon Monoxide: 145.2 μg/m3
Nitrogen Dioxide: 3.21 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 88.46 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 12:45 AM
Sunset: 7:44 PM
Daylight: 13 hrs 58 mins
Moonrise: 7:05 PM
Moon Transit: 12:00 AM
Moonset: 4:53 AM
Moon Phase: Full
Moon Illumination: 99.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:51 PM - 4:21 PM

Minor Periods

6:35 PM - 8:05 PM
4:23 AM - 5:53 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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