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

84.6°F
Sunny
Sunny
74.7°F
83.1°F
33%
SE 4.9 mph
5.7 mph
84.6°F
52.3°F
0 in
0%
6 mi
1012 mbar
8.4

Five Day Weather Forecast

Sunny
Sun
H: 86°F
L: 56°F
Sunny
Mon
H: 74°F
L: 59°F
Sunny
Tue
H: 75°F
L: 67°F
Light rain shower
Wed
H: 69°F
L: 67°F
Light rain shower
Thu
H: 70°F
L: 64°F

Air Quality

AQI: 1 - Good
PM2.5: 11 μg/m3
PM10: 13.8 μg/m3
Carbon Monoxide: 111 μg/m3
Nitrogen Dioxide: 2.1 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 128 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
85.5°F
55.8°F
69.7°F
54%
0 in
2%
0%
8.5 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
74.2°F
59°F
66.9°F
75%
0 in
10%
0%
9.4 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
74.7°F
66.7°F
70.5°F
85%
0.09 in
67%
0%
13.2 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
68.5°F
67.4°F
68.2°F
96%
0.86 in
93%
0%
11.6 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

Light rain shower
70°F
63.5°F
67°F
96%
0.85 in
94%
0%
17.7 mph
5


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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