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

39.9°F
Partly cloudy
Partly cloudy
32.1°F
40.7°F
55%
WNW 13.6 mph
19.2 mph
33.8°F
33.4°F
0 in
50%
9 mi
1004 mbar
2.1

Five Day Weather Forecast

Patchy rain nearby
Wed
H: 43°F
L: 31°F
Sunny
Thu
H: 39°F
L: 24°F
Sunny
Fri
H: 39°F
L: 18°F
Moderate or heavy snow showers
Sat
H: 44°F
L: 28°F
Sunny
Sun
H: 34°F
L: 28°F

Air Quality

AQI: 1 - Good
PM2.5: 2.25 μg/m3
PM10: 2.25 μg/m3
Carbon Monoxide: 197.85 μg/m3
Nitrogen Dioxide: 7.05 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 12:02 AM
Sunset: 5:17 PM
Daylight: 10 hrs 29 mins
Moonrise: 2:52 AM
Moon Transit: 7:10 AM
Moonset: 11:27 AM
Moon Phase: Last Quarter
Moon Illumination: 20.5%

Best Times for Fishing or Hunting

Major Periods

6:40 AM - 9:10 AM
12:00 AM - 12:00 AM

Minor Periods

10:57 AM - 12:27 AM
2:22 AM - 3:52 AM

Action Rating: 3 out of 5

Special Weather Statement issued February 11 at 2:56AM EST by NWS Upton NY

Effective: Wed February 11, 2026, 2:56 AM
Expires: Wed February 11, 2026, 9:00 AM

Precipitation has moved out of the area. However, many areas continue to see surface temperatures at or slightly below freezing. The residual moisture from the precipitation combined with the cold surface temperatures will result in slick and/or icy surfaces. Motorists are urged to slow down and travel with caution this morning.


Wednesday, February 11, 2026

Weather Forecast

Patchy rain nearby
43°F
30.7°F
35.7°F
78%
0.02 in
86%
3%
16.1 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 10.77 μg/m3
PM10: 12.69 μg/m3
Carbon Monoxide: 230.17 μg/m3
Nitrogen Dioxide: 8.15 μg/m3
Sulphur Dioxide: 2.93 μg/m3
Ozone: 71.32 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 12:02 AM
Sunset: 5:17 PM
Daylight: 10 hrs 29 mins
Moonrise: 2:52 AM
Moon Transit: 7:10 AM
Moonset: 11:27 AM
Moon Phase: Last Quarter
Moon Illumination: 20.5%

Best Times for Fishing or Hunting

Major Periods

6:40 AM - 9:10 AM
12:00 AM - 12:00 AM

Minor Periods

10:57 AM - 12:27 AM
2:22 AM - 3:52 AM

Action Rating: 3 out of 5

Thursday, February 12, 2026

Weather Forecast

Sunny
38.8°F
23.6°F
31°F
67%
0 in
0%
0%
17.2 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 2.23 μg/m3
PM10: 2.25 μg/m3
Carbon Monoxide: 198.57 μg/m3
Nitrogen Dioxide: 4.61 μg/m3
Sulphur Dioxide: 1.92 μg/m3
Ozone: 78.04 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 12:02 AM
Sunset: 5:18 PM
Daylight: 10 hrs 31 mins
Moonrise: 3:48 AM
Moon Transit: 8:02 AM
Moonset: 12:17 AM
Moon Phase: Waning Crescent
Moon Illumination: 12.2%

Best Times for Fishing or Hunting

Major Periods

7:32 AM - 10:02 AM
12:00 AM - 12:00 AM

Minor Periods

11:47 AM - 1:17 PM
3:18 AM - 4:48 AM

Action Rating: 2 out of 5

Friday, February 13, 2026

Weather Forecast

Sunny
39°F
18.3°F
28.5°F
65%
0 in
0%
0%
10.5 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 4.83 μg/m3
PM10: 4.95 μg/m3
Carbon Monoxide: 194.37 μg/m3
Nitrogen Dioxide: 8.09 μg/m3
Sulphur Dioxide: 2.14 μg/m3
Ozone: 82.4 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 12:02 AM
Sunset: 5:19 PM
Daylight: 10 hrs 34 mins
Moonrise: 4:38 AM
Moon Transit: 8:54 AM
Moonset: 1:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 5.8%

Best Times for Fishing or Hunting

Major Periods

8:24 AM - 10:54 AM
12:00 AM - 12:00 AM

Minor Periods

12:44 AM - 2:14 PM
4:08 AM - 5:38 AM

Action Rating: 2 out of 5

Saturday, February 14, 2026

Weather Forecast

Moderate or heavy snow showers
43.9°F
27.9°F
32.5°F
79%
0.15 in
67%
12%
12.3 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 11.9 μg/m3
PM10: 11.97 μg/m3
Carbon Monoxide: 238 μg/m3
Nitrogen Dioxide: 21.93 μg/m3
Sulphur Dioxide: 4.85 μg/m3
Ozone: 59.44 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 12:02 AM
Sunset: 5:20 PM
Daylight: 10 hrs 36 mins
Moonrise: 5:20 AM
Moon Transit: 9:46 AM
Moonset: 2:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

1:49 PM - 3:19 PM
4:50 AM - 6:20 AM

Action Rating: 3 out of 5

Sunday, February 15, 2026

Weather Forecast

Sunny
33.7°F
27.5°F
29.8°F
71%
0 in
0%
0%
12.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.97 μg/m3
PM10: 2 μg/m3
Carbon Monoxide: 176.24 μg/m3
Nitrogen Dioxide: 3.7 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 83.23 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 12:01 AM
Sunset: 5:22 PM
Daylight: 10 hrs 39 mins
Moonrise: 5:55 AM
Moon Transit: 10:37 AM
Moonset: 3:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:11 AM - 2:41 AM
10:07 AM - 12:37 AM

Minor Periods

2:57 PM - 4:27 PM
5:25 AM - 6:55 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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