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
Sunny
Sunny
39.3°F
39.1°F
79%
W 2.2 mph
6.7 mph
34.7°F
34°F
0 in
0%
9 mi
1021 mbar
1

Five Day Weather Forecast

Patchy rain nearby
Fri
H: 51°F
L: 33°F
Moderate rain
Sat
H: 52°F
L: 40°F
Overcast
Sun
H: 43°F
L: 36°F
Moderate rain
Mon
H: 51°F
L: 32°F
Light freezing rain
Tue
H: 42°F
L: 29°F

Air Quality

AQI: 1 - Good
PM2.5: 17.95 μg/m3
PM10: 19.15 μg/m3
Carbon Monoxide: 248.85 μg/m3
Nitrogen Dioxide: 17.25 μg/m3
Sulphur Dioxide: 3.35 μg/m3
Ozone: 66 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 10:27 AM
Sunset: 7:00 PM
Daylight: 12 hrs 9 mins
Moonrise: 7:22 AM
Moon Transit: 2:12 PM
Moonset: 9:17 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

3:47 AM - 6:17 AM
1:42 PM - 4:12 PM

Minor Periods

8:47 PM - 10:17 PM
6:52 AM - 8:22 AM

Action Rating: 4 out of 5

Friday, March 20, 2026

Weather Forecast

Patchy rain nearby
50.7°F
33.1°F
40.9°F
83%
0.11 in
79%
0%
20.4 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 11.63 μg/m3
PM10: 14.23 μg/m3
Carbon Monoxide: 214.01 μg/m3
Nitrogen Dioxide: 8.69 μg/m3
Sulphur Dioxide: 2.54 μg/m3
Ozone: 90.4 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 10:27 AM
Sunset: 7:00 PM
Daylight: 12 hrs 9 mins
Moonrise: 7:22 AM
Moon Transit: 2:12 PM
Moonset: 9:17 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

3:47 AM - 6:17 AM
1:42 PM - 4:12 PM

Minor Periods

8:47 PM - 10:17 PM
6:52 AM - 8:22 AM

Action Rating: 4 out of 5

Saturday, March 21, 2026

Weather Forecast

Moderate rain
51.6°F
39.7°F
44.3°F
81%
0.67 in
83%
0%
20.1 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 8.2 μg/m3
PM10: 9.38 μg/m3
Carbon Monoxide: 203.37 μg/m3
Nitrogen Dioxide: 8.91 μg/m3
Sulphur Dioxide: 2.23 μg/m3
Ozone: 87.88 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 12:00 AM
Sunset: 7:01 PM
Daylight: 12 hrs 12 mins
Moonrise: 7:50 AM
Moon Transit: 3:05 PM
Moonset: 10:36 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

4:38 AM - 7:08 AM
2:35 PM - 5:05 PM

Minor Periods

10:06 PM - 11:36 PM
7:20 AM - 8:50 AM

Action Rating: 4 out of 5

Sunday, March 22, 2026

Weather Forecast

Overcast
42.8°F
35.6°F
39.7°F
84%
0 in
0%
0%
18.6 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 12.62 μg/m3
PM10: 15.63 μg/m3
Carbon Monoxide: 215.25 μg/m3
Nitrogen Dioxide: 17.91 μg/m3
Sulphur Dioxide: 2.28 μg/m3
Ozone: 76.84 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 12:00 AM
Sunset: 7:02 PM
Daylight: 12 hrs 14 mins
Moonrise: 8:22 AM
Moon Transit: 4:01 PM
Moonset: 11:54 PM
Moon Phase: Waxing Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

5:32 AM - 8:02 AM
3:31 PM - 6:01 PM

Minor Periods

12:00 AM - 12:00 AM
7:52 AM - 9:22 AM

Action Rating: 2 out of 5

Monday, March 23, 2026

Weather Forecast

Moderate rain
50.5°F
31.8°F
45.6°F
79%
0.4 in
80%
0%
23.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.31 μg/m3
PM10: 3.61 μg/m3
Carbon Monoxide: 221.37 μg/m3
Nitrogen Dioxide: 7.55 μg/m3
Sulphur Dioxide: 1.66 μg/m3
Ozone: 91.16 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 12:00 AM
Sunset: 7:03 PM
Daylight: 12 hrs 17 mins
Moonrise: 9:02 AM
Moon Transit: 5:02 PM
Moonset: 12:54 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

6:31 AM - 9:01 AM
4:32 PM - 7:02 PM

Minor Periods

8:32 AM - 10:02 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Tuesday, March 24, 2026

Weather Forecast

Light freezing rain
41.8°F
29.4°F
33.5°F
66%
0.01 in
80%
3%
13 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.03 μg/m3
PM10: 2.23 μg/m3
Carbon Monoxide: 193.6 μg/m3
Nitrogen Dioxide: 5.75 μg/m3
Sulphur Dioxide: 1.59 μg/m3
Ozone: 89.69 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 12:00 AM
Sunset: 7:04 PM
Daylight: 12 hrs 20 mins
Moonrise: 9:53 AM
Moon Transit: 6:04 PM
Moonset: 1:10 AM
Moon Phase: Waxing Crescent
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

7:33 AM - 10:03 AM
5:34 PM - 8:04 PM

Minor Periods

9:23 AM - 10:53 AM
12:40 AM - 2:10 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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