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

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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 / 0 meters

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

GPS Coordinates: 41.3464722, -71.9688611

Nearby Water Temperatures

Mystic River, Mystic, CT (1.0 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 (20.0 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

57.9°F
Overcast
Conditions: Overcast
Humidity: 87%
Feels Like: 54.8°F
Wind: ESE 14.8 mph
Wind Gusts: 20.6 mph
Pressure: 29.89 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0.7

Five Day Weather Forecast

Patchy rain nearby
Sun
H: 61°F
L: 42°F
Overcast
Mon
H: 55°F
L: 39°F
Sunny
Tue
H: 39°F
L: 31°F
Patchy rain nearby
Wed
H: 48°F
L: 38°F
Patchy rain nearby
Thu
H: 47°F
L: 41°F

Air Quality

AQI: 1 - Good
PM2.5: 9.75 μg/m3
PM10: 13.35 μg/m3
Carbon Monoxide: 199.85 μg/m3
Nitrogen Dioxide: 2.75 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 101 μg/m3

Astronomical

Sunrise: 6:30 AM
Sun Transit: 11:31 AM
Sunset: 4:34 PM
Daylight: 10 hrs 4 mins
Moonrise: 8:21 PM
Moon Transit: 3:19 AM
Moonset: 11:25 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.1%

Best Times for Fishing or Hunting

Major Periods

2:49 AM - 5:19 AM
5:51 PM - 8:21 PM

Minor Periods

7:51 PM - 9:21 PM
10:55 AM - 12:25 AM

Action Rating: 2 out of 5

Sunday, November 9, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 51.1°F
Average Humidity: 86%
Chance of Rain: 73%
Wind: 17.4 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 9.14 μg/m3
PM10: 12 μg/m3
Carbon Monoxide: 200.97 μg/m3
Nitrogen Dioxide: 5.99 μg/m3
Sulphur Dioxide: 2.13 μg/m3
Ozone: 72.12 μg/m3

Astronomical

Sunrise: 6:30 AM
Sun Transit: 11:31 AM
Sunset: 4:34 PM
Daylight: 10 hrs 4 mins
Moonrise: 8:21 PM
Moon Transit: 3:19 AM
Moonset: 11:25 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.1%

Best Times for Fishing or Hunting

Major Periods

2:49 AM - 5:19 AM
5:51 PM - 8:21 PM

Minor Periods

7:51 PM - 9:21 PM
10:55 AM - 12:25 AM

Action Rating: 2 out of 5

Monday, November 10, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 52°F
Average Humidity: 86%
Chance of Rain: 0%
Wind: 13.6 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 9.13 μg/m3
PM10: 11.92 μg/m3
Carbon Monoxide: 190.05 μg/m3
Nitrogen Dioxide: 6.67 μg/m3
Sulphur Dioxide: 1.57 μg/m3
Ozone: 85.08 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 11:31 AM
Sunset: 4:33 PM
Daylight: 10 hrs 2 mins
Moonrise: 9:36 PM
Moon Transit: 4:20 AM
Moonset: 12:09 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

3:50 AM - 6:20 AM
6:48 PM - 9:18 PM

Minor Periods

9:06 PM - 10:36 PM
11:39 AM - 1:09 PM

Action Rating: 3 out of 5

Tuesday, November 11, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 35.8°F
Average Humidity: 61%
Chance of Rain: 0%
Wind: 21.3 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 2.46 μg/m3
PM10: 2.61 μg/m3
Carbon Monoxide: 178.09 μg/m3
Nitrogen Dioxide: 5.44 μg/m3
Sulphur Dioxide: 1.92 μg/m3
Ozone: 64.64 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 11:31 AM
Sunset: 4:32 PM
Daylight: 10 hrs mins
Moonrise: 10:49 PM
Moon Transit: 5:15 AM
Moonset: 12:43 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

4:45 AM - 7:15 AM
7:40 PM - 10:10 PM

Minor Periods

10:19 PM - 11:49 PM
12:13 AM - 1:43 PM

Action Rating: 2 out of 5

Wednesday, November 12, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 43°F
Average Humidity: 67%
Chance of Rain: 83%
Wind: 19.5 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 3.58 μg/m3
PM10: 3.91 μg/m3
Carbon Monoxide: 160.89 μg/m3
Nitrogen Dioxide: 7.5 μg/m3
Sulphur Dioxide: 4.23 μg/m3
Ozone: 67.96 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 11:32 AM
Sunset: 4:31 PM
Daylight: 9 hrs 58 mins
Moonrise: 11:57 PM
Moon Transit: 6:05 AM
Moonset: 1:09 PM
Moon Phase: Last Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

5:35 AM - 8:05 AM
8:26 PM - 10:56 PM

Minor Periods

12:00 AM - 12:00 AM
12:39 AM - 2:09 PM

Action Rating: 2 out of 5

Thursday, November 13, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 44.1°F
Average Humidity: 72%
Chance of Rain: 77%
Wind: 18.3 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 4.68 μg/m3
PM10: 4.77 μg/m3
Carbon Monoxide: 191.23 μg/m3
Nitrogen Dioxide: 9.27 μg/m3
Sulphur Dioxide: 4.73 μg/m3
Ozone: 50.54 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 11:32 AM
Sunset: 4:30 PM
Daylight: 9 hrs 56 mins
Moonrise: 12:57 AM
Moon Transit: 6:50 AM
Moonset: 1:31 PM
Moon Phase: Last Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

6:20 AM - 8:50 AM
9:10 PM - 11:40 PM

Minor Periods

1:01 PM - 2:31 PM
12:00 AM - 12:00 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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