Water Temperature of Mystic Harbor in Mystic, CT
Current Water Temperature
Measurement Time: Wednesday, April 5, 2023, 8:00 AM EDT
Temperature Locations
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Local Points of Interest
Mason IslandStation 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

Five Day Weather Forecast

Tue
H: 41°F
L: 33°F

Wed
H: 35°F
L: 28°F

Thu
H: 42°F
L: 31°F

Fri
H: 45°F
L: 33°F

Sat
H: 50°F
L: 34°F
Air Quality
Nitrogen Dioxide: 4.55 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 85 μg/m3
Astronomical
Sun Transit: 12:56 AM
Sunset: 6:57 PM
Daylight: 12 hrs 1 mins
Moon Transit: 11:50 AM
Moonset: 5:37 PM
Moon Phase: New
Moon Illumination: 0.1%
Best Times for Fishing or Hunting
Major Periods
1:25 AM - 3:55 AM11:20 AM - 1:50 PM
Minor Periods
5:07 PM - 6:37 PM5:45 AM - 7:15 AM
Action Rating: 5 out of 5
Dense Fog Advisory issued March 16 at 4:38PM EDT until March 17 at 1:00AM EDT by NWS Upton NY
Effective: Mon March 16, 2026, 4:38 PM
Expires: Tue March 17, 2026, 4:00 AM
* WHAT...For the Wind Advisory, south winds 20 to 35 mph with gusts up to 55 mph, shifting west late tonight. Isolated gusts to 60 mph possible. For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. * WHERE...Portions of southern Connecticut and southeast New York. * WHEN...For the Dense Fog Advisory, until 1 AM EDT Tuesday. For the Wind Advisory, until 4 AM EDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Scattered tree limbs, as well as isolated trees and powerlines could be blown down. Power outages possible. Locally damaging wind gusts in excess of 60 mph are possible with any stronger thunderstorm activity this evening into tonight. This activity will be addressed by Special Weather Statements or Severe Thunderstorm Warnings as needed. Low visibility could make driving conditions hazardous.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Wind Advisory issued March 16 at 4:38PM EDT until March 17 at 4:00AM EDT by NWS Upton NY
Effective: Mon March 16, 2026, 4:38 PM
Expires: Tue March 17, 2026, 4:00 AM
* WHAT...For the Wind Advisory, south winds 20 to 35 mph with gusts up to 55 mph, shifting west late tonight. Isolated gusts to 60 mph possible. For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. * WHERE...Portions of southern Connecticut and southeast New York. * WHEN...For the Dense Fog Advisory, until 1 AM EDT Tuesday. For the Wind Advisory, until 4 AM EDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Scattered tree limbs, as well as isolated trees and powerlines could be blown down. Power outages possible. Locally damaging wind gusts in excess of 60 mph are possible with any stronger thunderstorm activity this evening into tonight. This activity will be addressed by Special Weather Statements or Severe Thunderstorm Warnings as needed. Low visibility could make driving conditions hazardous.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Wind Advisory issued March 16 at 4:38PM EDT until March 17 at 4:00AM EDT by NWS Upton NY
Effective: Mon March 16, 2026, 4:38 PM
Expires: Tue March 17, 2026, 4:00 AM
* WHAT...South winds 20 to 35 mph with gusts up to 55 mph, shifting west late tonight. Isolated gusts to 60 mph possible. * WHERE...In Connecticut, Northern Fairfield, Northern Middlesex, Northern New Haven, and Northern New London Counties. In New Jersey, Eastern Bergen, Eastern Essex, Eastern Union, and Hudson Counties. In New York, New York (Manhattan) and Richmond (Staten Island) Counties. * WHEN...Until 4 AM EDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Scattered tree limbs, as well as isolated trees and powerlines could be blown down. Power outages possible. Locally damaging wind gusts in excess of 60 mph are possible with any stronger thunderstorm activity this evening into tonight. This activity will be addressed by Special Weather Statements or Severe Thunderstorm Warnings as needed.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.
Flood Watch issued March 16 at 3:02PM EDT until March 17 at 8:00AM EDT by NWS Upton NY
Effective: Mon March 16, 2026, 3:02 PM
Expires: Tue March 17, 2026, 8:00 AM
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of southern Connecticut, including the following areas, Northern Fairfield, Northern Middlesex, Northern New Haven, Northern New London, Southern Fairfield, Southern Middlesex, Southern New Haven and Southern New London. * WHEN...Through Tuesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Flood Watch issued March 16 at 3:04PM EDT until March 17 at 8:00AM EDT by NWS Boston/Norton MA
Effective: Mon March 16, 2026, 3:04 PM
Expires: Tue March 17, 2026, 8:00 AM
* WHAT...Flooding is possible from periods of heavy rain through tonight combined with last week/s snow melt. * WHERE...All of southern New England except the outer-Islands. * WHEN...Through Tuesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Area creeks and streams are running high and could flood with more heavy rain. * ADDITIONAL DETAILS... - Periods of heavy showers and potentially a few embedded thunder will continue through tonight. This combined with last week/s snow melt may result in some river and small stream flooding as well as pockets poor drainage street flooding. - http://www.weather.gov/safety/flood
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.44 μg/m3
Sulphur Dioxide: 1.66 μg/m3
Ozone: 83.2 μg/m3
Astronomical
Sun Transit: 12:56 AM
Sunset: 6:57 PM
Daylight: 12 hrs 1 mins
Moon Transit: 11:50 AM
Moonset: 5:37 PM
Moon Phase: New
Moon Illumination: 0.1%
Best Times for Fishing or Hunting
Major Periods
1:25 AM - 3:55 AM11:20 AM - 1:50 PM
Minor Periods
5:07 PM - 6:37 PM5:45 AM - 7:15 AM
Action Rating: 5 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.13 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 93.32 μg/m3
Astronomical
Sun Transit: 12:55 AM
Sunset: 6:58 PM
Daylight: 12 hrs 3 mins
Moon Transit: 12:36 AM
Moonset: 6:48 PM
Moon Phase: New
Moon Illumination: 2.2%
Best Times for Fishing or Hunting
Major Periods
2:12 AM - 4:42 AM12:06 AM - 2:36 PM
Minor Periods
6:18 PM - 7:48 PM6:07 AM - 7:37 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.98 μg/m3
Sulphur Dioxide: 1.87 μg/m3
Ozone: 100.52 μg/m3
Astronomical
Sun Transit: 12:00 AM
Sunset: 6:59 PM
Daylight: 12 hrs 6 mins
Moon Transit: 1:31 AM
Moonset: 8:01 PM
Moon Phase: New
Moon Illumination: 0.3%
Best Times for Fishing or Hunting
Major Periods
1:01 AM - 3:31 AM1:01 AM - 3:31 AM
Minor Periods
7:31 PM - 9:01 PM6:29 AM - 7:59 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 8.1 μg/m3
Sulphur Dioxide: 2.59 μg/m3
Ozone: 89.08 μg/m3
Astronomical
Sun Transit: 10:27 AM
Sunset: 7:00 PM
Daylight: 12 hrs 9 mins
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 AM1:42 PM - 4:12 PM
Minor Periods
8:47 PM - 10:17 PM6:52 AM - 8:22 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.74 μg/m3
Sulphur Dioxide: 1.79 μg/m3
Ozone: 94.85 μg/m3
Astronomical
Sun Transit: 12:00 AM
Sunset: 7:01 PM
Daylight: 12 hrs 12 mins
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 AM2:35 PM - 5:05 PM
Minor Periods
10:06 PM - 11:36 PM7:20 AM - 8:50 AM
Action Rating: 4 out of 5
