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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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

Humidity: 93%
Feels Like: 51.9°F
Wind: NE 27.3 mph
Wind Gusts: 36.4 mph
Precipitation: 0.08 in
Cloud Cover: 100%
Visibility: 8 mi
UV Index: 0.3
Five Day Weather Forecast

Mon
H: 61°F
L: 56°F

Tue
H: 57°F
L: 53°F

Wed
H: 62°F
L: 50°F

Thu
H: 57°F
L: 42°F

Fri
H: 59°F
L: 41°F
Air Quality
Nitrogen Dioxide: 4.45 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 80 μg/m3
Astronomical
Sun Transit: 12:34 AM
Sunset: 6:10 PM
Daylight: 11 hrs 12 mins
Moon Transit: 6:32 AM
Moonset: 2:33 PM
Moon Phase: Last Quarter
Moon Illumination: 51.1%
Best Times for Fishing or Hunting
Major Periods
6:02 AM - 8:32 AM9:00 PM - 11:30 PM
Minor Periods
12:00 AM - 12:00 AM2:03 PM - 3:33 PM
Action Rating: 2 out of 5
Coastal Flood Advisory issued October 12 at 3:21PM EDT until October 13 at 8:00PM EDT by NWS Upton NY
Effective: Sun October 12, 2025, 3:21 PM
Expires: Mon October 13, 2025, 8:00 PM
* WHAT...1 to 1 1/2 ft, locally 2 ft of inundation above ground level expected in vulnerable areas near the waterfront and shoreline for this afternoon, but moreso tonight, and Monday afternoon high tide cycles. * WHERE...Southern Fairfield, Southern New Haven, Southern Middlesex and Southern New London Counties. * WHEN...Thru 8 PM EDT Monday, around times of high tide. * IMPACTS...Widespread minor to locally moderate flooding is expected in the most vulnerable locations near the waterfront and shoreline. Expect 1 to 1 1/2 ft, locally 2 ft of inundation above ground level in low lying, vulnerable areas. Some roads and low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront will experience shallow flooding. * ADDITIONAL DETAILS...This forecast has been weighted towards a reasonable worst case scenario to account for differences in model depiction of low pressure track and intensity, and provide a safety margin for planning. Water levels would fall on lower end or short of current forecast range if winds remain more from the north versus the northeast.
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Wind Advisory issued October 13 at 2:11AM EDT until October 13 at 6:00PM EDT by NWS Upton NY
Effective: Mon October 13, 2025, 2:11 AM
Expires: Mon October 13, 2025, 12:15 PM
* WHAT...Northeast winds 20 to 25 mph with gusts up to 45 mph. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...Until 6 PM EDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.
Wind Advisory issued October 13 at 4:55AM EDT until October 13 at 12:00PM EDT by NWS Upton NY
Effective: Mon October 13, 2025, 4:55 AM
Expires: Mon October 13, 2025, 12:00 PM
* WHAT...Northeast winds 20 to 25 mph with gusts up to 45 mph. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...Until noon EDT today. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...If the current trend continues, this product may be cancelled before noon.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.
Coastal Flood Advisory issued October 13 at 3:38AM EDT until October 13 at 8:00PM EDT by NWS Upton NY
Effective: Mon October 13, 2025, 3:38 AM
Expires: Mon October 13, 2025, 11:45 AM
* WHAT...1 to 1 1/2 ft, locally 2 ft of inundation above ground level expected in vulnerable areas near the waterfront and shoreline for this afternoon, but moreso tonight, and Monday afternoon high tide cycles. * WHERE...Southern Fairfield, Southern New Haven, Southern Middlesex and Southern New London Counties. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Widespread minor to locally moderate flooding is expected in the most vulnerable locations near the waterfront and shoreline. Expect 1 to 1 1/2 ft, locally 2 ft of inundation above ground level in low lying, vulnerable areas. Some roads and low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront will experience shallow flooding. * ADDITIONAL DETAILS...This forecast has been weighted towards a reasonable worst case scenario to account for differences in model depiction of low pressure track and intensity, and provide a safety margin for planning. Water levels would fall on lower end or short of current forecast range if winds remain more from the north versus the northeast.
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Coastal Flood Advisory issued October 13 at 11:34AM EDT until October 13 at 8:00PM EDT by NWS Upton NY
Effective: Mon October 13, 2025, 11:34 AM
Expires: Mon October 13, 2025, 8:00 PM
* WHAT...1 to 1 1/2 ft, locally 2 ft of inundation above ground level expected in vulnerable areas near the waterfront and shoreline for this afternoon, but moreso tonight, and Monday afternoon high tide cycles. * WHERE...Southern Fairfield, Southern New Haven, Southern Middlesex and Southern New London Counties. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Widespread minor to locally moderate flooding is expected in the most vulnerable locations near the waterfront and shoreline. Expect 1 to 1 1/2 ft, locally 2 ft of inundation above ground level in low lying, vulnerable areas. Some roads and low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront will experience shallow flooding. * ADDITIONAL DETAILS...This forecast has been weighted towards a reasonable worst case scenario to account for differences in model depiction of low pressure track and intensity, and provide a safety margin for planning. Water levels would fall on lower end or short of current forecast range if winds remain more from the north versus the northeast.
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Wind Advisory issued October 13 at 7:40AM EDT until October 13 at 8:00PM EDT by NWS Boston/Norton MA
Effective: Mon October 13, 2025, 7:40 AM
Expires: Mon October 13, 2025, 8:00 PM
* WHAT...East winds 25 to 35 mph with gusts up to 55 mph. * WHERE...In Massachusetts, Dukes MA and Nantucket MA Counties. In Rhode Island, Block Island RI. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and some power outages may result.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.
Coastal Flood Advisory issued October 13 at 8:22AM EDT until October 13 at 4:00PM EDT by NWS Boston/Norton MA
Effective: Mon October 13, 2025, 8:22 AM
Expires: Mon October 13, 2025, 4:00 PM
* WHAT...Up to one half foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways (5.0 to 5.8 feet Mean Lower Low Water). * WHERE...Washington, and Newport RI Counties. * WHEN...From noon today to 4 PM EDT this afternoon. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected.
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Weather Forecast
Average Temperature: 58.4°F
Average Humidity: 92%
Wind: 29.3 mph
UV Index: 0.1
Air Quality
Nitrogen Dioxide: 2.85 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 86.28 μg/m3
Astronomical
Sun Transit: 12:34 AM
Sunset: 6:10 PM
Daylight: 11 hrs 12 mins
Moon Transit: 6:32 AM
Moonset: 2:33 PM
Moon Phase: Last Quarter
Moon Illumination: 51.1%
Best Times for Fishing or Hunting
Major Periods
6:02 AM - 8:32 AM9:00 PM - 11:30 PM
Minor Periods
12:00 AM - 12:00 AM2:03 PM - 3:33 PM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 56.6°F
Average Humidity: 87%
Wind: 23.7 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 5.57 μg/m3
Sulphur Dioxide: 1.93 μg/m3
Ozone: 75.52 μg/m3
Astronomical
Sun Transit: 12:33 AM
Sunset: 6:08 PM
Daylight: 11 hrs 9 mins
Moon Transit: 7:28 AM
Moonset: 3:10 PM
Moon Phase: Last Quarter
Moon Illumination: 39.8%
Best Times for Fishing or Hunting
Major Periods
6:58 AM - 9:28 AM12:00 AM - 12:00 AM
Minor Periods
2:40 PM - 4:10 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 56.6°F
Average Humidity: 71%
Wind: 18.3 mph
UV Index: 0.7
Air Quality
Nitrogen Dioxide: 6.12 μg/m3
Sulphur Dioxide: 2.53 μg/m3
Ozone: 74.2 μg/m3
Astronomical
Sun Transit: 12:33 AM
Sunset: 6:07 PM
Daylight: 11 hrs 6 mins
Moon Transit: 8:20 AM
Moonset: 3:40 PM
Moon Phase: Last Quarter
Moon Illumination: 29.1%
Best Times for Fishing or Hunting
Major Periods
7:50 AM - 10:20 AM12:00 AM - 12:00 AM
Minor Periods
3:10 PM - 4:40 PM12:18 AM - 1:48 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 48.8°F
Average Humidity: 55%
Wind: 17.7 mph
UV Index: 0.8
Air Quality
Nitrogen Dioxide: 3.35 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 68.88 μg/m3
Astronomical
Sun Transit: 12:33 AM
Sunset: 6:05 PM
Daylight: 11 hrs 4 mins
Moon Transit: 9:07 AM
Moonset: 4:05 PM
Moon Phase: Last Quarter
Moon Illumination: 19.4%
Best Times for Fishing or Hunting
Major Periods
8:37 AM - 11:07 AM12:00 AM - 12:00 AM
Minor Periods
3:35 PM - 5:05 PM1:28 AM - 2:58 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 49.2°F
Average Humidity: 52%
Wind: 12.8 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 4.13 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 64.38 μg/m3
Astronomical
Sun Transit: 12:33 AM
Sunset: 6:03 PM
Daylight: 11 hrs 1 mins
Moon Transit: 9:51 AM
Moonset: 4:26 PM
Moon Phase: Waning Crescent
Moon Illumination: 11.3%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:21 AM - 11:51 AM
Minor Periods
3:56 PM - 5:26 PM2:35 AM - 4:05 AM
Action Rating: 2 out of 5