Water Temperature of the Mystic River in Mystic, CT

Current Water Temperature

49.3°F

Measurement Time: Monday, April 10, 2023, 5:24 AM EDT

Temperature Locations

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Local Points of Interest

Mystic Seaport

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Mystic River

Station Name: MYSTIC RIVER AT MYSTIC SEAPORT NEAR MYSTIC, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet / 0 meters

Nearest Address:
93 Pearl St
Mystic, CT 06355
New London County

GPS Coordinates: 41.3614722, -71.96727778

Nearby Water Temperatures

Mystic Harbor, Mystic, CT (1.0 mi)
Mystic River, Old Mystic, CT (1.1 mi)
Mystic River, Noank, CT (2.5 mi)
Thames River, Groton, CT (6.0 mi)
Thames River, New London, CT (6.7 mi)
Pawcatuck River, Westerly, RI (7.1 mi)
Yantic River, Norwich, CT (15.8 mi)
East Branch Eightmile River, Lyme, CT (19.6 mi)
Eightmile River, East Haddam, CT (19.7 mi)
Connecticut River, Old Lyme, CT (19.9 mi)
Fort Pond Bay, Montauk, NY (21.6 mi)
Orient Harbor, Orient, NY (23.5 mi)
Natchaug River, Chaplin, CT (32.2 mi)
Wilbur Hollow Brook, Clayville, RI (32.7 mi)
Hemlock Brook, Foster, RI (32.7 mi)

Weather for Mystic, Connecticut

Current Weather

61°F
Partly Cloudy
Conditions: Partly Cloudy
Humidity: 90%
Feels Like: 61°F
Wind: SW 5.4 mph
Wind Gusts: 11.3 mph
Pressure: 30.14 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Wed
H: 82°F
L: 51°F
Cloudy
Thu
H: 90°F
L: 56°F
Partly Cloudy
Fri
H: 80°F
L: 63°F
Moderate rain
Sat
H: 65°F
L: 60°F
Patchy rain nearby
Sun
H: 71°F
L: 60°F

Air Quality

AQI: 1 - Good
PM2.5: 22.94 μg/m3
PM10: 26.27 μg/m3
Carbon Monoxide: 347.8 μg/m3
Nitrogen Dioxide: 14.06 μg/m3
Sulphur Dioxide: 4.81 μg/m3
Ozone: 99 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:46 AM
Sunset: 8:18 PM
Daylight: 15 hrs 2 mins
Moonrise: 2:07 PM
Moon Transit: 8:10 PM
Moonset: 1:45 AM
Moon Phase: First Quarter
Moon Illumination: 59.8%

Best Times for Fishing or Hunting

Major Periods

9:49 AM - 12:19 AM
7:40 PM - 10:10 PM

Minor Periods

1:37 PM - 3:07 PM
1:15 AM - 2:45 AM

Action Rating: 2 out of 5

Air Quality Alert issued June 3 at 3:15PM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Tue June 3, 2025, 3:15 PM
Expires: Wed June 4, 2025, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Fairfield, New Haven, Middlesex, Northern New London. from 11 AM to 11 PM EDT Wednesday. An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi


Air Quality Alert issued June 3 at 3:15PM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Tue June 3, 2025, 3:15 PM
Expires: Wed June 4, 2025, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Fairfield, New Haven, Middlesex, Northern New London. from 11 AM to 11 PM EDT Wednesday. An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi


Air Quality Alert issued June 4 at 4:17PM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Wed June 4, 2025, 4:17 PM
Expires: Wed June 4, 2025, 11:00 PM

The Connecticut Department of Energy and Environmental Protection's Air Quality Action Day remains in effect for the following counties: Fairfield, New Haven, Middlesex, and Northern New London, until 11 PM EDT this evening. An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi


Air Quality Alert issued June 3 at 3:15PM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Tue June 3, 2025, 3:15 PM
Expires: Wed June 4, 2025, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Fairfield, New Haven, Middlesex, Northern New London. from 11 AM to 11 PM EDT Wednesday. An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi


Air Quality Alert issued June 3 at 3:15PM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Tue June 3, 2025, 3:15 PM
Expires: Wed June 4, 2025, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Fairfield, New Haven, Middlesex, Northern New London. from 11 AM to 11 PM EDT Wednesday. An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi


Wednesday, June 4, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 66.1°F
Average Humidity: 77%
Chance of Rain: 0%
Wind: 10.1 mph
UV Index: 1.9

Air Quality

AQI: 2 - Moderate
PM2.5: 26.68 μg/m3
PM10: 27.93 μg/m3
Carbon Monoxide: 365.78 μg/m3
Nitrogen Dioxide: 13.97 μg/m3
Sulphur Dioxide: 4.92 μg/m3
Ozone: 115.64 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:46 AM
Sunset: 8:18 PM
Daylight: 15 hrs 2 mins
Moonrise: 2:07 PM
Moon Transit: 8:10 PM
Moonset: 1:45 AM
Moon Phase: First Quarter
Moon Illumination: 59.8%

Best Times for Fishing or Hunting

Major Periods

9:49 AM - 12:19 AM
7:40 PM - 10:10 PM

Minor Periods

1:37 PM - 3:07 PM
1:15 AM - 2:45 AM

Action Rating: 2 out of 5

Thursday, June 5, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 70.8°F
Average Humidity: 82%
Chance of Rain: 0%
Wind: 10.7 mph
UV Index: 2

Air Quality

AQI: 2 - Moderate
PM2.5: 31.71 μg/m3
PM10: 33.78 μg/m3
Carbon Monoxide: 401.97 μg/m3
Nitrogen Dioxide: 12.55 μg/m3
Sulphur Dioxide: 7.02 μg/m3
Ozone: 125.84 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:46 AM
Sunset: 8:18 PM
Daylight: 15 hrs 3 mins
Moonrise: 3:08 PM
Moon Transit: 8:50 PM
Moonset: 2:04 AM
Moon Phase: First Quarter
Moon Illumination: 70.6%

Best Times for Fishing or Hunting

Major Periods

10:28 AM - 12:58 AM
8:20 PM - 10:50 PM

Minor Periods

2:38 PM - 4:08 PM
1:34 AM - 3:04 AM

Action Rating: 3 out of 5

Friday, June 6, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 71.2°F
Average Humidity: 84%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 2

Air Quality

AQI: 2 - Moderate
PM2.5: 31.95 μg/m3
PM10: 33.89 μg/m3
Carbon Monoxide: 415.88 μg/m3
Nitrogen Dioxide: 17.12 μg/m3
Sulphur Dioxide: 6.71 μg/m3
Ozone: 108.04 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:46 AM
Sunset: 8:19 PM
Daylight: 15 hrs 4 mins
Moonrise: 4:09 PM
Moon Transit: 9:30 PM
Moonset: 2:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

11:08 AM - 1:38 PM
9:00 PM - 11:30 PM

Minor Periods

3:39 PM - 5:09 PM
1:53 AM - 3:23 AM

Action Rating: 2 out of 5

Saturday, June 7, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 61.7°F
Average Humidity: 96%
Chance of Rain: 81%
Wind: 6.7 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 14.11 μg/m3
PM10: 19.28 μg/m3
Carbon Monoxide: 292.37 μg/m3
Nitrogen Dioxide: 10.67 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 62.68 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:46 AM
Sunset: 8:19 PM
Daylight: 15 hrs 5 mins
Moonrise: 5:11 PM
Moon Transit: 10:13 PM
Moonset: 2:44 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

11:50 AM - 2:20 PM
12:00 AM - 12:00 AM

Minor Periods

4:41 PM - 6:11 PM
2:14 AM - 3:44 AM

Action Rating: 2 out of 5

Sunday, June 8, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 64.6°F
Average Humidity: 90%
Chance of Rain: 86%
Wind: 6 mph
UV Index: 1.2

Air Quality

AQI: 1 - Good
PM2.5: 6.6 μg/m3
PM10: 9.18 μg/m3
Carbon Monoxide: 349.22 μg/m3
Nitrogen Dioxide: 19.27 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 43.69 μg/m3

Astronomical

Sunrise: 5:14 AM
Sun Transit: 12:47 AM
Sunset: 8:20 PM
Daylight: 15 hrs 6 mins
Moonrise: 6:15 PM
Moon Transit: 10:58 PM
Moonset: 3:07 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

12:34 AM - 3:04 PM
12:00 AM - 12:00 AM

Minor Periods

5:45 PM - 7:15 PM
2:37 AM - 4:07 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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