Water Temperature of the Mill River in Southport, CT
Current Water Temperature
49.5°F
Measurement Time: Thursday, April 18, 2024, 5:06 AM EDT
Temperature Locations
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Local Points of Interest
Perry's GreenMill River
Station Name: MILL RIVER AT PEQUOT YACHT CLUB AT SOUTHPORT, CT
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 0 feet
Nearest Address:
657 Harbor Rd
Southport, CT 06890
Fairfield County
GPS Coordinates: 41.1325083, -73.2824833
Nearby Water Temperatures
Mill River, Fairfield, CT (0.6 mi)Saugatuck River, Westport Village, CT (4.6 mi)
Rooster River, Bridgeport, CT (4.6 mi)
Saugatuck River, Westport, CT (4.8 mi)
Bridgeport Harbor, Bridgeport, CT (6 mi)
Norwalk River, Norwalk, CT (6.8 mi)
Norwalk Harbor, Norwalk, CT (7 mi)
Norwalk River, Norwalk, CT (7.3 mi)
Housatonic River, Stratford, CT (9.2 mi)
Flax Pond, Old Field, NY (13.8 mi)
New Haven Harbor, New Haven, CT (22.1 mi)
Frost Creek, Lattingtown, NY (22.6 mi)
Naugatuck River, Beacon Falls, CT (24.3 mi)
East Creek, Sands Point, NY (28.9 mi)
Great South Bay, West Sayville, NY (30.1 mi)
Weather for Southport, Connecticut
Current Weather
58.3°F

Conditions: Sunny
Humidity: 34%
Feels Like: 53.2°F
Wind: NNE 2.2 mph
Wind Gusts: 5.4 mph
Humidity: 34%
Feels Like: 53.2°F
Wind: NNE 2.2 mph
Wind Gusts: 5.4 mph
Pressure: 30.53 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 3.4
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 3.4
Weather Forecast

Sun
H: 59°F
L: 37°F

Mon
H: 61°F
L: 41°F

Tue
H: 65°F
L: 47°F
Air Quality
PM2.5:
3.7 μg/m3
PM10:
4.7 μg/m3
Carbon Monoxide: 128 μg/m3
Nitrogen Dioxide: 2.4 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 79 μg/m3
Nitrogen Dioxide: 2.4 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 79 μg/m3
Astronomical
Sunrise: 7:08 AM
Sun Transit: 12:38 AM
Sunset: 6:08 PM
Daylight: 11 hrs mins
Sun Transit: 12:38 AM
Sunset: 6:08 PM
Daylight: 11 hrs mins
Moonrise: 2:31 PM
Moon Transit: 7:09 PM
Moonset: 11:54 PM
Moon Phase: First Quarter
Moon Illumination: 48.3%
Moon Transit: 7:09 PM
Moonset: 11:54 PM
Moon Phase: First Quarter
Moon Illumination: 48.3%
Best Times for Fishing or Hunting
Major Periods
8:33 AM - 11:03 AM6:39 PM - 9:09 PM
Minor Periods
12:00 AM - 12:00 AM2:01 PM - 3:31 PM
Action Rating: 2 out of 5
Sunday, October 18, 2026
Weather Forecast
Conditions: Sunny
Average Temperature: 46.6°F
Average Humidity: 49%
Average Temperature: 46.6°F
Average Humidity: 49%
Chance of Rain: 2%
Wind: 6.7 mph
UV Index: 3.9
Wind: 6.7 mph
UV Index: 3.9
Air Quality
AQI:
0 -
PM2.5:
0 μg/m3
PM10:
0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sunrise: 7:08 AM
Sun Transit: 12:38 AM
Sunset: 6:08 PM
Daylight: 11 hrs mins
Sun Transit: 12:38 AM
Sunset: 6:08 PM
Daylight: 11 hrs mins
Moonrise: 2:31 PM
Moon Transit: 7:09 PM
Moonset: 11:54 PM
Moon Phase: First Quarter
Moon Illumination: 48.3%
Moon Transit: 7:09 PM
Moonset: 11:54 PM
Moon Phase: First Quarter
Moon Illumination: 48.3%
Best Times for Fishing or Hunting
Major Periods
8:33 AM - 11:03 AM6:39 PM - 9:09 PM
Minor Periods
12:00 AM - 12:00 AM2:01 PM - 3:31 PM
Action Rating: 2 out of 5
Monday, October 19, 2026
Weather Forecast
Conditions: Sunny
Average Temperature: 50.2°F
Average Humidity: 59%
Average Temperature: 50.2°F
Average Humidity: 59%
Chance of Rain: 7%
Wind: 7.4 mph
UV Index: 3.8
Wind: 7.4 mph
UV Index: 3.8
Air Quality
AQI:
0 -
PM2.5:
0 μg/m3
PM10:
0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sunrise: 7:09 AM
Sun Transit: 12:38 AM
Sunset: 6:06 PM
Daylight: 10 hrs 57 mins
Sun Transit: 12:38 AM
Sunset: 6:06 PM
Daylight: 10 hrs 57 mins
Moonrise: 3:00 PM
Moon Transit: 7:55 PM
Moonset: 12:54 AM
Moon Phase: First Quarter
Moon Illumination: 59.6%
Moon Transit: 7:55 PM
Moonset: 12:54 AM
Moon Phase: First Quarter
Moon Illumination: 59.6%
Best Times for Fishing or Hunting
Major Periods
9:20 AM - 11:50 AM7:25 PM - 9:55 PM
Minor Periods
2:30 PM - 4:00 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Tuesday, October 20, 2026
Weather Forecast
Conditions: Overcast
Average Temperature: 53.9°F
Average Humidity: 57%
Average Temperature: 53.9°F
Average Humidity: 57%
Chance of Rain: 9%
Wind: 11 mph
UV Index: 3.4
Wind: 11 mph
UV Index: 3.4
Air Quality
AQI:
0 -
PM2.5:
0 μg/m3
PM10:
0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sunrise: 7:10 AM
Sun Transit: 12:37 AM
Sunset: 6:05 PM
Daylight: 10 hrs 55 mins
Sun Transit: 12:37 AM
Sunset: 6:05 PM
Daylight: 10 hrs 55 mins
Moonrise: 3:26 PM
Moon Transit: 8:40 PM
Moonset: 12:58 AM
Moon Phase: First Quarter
Moon Illumination: 70.4%
Moon Transit: 8:40 PM
Moonset: 12:58 AM
Moon Phase: First Quarter
Moon Illumination: 70.4%
Best Times for Fishing or Hunting
Major Periods
10:05 AM - 12:35 AM8:10 PM - 10:40 PM
Minor Periods
2:56 PM - 4:26 PM12:28 AM - 1:58 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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