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
37.9°F

Sunny
28.9°F
38.8°F
46%
W 15.9 mph
21.9 mph
31.1°F
28.6°F
0 in
0%
9 mi
1021 mbar
1.5
Five Day Weather Forecast

Mon
H: 44°F
L: 31°F

Tue
H: 39°F
L: 32°F

Wed
H: 41°F
L: 37°F

Thu
H: 38°F
L: 30°F

Fri
H: 29°F
L: 24°F
Air Quality
AQI:
2 - Moderate
PM2.5:
5.45 μg/m3
PM10:
6.25 μg/m3
Carbon Monoxide: 214.85 μg/m3
Nitrogen Dioxide: 13.25 μg/m3
Sulphur Dioxide: 5.45 μg/m3
Ozone: 62 μg/m3
Nitrogen Dioxide: 13.25 μg/m3
Sulphur Dioxide: 5.45 μg/m3
Ozone: 62 μg/m3
Astronomical
Sunrise: 7:17 AM
Sun Transit: 12:01 AM
Sunset: 4:46 PM
Daylight: 9 hrs 29 mins
Sun Transit: 12:01 AM
Sunset: 4:46 PM
Daylight: 9 hrs 29 mins
Moonrise: 2:01 AM
Moon Transit: 7:00 AM
Moonset: 11:50 AM
Moon Phase: Last Quarter
Moon Illumination: 25.0%
Moon Transit: 7:00 AM
Moonset: 11:50 AM
Moon Phase: Last Quarter
Moon Illumination: 25.0%
Best Times for Fishing or Hunting
Major Periods
6:30 AM - 9:00 AM9:09 PM - 11:39 PM
Minor Periods
11:20 AM - 12:50 AM1:31 AM - 3:01 AM
Action Rating: 2 out of 5
Monday, January 12, 2026
Weather Forecast
Sunny
44.2°F
30.9°F
36.3°F
61%
0 in
0%
0%
22.1 mph
0.3
Air Quality
AQI:
1 - Good
PM2.5:
4.23 μg/m3
PM10:
4.61 μg/m3
Carbon Monoxide: 199.61 μg/m3
Nitrogen Dioxide: 10.3 μg/m3
Sulphur Dioxide: 3.87 μg/m3
Ozone: 63.08 μg/m3
Nitrogen Dioxide: 10.3 μg/m3
Sulphur Dioxide: 3.87 μg/m3
Ozone: 63.08 μg/m3
Astronomical
Sunrise: 7:17 AM
Sun Transit: 12:01 AM
Sunset: 4:46 PM
Daylight: 9 hrs 29 mins
Sun Transit: 12:01 AM
Sunset: 4:46 PM
Daylight: 9 hrs 29 mins
Moonrise: 2:01 AM
Moon Transit: 7:00 AM
Moonset: 11:50 AM
Moon Phase: Last Quarter
Moon Illumination: 25.0%
Moon Transit: 7:00 AM
Moonset: 11:50 AM
Moon Phase: Last Quarter
Moon Illumination: 25.0%
Best Times for Fishing or Hunting
Major Periods
6:30 AM - 9:00 AM9:09 PM - 11:39 PM
Minor Periods
11:20 AM - 12:50 AM1:31 AM - 3:01 AM
Action Rating: 2 out of 5
Tuesday, January 13, 2026
Weather Forecast
Sunny
39.4°F
32.2°F
36.1°F
78%
0 in
0%
0%
11.9 mph
0.3
Air Quality
AQI:
1 - Good
PM2.5:
14.01 μg/m3
PM10:
14.68 μg/m3
Carbon Monoxide: 294.09 μg/m3
Nitrogen Dioxide: 29.96 μg/m3
Sulphur Dioxide: 14.66 μg/m3
Ozone: 30.52 μg/m3
Nitrogen Dioxide: 29.96 μg/m3
Sulphur Dioxide: 14.66 μg/m3
Ozone: 30.52 μg/m3
Astronomical
Sunrise: 7:17 AM
Sun Transit: 12:01 AM
Sunset: 4:47 PM
Daylight: 9 hrs 31 mins
Sun Transit: 12:01 AM
Sunset: 4:47 PM
Daylight: 9 hrs 31 mins
Moonrise: 3:04 AM
Moon Transit: 7:44 AM
Moonset: 12:20 AM
Moon Phase: Waning Crescent
Moon Illumination: 15.9%
Moon Transit: 7:44 AM
Moonset: 12:20 AM
Moon Phase: Waning Crescent
Moon Illumination: 15.9%
Best Times for Fishing or Hunting
Major Periods
7:14 AM - 9:44 AM12:00 AM - 12:00 AM
Minor Periods
11:50 AM - 1:20 PM2:34 AM - 4:04 AM
Action Rating: 3 out of 5
Wednesday, January 14, 2026
Weather Forecast
Overcast
41.4°F
37°F
39.2°F
83%
0 in
0%
0%
11.9 mph
0.3
Air Quality
AQI:
1 - Good
PM2.5:
14.05 μg/m3
PM10:
14.9 μg/m3
Carbon Monoxide: 266.49 μg/m3
Nitrogen Dioxide: 29.44 μg/m3
Sulphur Dioxide: 10.25 μg/m3
Ozone: 36.76 μg/m3
Nitrogen Dioxide: 29.44 μg/m3
Sulphur Dioxide: 10.25 μg/m3
Ozone: 36.76 μg/m3
Astronomical
Sunrise: 7:16 AM
Sun Transit: 12:02 AM
Sunset: 4:48 PM
Daylight: 9 hrs 32 mins
Sun Transit: 12:02 AM
Sunset: 4:48 PM
Daylight: 9 hrs 32 mins
Moonrise: 4:07 AM
Moon Transit: 8:33 AM
Moonset: 12:56 AM
Moon Phase: Waning Crescent
Moon Illumination: 8.5%
Moon Transit: 8:33 AM
Moonset: 12:56 AM
Moon Phase: Waning Crescent
Moon Illumination: 8.5%
Best Times for Fishing or Hunting
Major Periods
8:03 AM - 10:33 AM12:00 AM - 12:00 AM
Minor Periods
12:26 AM - 1:56 PM3:37 AM - 5:07 AM
Action Rating: 2 out of 5
Thursday, January 15, 2026
Weather Forecast
Patchy rain nearby
38.1°F
30°F
36.5°F
88%
0.15 in
89%
8%
16.3 mph
0.1
Air Quality
AQI:
2 - Moderate
PM2.5:
21.03 μg/m3
PM10:
22.2 μg/m3
Carbon Monoxide: 352.53 μg/m3
Nitrogen Dioxide: 44.99 μg/m3
Sulphur Dioxide: 9.59 μg/m3
Ozone: 15.88 μg/m3
Nitrogen Dioxide: 44.99 μg/m3
Sulphur Dioxide: 9.59 μg/m3
Ozone: 15.88 μg/m3
Astronomical
Sunrise: 7:16 AM
Sun Transit: 12:02 AM
Sunset: 4:50 PM
Daylight: 9 hrs 34 mins
Sun Transit: 12:02 AM
Sunset: 4:50 PM
Daylight: 9 hrs 34 mins
Moonrise: 5:06 AM
Moon Transit: 9:24 AM
Moonset: 1:41 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%
Moon Transit: 9:24 AM
Moonset: 1:41 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%
Best Times for Fishing or Hunting
Major Periods
8:54 AM - 11:24 AM12:00 AM - 12:00 AM
Minor Periods
1:11 PM - 2:41 PM4:36 AM - 6:06 AM
Action Rating: 2 out of 5
Friday, January 16, 2026
Weather Forecast
Blowing snow
29.4°F
23.7°F
26.9°F
74%
0.09 in
78%
43%
19.9 mph
0
Air Quality
AQI:
2 - Moderate
PM2.5:
15.75 μg/m3
PM10:
15.75 μg/m3
Carbon Monoxide: 462.85 μg/m3
Nitrogen Dioxide: 39.05 μg/m3
Sulphur Dioxide: 7.95 μg/m3
Ozone: 10 μg/m3
Nitrogen Dioxide: 39.05 μg/m3
Sulphur Dioxide: 7.95 μg/m3
Ozone: 10 μg/m3
Astronomical
Sunrise: 7:16 AM
Sun Transit: 12:02 AM
Sunset: 4:51 PM
Daylight: 9 hrs 35 mins
Sun Transit: 12:02 AM
Sunset: 4:51 PM
Daylight: 9 hrs 35 mins
Moonrise: 6:01 AM
Moon Transit: 10:16 AM
Moonset: 2:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.5%
Moon Transit: 10:16 AM
Moonset: 2:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.5%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:46 AM - 12:16 AM
Minor Periods
2:04 PM - 3:34 PM5:31 AM - 7:01 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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