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 Green

Mill 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

42.1°F
Overcast
Overcast
41.4°F
40.8°F
73%
E 2.5 mph
3.4 mph
37.4°F
34.3°F
0 in
100%
9 mi
1018 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 50°F
L: 35°F
Sunny
Wed
H: 44°F
L: 30°F
Partly Cloudy
Thu
H: 39°F
L: 37°F
Sunny
Fri
H: 55°F
L: 38°F
Sunny
Sat
H: 64°F
L: 46°F

Air Quality

AQI: 1 - Good
PM2.5: 8.05 μg/m3
PM10: 8.45 μg/m3
Carbon Monoxide: 197.85 μg/m3
Nitrogen Dioxide: 12.25 μg/m3
Sulphur Dioxide: 4.05 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 12:55 AM
Sunset: 7:24 PM
Daylight: 12 hrs 58 mins
Moonrise: 12:31 AM
Moon Transit: 4:49 AM
Moonset: 9:07 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
7:03 PM - 9:33 PM

Minor Periods

8:37 AM - 10:07 AM
12:01 AM - 1:31 AM

Action Rating: 4 out of 5

Freeze Watch issued April 7 at 2:12AM EDT until April 8 at 10:00AM EDT by NWS Upton NY

Effective: Tue April 7, 2026, 2:12 AM
Expires: Wed April 8, 2026, 2:30 AM

* WHAT...Sub-freezing temperatures as low as 31 possible. * WHERE...In New Jersey, Eastern Essex, Eastern Union, and Hudson Counties. In New York, Bronx, Northern Nassau, Richmond (Staten Island), and Southern Nassau Counties. * WHEN...From late tonight through Wednesday morning. * IMPACTS...Frost and freeze conditions could kill sensitive vegetation.

Take steps now to protect tender plants from the cold.
Tuesday, April 7, 2026

Weather Forecast

Sunny
50°F
34.9°F
43.4°F
63%
0 in
0%
0%
19.5 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 8.88 μg/m3
PM10: 9.45 μg/m3
Carbon Monoxide: 190.33 μg/m3
Nitrogen Dioxide: 13.82 μg/m3
Sulphur Dioxide: 3.03 μg/m3
Ozone: 73.2 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 12:55 AM
Sunset: 7:24 PM
Daylight: 12 hrs 58 mins
Moonrise: 12:31 AM
Moon Transit: 4:49 AM
Moonset: 9:07 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
7:03 PM - 9:33 PM

Minor Periods

8:37 AM - 10:07 AM
12:01 AM - 1:31 AM

Action Rating: 4 out of 5

Wednesday, April 8, 2026

Weather Forecast

Sunny
43.7°F
30°F
36.9°F
59%
0 in
0%
0%
13 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 4.58 μg/m3
PM10: 5.28 μg/m3
Carbon Monoxide: 178.49 μg/m3
Nitrogen Dioxide: 6.39 μg/m3
Sulphur Dioxide: 2.17 μg/m3
Ozone: 87.56 μg/m3

Astronomical

Sunrise: 6:25 AM
Sun Transit: 12:54 AM
Sunset: 7:26 PM
Daylight: 13 hrs mins
Moonrise: 1:25 AM
Moon Transit: 5:41 AM
Moonset: 9:58 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

5:11 AM - 7:41 AM
7:55 PM - 10:25 PM

Minor Periods

9:28 AM - 10:58 AM
12:55 AM - 2:25 AM

Action Rating: 3 out of 5

Thursday, April 9, 2026

Weather Forecast

Partly Cloudy
39°F
36.9°F
37.7°F
90%
0 in
0%
0%
7.8 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 9.47 μg/m3
PM10: 12.53 μg/m3
Carbon Monoxide: 189.41 μg/m3
Nitrogen Dioxide: 12.16 μg/m3
Sulphur Dioxide: 3.75 μg/m3
Ozone: 82.88 μg/m3

Astronomical

Sunrise: 6:23 AM
Sun Transit: 12:54 AM
Sunset: 7:27 PM
Daylight: 13 hrs 3 mins
Moonrise: 2:13 AM
Moon Transit: 6:32 AM
Moonset: 10:55 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

6:02 AM - 8:32 AM
8:46 PM - 11:16 PM

Minor Periods

10:25 AM - 11:55 AM
1:43 AM - 3:13 AM

Action Rating: 3 out of 5

Friday, April 10, 2026

Weather Forecast

Sunny
55.3°F
37.8°F
45.9°F
68%
0 in
0%
0%
8.1 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 11.77 μg/m3
PM10: 15.01 μg/m3
Carbon Monoxide: 236.15 μg/m3
Nitrogen Dioxide: 12.51 μg/m3
Sulphur Dioxide: 4.61 μg/m3
Ozone: 81.52 μg/m3

Astronomical

Sunrise: 6:22 AM
Sun Transit: 12:54 AM
Sunset: 7:28 PM
Daylight: 13 hrs 6 mins
Moonrise: 2:53 AM
Moon Transit: 7:23 AM
Moonset: 11:58 AM
Moon Phase: Last Quarter
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

6:53 AM - 9:23 AM
12:00 AM - 12:00 AM

Minor Periods

11:28 AM - 12:58 AM
2:23 AM - 3:53 AM

Action Rating: 2 out of 5

Saturday, April 11, 2026

Weather Forecast

Sunny
64.3°F
45.5°F
51.9°F
65%
0 in
0%
0%
13 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 13.86 μg/m3
PM10: 15.24 μg/m3
Carbon Monoxide: 210.9 μg/m3
Nitrogen Dioxide: 19.07 μg/m3
Sulphur Dioxide: 5.06 μg/m3
Ozone: 61.69 μg/m3

Astronomical

Sunrise: 6:20 AM
Sun Transit: 12:54 AM
Sunset: 7:29 PM
Daylight: 13 hrs 8 mins
Moonrise: 3:26 AM
Moon Transit: 8:11 AM
Moonset: 1:04 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

7:41 AM - 10:11 AM
12:00 AM - 12:00 AM

Minor Periods

12:34 AM - 2:04 PM
2:56 AM - 4:26 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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