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

72.3°F
Clear
Clear
60.6°F
76.5°F
82%
SSW 8.1 mph
15.5 mph
72.3°F
66.6°F
0 in
2%
5 mi
1008 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 85°F
L: 65°F
Sunny
Tue
H: 75°F
L: 69°F
Patchy rain nearby
Wed
H: 81°F
L: 69°F
Patchy rain nearby
Thu
H: 73°F
L: 66°F
Patchy rain nearby
Fri
H: 74°F
L: 66°F

Air Quality

AQI: 1 - Good
PM2.5: 19.5 μg/m3
PM10: 21 μg/m3
Carbon Monoxide: 129 μg/m3
Nitrogen Dioxide: 14.1 μg/m3
Sulphur Dioxide: 2.1 μg/m3
Ozone: 118 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:00 PM
Sunset: 8:15 PM
Daylight: 14 hrs 31 mins
Moonrise: 7:26 PM
Moon Transit: 11:54 PM
Moonset: 3:25 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

1:17 PM - 3:47 PM
12:00 AM - 12:00 AM

Minor Periods

6:56 PM - 8:26 PM
2:55 AM - 4:25 AM

Action Rating: 3 out of 5

Small Craft Advisory issued July 27 at 2:56PM EDT until July 29 at 6:00AM EDT by NWS Upton NY

Effective: Mon July 27, 2026, 2:56 PM
Expires: Tue July 28, 2026, 4:00 AM

* WHAT...Southeast winds 15 to 20 kt with gusts up to 25 kt. * WHERE...Long Island Sound west of Port Jefferson and New Haven, New York Harbor, and South Shore Bays from Jones Inlet through Shinnecock Bay. * WHEN...From noon Tuesday to 6 AM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Monday, July 27, 2026

Weather Forecast

Sunny
84.7°F
64.6°F
74.5°F
77%
0 in
8%
0%
10.1 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 14.52 μg/m3
PM10: 16.55 μg/m3
Carbon Monoxide: 136.08 μg/m3
Nitrogen Dioxide: 9.23 μg/m3
Sulphur Dioxide: 1.68 μg/m3
Ozone: 112.71 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:00 PM
Sunset: 8:15 PM
Daylight: 14 hrs 31 mins
Moonrise: 7:26 PM
Moon Transit: 11:54 PM
Moonset: 3:25 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

1:17 PM - 3:47 PM
12:00 AM - 12:00 AM

Minor Periods

6:56 PM - 8:26 PM
2:55 AM - 4:25 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Sunny
75.4°F
69°F
70.8°F
91%
1.18 in
86%
0%
16.8 mph
4.9


Air Quality

AQI: 1 - Good
PM2.5: 13.45 μg/m3
PM10: 15.26 μg/m3
Carbon Monoxide: 129.88 μg/m3
Nitrogen Dioxide: 7.3 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 98.58 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:00 PM
Sunset: 8:14 PM
Daylight: 14 hrs 29 mins
Moonrise: 8:02 PM
Moon Transit: 12:00 AM
Moonset: 4:27 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:07 PM - 4:37 PM

Minor Periods

7:32 PM - 9:02 PM
3:57 AM - 5:27 AM

Action Rating: 4 out of 5

Wednesday, July 29, 2026

Weather Forecast

Patchy rain nearby
81.4°F
68.8°F
72.5°F
79%
0.09 in
67%
0%
15.4 mph
7.4


Air Quality

AQI: 1 - Good
PM2.5: 4.6 μg/m3
PM10: 4.83 μg/m3
Carbon Monoxide: 139 μg/m3
Nitrogen Dioxide: 5.13 μg/m3
Sulphur Dioxide: 0.91 μg/m3
Ozone: 90.08 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:00 PM
Sunset: 8:13 PM
Daylight: 14 hrs 27 mins
Moonrise: 8:31 PM
Moon Transit: 12:42 AM
Moonset: 5:31 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:12 AM - 2:42 AM
2:54 PM - 5:24 PM

Minor Periods

8:01 PM - 9:31 PM
5:01 AM - 6:31 AM

Action Rating: 4 out of 5

Thursday, July 30, 2026

Weather Forecast

Patchy rain nearby
73.4°F
66.3°F
68.3°F
86%
0.14 in
82%
0%
12.1 mph
5.7


Air Quality

AQI: 1 - Good
PM2.5: 1.5 μg/m3
PM10: 1.51 μg/m3
Carbon Monoxide: 126.42 μg/m3
Nitrogen Dioxide: 3.6 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 67.75 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:00 PM
Sunset: 8:12 PM
Daylight: 14 hrs 25 mins
Moonrise: 8:56 PM
Moon Transit: 1:29 AM
Moonset: 6:37 AM
Moon Phase: Full
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

12:59 AM - 3:29 AM
3:40 PM - 6:10 PM

Minor Periods

8:26 PM - 9:56 PM
6:07 AM - 7:37 AM

Action Rating: 5 out of 5

Friday, July 31, 2026

Weather Forecast

Patchy rain nearby
73.9°F
66.2°F
69°F
86%
0.1 in
77%
0%
10.1 mph
6.5


Air Quality

AQI: 1 - Good
PM2.5: 2.42 μg/m3
PM10: 2.43 μg/m3
Carbon Monoxide: 183.67 μg/m3
Nitrogen Dioxide: 3.51 μg/m3
Sulphur Dioxide: 0.46 μg/m3
Ozone: 56.22 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:00 PM
Sunset: 8:11 PM
Daylight: 14 hrs 23 mins
Moonrise: 9:18 PM
Moon Transit: 2:14 AM
Moonset: 7:42 AM
Moon Phase: Full
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

1:44 AM - 4:14 AM
4:23 PM - 6:53 PM

Minor Periods

8:48 PM - 10:18 PM
7:12 AM - 8:42 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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