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

84.9°F
Sunny
Sunny
86.5°F
94.8°F
51%
WSW 8.5 mph
13.5 mph
90.1°F
67.5°F
0 in
0%
9 mi
1018 mbar
9.5

Five Day Weather Forecast

Sunny
Tue
H: 90°F
L: 66°F
Sunny
Wed
H: 92°F
L: 70°F
Sunny
Thu
H: 97°F
L: 74°F
Sunny
Fri
H: 98°F
L: 77°F
Sunny
Sat
H: 96°F
L: 71°F

Air Quality

AQI: 1 - Good
PM2.5: 13.3 μg/m3
PM10: 13.7 μg/m3
Carbon Monoxide: 194 μg/m3
Nitrogen Dioxide: 2 μg/m3
Sulphur Dioxide: 1.9 μg/m3
Ozone: 180 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 12:56 AM
Sunset: 8:30 PM
Daylight: 15 hrs 6 mins
Moonrise: 9:26 PM
Moon Transit: 1:08 AM
Moonset: 5:33 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

12:38 AM - 3:08 AM
3:22 PM - 5:52 PM

Minor Periods

8:56 PM - 10:26 PM
5:03 AM - 6:33 AM

Action Rating: 5 out of 5

Small Craft Advisory issued June 30 at 2:44AM EDT until July 1 at 12:00AM EDT by NWS Upton NY

Effective: Tue June 30, 2026, 2:44 AM
Expires: Tue June 30, 2026, 5:00 PM

* WHAT...South winds 10 to 20 kt with gusts between 25 and 30 knots. Seas 3 to 5 feet expected on ocean waters west of Fire island Inlet and 2 to 3 feet on western Long Island Sound. * WHERE...Long Island Sound west of Port Jefferson and New Haven, New York Harbor, South Shore Bays from Jones Inlet through Shinnecock Bay, and Sandy Hook NJ to Fire Island Inlet NY out 20 NM. * WHEN...From 2 PM this afternoon to midnight EDT tonight. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Tuesday, June 30, 2026

Weather Forecast

Sunny
90.1°F
65.8°F
76.2°F
68%
0.02 in
36%
0%
13.2 mph
9.5


Air Quality

AQI: 1 - Good
PM2.5: 12.12 μg/m3
PM10: 12.7 μg/m3
Carbon Monoxide: 157.29 μg/m3
Nitrogen Dioxide: 10.3 μg/m3
Sulphur Dioxide: 1.71 μg/m3
Ozone: 115.04 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 12:56 AM
Sunset: 8:30 PM
Daylight: 15 hrs 6 mins
Moonrise: 9:26 PM
Moon Transit: 1:08 AM
Moonset: 5:33 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

12:38 AM - 3:08 AM
3:22 PM - 5:52 PM

Minor Periods

8:56 PM - 10:26 PM
5:03 AM - 6:33 AM

Action Rating: 5 out of 5

Wednesday, July 1, 2026

Weather Forecast

Sunny
91.6°F
70.4°F
79.3°F
62%
0.03 in
36%
0%
14.8 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 13.35 μg/m3
PM10: 15.43 μg/m3
Carbon Monoxide: 138.88 μg/m3
Nitrogen Dioxide: 7.55 μg/m3
Sulphur Dioxide: 1.65 μg/m3
Ozone: 118.71 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 12:57 AM
Sunset: 8:30 PM
Daylight: 15 hrs 6 mins
Moonrise: 9:59 PM
Moon Transit: 1:58 AM
Moonset: 6:36 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

1:28 AM - 3:58 AM
4:10 PM - 6:40 PM

Minor Periods

9:29 PM - 10:59 PM
6:06 AM - 7:36 AM

Action Rating: 3 out of 5

Thursday, July 2, 2026

Weather Forecast

Sunny
97.1°F
74°F
84.8°F
61%
0.02 in
36%
0%
10.3 mph
9.7


Air Quality

AQI: 2 - Moderate
PM2.5: 15.97 μg/m3
PM10: 19.87 μg/m3
Carbon Monoxide: 185.5 μg/m3
Nitrogen Dioxide: 9.52 μg/m3
Sulphur Dioxide: 1.69 μg/m3
Ozone: 110.13 μg/m3

Astronomical

Sunrise: 5:25 AM
Sun Transit: 12:57 AM
Sunset: 8:30 PM
Daylight: 15 hrs 5 mins
Moonrise: 10:27 PM
Moon Transit: 2:46 AM
Moonset: 7:40 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:16 AM - 4:46 AM
4:57 PM - 7:27 PM

Minor Periods

9:57 PM - 11:27 PM
7:10 AM - 8:40 AM

Action Rating: 2 out of 5

Friday, July 3, 2026

Weather Forecast

Sunny
97.9°F
76.5°F
86.7°F
54%
0 in
4%
0%
11.6 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 11.33 μg/m3
PM10: 13.31 μg/m3
Carbon Monoxide: 162.67 μg/m3
Nitrogen Dioxide: 6.93 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 102.25 μg/m3

Astronomical

Sunrise: 5:25 AM
Sun Transit: 12:57 AM
Sunset: 8:30 PM
Daylight: 15 hrs 4 mins
Moonrise: 10:51 PM
Moon Transit: 3:31 AM
Moonset: 8:45 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

3:01 AM - 5:31 AM
5:41 PM - 8:11 PM

Minor Periods

10:21 PM - 11:51 PM
8:15 AM - 9:45 AM

Action Rating: 4 out of 5

Saturday, July 4, 2026

Weather Forecast

Sunny
96.4°F
71.1°F
81.2°F
69%
0.71 in
70%
0%
10.1 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 10.03 μg/m3
PM10: 10.99 μg/m3
Carbon Monoxide: 242.11 μg/m3
Nitrogen Dioxide: 9.43 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 75.11 μg/m3

Astronomical

Sunrise: 5:26 AM
Sun Transit: 12:57 AM
Sunset: 8:29 PM
Daylight: 15 hrs 4 mins
Moonrise: 11:12 PM
Moon Transit: 4:15 AM
Moonset: 9:49 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.6%

Best Times for Fishing or Hunting

Major Periods

3:45 AM - 6:15 AM
6:24 PM - 8:54 PM

Minor Periods

12:00 AM - 12:00 AM
9:19 AM - 10:49 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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