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

66.9°F
Light rain
Light rain
66.9°F
76.9°F
93%
E 14.8 mph
22.4 mph
72.9°F
68.5°F
0 in
100%
2 mi
1018 mbar
2

Five Day Weather Forecast

Patchy rain nearby
Mon
H: 73°F
L: 67°F
Patchy rain nearby
Tue
H: 68°F
L: 64°F
Sunny
Wed
H: 76°F
L: 63°F
Patchy rain nearby
Thu
H: 80°F
L: 68°F
Partly Cloudy
Fri
H: 83°F
L: 69°F

Air Quality

AQI: 1 - Good
PM2.5: 4.7 μg/m3
PM10: 5.1 μg/m3
Carbon Monoxide: 143 μg/m3
Nitrogen Dioxide: 3.1 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 86 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 12:58 AM
Sunset: 8:29 PM
Daylight: 15 hrs 2 mins
Moonrise: 12:33 AM
Moon Transit: 1:15 PM
Moonset: 12:00 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%

Best Times for Fishing or Hunting

Major Periods

12:45 AM - 3:15 PM
12:45 AM - 3:15 PM

Minor Periods

11:30 AM - 1:00 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Small Craft Advisory issued July 6 at 2:41AM EDT until July 7 at 6:00AM EDT by NWS Upton NY

Effective: Mon July 6, 2026, 2:41 AM
Expires: Mon July 6, 2026, 6:00 PM

* WHAT...East winds 15 to 20 kt with gusts up to 30 kt and seas 2 to 4 feet expected. * WHERE...Long Island Sound, and Peconic and Gardiners Bays. * WHEN...From 6 AM this morning to 6 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Monday, July 6, 2026

Weather Forecast

Patchy rain nearby
72.9°F
66.9°F
68.7°F
91%
1.15 in
91%
0%
17.9 mph
2.5


Air Quality

AQI: 1 - Good
PM2.5: 6.44 μg/m3
PM10: 7.1 μg/m3
Carbon Monoxide: 136.96 μg/m3
Nitrogen Dioxide: 4.2 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 83.13 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 12:58 AM
Sunset: 8:29 PM
Daylight: 15 hrs 2 mins
Moonrise: 12:33 AM
Moon Transit: 1:15 PM
Moonset: 12:00 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%

Best Times for Fishing or Hunting

Major Periods

12:45 AM - 3:15 PM
12:45 AM - 3:15 PM

Minor Periods

11:30 AM - 1:00 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, July 7, 2026

Weather Forecast

Patchy rain nearby
67.6°F
63.7°F
65.4°F
92%
0.04 in
75%
0%
14.5 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 2.8 μg/m3
PM10: 3.07 μg/m3
Carbon Monoxide: 147.83 μg/m3
Nitrogen Dioxide: 4.01 μg/m3
Sulphur Dioxide: 0.39 μg/m3
Ozone: 72.29 μg/m3

Astronomical

Sunrise: 5:28 AM
Sun Transit: 12:58 AM
Sunset: 8:28 PM
Daylight: 15 hrs 1 mins
Moonrise: 12:54 AM
Moon Transit: 6:25 AM
Moonset: 1:08 PM
Moon Phase: Last Quarter
Moon Illumination: 37.3%

Best Times for Fishing or Hunting

Major Periods

5:55 AM - 8:25 AM
8:36 PM - 11:06 PM

Minor Periods

12:38 AM - 2:08 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Wednesday, July 8, 2026

Weather Forecast

Sunny
75.6°F
63.1°F
69.1°F
81%
0.01 in
26%
0%
10.3 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 6.37 μg/m3
PM10: 6.82 μg/m3
Carbon Monoxide: 139.71 μg/m3
Nitrogen Dioxide: 6.27 μg/m3
Sulphur Dioxide: 0.49 μg/m3
Ozone: 84.17 μg/m3

Astronomical

Sunrise: 5:28 AM
Sun Transit: 12:58 AM
Sunset: 8:28 PM
Daylight: 15 hrs mins
Moonrise: 12:18 AM
Moon Transit: 7:12 AM
Moonset: 2:21 PM
Moon Phase: Last Quarter
Moon Illumination: 26.8%

Best Times for Fishing or Hunting

Major Periods

6:42 AM - 9:12 AM
9:25 PM - 11:55 PM

Minor Periods

1:51 PM - 3:21 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 9, 2026

Weather Forecast

Patchy rain nearby
80.1°F
67.7°F
73.6°F
83%
0.07 in
63%
0%
11.6 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 12.68 μg/m3
PM10: 13.28 μg/m3
Carbon Monoxide: 182.19 μg/m3
Nitrogen Dioxide: 12.38 μg/m3
Sulphur Dioxide: 1.7 μg/m3
Ozone: 101.46 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 12:58 AM
Sunset: 8:28 PM
Daylight: 14 hrs 59 mins
Moonrise: 12:45 AM
Moon Transit: 8:03 AM
Moonset: 3:36 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%

Best Times for Fishing or Hunting

Major Periods

7:33 AM - 10:03 AM
12:00 AM - 12:00 AM

Minor Periods

3:06 PM - 4:36 PM
12:15 AM - 1:45 AM

Action Rating: 2 out of 5

Friday, July 10, 2026

Weather Forecast

Partly Cloudy
83.3°F
69°F
75.1°F
80%
0.04 in
57%
0%
11.9 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 12.4 μg/m3
PM10: 12.92 μg/m3
Carbon Monoxide: 270.89 μg/m3
Nitrogen Dioxide: 16.53 μg/m3
Sulphur Dioxide: 2.19 μg/m3
Ozone: 70.22 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 12:58 AM
Sunset: 8:27 PM
Daylight: 14 hrs 58 mins
Moonrise: 1:19 AM
Moon Transit: 9:00 AM
Moonset: 4:55 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%

Best Times for Fishing or Hunting

Major Periods

8:30 AM - 11:00 AM
12:00 AM - 12:00 AM

Minor Periods

4:25 PM - 5:55 PM
12:49 AM - 2:19 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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