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

73°F
Partly cloudy
Partly cloudy
77.1°F
79.9°F
96%
SSW 12.8 mph
22.9 mph
75.7°F
72°F
0 in
50%
6 mi
1006 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 82°F
L: 68°F
Partly Cloudy
Wed
H: 81°F
L: 68°F
Sunny
Thu
H: 78°F
L: 59°F
Sunny
Fri
H: 78°F
L: 61°F
Sunny
Sat
H: 79°F
L: 61°F

Air Quality

AQI: 1 - Good
PM2.5: 6.9 μg/m3
PM10: 8.3 μg/m3
Carbon Monoxide: 135 μg/m3
Nitrogen Dioxide: 6.7 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 83 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:00 PM
Sunset: 8:20 PM
Daylight: 14 hrs 42 mins
Moonrise: 1:49 PM
Moon Transit: 6:57 PM
Moonset: 12:33 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

8:23 AM - 10:53 AM
6:27 PM - 8:57 PM

Minor Periods

1:19 PM - 2:49 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tornado Watch issued July 21 at 2:08PM EDT until July 21 at 9:00PM EDT by NWS Upton NY

Effective: Tue July 21, 2026, 2:08 PM
Expires: Tue July 21, 2026, 9:00 PM

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 507 IN EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS LONG ISLAND SOUND WEST OF NEW HAVEN CT/PORT JEFFERSON NY NEW YORK HARBOR
Tuesday, July 21, 2026

Weather Forecast

Sunny
82°F
68°F
73.4°F
83%
1.05 in
77%
0%
13.6 mph
5.8


Air Quality

AQI: 1 - Good
PM2.5: 11.53 μg/m3
PM10: 14.1 μg/m3
Carbon Monoxide: 145.29 μg/m3
Nitrogen Dioxide: 4.73 μg/m3
Sulphur Dioxide: 0.89 μg/m3
Ozone: 95.88 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:00 PM
Sunset: 8:20 PM
Daylight: 14 hrs 42 mins
Moonrise: 1:49 PM
Moon Transit: 6:57 PM
Moonset: 12:33 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

8:23 AM - 10:53 AM
6:27 PM - 8:57 PM

Minor Periods

1:19 PM - 2:49 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 22, 2026

Weather Forecast

Partly Cloudy
80.6°F
67.6°F
74°F
72%
0.05 in
57%
0%
13.4 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 5.83 μg/m3
PM10: 6 μg/m3
Carbon Monoxide: 165.38 μg/m3
Nitrogen Dioxide: 5.69 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 92.67 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:00 PM
Sunset: 8:19 PM
Daylight: 14 hrs 40 mins
Moonrise: 2:54 PM
Moon Transit: 7:43 PM
Moonset: 12:58 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

9:08 AM - 11:38 AM
7:13 PM - 9:43 PM

Minor Periods

2:24 PM - 3:54 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
78.2°F
59.4°F
68.7°F
56%
0 in
3%
0%
7.2 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 2.99 μg/m3
PM10: 3.03 μg/m3
Carbon Monoxide: 137.71 μg/m3
Nitrogen Dioxide: 5.18 μg/m3
Sulphur Dioxide: 0.43 μg/m3
Ozone: 63.42 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:00 PM
Sunset: 8:19 PM
Daylight: 14 hrs 38 mins
Moonrise: 3:57 PM
Moon Transit: 8:31 PM
Moonset: 12:26 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

9:55 AM - 12:25 AM
8:01 PM - 10:31 PM

Minor Periods

3:27 PM - 4:57 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
78.1°F
61.3°F
69.9°F
58%
0 in
3%
0%
9.4 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 7.91 μg/m3
PM10: 8.32 μg/m3
Carbon Monoxide: 139.15 μg/m3
Nitrogen Dioxide: 9.48 μg/m3
Sulphur Dioxide: 0.54 μg/m3
Ozone: 76.46 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:00 PM
Sunset: 8:18 PM
Daylight: 14 hrs 37 mins
Moonrise: 4:59 PM
Moon Transit: 9:20 PM
Moonset: 1:00 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

10:44 AM - 1:14 PM
8:50 PM - 11:20 PM

Minor Periods

4:29 PM - 5:59 PM
12:30 AM - 2:00 AM

Action Rating: 2 out of 5

Saturday, July 25, 2026

Weather Forecast

Sunny
78.6°F
60.8°F
69.7°F
58%
0 in
3%
0%
10.1 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 8.12 μg/m3
PM10: 9.67 μg/m3
Carbon Monoxide: 186.22 μg/m3
Nitrogen Dioxide: 11.64 μg/m3
Sulphur Dioxide: 0.68 μg/m3
Ozone: 58.11 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 1:00 PM
Sunset: 8:17 PM
Daylight: 14 hrs 35 mins
Moonrise: 5:55 PM
Moon Transit: 10:12 PM
Moonset: 1:40 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

11:34 AM - 2:04 PM
12:00 AM - 12:00 AM

Minor Periods

5:25 PM - 6:55 PM
1:10 AM - 2:40 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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