Water Temperature of the Mill River in Fairfield, CT

Current Water Temperature

46.4°F

Measurement Time: Tuesday, April 16, 2024, 6:18 AM EDT

Temperature Locations

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Local Points of Interest

Southport Harbor; Sasco Beach; Southport Beach; Atlantic Ocean; Southport, CT

Mill River

Station Name: MILL RIVER AT SOUTHPORT HARBOR NEAR SOUTHPORT, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
Country Club of Fairfield
Fairfield, CT 06855
Fairfield County

GPS Coordinates: 41.12479167, -73.2882083

Nearby Water Temperatures

Mill River, Southport, CT (0.6 mi)
Saugatuck River, Westport Village, CT (4.2 mi)
Saugatuck River, Westport, CT (4.3 mi)
Rooster River, Bridgeport, CT (5.2 mi)
Norwalk River, Norwalk, CT (6.4 mi)
Norwalk Harbor, Norwalk, CT (6.5 mi)
Bridgeport Harbor, Bridgeport, CT (6.5 mi)
Norwalk River, Norwalk, CT (6.8 mi)
Housatonic River, Stratford, CT (9.7 mi)
Flax Pond, Old Field, NY (13.5 mi)
Frost Creek, Lattingtown, NY (22 mi)
New Haven Harbor, New Haven, CT (22.6 mi)
Naugatuck River, Beacon Falls, CT (24.9 mi)
East Creek, Sands Point, NY (28.3 mi)
Great South Bay, West Sayville, NY (29.7 mi)

Weather for Fairfield, Connecticut

Current Weather

53.1°F
Overcast
Overcast
53.6°F
53.3°F
93%
WSW 2.5 mph
2.9 mph
53.2°F
52.1°F
0 in
100%
9 mi
1014 mbar
3.5

Five Day Weather Forecast

Patchy rain nearby
Sun
H: 67°F
L: 51°F
Patchy rain nearby
Mon
H: 56°F
L: 48°F
Sunny
Tue
H: 62°F
L: 43°F
Patchy rain nearby
Wed
H: 62°F
L: 46°F
Moderate rain
Thu
H: 59°F
L: 51°F

Air Quality

AQI: 1 - Good
PM2.5: 17.95 μg/m3
PM10: 18.75 μg/m3
Carbon Monoxide: 237.85 μg/m3
Nitrogen Dioxide: 6.95 μg/m3
Sulphur Dioxide: 7.55 μg/m3
Ozone: 145 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 12:49 AM
Sunset: 8:00 PM
Daylight: 14 hrs 20 mins
Moonrise: 2:21 AM
Moon Transit: 7:37 AM
Moonset: 1:03 PM
Moon Phase: Last Quarter
Moon Illumination: 26.2%

Best Times for Fishing or Hunting

Major Periods

7:07 AM - 9:37 AM
12:00 AM - 12:00 AM

Minor Periods

12:33 AM - 2:03 PM
1:51 AM - 3:21 AM

Action Rating: 2 out of 5

Special Weather Statement issued May 10 at 3:20AM EDT by NWS Upton NY

Effective: Sun May 10, 2026, 3:20 AM
Expires: Sun May 10, 2026, 9:00 AM

Areas of fog around the greater New York City metropolitan area could be locally dense overnight into early this morning, with visibility less than one quarter mile in spots. The low visibility could make driving conditions hazardous, so if out driving slow down, use your low beam headlights or fog lamps, and leave plenty of distance ahead of you.


Dense Fog Advisory issued May 10 at 5:59AM EDT until May 10 at 9:00AM EDT by NWS Upton NY

Effective: Sun May 10, 2026, 5:59 AM
Expires: Sun May 10, 2026, 9:00 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Suffolk County. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Sunday, May 10, 2026

Weather Forecast

Patchy rain nearby
67.1°F
51.1°F
56.7°F
91%
0.06 in
84%
0%
6.9 mph
6.5


Air Quality

AQI: 1 - Good
PM2.5: 15.44 μg/m3
PM10: 17.91 μg/m3
Carbon Monoxide: 190.21 μg/m3
Nitrogen Dioxide: 11.91 μg/m3
Sulphur Dioxide: 4.69 μg/m3
Ozone: 93.88 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 12:49 AM
Sunset: 8:00 PM
Daylight: 14 hrs 20 mins
Moonrise: 2:21 AM
Moon Transit: 7:37 AM
Moonset: 1:03 PM
Moon Phase: Last Quarter
Moon Illumination: 26.2%

Best Times for Fishing or Hunting

Major Periods

7:07 AM - 9:37 AM
12:00 AM - 12:00 AM

Minor Periods

12:33 AM - 2:03 PM
1:51 AM - 3:21 AM

Action Rating: 2 out of 5

Monday, May 11, 2026

Weather Forecast

Patchy rain nearby
55.9°F
47.8°F
52.3°F
66%
0.09 in
84%
0%
9.6 mph
4.7


Air Quality

AQI: 1 - Good
PM2.5: 5.76 μg/m3
PM10: 5.98 μg/m3
Carbon Monoxide: 209.09 μg/m3
Nitrogen Dioxide: 8.54 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 77.12 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 12:49 AM
Sunset: 8:01 PM
Daylight: 14 hrs 22 mins
Moonrise: 2:44 AM
Moon Transit: 8:21 AM
Moonset: 2:10 PM
Moon Phase: Last Quarter
Moon Illumination: 16.9%

Best Times for Fishing or Hunting

Major Periods

7:51 AM - 10:21 AM
12:00 AM - 12:00 AM

Minor Periods

1:40 PM - 3:10 PM
2:14 AM - 3:44 AM

Action Rating: 2 out of 5

Tuesday, May 12, 2026

Weather Forecast

Sunny
61.8°F
43.2°F
52.7°F
49%
0 in
0%
0%
10.7 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 2.71 μg/m3
PM10: 2.79 μg/m3
Carbon Monoxide: 164.17 μg/m3
Nitrogen Dioxide: 5.53 μg/m3
Sulphur Dioxide: 1.61 μg/m3
Ozone: 68.16 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 12:49 AM
Sunset: 8:02 PM
Daylight: 14 hrs 24 mins
Moonrise: 3:05 AM
Moon Transit: 9:41 PM
Moonset: 3:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.3%

Best Times for Fishing or Hunting

Major Periods

9:11 PM - 11:41 PM
9:11 PM - 11:41 PM

Minor Periods

2:49 PM - 4:19 PM
2:35 AM - 4:05 AM

Action Rating: 2 out of 5

Wednesday, May 13, 2026

Weather Forecast

Patchy rain nearby
62.3°F
46.2°F
53.9°F
58%
0.01 in
81%
0%
15 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 8.84 μg/m3
PM10: 10.27 μg/m3
Carbon Monoxide: 198.53 μg/m3
Nitrogen Dioxide: 17.8 μg/m3
Sulphur Dioxide: 3.22 μg/m3
Ozone: 64.92 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:49 AM
Sunset: 8:03 PM
Daylight: 14 hrs 26 mins
Moonrise: 3:27 AM
Moon Transit: 12:00 AM
Moonset: 4:32 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

4:02 PM - 5:32 PM
2:57 AM - 4:27 AM

Action Rating: 2 out of 5

Thursday, May 14, 2026

Weather Forecast

Moderate rain
59.2°F
50.7°F
54.2°F
88%
0.27 in
78%
0%
13.4 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 6.77 μg/m3
PM10: 8.8 μg/m3
Carbon Monoxide: 141.23 μg/m3
Nitrogen Dioxide: 4.84 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 101.31 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 12:49 AM
Sunset: 8:04 PM
Daylight: 14 hrs 28 mins
Moonrise: 3:52 AM
Moon Transit: 10:42 AM
Moonset: 5:47 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

12:05 AM - 2:35 AM
10:12 AM - 12:42 AM

Minor Periods

5:17 PM - 6:47 PM
3:22 AM - 4:52 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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