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

30°F
Clear
Clear
21.1°F
29.6°F
55%
N 10.3 mph
13.4 mph
21.5°F
16.8°F
0 in
0%
9 mi
1034 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 50°F
L: 30°F
Partly Cloudy
Thu
H: 43°F
L: 36°F
Cloudy
Fri
H: 49°F
L: 38°F
Partly Cloudy
Sat
H: 57°F
L: 45°F
Sunny
Sun
H: 54°F
L: 41°F

Air Quality

AQI: 1 - Good
PM2.5: 4.65 μg/m3
PM10: 5.25 μg/m3
Carbon Monoxide: 189.85 μg/m3
Nitrogen Dioxide: 5.65 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 79 μg/m3

Astronomical

Sunrise: 6:25 AM
Sun Transit: 12:54 AM
Sunset: 7:26 PM
Daylight: 13 hrs mins
Moonrise: 1:25 AM
Moon Transit: 5:41 AM
Moonset: 9:58 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

5:11 AM - 7:41 AM
7:55 PM - 10:25 PM

Minor Periods

9:28 AM - 10:58 AM
12:55 AM - 2:25 AM

Action Rating: 3 out of 5

Freeze Warning issued April 7 at 2:34PM EDT until April 8 at 8:00AM EDT by NWS Upton NY

Effective: Tue April 7, 2026, 2:34 PM
Expires: Wed April 8, 2026, 8:00 AM

* WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...In New Jersey, Eastern Essex, Eastern Union, and Hudson Counties. In New York, Bronx, Northern Nassau, Richmond (Staten Island), and Southern Nassau Counties. * WHEN...From midnight tonight to 8 AM EDT Wednesday. * IMPACTS...Freeze conditions could kill crops and other sensitive vegetation.

Take steps now to protect tender plants from the cold.


Freeze Warning issued April 7 at 2:34PM EDT until April 8 at 8:00AM EDT by NWS Upton NY

Effective: Tue April 7, 2026, 2:34 PM
Expires: Wed April 8, 2026, 8:00 AM

* WHAT...Sub-freezing temperatures as low as 32 expected. * WHERE...Kings (Brooklyn), New York (Manhattan), Northern Queens, and Southern Queens Counties. * WHEN...From midnight tonight to 8 AM EDT Wednesday. * IMPACTS...Freeze conditions could kill crops and other sensitive vegetation.

Take steps now to protect tender plants from the cold.
Wednesday, April 8, 2026

Weather Forecast

Sunny
49.6°F
29.5°F
38.5°F
47%
0 in
0%
0%
15.9 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 4.34 μg/m3
PM10: 5.09 μg/m3
Carbon Monoxide: 185.53 μg/m3
Nitrogen Dioxide: 6.03 μg/m3
Sulphur Dioxide: 1.94 μg/m3
Ozone: 85.08 μg/m3

Astronomical

Sunrise: 6:25 AM
Sun Transit: 12:54 AM
Sunset: 7:26 PM
Daylight: 13 hrs mins
Moonrise: 1:25 AM
Moon Transit: 5:41 AM
Moonset: 9:58 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

5:11 AM - 7:41 AM
7:55 PM - 10:25 PM

Minor Periods

9:28 AM - 10:58 AM
12:55 AM - 2:25 AM

Action Rating: 3 out of 5

Thursday, April 9, 2026

Weather Forecast

Partly Cloudy
42.6°F
36°F
38.9°F
81%
0 in
0%
0%
8.5 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 13.01 μg/m3
PM10: 16.18 μg/m3
Carbon Monoxide: 191.41 μg/m3
Nitrogen Dioxide: 20.9 μg/m3
Sulphur Dioxide: 4.48 μg/m3
Ozone: 71.32 μg/m3

Astronomical

Sunrise: 6:24 AM
Sun Transit: 12:54 AM
Sunset: 7:27 PM
Daylight: 13 hrs 3 mins
Moonrise: 2:13 AM
Moon Transit: 6:32 AM
Moonset: 10:55 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

6:02 AM - 8:32 AM
8:46 PM - 11:16 PM

Minor Periods

10:25 AM - 11:55 AM
1:43 AM - 3:13 AM

Action Rating: 3 out of 5

Friday, April 10, 2026

Weather Forecast

Cloudy
48.9°F
37.9°F
42.2°F
89%
0 in
0%
0%
8.3 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 14.45 μg/m3
PM10: 18.49 μg/m3
Carbon Monoxide: 202.81 μg/m3
Nitrogen Dioxide: 16.11 μg/m3
Sulphur Dioxide: 6.17 μg/m3
Ozone: 76.68 μg/m3

Astronomical

Sunrise: 6:22 AM
Sun Transit: 12:54 AM
Sunset: 7:28 PM
Daylight: 13 hrs 6 mins
Moonrise: 2:53 AM
Moon Transit: 7:23 AM
Moonset: 11:58 AM
Moon Phase: Last Quarter
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

6:53 AM - 9:23 AM
12:00 AM - 12:00 AM

Minor Periods

11:28 AM - 12:58 AM
2:23 AM - 3:53 AM

Action Rating: 2 out of 5

Saturday, April 11, 2026

Weather Forecast

Partly Cloudy
56.9°F
45.3°F
51.1°F
61%
0 in
0%
0%
14.5 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 6.85 μg/m3
PM10: 7.5 μg/m3
Carbon Monoxide: 201.44 μg/m3
Nitrogen Dioxide: 11.15 μg/m3
Sulphur Dioxide: 3.64 μg/m3
Ozone: 82.8 μg/m3

Astronomical

Sunrise: 6:20 AM
Sun Transit: 12:54 AM
Sunset: 7:29 PM
Daylight: 13 hrs 8 mins
Moonrise: 3:26 AM
Moon Transit: 8:11 AM
Moonset: 1:04 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

7:41 AM - 10:11 AM
12:00 AM - 12:00 AM

Minor Periods

12:34 AM - 2:04 PM
2:56 AM - 4:26 AM

Action Rating: 2 out of 5

Sunday, April 12, 2026

Weather Forecast

Sunny
53.9°F
40.7°F
46.9°F
55%
0 in
0%
0%
13.6 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 5.33 μg/m3
PM10: 5.49 μg/m3
Carbon Monoxide: 199.97 μg/m3
Nitrogen Dioxide: 8.79 μg/m3
Sulphur Dioxide: 2.12 μg/m3
Ozone: 75.77 μg/m3

Astronomical

Sunrise: 6:19 AM
Sun Transit: 12:53 AM
Sunset: 7:30 PM
Daylight: 13 hrs 11 mins
Moonrise: 3:55 AM
Moon Transit: 9:00 AM
Moonset: 2:12 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

1:42 PM - 3:12 PM
3:25 AM - 4:55 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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