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

73°F

Conditions: Mist

Feels Like: 77.4°F

Heat Index: 69.8°F

Humidity: 90%

Wind: S 2.2 mph

Wind Gusts: 3.3 mph

Wind Chill: 69.8°F

Dew Point: 68.4°F

Precipitation: 0 in

Cloud Cover: 75%

Visibility: 1 mi

Air Pressure: 1015 mbar

UV Index: 0.2

Five Day Weather Forecast

Sat
H: 82°F
L: 67°F

Sun
H: 83°F
L: 67°F

Mon
H: 80°F
L: 61°F

Tue
H: 82°F
L: 68°F

Wed
H: 83°F
L: 69°F

Air Quality

AQI: 1 - Good

PM2.5: 53.3 μg/m3

PM10: 55.5 μg/m3

Carbon Monoxide: 158 μg/m3
Nitrogen Dioxide: 12.2 μg/m3
Sulphur Dioxide: 1.8 μg/m3
Ozone: 81 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:00 PM
Sunset: 8:23 PM
Daylight: 14 hrs 47 mins

Moonrise: 10:31 AM
Moon Transit: 4:46 PM
Moonset: 10:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

6:11 AM - 8:41 AM
4:16 PM - 6:46 PM

Minor Periods

10:20 PM - 11:50 PM
10:01 AM - 11:31 AM

Action Rating: 2 out of 5

Small Craft Advisory issued July 17 at 2:36PM EDT until July 19 at 12:00AM EDT by NWS Upton NY

Effective: Fri July 17, 2026, 2:36 PM
Expires: Sat July 18, 2026, 6:00 AM

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt. * WHERE...Long Island Sound east of Port Jefferson and New Haven, Peconic and Gardiners Bays, and South Shore Bays from Jones Inlet through Shinnecock Bay. * WHEN...From noon Saturday to midnight EDT Saturday night. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.

Small Craft Advisory issued July 18 at 2:32AM EDT until July 19 at 12:00AM EDT by NWS Upton NY

Effective: Sat July 18, 2026, 2:32 AM
Expires: Sat July 18, 2026, 5:00 PM

* WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt. * WHERE...Long Island Sound east of Port Jefferson and New Haven, Peconic and Gardiners Bays, and South Shore Bays from Jones Inlet through Shinnecock Bay. * WHEN...From noon today 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.

Saturday, July 18, 2026

Weather Forecast

Conditions: Smoky haze

High Temperature: 82.4°F

Low Temperature: 67.3°F

Average Temperature: 73.6°F

Average Humidity: 84%

Precipitation: 0.03 in

Chance of Rain: 45%

Chance of Snow: 0%

Maximum Wind: 13.6 mph

UV Index: 3.5

Air Quality

AQI: 3 - Unhealthy for Sensitive Groups

PM2.5: 43.18 μg/m3

PM10: 45.1 μg/m3

Carbon Monoxide: 157.58 μg/m3
Nitrogen Dioxide: 12.04 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 98.75 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:00 PM
Sunset: 8:23 PM
Daylight: 14 hrs 47 mins

Moonrise: 10:31 AM
Moon Transit: 4:46 PM
Moonset: 10:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

6:11 AM - 8:41 AM
4:16 PM - 6:46 PM

Minor Periods

10:20 PM - 11:50 PM
10:01 AM - 11:31 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 82.5°F

Low Temperature: 66.5°F

Average Temperature: 74.6°F

Average Humidity: 65%

Precipitation: 0.02 in

Chance of Rain: 36%

Chance of Snow: 0%

Maximum Wind: 13.9 mph

UV Index: 7.9

Air Quality

AQI: 1 - Good

PM2.5: 6.99 μg/m3

PM10: 7.05 μg/m3

Carbon Monoxide: 198.29 μg/m3
Nitrogen Dioxide: 3.85 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 84.92 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:00 PM
Sunset: 8:22 PM
Daylight: 14 hrs 45 mins

Moonrise: 11:38 AM
Moon Transit: 5:30 PM
Moonset: 11:11 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

6:56 AM - 9:26 AM
5:00 PM - 7:30 PM

Minor Periods

12:00 AM - 12:00 AM
11:08 AM - 12:38 AM

Action Rating: 2 out of 5

Monday, July 20, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 79.9°F

Low Temperature: 61.3°F

Average Temperature: 70.8°F

Average Humidity: 54%

Precipitation: 0 in

Chance of Rain: 3%

Chance of Snow: 0%

Maximum Wind: 11 mph

UV Index: 8.6

Air Quality

AQI: 1 - Good

PM2.5: 7.01 μg/m3

PM10: 7.47 μg/m3

Carbon Monoxide: 154.33 μg/m3
Nitrogen Dioxide: 5.56 μg/m3
Sulphur Dioxide: 0.69 μg/m3
Ozone: 86 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:00 PM
Sunset: 8:21 PM
Daylight: 14 hrs 43 mins

Moonrise: 12:44 AM
Moon Transit: 6:13 PM
Moonset: 12:11 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

7:39 AM - 10:09 AM
5:43 PM - 8:13 PM

Minor Periods

12:14 AM - 1:44 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, July 21, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 81.7°F

Low Temperature: 67.5°F

Average Temperature: 73.9°F

Average Humidity: 77%

Precipitation: 1.07 in

Chance of Rain: 77%

Chance of Snow: 0%

Maximum Wind: 16.3 mph

UV Index: 5

Air Quality

AQI: 1 - Good

PM2.5: 10.33 μg/m3

PM10: 12.87 μg/m3

Carbon Monoxide: 152.41 μg/m3
Nitrogen Dioxide: 7.12 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 88.96 μg/m3

Astronomical

Sunrise: 5:39 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

Conditions: Patchy rain nearby

High Temperature: 82.8°F

Low Temperature: 69.2°F

Average Temperature: 75.6°F

Average Humidity: 75%

Precipitation: 0.29 in

Chance of Rain: 73%

Chance of Snow: 0%

Maximum Wind: 15 mph

UV Index: 7

Air Quality

AQI: 1 - Good

PM2.5: 3.09 μg/m3

PM10: 3.47 μg/m3

Carbon Monoxide: 179.56 μg/m3
Nitrogen Dioxide: 8.24 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 70.78 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

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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Water Temperature of the Mill River in Fairfield, CT

Current Water Temperature

Temperature Locations

Local Points of Interest

Nearby Water Temperatures

Weather for Fairfield, Connecticut

Current Weather

Five Day Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Small Craft Advisory issued July 17 at 2:36PM EDT until July 19 at 12:00AM EDT by NWS Upton NY

Small Craft Advisory issued July 18 at 2:32AM EDT until July 19 at 12:00AM EDT by NWS Upton NY

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Webcams Near Fairfield, CT

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