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

61°F
Clear
Clear
61°F
60.7°F
83%
WSW 5.6 mph
11.7 mph
60.7°F
55°F
0 in
0%
9 mi
1012 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Sat
H: 89°F
L: 60°F
Patchy rain nearby
Sun
H: 79°F
L: 63°F
Sunny
Mon
H: 77°F
L: 54°F
Sunny
Tue
H: 82°F
L: 59°F
Sunny
Wed
H: 83°F
L: 61°F

Air Quality

AQI: 1 - Good
PM2.5: 21.8 μg/m3
PM10: 22.9 μg/m3
Carbon Monoxide: 215 μg/m3
Nitrogen Dioxide: 27.1 μg/m3
Sulphur Dioxide: 3 μg/m3
Ozone: 63 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:51 AM
Sunset: 8:23 PM
Daylight: 15 hrs 2 mins
Moonrise: 12:23 AM
Moon Transit: 5:33 AM
Moonset: 10:52 AM
Moon Phase: Last Quarter
Moon Illumination: 53.9%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
7:42 PM - 10:12 PM

Minor Periods

10:22 AM - 11:52 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Air Quality Alert issued June 5 at 10:59PM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Fri June 5, 2026, 10:59 PM
Expires: Sat June 6, 2026, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Southern Fairfield, Southern New Haven, Southern Middlesex, Southern New London. from 11 AM to 11 PM EDT Saturday. An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi


Air Quality Alert issued June 5 at 10:59PM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Fri June 5, 2026, 10:59 PM
Expires: Sat June 6, 2026, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Northern Fairfield, Northern New Haven, Northern Middlesex, Northern New London. from 11 AM to 11 PM EDT Saturday. An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi


Air Quality Alert issued June 5 at 10:59PM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Fri June 5, 2026, 10:59 PM
Expires: Sat June 6, 2026, 11:00 PM

The New York State Department of Environmental Conservation has issued an Air Quality Health Advisory for the following counties: New York, Bronx, Kings, Queens, Richmond, Nassau, Suffolk, Westchester, Rockland. from 11 AM to 11 PM EDT Saturday. Air quality levels in outdoor air are predicted to be greater than an Air Quality Index value of 100 for the pollutant of Ground Level Ozone. The Air Quality Index, or AQI, was created as an easy way to correlate levels of different pollutants to one scale. The higher the AQI value, the greater the health concern. When pollution levels are elevated, the New York State Department of Health recommends that individuals consider limiting strenuous outdoor physical activity to reduce the risk of adverse health effects. People who may be especially sensitive to the effects of elevated levels of pollutants include the very young, and those with preexisting respiratory problems such as asthma or heart disease. Those with symptoms should consider consulting their personal physician. For additional information, please visit the New York State Department of Environmental Conservation website at, https://on.ny.gov/nyaqi, or call the Air Quality Hotline at 1 800 5 3 5, 1 3 4 5.


Rip Current Statement issued June 5 at 2:58PM EDT until June 6 at 9:00PM EDT by NWS Upton NY

Effective: Fri June 5, 2026, 2:58 PM
Expires: Sat June 6, 2026, 5:00 AM

* WHAT...Dangerous rip currents expected. * WHERE...Kings (Brooklyn), Southwest Suffolk, Southeast Suffolk, Southern Queens and Southern Nassau Counties along the ocean beaches. * WHEN...From Saturday morning through Saturday evening. * IMPACTS...Life-threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water.

If you enter the surf zone, always have a flotation device with you and swim near a lifeguard. If caught in a rip current, relax and float, and do not swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and yell or wave for help.


Saturday, June 6, 2026

Weather Forecast

Patchy rain nearby
89.1°F
60.3°F
73.2°F
66%
0.03 in
73%
0%
15.4 mph
8.5


Air Quality

AQI: 2 - Moderate
PM2.5: 16.69 μg/m3
PM10: 18.42 μg/m3
Carbon Monoxide: 182.83 μg/m3
Nitrogen Dioxide: 13.1 μg/m3
Sulphur Dioxide: 2.18 μg/m3
Ozone: 123.13 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:51 AM
Sunset: 8:23 PM
Daylight: 15 hrs 2 mins
Moonrise: 12:23 AM
Moon Transit: 5:33 AM
Moonset: 10:52 AM
Moon Phase: Last Quarter
Moon Illumination: 53.9%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
7:42 PM - 10:12 PM

Minor Periods

10:22 AM - 11:52 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, June 7, 2026

Weather Forecast

Patchy rain nearby
79.2°F
63.4°F
70.3°F
71%
0.05 in
73%
0%
15.7 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 2.3 μg/m3
PM10: 2.53 μg/m3
Carbon Monoxide: 135.96 μg/m3
Nitrogen Dioxide: 3.21 μg/m3
Sulphur Dioxide: 0.45 μg/m3
Ozone: 84.54 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:52 AM
Sunset: 8:24 PM
Daylight: 15 hrs 3 mins
Moonrise: 12:46 AM
Moon Transit: 6:16 AM
Moonset: 11:57 AM
Moon Phase: Last Quarter
Moon Illumination: 42.6%

Best Times for Fishing or Hunting

Major Periods

5:46 AM - 8:16 AM
8:26 PM - 10:56 PM

Minor Periods

11:27 AM - 12:57 AM
12:16 AM - 1:46 AM

Action Rating: 4 out of 5

Monday, June 8, 2026

Weather Forecast

Sunny
77°F
53.7°F
65.6°F
54%
0 in
1%
0%
11 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 2.7 μg/m3
PM10: 3.1 μg/m3
Carbon Monoxide: 130.13 μg/m3
Nitrogen Dioxide: 3.97 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 80.92 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:52 AM
Sunset: 8:24 PM
Daylight: 15 hrs 4 mins
Moonrise: 1:08 AM
Moon Transit: 12:00 AM
Moonset: 1:03 PM
Moon Phase: Last Quarter
Moon Illumination: 31.6%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

12:33 AM - 2:03 PM
12:38 AM - 2:08 AM

Action Rating: 2 out of 5

Tuesday, June 9, 2026

Weather Forecast

Sunny
82°F
59.2°F
69.5°F
51%
0 in
0%
0%
11.6 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 9.68 μg/m3
PM10: 12.04 μg/m3
Carbon Monoxide: 136.1 μg/m3
Nitrogen Dioxide: 10.07 μg/m3
Sulphur Dioxide: 1.59 μg/m3
Ozone: 89.63 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:52 AM
Sunset: 8:25 PM
Daylight: 15 hrs 5 mins
Moonrise: 1:29 AM
Moon Transit: 6:27 AM
Moonset: 2:12 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%

Best Times for Fishing or Hunting

Major Periods

5:57 AM - 8:27 AM
5:57 AM - 8:27 AM

Minor Periods

1:42 PM - 3:12 PM
12:59 AM - 2:29 AM

Action Rating: 2 out of 5

Wednesday, June 10, 2026

Weather Forecast

Sunny
82.5°F
61°F
70.1°F
62%
0 in
1%
0%
10.5 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 8.01 μg/m3
PM10: 10.14 μg/m3
Carbon Monoxide: 170.33 μg/m3
Nitrogen Dioxide: 11.1 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 65.33 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:52 AM
Sunset: 8:26 PM
Daylight: 15 hrs 6 mins
Moonrise: 1:51 AM
Moon Transit: 8:30 AM
Moonset: 3:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.1%

Best Times for Fishing or Hunting

Major Periods

8:00 AM - 10:30 AM
12:00 AM - 12:00 AM

Minor Periods

2:53 PM - 4:23 PM
1:21 AM - 2:51 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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