Water Temperature of Norwalk Harbor in Norwalk, CT

Current Water Temperature

29.3°F

Measurement Time: Tuesday, January 27, 2026, 9:42 PM EST

Temperature Locations

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Local Points of Interest

Sheffield Island Harbor; Calf Pasture and Shady Beach; Long Island Sound

Norwalk Harbor

Station Name: NORWALK HARBOR AT THE COVE MARINA NR E NORWALK, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
52 Calf Pasture Beach Rd
Norwalk, CT 06855
Fairfield County

GPS Coordinates: 41.08395, -73.3999861

Nearby Water Temperatures

Norwalk River, Norwalk, CT (1.5 mi)
Norwalk River, Norwalk, CT (2 mi)
Saugatuck River, Westport, CT (2.2 mi)
Saugatuck River, Westport Village, CT (3.2 mi)
Mill River, Fairfield, CT (6.5 mi)
Mill River, Southport, CT (7 mi)
Rooster River, Bridgeport, CT (11.5 mi)
Bridgeport Harbor, Bridgeport, CT (12.9 mi)
Flax Pond, Old Field, NY (15.8 mi)
Frost Creek, Lattingtown, NY (15.9 mi)
Housatonic River, Stratford, CT (16.2 mi)
East Creek, Sands Point, NY (22.1 mi)
Long Island Sound, Kings Point, NY (26.8 mi)
Hudson River, Yonkers, NY (28.2 mi)
New Haven Harbor, New Haven, CT (29 mi)

Weather for Norwalk, Connecticut

Current Weather

1.9°F
Clear
Clear
-15.4°F
4.5°F
75%
WNW 12.5 mph
21.1 mph
-8.3°F
-7.2°F
0 in
0%
9 mi
1018 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 23°F
L: 4°F
Sunny
Thu
H: 27°F
L: 10°F
Sunny
Fri
H: 16°F
L: 10°F
Overcast
Sat
H: 21°F
L: -2°F
Blizzard
Sun
H: 24°F
L: 13°F

Air Quality

AQI: 1 - Good
PM2.5: 9.05 μg/m3
PM10: 9.15 μg/m3
Carbon Monoxide: 238.85 μg/m3
Nitrogen Dioxide: 9.35 μg/m3
Sulphur Dioxide: 2.55 μg/m3
Ozone: 65 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 12:06 AM
Sunset: 5:06 PM
Daylight: 9 hrs 58 mins
Moonrise: 12:15 AM
Moon Transit: 8:22 PM
Moonset: 3:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.1%

Best Times for Fishing or Hunting

Major Periods

9:39 AM - 12:09 AM
7:52 PM - 10:22 PM

Minor Periods

11:45 AM - 1:15 PM
2:52 AM - 4:22 AM

Action Rating: 2 out of 5

Cold Weather Advisory issued January 27 at 11:42PM EST until January 28 at 10:00AM EST by NWS Upton NY

Effective: Tue January 27, 2026, 11:42 PM
Expires: Wed January 28, 2026, 10:00 AM

* WHAT...Very cold wind chills as low as 7 below expected. * WHERE...Northern Nassau and Southern Nassau Counties. * WHEN...Until 10 AM EST Wednesday. * IMPACTS...The cold wind chills could result in hypothermia if precautions are not taken.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Cold Weather Advisory issued January 27 at 11:42PM EST until January 28 at 10:00AM EST by NWS Upton NY

Effective: Tue January 27, 2026, 11:42 PM
Expires: Wed January 28, 2026, 10:00 AM

* WHAT...Very cold wind chills as low as 6 below expected. * WHERE...Bronx, Kings (Brooklyn), New York (Manhattan), Northern Queens, Richmond (Staten Island), and Southern Queens Counties. * WHEN...Until 10 AM EST Wednesday. * IMPACTS...The cold wind chills could result in hypothermia if precautions are not taken.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Cold Weather Advisory issued January 27 at 11:42PM EST until January 28 at 10:00AM EST by NWS Upton NY

Effective: Tue January 27, 2026, 11:42 PM
Expires: Wed January 28, 2026, 10:00 AM

* WHAT...Very cold wind chills as low as 8 below expected. * WHERE...Eastern Essex, Eastern Union, Hudson, Western Essex, and Western Union Counties. * WHEN...Until 10 AM EST Wednesday. * IMPACTS...The cold wind chills could result in hypothermia if precautions are not taken.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.
Wednesday, January 28, 2026

Weather Forecast

Sunny
23°F
4.1°F
14.3°F
64%
0 in
0%
0%
12.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 13.1 μg/m3
PM10: 13.39 μg/m3
Carbon Monoxide: 273.29 μg/m3
Nitrogen Dioxide: 19.07 μg/m3
Sulphur Dioxide: 3.49 μg/m3
Ozone: 57 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 12:06 AM
Sunset: 5:06 PM
Daylight: 9 hrs 58 mins
Moonrise: 12:15 AM
Moon Transit: 8:22 PM
Moonset: 3:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.1%

Best Times for Fishing or Hunting

Major Periods

9:39 AM - 12:09 AM
7:52 PM - 10:22 PM

Minor Periods

11:45 AM - 1:15 PM
2:52 AM - 4:22 AM

Action Rating: 2 out of 5

Thursday, January 29, 2026

Weather Forecast

Sunny
26.8°F
10.2°F
17.5°F
65%
0 in
0%
0%
11.9 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 11.39 μg/m3
PM10: 11.59 μg/m3
Carbon Monoxide: 273.61 μg/m3
Nitrogen Dioxide: 21 μg/m3
Sulphur Dioxide: 2.62 μg/m3
Ozone: 51.8 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 12:06 AM
Sunset: 5:07 PM
Daylight: 10 hrs mins
Moonrise: 1:14 PM
Moon Transit: 9:26 PM
Moonset: 4:34 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.7%

Best Times for Fishing or Hunting

Major Periods

10:43 AM - 1:13 PM
8:56 PM - 11:26 PM

Minor Periods

12:44 AM - 2:14 PM
4:04 AM - 5:34 AM

Action Rating: 2 out of 5

Friday, January 30, 2026

Weather Forecast

Sunny
16°F
9.5°F
14°F
63%
0 in
0%
0%
13.6 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 4.84 μg/m3
PM10: 4.92 μg/m3
Carbon Monoxide: 197.29 μg/m3
Nitrogen Dioxide: 10.12 μg/m3
Sulphur Dioxide: 2.03 μg/m3
Ozone: 64.68 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:06 AM
Sunset: 5:08 PM
Daylight: 10 hrs 2 mins
Moonrise: 2:25 PM
Moon Transit: 10:30 PM
Moonset: 5:36 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.4%

Best Times for Fishing or Hunting

Major Periods

11:47 AM - 2:17 PM
12:00 AM - 12:00 AM

Minor Periods

1:55 PM - 3:25 PM
5:06 AM - 6:36 AM

Action Rating: 3 out of 5

Saturday, January 31, 2026

Weather Forecast

Overcast
20.8°F
-1.7°F
10.6°F
82%
0 in
0%
0%
18.3 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 8.21 μg/m3
PM10: 8.38 μg/m3
Carbon Monoxide: 213.51 μg/m3
Nitrogen Dioxide: 16.25 μg/m3
Sulphur Dioxide: 2.38 μg/m3
Ozone: 57.52 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 12:07 AM
Sunset: 5:09 PM
Daylight: 10 hrs 4 mins
Moonrise: 3:42 PM
Moon Transit: 11:30 PM
Moonset: 6:27 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.9%

Best Times for Fishing or Hunting

Major Periods

12:49 AM - 3:19 PM
12:00 AM - 12:00 AM

Minor Periods

3:12 PM - 4:42 PM
5:57 AM - 7:27 AM

Action Rating: 4 out of 5

Sunday, February 1, 2026

Weather Forecast

Blizzard
24.2°F
13°F
20.4°F
85%
0.1 in
85%
48%
29.5 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 6.5 μg/m3
PM10: 6.83 μg/m3
Carbon Monoxide: 217.83 μg/m3
Nitrogen Dioxide: 14.87 μg/m3
Sulphur Dioxide: 2.12 μg/m3
Ozone: 58.62 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 12:07 AM
Sunset: 5:10 PM
Daylight: 10 hrs 6 mins
Moonrise: 5:00 PM
Moon Transit: 12:00 AM
Moonset: 7:06 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:46 PM - 4:16 PM

Minor Periods

4:30 PM - 6:00 PM
6:36 AM - 8:06 AM

Action Rating: 4 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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