Water Temperature of Norwalk Harbor in Norwalk, CT

Current Water Temperature

38.5°F

Measurement Time: Saturday, March 21, 2026, 7:54 AM EDT

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

53.1°F
Sunny
Sunny
49.9°F
52°F
48%
NNW 9.6 mph
12.3 mph
48°F
42.2°F
0 in
0%
9 mi
1012 mbar
4

Five Day Weather Forecast

Sunny
Sat
H: 58°F
L: 44°F
Moderate rain
Sun
H: 46°F
L: 38°F
Heavy rain
Mon
H: 42°F
L: 36°F
Sunny
Tue
H: 45°F
L: 30°F
Partly Cloudy
Wed
H: 52°F
L: 36°F

Air Quality

AQI: 2 - Moderate
PM2.5: 2.15 μg/m3
PM10: 2.45 μg/m3
Carbon Monoxide: 182.85 μg/m3
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 110 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 1:00 PM
Sunset: 7:07 PM
Daylight: 12 hrs 12 mins
Moonrise: 7:56 AM
Moon Transit: 3:11 PM
Moonset: 10:41 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

4:32 AM - 7:02 AM
2:41 PM - 5:11 PM

Minor Periods

10:11 PM - 11:41 PM
7:26 AM - 8:56 AM

Action Rating: 3 out of 5

Special Weather Statement issued March 21 at 5:28AM EDT by NWS Upton NY

Effective: Sat March 21, 2026, 5:28 AM
Expires: Sat March 21, 2026, 10:00 AM

Locally dense fog will impact the region this morning. Visibilities will be reduced locally to around one quarter mile or less at times. Extra caution should be used if traveling and utilize your low beam headlights.


Saturday, March 21, 2026

Weather Forecast

Sunny
57.6°F
43.5°F
48.3°F
73%
0 in
0%
0%
11.9 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 10.41 μg/m3
PM10: 10.61 μg/m3
Carbon Monoxide: 227.45 μg/m3
Nitrogen Dioxide: 14.91 μg/m3
Sulphur Dioxide: 4.86 μg/m3
Ozone: 82.72 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 1:00 PM
Sunset: 7:07 PM
Daylight: 12 hrs 12 mins
Moonrise: 7:56 AM
Moon Transit: 3:11 PM
Moonset: 10:41 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

4:32 AM - 7:02 AM
2:41 PM - 5:11 PM

Minor Periods

10:11 PM - 11:41 PM
7:26 AM - 8:56 AM

Action Rating: 3 out of 5

Sunday, March 22, 2026

Weather Forecast

Moderate rain
46.4°F
38.3°F
43.2°F
95%
0.55 in
84%
0%
12.1 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 13.69 μg/m3
PM10: 14.68 μg/m3
Carbon Monoxide: 257.01 μg/m3
Nitrogen Dioxide: 29.28 μg/m3
Sulphur Dioxide: 6.44 μg/m3
Ozone: 65.72 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:00 PM
Sunset: 7:08 PM
Daylight: 12 hrs 14 mins
Moonrise: 8:29 AM
Moon Transit: 4:07 PM
Moonset: 11:59 PM
Moon Phase: Waxing Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

5:27 AM - 7:57 AM
3:37 PM - 6:07 PM

Minor Periods

12:00 AM - 12:00 AM
7:59 AM - 9:29 AM

Action Rating: 2 out of 5

Monday, March 23, 2026

Weather Forecast

Heavy rain
41.5°F
36.3°F
40.5°F
80%
1.25 in
89%
0%
13 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 7.38 μg/m3
PM10: 7.47 μg/m3
Carbon Monoxide: 256.85 μg/m3
Nitrogen Dioxide: 15.07 μg/m3
Sulphur Dioxide: 3.34 μg/m3
Ozone: 75.56 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 1:00 PM
Sunset: 7:09 PM
Daylight: 12 hrs 17 mins
Moonrise: 9:09 AM
Moon Transit: 5:08 PM
Moonset: 12:59 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

6:25 AM - 8:55 AM
4:38 PM - 7:08 PM

Minor Periods

8:39 AM - 10:09 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Tuesday, March 24, 2026

Weather Forecast

Sunny
45.2°F
30.2°F
37.3°F
53%
0 in
0%
0%
13.6 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 5.9 μg/m3
PM10: 6.35 μg/m3
Carbon Monoxide: 185.77 μg/m3
Nitrogen Dioxide: 9.58 μg/m3
Sulphur Dioxide: 2.11 μg/m3
Ozone: 94.88 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 12:00 AM
Sunset: 7:10 PM
Daylight: 12 hrs 20 mins
Moonrise: 10:00 AM
Moon Transit: 6:10 PM
Moonset: 1:15 AM
Moon Phase: Waxing Crescent
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

7:27 AM - 9:57 AM
5:40 PM - 8:10 PM

Minor Periods

9:30 AM - 11:00 AM
12:45 AM - 2:15 AM

Action Rating: 2 out of 5

Wednesday, March 25, 2026

Weather Forecast

Partly Cloudy
51.8°F
36.2°F
42.8°F
56%
0 in
0%
0%
11.6 mph
0


Air Quality

AQI: 2 - Moderate
PM2.5: 16.01 μg/m3
PM10: 17.25 μg/m3
Carbon Monoxide: 280.4 μg/m3
Nitrogen Dioxide: 36.75 μg/m3
Sulphur Dioxide: 5.2 μg/m3
Ozone: 60.46 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 12:00 AM
Sunset: 7:11 PM
Daylight: 12 hrs 22 mins
Moonrise: 11:02 AM
Moon Transit: 7:13 PM
Moonset: 2:23 AM
Moon Phase: First Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

8:30 AM - 11:00 AM
6:43 PM - 9:13 PM

Minor Periods

10:32 AM - 12:02 AM
1:53 AM - 3:23 AM

Action Rating: 3 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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