Water Temperature of Norwalk Harbor in Norwalk, CT

Current Water Temperature

48.4°F

Measurement Time: Thursday, April 23, 2026, 1:54 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

41.7°F
Mist
Mist
39.9°F
40.6°F
100%
NW 3.4 mph
6.6 mph
38.4°F
37°F
0 in
0%
4 mi
1014 mbar
0

Five Day Weather Forecast

Sunny
Thu
H: 77°F
L: 39°F
Partly Cloudy
Fri
H: 53°F
L: 45°F
Moderate rain
Sat
H: 46°F
L: 41°F
Patchy rain nearby
Sun
H: 54°F
L: 42°F
Patchy rain nearby
Mon
H: 58°F
L: 43°F

Air Quality

AQI: 2 - Moderate
PM2.5: 13.45 μg/m3
PM10: 15.55 μg/m3
Carbon Monoxide: 229.85 μg/m3
Nitrogen Dioxide: 7.85 μg/m3
Sulphur Dioxide: 3.95 μg/m3
Ozone: 96 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 12:51 AM
Sunset: 7:42 PM
Daylight: 13 hrs 40 mins
Moonrise: 11:17 AM
Moon Transit: 7:05 PM
Moonset: 2:02 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

8:25 AM - 10:55 AM
6:35 PM - 9:05 PM

Minor Periods

10:47 AM - 12:17 AM
1:32 AM - 3:02 AM

Action Rating: 2 out of 5

Thursday, April 23, 2026

Weather Forecast

Sunny
77°F
39.2°F
56°F
62%
0 in
0%
0%
12.8 mph
6.1


Air Quality

AQI: 2 - Moderate
PM2.5: 15.98 μg/m3
PM10: 18.73 μg/m3
Carbon Monoxide: 213.01 μg/m3
Nitrogen Dioxide: 24.07 μg/m3
Sulphur Dioxide: 4.59 μg/m3
Ozone: 67.2 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 12:51 AM
Sunset: 7:42 PM
Daylight: 13 hrs 40 mins
Moonrise: 11:17 AM
Moon Transit: 7:05 PM
Moonset: 2:02 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

8:25 AM - 10:55 AM
6:35 PM - 9:05 PM

Minor Periods

10:47 AM - 12:17 AM
1:32 AM - 3:02 AM

Action Rating: 2 out of 5

Friday, April 24, 2026

Weather Forecast

Partly Cloudy
52.7°F
45.2°F
49.3°F
51%
0 in
0%
0%
8.7 mph
5.2


Air Quality

AQI: 1 - Good
PM2.5: 4.41 μg/m3
PM10: 5.58 μg/m3
Carbon Monoxide: 192.13 μg/m3
Nitrogen Dioxide: 8.87 μg/m3
Sulphur Dioxide: 2.31 μg/m3
Ozone: 80.88 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 12:51 AM
Sunset: 7:43 PM
Daylight: 13 hrs 42 mins
Moonrise: 12:32 AM
Moon Transit: 7:57 PM
Moonset: 2:41 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

9:19 AM - 11:49 AM
7:27 PM - 9:57 PM

Minor Periods

12:02 AM - 1:32 PM
2:11 AM - 3:41 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Moderate rain
46.4°F
41.3°F
43.4°F
80%
0.43 in
88%
0%
8.5 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 6.97 μg/m3
PM10: 8.12 μg/m3
Carbon Monoxide: 195.65 μg/m3
Nitrogen Dioxide: 16.29 μg/m3
Sulphur Dioxide: 3.17 μg/m3
Ozone: 69.68 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 12:51 AM
Sunset: 7:44 PM
Daylight: 13 hrs 45 mins
Moonrise: 1:44 PM
Moon Transit: 8:46 PM
Moonset: 3:10 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

10:09 AM - 12:39 AM
8:16 PM - 10:46 PM

Minor Periods

1:14 PM - 2:44 PM
2:40 AM - 4:10 AM

Action Rating: 2 out of 5

Sunday, April 26, 2026

Weather Forecast

Patchy rain nearby
53.5°F
42.1°F
47.4°F
84%
0.05 in
89%
0%
7.6 mph
4.2


Air Quality

AQI: 1 - Good
PM2.5: 5.02 μg/m3
PM10: 5.98 μg/m3
Carbon Monoxide: 182.8 μg/m3
Nitrogen Dioxide: 11.86 μg/m3
Sulphur Dioxide: 2.88 μg/m3
Ozone: 73.44 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 12:51 AM
Sunset: 7:45 PM
Daylight: 13 hrs 47 mins
Moonrise: 2:53 PM
Moon Transit: 9:30 PM
Moonset: 3:35 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%

Best Times for Fishing or Hunting

Major Periods

10:55 AM - 1:25 PM
9:00 PM - 11:30 PM

Minor Periods

2:23 PM - 3:53 PM
3:05 AM - 4:35 AM

Action Rating: 2 out of 5

Monday, April 27, 2026

Weather Forecast

Patchy rain nearby
58.3°F
42.5°F
48.8°F
77%
0.01 in
87%
0%
12.8 mph
0.8


Air Quality

AQI: 2 - Moderate
PM2.5: 17.98 μg/m3
PM10: 19.33 μg/m3
Carbon Monoxide: 285.68 μg/m3
Nitrogen Dioxide: 47 μg/m3
Sulphur Dioxide: 7.42 μg/m3
Ozone: 31.31 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 12:51 AM
Sunset: 7:46 PM
Daylight: 13 hrs 50 mins
Moonrise: 3:58 PM
Moon Transit: 10:13 PM
Moonset: 3:57 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%

Best Times for Fishing or Hunting

Major Periods

11:38 AM - 2:08 PM
12:00 AM - 12:00 AM

Minor Periods

3:28 PM - 4:58 PM
3:27 AM - 4:57 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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