Water Temperature of Norwalk Harbor in Norwalk, CT

Current Water Temperature

41.5°F

Measurement Time: Monday, March 30, 2026, 5:54 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

66.9°F
Partly cloudy
Partly cloudy
66.9°F
73.8°F
37%
SW 15 mph
22 mph
72.2°F
45.6°F
0 in
75%
9 mi
1020 mbar
2.3

Five Day Weather Forecast

Sunny
Mon
H: 78°F
L: 38°F
Thundery outbreaks in nearby
Tue
H: 71°F
L: 52°F
Heavy rain
Wed
H: 68°F
L: 49°F
Heavy rain
Thu
H: 48°F
L: 40°F
Patchy rain nearby
Fri
H: 65°F
L: 40°F

Air Quality

AQI: 1 - Good
PM2.5: 12.05 μg/m3
PM10: 12.65 μg/m3
Carbon Monoxide: 224.85 μg/m3
Nitrogen Dioxide: 16.45 μg/m3
Sulphur Dioxide: 8.05 μg/m3
Ozone: 83 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 12:00 AM
Sunset: 7:16 PM
Daylight: 12 hrs 36 mins
Moonrise: 5:01 PM
Moon Transit: 11:32 PM
Moonset: 5:30 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%

Best Times for Fishing or Hunting

Major Periods

12:57 AM - 3:27 PM
12:00 AM - 12:00 AM

Minor Periods

4:31 PM - 6:01 PM
5:00 AM - 6:30 AM

Action Rating: 3 out of 5

Monday, March 30, 2026

Weather Forecast

Sunny
77.9°F
37.6°F
57.3°F
55%
0 in
0%
0%
17.2 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 11.27 μg/m3
PM10: 11.89 μg/m3
Carbon Monoxide: 221.81 μg/m3
Nitrogen Dioxide: 19.95 μg/m3
Sulphur Dioxide: 7.07 μg/m3
Ozone: 76.24 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 12:00 AM
Sunset: 7:16 PM
Daylight: 12 hrs 36 mins
Moonrise: 5:01 PM
Moon Transit: 11:32 PM
Moonset: 5:30 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%

Best Times for Fishing or Hunting

Major Periods

12:57 AM - 3:27 PM
12:00 AM - 12:00 AM

Minor Periods

4:31 PM - 6:01 PM
5:00 AM - 6:30 AM

Action Rating: 3 out of 5

Tuesday, March 31, 2026

Weather Forecast

Thundery outbreaks in nearby
71.2°F
51.6°F
59.1°F
81%
0 in
0%
0%
13.6 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 15.39 μg/m3
PM10: 15.81 μg/m3
Carbon Monoxide: 247.81 μg/m3
Nitrogen Dioxide: 25.91 μg/m3
Sulphur Dioxide: 8.02 μg/m3
Ozone: 65.52 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 12:00 AM
Sunset: 7:17 PM
Daylight: 12 hrs 39 mins
Moonrise: 6:07 PM
Moon Transit: 12:00 AM
Moonset: 5:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:40 PM - 4:10 PM

Minor Periods

5:37 PM - 7:07 PM
5:22 AM - 6:52 AM

Action Rating: 4 out of 5

Wednesday, April 1, 2026

Weather Forecast

Heavy rain
67.8°F
49.4°F
59.2°F
87%
1.01 in
88%
0%
16.6 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 8.7 μg/m3
PM10: 8.86 μg/m3
Carbon Monoxide: 192.77 μg/m3
Nitrogen Dioxide: 18.44 μg/m3
Sulphur Dioxide: 5.88 μg/m3
Ozone: 78.24 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 12:00 AM
Sunset: 7:19 PM
Daylight: 12 hrs 41 mins
Moonrise: 7:12 PM
Moon Transit: 12:15 AM
Moonset: 6:12 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:22 PM - 4:52 PM

Minor Periods

6:42 PM - 8:12 PM
5:42 AM - 7:12 AM

Action Rating: 3 out of 5

Thursday, April 2, 2026

Weather Forecast

Heavy rain
48°F
39.9°F
43.2°F
91%
1.23 in
79%
0%
15.9 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 4.07 μg/m3
PM10: 4.17 μg/m3
Carbon Monoxide: 189.32 μg/m3
Nitrogen Dioxide: 12.69 μg/m3
Sulphur Dioxide: 2.81 μg/m3
Ozone: 74.88 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 12:00 AM
Sunset: 7:20 PM
Daylight: 12 hrs 44 mins
Moonrise: 8:17 PM
Moon Transit: 12:57 AM
Moonset: 6:33 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

12:27 AM - 2:57 AM
3:05 PM - 5:35 PM

Minor Periods

7:47 PM - 9:17 PM
6:03 AM - 7:33 AM

Action Rating: 4 out of 5

Friday, April 3, 2026

Weather Forecast

Patchy rain nearby
64.5°F
40.1°F
49.8°F
90%
0.09 in
83%
0%
14.5 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 4.03 μg/m3
PM10: 4.16 μg/m3
Carbon Monoxide: 194.32 μg/m3
Nitrogen Dioxide: 12.24 μg/m3
Sulphur Dioxide: 2.9 μg/m3
Ozone: 70.77 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 12:00 AM
Sunset: 7:21 PM
Daylight: 12 hrs 47 mins
Moonrise: 9:22 PM
Moon Transit: 1:40 AM
Moonset: 6:55 AM
Moon Phase: Full
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

1:10 AM - 3:40 AM
3:49 PM - 6:19 PM

Minor Periods

8:52 PM - 10:22 PM
6:25 AM - 7:55 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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