Water Temperature of Norwalk Harbor in Norwalk, CT

Current Water Temperature

32.0°F

Measurement Time: Saturday, October 3, 2026, 4:01 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

61°F
Sunny
Sunny
70%
N 10 mph
51°F

Weather Forecast

Sunny
Today
70°F - Sunny
Mostly Clear
Tonight
55°F - Mostly Clear
Partly Sunny then Chance Rain Showers
Sunday
65°F - Partly Sunny then Chance Rain Showers
Chance Rain Showers
Sunday Night
55°F - Chance Rain Showers
Mostly Sunny
Monday
70°F - Mostly Sunny
Mostly Clear
Monday Night
50°F - Mostly Clear
Sunny
Tuesday
63°F - Sunny
Clear
Tuesday Night
46°F - Clear
Sunny
Wednesday
64°F - Sunny
Mostly Clear
Wednesday Night
52°F - Mostly Clear
Sunny
Thursday
68°F - Sunny
Mostly Clear
Thursday Night
54°F - Mostly Clear
Sunny
Friday
69°F - Sunny
Mostly Clear
Friday Night
53°F - Mostly Clear

Astronomical

Sunrise: 6:53 AM
Sun Transit: 12:42 AM
Sunset: 6:32 PM
Daylight: 11 hrs 40 mins
Moonrise: 11:48 PM
Moon Transit: 6:44 AM
Moonset: 2:46 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:14 AM - 8:44 AM
9:03 PM - 11:33 PM

Minor Periods

12:00 AM - 12:00 AM
2:16 PM - 3:46 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 12:42 AM
Sunset: 6:32 PM
Daylight: 11 hrs 40 mins
Moonrise: 11:48 PM
Moon Transit: 6:44 AM
Moonset: 2:46 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:14 AM - 8:44 AM
9:03 PM - 11:33 PM

Minor Periods

12:00 AM - 12:00 AM
2:16 PM - 3:46 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 12:42 AM
Sunset: 6:32 PM
Daylight: 11 hrs 40 mins
Moonrise: 11:48 PM
Moon Transit: 6:44 AM
Moonset: 2:46 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:14 AM - 8:44 AM
9:03 PM - 11:33 PM

Minor Periods

12:00 AM - 12:00 AM
2:16 PM - 3:46 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 12:42 AM
Sunset: 6:31 PM
Daylight: 11 hrs 37 mins
Moonrise: 12:48 AM
Moon Transit: 7:44 AM
Moonset: 3:29 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:14 AM - 9:44 AM
12:00 AM - 12:00 AM

Minor Periods

2:59 PM - 4:29 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 12:42 AM
Sunset: 6:31 PM
Daylight: 11 hrs 37 mins
Moonrise: 12:48 AM
Moon Transit: 7:44 AM
Moonset: 3:29 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:14 AM - 9:44 AM
12:00 AM - 12:00 AM

Minor Periods

2:59 PM - 4:29 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 12:41 AM
Sunset: 6:29 PM
Daylight: 11 hrs 34 mins
Moonrise: 1:04 AM
Moon Transit: 8:40 AM
Moonset: 4:04 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:10 AM - 10:40 AM
12:00 AM - 12:00 AM

Minor Periods

3:34 PM - 5:04 PM
12:34 AM - 2:04 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 12:41 AM
Sunset: 6:29 PM
Daylight: 11 hrs 34 mins
Moonrise: 1:04 AM
Moon Transit: 8:40 AM
Moonset: 4:04 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:10 AM - 10:40 AM
12:00 AM - 12:00 AM

Minor Periods

3:34 PM - 5:04 PM
12:34 AM - 2:04 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:41 AM
Sunset: 6:27 PM
Daylight: 11 hrs 32 mins
Moonrise: 2:19 AM
Moon Transit: 9:32 AM
Moonset: 4:32 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:02 AM - 11:32 AM

Minor Periods

4:02 PM - 5:32 PM
1:49 AM - 3:19 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:41 AM
Sunset: 6:27 PM
Daylight: 11 hrs 32 mins
Moonrise: 2:19 AM
Moon Transit: 9:32 AM
Moonset: 4:32 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:02 AM - 11:32 AM

Minor Periods

4:02 PM - 5:32 PM
1:49 AM - 3:19 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:41 AM
Sunset: 6:26 PM
Daylight: 11 hrs 29 mins
Moonrise: 3:32 AM
Moon Transit: 10:20 AM
Moonset: 4:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:50 AM - 12:20 AM

Minor Periods

4:26 PM - 5:56 PM
3:02 AM - 4:32 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:41 AM
Sunset: 6:26 PM
Daylight: 11 hrs 29 mins
Moonrise: 3:32 AM
Moon Transit: 10:20 AM
Moonset: 4:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:50 AM - 12:20 AM

Minor Periods

4:26 PM - 5:56 PM
3:02 AM - 4:32 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:41 AM
Sunset: 6:24 PM
Daylight: 11 hrs 26 mins
Moonrise: 4:43 AM
Moon Transit: 11:06 AM
Moonset: 5:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:30 AM - 3:00 AM
10:36 AM - 1:06 PM

Minor Periods

4:48 PM - 6:18 PM
4:13 AM - 5:43 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:41 AM
Sunset: 6:24 PM
Daylight: 11 hrs 26 mins
Moonrise: 4:43 AM
Moon Transit: 11:06 AM
Moonset: 5:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:30 AM - 3:00 AM
10:36 AM - 1:06 PM

Minor Periods

4:48 PM - 6:18 PM
4:13 AM - 5:43 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:40 AM
Sunset: 6:22 PM
Daylight: 11 hrs 24 mins
Moonrise: 5:51 AM
Moon Transit: 11:51 AM
Moonset: 5:40 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

1:15 AM - 3:45 AM
11:21 AM - 1:51 PM

Minor Periods

5:10 PM - 6:40 PM
5:21 AM - 6:51 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:40 AM
Sunset: 6:22 PM
Daylight: 11 hrs 24 mins
Moonrise: 5:51 AM
Moon Transit: 11:51 AM
Moonset: 5:40 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

1:15 AM - 3:45 AM
11:21 AM - 1:51 PM

Minor Periods

5:10 PM - 6:40 PM
5:21 AM - 6:51 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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