Water Temperature of Norwalk Harbor in Norwalk, CT

Current Water Temperature

75.6°F

Measurement Time: Friday, September 4, 2026, 7:54 PM 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

71°F
Mostly Clear
Mostly Clear
71%
NW 6 mph
61°F

Weather Forecast

Mostly Clear
Tonight
65°F - Mostly Clear
Mostly Sunny
Saturday
80°F - Mostly Sunny
Chance Rain Showers
Saturday Night
61°F - Chance Rain Showers
Mostly Sunny
Sunday
72°F - Mostly Sunny
Mostly Clear
Sunday Night
60°F - Mostly Clear
Sunny
Labor Day
75°F - Sunny
Mostly Clear
Monday Night
61°F - Mostly Clear
Mostly Sunny
Tuesday
79°F - Mostly Sunny
Mostly Cloudy
Tuesday Night
64°F - Mostly Cloudy
Partly Sunny
Wednesday
78°F - Partly Sunny
Chance Rain Showers
Wednesday Night
69°F - Chance Rain Showers
Chance Rain Showers
Thursday
82°F - Chance Rain Showers
Slight Chance Rain Showers
Thursday Night
62°F - Slight Chance Rain Showers
Mostly Sunny
Friday
73°F - Mostly Sunny

Astronomical

Sunrise: 6:24 AM
Sun Transit: 12:52 AM
Sunset: 7:21 PM
Daylight: 12 hrs 57 mins
Moonrise: 11:37 PM
Moon Transit: 6:44 AM
Moonset: 2:54 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:14 AM - 8:44 AM
9:04 PM - 11:34 PM

Minor Periods

12:00 AM - 12:00 AM
2:24 PM - 3:54 PM

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: 6:24 AM
Sun Transit: 12:52 AM
Sunset: 7:21 PM
Daylight: 12 hrs 57 mins
Moonrise: 11:37 PM
Moon Transit: 6:44 AM
Moonset: 2:54 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:14 AM - 8:44 AM
9:04 PM - 11:34 PM

Minor Periods

12:00 AM - 12:00 AM
2:24 PM - 3:54 PM

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: 6:25 AM
Sun Transit: 12:52 AM
Sunset: 7:19 PM
Daylight: 12 hrs 55 mins
Moonrise: 12:37 AM
Moon Transit: 7:47 AM
Moonset: 3:57 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:17 AM - 9:47 AM
12:00 AM - 12:00 AM

Minor Periods

3:27 PM - 4:57 PM
12:00 AM - 12:00 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: 6:25 AM
Sun Transit: 12:52 AM
Sunset: 7:19 PM
Daylight: 12 hrs 55 mins
Moonrise: 12:37 AM
Moon Transit: 7:47 AM
Moonset: 3:57 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:17 AM - 9:47 AM
12:00 AM - 12:00 AM

Minor Periods

3:27 PM - 4:57 PM
12:00 AM - 12:00 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: 6:26 AM
Sun Transit: 12:51 AM
Sunset: 7:18 PM
Daylight: 12 hrs 52 mins
Moonrise: 12:44 AM
Moon Transit: 8:50 AM
Moonset: 4:49 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:20 AM - 10:50 AM
12:00 AM - 12:00 AM

Minor Periods

4:19 PM - 5:49 PM
12:14 AM - 1:44 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: 6:26 AM
Sun Transit: 12:51 AM
Sunset: 7:18 PM
Daylight: 12 hrs 52 mins
Moonrise: 12:44 AM
Moon Transit: 8:50 AM
Moonset: 4:49 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:20 AM - 10:50 AM
12:00 AM - 12:00 AM

Minor Periods

4:19 PM - 5:49 PM
12:14 AM - 1:44 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: 6:26 AM
Sun Transit: 12:51 AM
Sunset: 7:16 PM
Daylight: 12 hrs 49 mins
Moonrise: 1:59 AM
Moon Transit: 9:50 AM
Moonset: 5:29 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:20 AM - 11:50 AM

Minor Periods

4:59 PM - 6:29 PM
1:29 AM - 2:59 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: 6:26 AM
Sun Transit: 12:51 AM
Sunset: 7:16 PM
Daylight: 12 hrs 49 mins
Moonrise: 1:59 AM
Moon Transit: 9:50 AM
Moonset: 5:29 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:20 AM - 11:50 AM

Minor Periods

4:59 PM - 6:29 PM
1:29 AM - 2:59 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: 6:27 AM
Sun Transit: 12:51 AM
Sunset: 7:14 PM
Daylight: 12 hrs 47 mins
Moonrise: 3:17 AM
Moon Transit: 10:46 AM
Moonset: 6:02 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

12:07 AM - 2:37 AM
10:16 AM - 12:46 AM

Minor Periods

5:32 PM - 7:02 PM
2:47 AM - 4:17 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: 6:27 AM
Sun Transit: 12:51 AM
Sunset: 7:14 PM
Daylight: 12 hrs 47 mins
Moonrise: 3:17 AM
Moon Transit: 10:46 AM
Moonset: 6:02 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

12:07 AM - 2:37 AM
10:16 AM - 12:46 AM

Minor Periods

5:32 PM - 7:02 PM
2:47 AM - 4:17 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: 6:28 AM
Sun Transit: 12:50 AM
Sunset: 7:13 PM
Daylight: 12 hrs 44 mins
Moonrise: 4:34 AM
Moon Transit: 11:38 AM
Moonset: 6:30 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

1:00 AM - 3:30 AM
11:08 AM - 1:38 PM

Minor Periods

6:00 PM - 7:30 PM
4:04 AM - 5:34 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: 6:28 AM
Sun Transit: 12:50 AM
Sunset: 7:13 PM
Daylight: 12 hrs 44 mins
Moonrise: 4:34 AM
Moon Transit: 11:38 AM
Moonset: 6:30 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

1:00 AM - 3:30 AM
11:08 AM - 1:38 PM

Minor Periods

6:00 PM - 7:30 PM
4:04 AM - 5:34 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: 6:29 AM
Sun Transit: 12:50 AM
Sunset: 7:11 PM
Daylight: 12 hrs 41 mins
Moonrise: 5:48 AM
Moon Transit: 12:27 AM
Moonset: 6:53 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:50 AM - 4:20 AM
11:57 AM - 2:27 PM

Minor Periods

6:23 PM - 7:53 PM
5:18 AM - 6:48 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: 6:29 AM
Sun Transit: 12:50 AM
Sunset: 7:11 PM
Daylight: 12 hrs 41 mins
Moonrise: 5:48 AM
Moon Transit: 12:27 AM
Moonset: 6:53 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:50 AM - 4:20 AM
11:57 AM - 2:27 PM

Minor Periods

6:23 PM - 7:53 PM
5:18 AM - 6:48 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: 6:30 AM
Sun Transit: 12:50 AM
Sunset: 7:09 PM
Daylight: 12 hrs 39 mins
Moonrise: 6:59 AM
Moon Transit: 1:13 PM
Moonset: 7:15 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
12:43 AM - 3:13 PM

Minor Periods

6:45 PM - 8:15 PM
6:29 AM - 7:59 AM

Action Rating: 5 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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