Water Temperature of Norwalk Harbor in Norwalk, CT

Current Water Temperature

73.2°F

Measurement Time: Friday, September 18, 2026, 11:54 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

63°F
Mostly Cloudy
Mostly Cloudy
58%
NE 13 mph
48°F

Weather Forecast

Mostly Cloudy
Overnight
58°F - Mostly Cloudy
Mostly Sunny
Saturday
68°F - Mostly Sunny
Partly Cloudy
Saturday Night
61°F - Partly Cloudy
Rain
Sunday
70°F - Rain
Rain
Sunday Night
60°F - Rain
Chance Light Rain then Partly Sunny
Monday
66°F - Chance Light Rain then Partly Sunny
Mostly Cloudy then Slight Chance Rain Showers
Monday Night
56°F - Mostly Cloudy then Slight Chance Rain Showers
Chance Rain Showers
Tuesday
62°F - Chance Rain Showers
Slight Chance Rain Showers then Mostly Cloudy
Tuesday Night
52°F - Slight Chance Rain Showers then Mostly Cloudy
Slight Chance Rain Showers
Wednesday
65°F - Slight Chance Rain Showers
Chance Rain Showers
Wednesday Night
53°F - Chance Rain Showers
Chance Rain Showers
Thursday
64°F - Chance Rain Showers
Chance Rain Showers
Thursday Night
52°F - Chance Rain Showers
Chance Rain Showers
Friday
65°F - Chance Rain Showers

Astronomical

Sunrise: 6:38 AM
Sun Transit: 12:47 AM
Sunset: 6:56 PM
Daylight: 12 hrs 17 mins
Moonrise: 3:19 PM
Moon Transit: 7:39 PM
Moonset: 12:06 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

9:01 AM - 11:31 AM
7:09 PM - 9:39 PM

Minor Periods

2:49 PM - 4:19 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: 6:38 AM
Sun Transit: 12:47 AM
Sunset: 6:56 PM
Daylight: 12 hrs 17 mins
Moonrise: 3:19 PM
Moon Transit: 7:39 PM
Moonset: 12:06 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

9:01 AM - 11:31 AM
7:09 PM - 9:39 PM

Minor Periods

2:49 PM - 4:19 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: 6:38 AM
Sun Transit: 12:47 AM
Sunset: 6:56 PM
Daylight: 12 hrs 17 mins
Moonrise: 3:19 PM
Moon Transit: 7:39 PM
Moonset: 12:06 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

9:01 AM - 11:31 AM
7:09 PM - 9:39 PM

Minor Periods

2:49 PM - 4:19 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: 6:38 AM
Sun Transit: 12:47 AM
Sunset: 6:56 PM
Daylight: 12 hrs 17 mins
Moonrise: 3:19 PM
Moon Transit: 7:39 PM
Moonset: 12:06 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

9:01 AM - 11:31 AM
7:09 PM - 9:39 PM

Minor Periods

2:49 PM - 4:19 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: 6:39 AM
Sun Transit: 12:46 AM
Sunset: 6:54 PM
Daylight: 12 hrs 15 mins
Moonrise: 3:59 PM
Moon Transit: 8:29 PM
Moonset: 12:03 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

9:52 AM - 12:22 AM
7:59 PM - 10:29 PM

Minor Periods

3:29 PM - 4:59 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: 6:39 AM
Sun Transit: 12:46 AM
Sunset: 6:54 PM
Daylight: 12 hrs 15 mins
Moonrise: 3:59 PM
Moon Transit: 8:29 PM
Moonset: 12:03 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

9:52 AM - 12:22 AM
7:59 PM - 10:29 PM

Minor Periods

3:29 PM - 4:59 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: 6:40 AM
Sun Transit: 12:46 AM
Sunset: 6:53 PM
Daylight: 12 hrs 12 mins
Moonrise: 4:33 PM
Moon Transit: 9:17 PM
Moonset: 1:05 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

10:41 AM - 1:11 PM
8:47 PM - 11:17 PM

Minor Periods

4:03 PM - 5:33 PM
12:35 AM - 2:05 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: 6:40 AM
Sun Transit: 12:46 AM
Sunset: 6:53 PM
Daylight: 12 hrs 12 mins
Moonrise: 4:33 PM
Moon Transit: 9:17 PM
Moonset: 1:05 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

10:41 AM - 1:11 PM
8:47 PM - 11:17 PM

Minor Periods

4:03 PM - 5:33 PM
12:35 AM - 2:05 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: 6:41 AM
Sun Transit: 12:46 AM
Sunset: 6:51 PM
Daylight: 12 hrs 9 mins
Moonrise: 5:01 PM
Moon Transit: 10:04 PM
Moonset: 2:10 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

11:28 AM - 1:58 PM
12:00 AM - 12:00 AM

Minor Periods

4:31 PM - 6:01 PM
1:40 AM - 3:10 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: 6:41 AM
Sun Transit: 12:46 AM
Sunset: 6:51 PM
Daylight: 12 hrs 9 mins
Moonrise: 5:01 PM
Moon Transit: 10:04 PM
Moonset: 2:10 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

11:28 AM - 1:58 PM
12:00 AM - 12:00 AM

Minor Periods

4:31 PM - 6:01 PM
1:40 AM - 3:10 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: 6:42 AM
Sun Transit: 12:45 AM
Sunset: 6:49 PM
Daylight: 12 hrs 7 mins
Moonrise: 5:25 PM
Moon Transit: 10:48 PM
Moonset: 3:15 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

12:13 AM - 2:43 PM
12:00 AM - 12:00 AM

Minor Periods

4:55 PM - 6:25 PM
2:45 AM - 4:15 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: 6:42 AM
Sun Transit: 12:45 AM
Sunset: 6:49 PM
Daylight: 12 hrs 7 mins
Moonrise: 5:25 PM
Moon Transit: 10:48 PM
Moonset: 3:15 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

12:13 AM - 2:43 PM
12:00 AM - 12:00 AM

Minor Periods

4:55 PM - 6:25 PM
2:45 AM - 4:15 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: 6:43 AM
Sun Transit: 12:45 AM
Sunset: 6:47 PM
Daylight: 12 hrs 4 mins
Moonrise: 5:48 PM
Moon Transit: 11:32 PM
Moonset: 4:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:18 PM - 6:48 PM
3:52 AM - 5:22 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: 6:43 AM
Sun Transit: 12:45 AM
Sunset: 6:47 PM
Daylight: 12 hrs 4 mins
Moonrise: 5:48 PM
Moon Transit: 11:32 PM
Moonset: 4:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:18 PM - 6:48 PM
3:52 AM - 5:22 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: 6:44 AM
Sun Transit: 12:45 AM
Sunset: 6:46 PM
Daylight: 12 hrs 1 mins
Moonrise: 6:10 PM
Moon Transit: 12:00 AM
Moonset: 5:28 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

5:40 PM - 7:10 PM
4:58 AM - 6:28 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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