Water Temperature of Norwalk Harbor in Norwalk, CT

Current Water Temperature

52.7°F

Measurement Time: Thursday, November 6, 2025, 12:00 PM EST

Temperature Locations

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Local Points of Interest

Sheffield Island Harbor; Calf Pasture and Shady Beach; Long Island Sound

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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 / 0 meters

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 (2.0 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 (7.0 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 (29.0 mi)

Weather for Norwalk, Connecticut

Current Weather

46.9°F
Clear
Conditions: Clear
Humidity: 44%
Feels Like: 41.4°F
Wind: NW 12.5 mph
Wind Gusts: 17.3 mph
Pressure: 30.11 in
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Patchy rain nearby
Thu
H: 52°F
L: 41°F
Partly Cloudy
Fri
H: 55°F
L: 39°F
Moderate rain
Sat
H: 60°F
L: 48°F
Patchy rain nearby
Sun
H: 59°F
L: 47°F
Patchy rain nearby
Mon
H: 46°F
L: 35°F

Air Quality

AQI: 1 - Good
PM2.5: 6.45 μg/m3
PM10: 6.45 μg/m3
Carbon Monoxide: 178.85 μg/m3
Nitrogen Dioxide: 22.65 μg/m3
Sulphur Dioxide: 3.05 μg/m3
Ozone: 44 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 11:37 AM
Sunset: 4:43 PM
Daylight: 10 hrs 12 mins
Moonrise: 5:14 PM
Moon Transit: 12:10 AM
Moonset: 8:03 AM
Moon Phase: Full
Moon Illumination: 97.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:30 PM - 5:00 PM

Minor Periods

4:44 PM - 6:14 PM
7:33 AM - 9:03 AM

Action Rating: 5 out of 5

Frost Advisory issued November 6 at 1:12PM EST until November 7 at 8:00AM EST by NWS Upton NY

Effective: Thu November 6, 2025, 1:12 PM
Expires: Fri November 7, 2025, 1:00 AM

* WHAT...Temperatures as low as 33 and mainly in the middle 30s will result in frost formation. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...From midnight tonight to 8 AM EST Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.
Thursday, November 6, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 47.8°F
Average Humidity: 52%
Chance of Rain: 63%
Wind: 27.1 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 3.03 μg/m3
PM10: 3.04 μg/m3
Carbon Monoxide: 171.65 μg/m3
Nitrogen Dioxide: 7.82 μg/m3
Sulphur Dioxide: 3.6 μg/m3
Ozone: 70.4 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 11:37 AM
Sunset: 4:43 PM
Daylight: 10 hrs 12 mins
Moonrise: 5:14 PM
Moon Transit: 12:10 AM
Moonset: 8:03 AM
Moon Phase: Full
Moon Illumination: 97.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:30 PM - 5:00 PM

Minor Periods

4:44 PM - 6:14 PM
7:33 AM - 9:03 AM

Action Rating: 5 out of 5

Friday, November 7, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 47.1°F
Average Humidity: 66%
Chance of Rain: 0%
Wind: 19 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 8.7 μg/m3
PM10: 8.87 μg/m3
Carbon Monoxide: 191.09 μg/m3
Nitrogen Dioxide: 26.05 μg/m3
Sulphur Dioxide: 6.31 μg/m3
Ozone: 47.4 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 11:37 AM
Sunset: 4:42 PM
Daylight: 10 hrs 10 mins
Moonrise: 6:09 PM
Moon Transit: 1:14 AM
Moonset: 9:23 AM
Moon Phase: Full
Moon Illumination: 93.4%

Best Times for Fishing or Hunting

Major Periods

12:44 AM - 3:14 AM
3:36 PM - 6:06 PM

Minor Periods

5:39 PM - 7:09 PM
8:53 AM - 10:23 AM

Action Rating: 3 out of 5

Saturday, November 8, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 54.3°F
Average Humidity: 86%
Chance of Rain: 89%
Wind: 14.3 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 9.16 μg/m3
PM10: 9.29 μg/m3
Carbon Monoxide: 184.21 μg/m3
Nitrogen Dioxide: 16.34 μg/m3
Sulphur Dioxide: 7.35 μg/m3
Ozone: 69.24 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 11:37 AM
Sunset: 4:41 PM
Daylight: 10 hrs 8 mins
Moonrise: 7:15 PM
Moon Transit: 2:20 AM
Moonset: 10:34 AM
Moon Phase: Waning Gibbous
Moon Illumination: 86.7%

Best Times for Fishing or Hunting

Major Periods

1:50 AM - 4:20 AM
4:42 PM - 7:12 PM

Minor Periods

6:45 PM - 8:15 PM
10:04 AM - 11:34 AM

Action Rating: 3 out of 5

Sunday, November 9, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 53.3°F
Average Humidity: 87%
Chance of Rain: 81%
Wind: 18.1 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 12.58 μg/m3
PM10: 12.88 μg/m3
Carbon Monoxide: 212.21 μg/m3
Nitrogen Dioxide: 29.81 μg/m3
Sulphur Dioxide: 6.11 μg/m3
Ozone: 40.8 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 11:37 AM
Sunset: 4:40 PM
Daylight: 10 hrs 5 mins
Moonrise: 8:28 PM
Moon Transit: 3:25 AM
Moonset: 11:30 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.1%

Best Times for Fishing or Hunting

Major Periods

2:55 AM - 5:25 AM
5:45 PM - 8:15 PM

Minor Periods

7:58 PM - 9:28 PM
11:00 AM - 12:30 AM

Action Rating: 2 out of 5

Monday, November 10, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 43.3°F
Average Humidity: 66%
Chance of Rain: 85%
Wind: 19.9 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 9.53 μg/m3
PM10: 9.57 μg/m3
Carbon Monoxide: 243.77 μg/m3
Nitrogen Dioxide: 24.67 μg/m3
Sulphur Dioxide: 6.65 μg/m3
Ozone: 39.23 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 11:37 AM
Sunset: 4:39 PM
Daylight: 10 hrs 3 mins
Moonrise: 9:43 PM
Moon Transit: 4:26 AM
Moonset: 12:14 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

3:56 AM - 6:26 AM
6:42 PM - 9:12 PM

Minor Periods

9:13 PM - 10:43 PM
11:44 AM - 1:14 PM

Action Rating: 3 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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