Water Temperature of Norwalk Harbor in Norwalk, CT

Current Water Temperature

69.1°F

Measurement Time: Monday, October 6, 2025, 2:00 AM EDT

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

57°F
Sunny
Conditions: Sunny
Humidity: 100%
Feels Like: 56.2°F
Wind: WSW 5.6 mph
Wind Gusts: 11.7 mph
Pressure: 30.27 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Mon
H: 85°F
L: 56°F
Overcast
Tue
H: 71°F
L: 62°F
Heavy rain
Wed
H: 66°F
L: 56°F
Sunny
Thu
H: 60°F
L: 47°F
Sunny
Fri
H: 63°F
L: 47°F

Air Quality

AQI: 1 - Good
PM2.5: 15.65 μg/m3
PM10: 15.65 μg/m3
Carbon Monoxide: 286.85 μg/m3
Nitrogen Dioxide: 26.05 μg/m3
Sulphur Dioxide: 15.55 μg/m3
Ozone: 105 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:41 AM
Sunset: 6:27 PM
Daylight: 11 hrs 31 mins
Moonrise: 6:06 PM
Moon Transit: 1:38 AM
Moonset: 6:10 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

1:08 AM - 3:38 AM
1:08 AM - 3:38 AM

Minor Periods

5:36 PM - 7:06 PM
5:40 AM - 7:10 AM

Action Rating: 4 out of 5

Monday, October 6, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 68.1°F
Average Humidity: 71%
Chance of Rain: 0%
Wind: 10.5 mph
UV Index: 1.1

Air Quality

AQI: 2 - Moderate
PM2.5: 19.85 μg/m3
PM10: 19.99 μg/m3
Carbon Monoxide: 260.09 μg/m3
Nitrogen Dioxide: 37.45 μg/m3
Sulphur Dioxide: 13.06 μg/m3
Ozone: 83.96 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:41 AM
Sunset: 6:27 PM
Daylight: 11 hrs 31 mins
Moonrise: 6:06 PM
Moon Transit: 1:38 AM
Moonset: 6:10 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

1:08 AM - 3:38 AM
1:08 AM - 3:38 AM

Minor Periods

5:36 PM - 7:06 PM
5:40 AM - 7:10 AM

Action Rating: 4 out of 5

Tuesday, October 7, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 65.7°F
Average Humidity: 89%
Chance of Rain: 0%
Wind: 13.4 mph
UV Index: 1

Air Quality

AQI: 1 - Good
PM2.5: 10.67 μg/m3
PM10: 11.31 μg/m3
Carbon Monoxide: 185.21 μg/m3
Nitrogen Dioxide: 25.28 μg/m3
Sulphur Dioxide: 8.71 μg/m3
Ozone: 70.6 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:41 AM
Sunset: 6:25 PM
Daylight: 11 hrs 28 mins
Moonrise: 6:32 PM
Moon Transit: 12:39 AM
Moonset: 7:28 AM
Moon Phase: Full
Moon Illumination: 99.1%

Best Times for Fishing or Hunting

Major Periods

12:09 AM - 2:39 AM
2:53 PM - 5:23 PM

Minor Periods

6:02 PM - 7:32 PM
6:58 AM - 8:28 AM

Action Rating: 5 out of 5

Wednesday, October 8, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 62.5°F
Average Humidity: 86%
Chance of Rain: 89%
Wind: 14.5 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 5.59 μg/m3
PM10: 6.27 μg/m3
Carbon Monoxide: 144.97 μg/m3
Nitrogen Dioxide: 14.82 μg/m3
Sulphur Dioxide: 4.37 μg/m3
Ozone: 63.04 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:41 AM
Sunset: 6:24 PM
Daylight: 11 hrs 26 mins
Moonrise: 7:02 PM
Moon Transit: 1:32 AM
Moonset: 8:48 AM
Moon Phase: Full
Moon Illumination: 95.8%

Best Times for Fishing or Hunting

Major Periods

1:02 AM - 3:32 AM
3:48 PM - 6:18 PM

Minor Periods

6:32 PM - 8:02 PM
8:18 AM - 9:48 AM

Action Rating: 5 out of 5

Thursday, October 9, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 53.1°F
Average Humidity: 45%
Chance of Rain: 0%
Wind: 13.4 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 2.94 μg/m3
PM10: 2.96 μg/m3
Carbon Monoxide: 156.13 μg/m3
Nitrogen Dioxide: 7.87 μg/m3
Sulphur Dioxide: 2.19 μg/m3
Ozone: 66.6 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:40 AM
Sunset: 6:22 PM
Daylight: 11 hrs 23 mins
Moonrise: 7:39 PM
Moon Transit: 2:28 AM
Moonset: 10:11 AM
Moon Phase: Waning Gibbous
Moon Illumination: 90.1%

Best Times for Fishing or Hunting

Major Periods

1:58 AM - 4:28 AM
4:47 PM - 7:17 PM

Minor Periods

7:09 PM - 8:39 PM
9:41 AM - 11:11 AM

Action Rating: 2 out of 5

Friday, October 10, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 54.4°F
Average Humidity: 51%
Chance of Rain: 0%
Wind: 8.1 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 6.51 μg/m3
PM10: 6.6 μg/m3
Carbon Monoxide: 219.62 μg/m3
Nitrogen Dioxide: 21.4 μg/m3
Sulphur Dioxide: 3.47 μg/m3
Ozone: 42.69 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 12:40 AM
Sunset: 6:20 PM
Daylight: 11 hrs 20 mins
Moonrise: 8:26 PM
Moon Transit: 3:29 AM
Moonset: 11:31 AM
Moon Phase: Waning Gibbous
Moon Illumination: 82.3%

Best Times for Fishing or Hunting

Major Periods

2:59 AM - 5:29 AM
5:49 PM - 8:19 PM

Minor Periods

7:56 PM - 9:26 PM
11:01 AM - 12:31 AM

Action Rating: 2 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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