Water Temperature of Norwalk Harbor in Norwalk, CT
Current Water Temperature
42.8°F
Measurement Time: Friday, March 27, 2026, 7:54 AM EDT
Temperature Locations
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Local Points of Interest
Sheffield Island Harbor; Calf Pasture and Shady Beach; Long Island SoundNorwalk 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
46.9°F

Partly cloudy
40.6°F
50.5°F
56%
N 15.2 mph
17.5 mph
45°F
33.8°F
0 in
75%
9 mi
1017 mbar
5.7
Five Day Weather Forecast

Fri
H: 55°F
L: 35°F

Sat
H: 42°F
L: 27°F

Sun
H: 52°F
L: 30°F

Mon
H: 55°F
L: 41°F

Tue
H: 67°F
L: 46°F
Air Quality
AQI:
2 - Moderate
PM2.5:
3.15 μg/m3
PM10:
3.45 μg/m3
Carbon Monoxide: 211.85 μg/m3
Nitrogen Dioxide: 5.15 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 100 μg/m3
Nitrogen Dioxide: 5.15 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 100 μg/m3
Astronomical
Sunrise: 6:45 AM
Sun Transit: 12:00 AM
Sunset: 7:13 PM
Daylight: 12 hrs 28 mins
Sun Transit: 12:00 AM
Sunset: 7:13 PM
Daylight: 12 hrs 28 mins
Moonrise: 1:27 PM
Moon Transit: 9:09 PM
Moonset: 4:03 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%
Moon Transit: 9:09 PM
Moonset: 4:03 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%
Best Times for Fishing or Hunting
Major Periods
10:30 AM - 1:00 PM8:39 PM - 11:09 PM
Minor Periods
12:57 AM - 2:27 PM3:33 AM - 5:03 AM
Action Rating: 2 out of 5
Friday, March 27, 2026
Weather Forecast
Patchy rain nearby
55.4°F
34.9°F
49.8°F
66%
0.07 in
87%
0%
20.1 mph
1.2
Air Quality
AQI:
1 - Good
PM2.5:
8.94 μg/m3
PM10:
9.15 μg/m3
Carbon Monoxide: 232.37 μg/m3
Nitrogen Dioxide: 14.99 μg/m3
Sulphur Dioxide: 4.07 μg/m3
Ozone: 83.04 μg/m3
Nitrogen Dioxide: 14.99 μg/m3
Sulphur Dioxide: 4.07 μg/m3
Ozone: 83.04 μg/m3
Astronomical
Sunrise: 6:45 AM
Sun Transit: 12:00 AM
Sunset: 7:13 PM
Daylight: 12 hrs 28 mins
Sun Transit: 12:00 AM
Sunset: 7:13 PM
Daylight: 12 hrs 28 mins
Moonrise: 1:27 PM
Moon Transit: 9:09 PM
Moonset: 4:03 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%
Moon Transit: 9:09 PM
Moonset: 4:03 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%
Best Times for Fishing or Hunting
Major Periods
10:30 AM - 1:00 PM8:39 PM - 11:09 PM
Minor Periods
12:57 AM - 2:27 PM3:33 AM - 5:03 AM
Action Rating: 2 out of 5
Saturday, March 28, 2026
Weather Forecast
Sunny
41.9°F
26.8°F
34.4°F
44%
0 in
0%
0%
16.3 mph
1
Air Quality
AQI:
1 - Good
PM2.5:
6.15 μg/m3
PM10:
6.75 μg/m3
Carbon Monoxide: 241.17 μg/m3
Nitrogen Dioxide: 10.97 μg/m3
Sulphur Dioxide: 2.47 μg/m3
Ozone: 79.92 μg/m3
Nitrogen Dioxide: 10.97 μg/m3
Sulphur Dioxide: 2.47 μg/m3
Ozone: 79.92 μg/m3
Astronomical
Sunrise: 6:44 AM
Sun Transit: 12:00 AM
Sunset: 7:14 PM
Daylight: 12 hrs 31 mins
Sun Transit: 12:00 AM
Sunset: 7:14 PM
Daylight: 12 hrs 31 mins
Moonrise: 2:41 PM
Moon Transit: 10:00 PM
Moonset: 4:38 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 77.5%
Moon Transit: 10:00 PM
Moonset: 4:38 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 77.5%
Best Times for Fishing or Hunting
Major Periods
11:22 AM - 1:52 PM9:30 PM - 12:00 PM
Minor Periods
2:11 PM - 3:41 PM4:08 AM - 5:38 AM
Action Rating: 2 out of 5
Sunday, March 29, 2026
Weather Forecast
Partly Cloudy
51.8°F
30.4°F
39.3°F
53%
0 in
0%
0%
15.7 mph
1.1
Air Quality
AQI:
1 - Good
PM2.5:
8.75 μg/m3
PM10:
9.89 μg/m3
Carbon Monoxide: 274.17 μg/m3
Nitrogen Dioxide: 17.65 μg/m3
Sulphur Dioxide: 4.91 μg/m3
Ozone: 74.72 μg/m3
Nitrogen Dioxide: 17.65 μg/m3
Sulphur Dioxide: 4.91 μg/m3
Ozone: 74.72 μg/m3
Astronomical
Sunrise: 6:42 AM
Sun Transit: 12:00 AM
Sunset: 7:15 PM
Daylight: 12 hrs 33 mins
Sun Transit: 12:00 AM
Sunset: 7:15 PM
Daylight: 12 hrs 33 mins
Moonrise: 3:52 PM
Moon Transit: 10:47 PM
Moonset: 5:06 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.2%
Moon Transit: 10:47 PM
Moonset: 5:06 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.2%
Best Times for Fishing or Hunting
Major Periods
12:11 AM - 2:41 PM12:00 AM - 12:00 AM
Minor Periods
3:22 PM - 4:52 PM4:36 AM - 6:06 AM
Action Rating: 2 out of 5
Monday, March 30, 2026
Weather Forecast
Moderate rain
55.4°F
40.8°F
44.7°F
79%
0.21 in
70%
0%
11.6 mph
0.8
Air Quality
AQI:
1 - Good
PM2.5:
13.25 μg/m3
PM10:
13.97 μg/m3
Carbon Monoxide: 273.49 μg/m3
Nitrogen Dioxide: 21.02 μg/m3
Sulphur Dioxide: 8.07 μg/m3
Ozone: 78 μg/m3
Nitrogen Dioxide: 21.02 μg/m3
Sulphur Dioxide: 8.07 μg/m3
Ozone: 78 μg/m3
Astronomical
Sunrise: 6:40 AM
Sun Transit: 12:00 AM
Sunset: 7:16 PM
Daylight: 12 hrs 36 mins
Sun Transit: 12:00 AM
Sunset: 7:16 PM
Daylight: 12 hrs 36 mins
Moonrise: 5:01 PM
Moon Transit: 11:32 PM
Moonset: 5:30 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%
Moon Transit: 11:32 PM
Moonset: 5:30 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%
Best Times for Fishing or Hunting
Major Periods
12:57 AM - 3:27 PM12:00 AM - 12:00 AM
Minor Periods
4:31 PM - 6:01 PM5:00 AM - 6:30 AM
Action Rating: 3 out of 5
Tuesday, March 31, 2026
Weather Forecast
Moderate rain
66.6°F
45.6°F
55.1°F
81%
0.27 in
80%
0%
14.1 mph
0
Air Quality
AQI:
2 - Moderate
PM2.5:
25.34 μg/m3
PM10:
25.81 μg/m3
Carbon Monoxide: 356.29 μg/m3
Nitrogen Dioxide: 42.63 μg/m3
Sulphur Dioxide: 10.77 μg/m3
Ozone: 40.92 μg/m3
Nitrogen Dioxide: 42.63 μg/m3
Sulphur Dioxide: 10.77 μg/m3
Ozone: 40.92 μg/m3
Astronomical
Sunrise: 6:39 AM
Sun Transit: 12:00 AM
Sunset: 7:17 PM
Daylight: 12 hrs 39 mins
Sun Transit: 12:00 AM
Sunset: 7:17 PM
Daylight: 12 hrs 39 mins
Moonrise: 6:07 PM
Moon Transit: 12:00 AM
Moonset: 5:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%
Moon Transit: 12:00 AM
Moonset: 5:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM1:40 PM - 4:10 PM
Minor Periods
5:37 PM - 7:07 PM5:22 AM - 6:52 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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