Water Temperature of Norwalk Harbor in Norwalk, CT

Current Water Temperature

65.3°F

Measurement Time: Friday, June 5, 2026, 10:54 AM 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

90°F
Partly cloudy
Partly cloudy
86.8°F
92.3°F
20%
WNW 7.6 mph
12.1 mph
94.2°F
51.3°F
0 in
75%
9 mi
1014 mbar
6

Five Day Weather Forecast

Sunny
Fri
H: 95°F
L: 59°F
Patchy rain nearby
Sat
H: 83°F
L: 65°F
Moderate rain
Sun
H: 80°F
L: 64°F
Sunny
Mon
H: 78°F
L: 54°F
Sunny
Tue
H: 83°F
L: 59°F

Air Quality

AQI: 1 - Good
PM2.5: 5 μg/m3
PM10: 7.7 μg/m3
Carbon Monoxide: 179 μg/m3
Nitrogen Dioxide: 1.5 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 144 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 12:52 AM
Sunset: 8:23 PM
Daylight: 15 hrs 1 mins
Moonrise: 12:57 AM
Moon Transit: 4:48 AM
Moonset: 9:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.0%

Best Times for Fishing or Hunting

Major Periods

4:18 AM - 6:48 AM
6:58 PM - 9:28 PM

Minor Periods

9:18 AM - 10:48 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Air Quality Alert issued June 4 at 3:15PM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Thu June 4, 2026, 3:15 PM
Expires: Fri June 5, 2026, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Southern Fairfield, Southern New Haven, Southern Middlesex, Southern New London. from 11 AM to 11 PM EDT Friday. An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi


Air Quality Alert issued June 5 at 3:42AM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Fri June 5, 2026, 3:42 AM
Expires: Fri June 5, 2026, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Southern Fairfield, Southern New Haven, Southern Middlesex, Southern New London. from 11 AM to 11 PM EDT Friday. An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi


Air Quality Alert issued June 4 at 3:15PM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Thu June 4, 2026, 3:15 PM
Expires: Fri June 5, 2026, 11:00 PM

The New York State Department of Environmental Conservation has issued an Air Quality Health Advisory for the following counties: New York, Bronx, Kings, Queens, Richmond, Nassau, Suffolk, Westchester, Rockland. from 11 AM to 11 PM EDT Friday. Air quality levels in outdoor air are predicted to be greater than an Air Quality Index value of 100 for the pollutant of Ground Level Ozone. The Air Quality Index, or AQI, was created as an easy way to correlate levels of different pollutants to one scale. The higher the AQI value, the greater the health concern. When pollution levels are elevated, the New York State Department of Health recommends that individuals consider limiting strenuous outdoor physical activity to reduce the risk of adverse health effects. People who may be especially sensitive to the effects of elevated levels of pollutants include the very young, and those with preexisting respiratory problems such as asthma or heart disease. Those with symptoms should consider consulting their personal physician. For additional information, please visit the New York State Department of Environmental Conservation website at, https://on.ny.gov/nyaqi, or call the Air Quality Hotline at 1 800 5 3 5, 1 3 4 5.


Air Quality Alert issued June 5 at 3:42AM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Fri June 5, 2026, 3:42 AM
Expires: Fri June 5, 2026, 11:00 PM

The New York State Department of Environmental Conservation has issued an Air Quality Health Advisory for the following counties: New York, Bronx, Kings, Queens, Richmond, Nassau, Suffolk, Westchester, Rockland. from 11 AM to 11 PM EDT Friday. Air quality levels in outdoor air are predicted to be greater than an Air Quality Index value of 100 for the pollutant of Ground Level Ozone. The Air Quality Index, or AQI, was created as an easy way to correlate levels of different pollutants to one scale. The higher the AQI value, the greater the health concern. When pollution levels are elevated, the New York State Department of Health recommends that individuals consider limiting strenuous outdoor physical activity to reduce the risk of adverse health effects. People who may be especially sensitive to the effects of elevated levels of pollutants include the very young, and those with preexisting respiratory problems such as asthma or heart disease. Those with symptoms should consider consulting their personal physician. For additional information, please visit the New York State Department of Environmental Conservation website at, https://on.ny.gov/nyaqi, or call the Air Quality Hotline at 1 800 5 3 5, 1 3 4 5.


Air Quality Alert issued June 4 at 3:15PM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Thu June 4, 2026, 3:15 PM
Expires: Fri June 5, 2026, 11:00 PM

The New Jersey Department of Environmental Protection has issued an Air Quality Action Day for the following counties: Bergen, Eastern Passaic, Hudson, Essex, Union. from 11 AM to 11 PM EDT Friday. An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards. For additional information, please visit the New Jersey Department of Environmental Protection Web site at https://dep.nj.gov/airmon


Friday, June 5, 2026

Weather Forecast

Sunny
95.4°F
58.6°F
75.8°F
43%
0 in
0%
0%
7.6 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 12.2 μg/m3
PM10: 13.88 μg/m3
Carbon Monoxide: 197.5 μg/m3
Nitrogen Dioxide: 24.5 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 92.58 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 12:52 AM
Sunset: 8:23 PM
Daylight: 15 hrs 1 mins
Moonrise: 12:57 AM
Moon Transit: 4:48 AM
Moonset: 9:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.0%

Best Times for Fishing or Hunting

Major Periods

4:18 AM - 6:48 AM
6:58 PM - 9:28 PM

Minor Periods

9:18 AM - 10:48 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, June 6, 2026

Weather Forecast

Patchy rain nearby
82.9°F
65.2°F
73.8°F
60%
0.06 in
73%
0%
13 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 11.71 μg/m3
PM10: 12.88 μg/m3
Carbon Monoxide: 172.63 μg/m3
Nitrogen Dioxide: 15.93 μg/m3
Sulphur Dioxide: 2.08 μg/m3
Ozone: 115.04 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:52 AM
Sunset: 8:24 PM
Daylight: 15 hrs 2 mins
Moonrise: 12:24 AM
Moon Transit: 5:33 AM
Moonset: 10:53 AM
Moon Phase: Last Quarter
Moon Illumination: 53.9%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
7:42 PM - 10:12 PM

Minor Periods

10:23 AM - 11:53 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, June 7, 2026

Weather Forecast

Moderate rain
80.2°F
63.7°F
71.2°F
71%
0.36 in
73%
0%
15.7 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 3.18 μg/m3
PM10: 3.5 μg/m3
Carbon Monoxide: 139.33 μg/m3
Nitrogen Dioxide: 4.33 μg/m3
Sulphur Dioxide: 0.61 μg/m3
Ozone: 85.33 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:52 AM
Sunset: 8:24 PM
Daylight: 15 hrs 3 mins
Moonrise: 12:47 AM
Moon Transit: 6:17 AM
Moonset: 11:58 AM
Moon Phase: Last Quarter
Moon Illumination: 42.6%

Best Times for Fishing or Hunting

Major Periods

5:47 AM - 8:17 AM
8:25 PM - 10:55 PM

Minor Periods

11:28 AM - 12:58 AM
12:17 AM - 1:47 AM

Action Rating: 4 out of 5

Monday, June 8, 2026

Weather Forecast

Sunny
78°F
53.5°F
66.1°F
55%
0 in
1%
0%
11.2 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 4.03 μg/m3
PM10: 4.53 μg/m3
Carbon Monoxide: 131.56 μg/m3
Nitrogen Dioxide: 6.4 μg/m3
Sulphur Dioxide: 0.96 μg/m3
Ozone: 82.79 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:52 AM
Sunset: 8:25 PM
Daylight: 15 hrs 4 mins
Moonrise: 1:08 AM
Moon Transit: 12:00 AM
Moonset: 1:04 PM
Moon Phase: Last Quarter
Moon Illumination: 31.6%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

12:34 AM - 2:04 PM
12:38 AM - 2:08 AM

Action Rating: 2 out of 5

Tuesday, June 9, 2026

Weather Forecast

Sunny
82.5°F
58.9°F
69.7°F
50%
0 in
0%
0%
10.5 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 9.08 μg/m3
PM10: 10.88 μg/m3
Carbon Monoxide: 159 μg/m3
Nitrogen Dioxide: 16.68 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 56.56 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:52 AM
Sunset: 8:25 PM
Daylight: 15 hrs 5 mins
Moonrise: 1:29 AM
Moon Transit: 6:27 AM
Moonset: 2:12 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%

Best Times for Fishing or Hunting

Major Periods

5:57 AM - 8:27 AM
5:57 AM - 8:27 AM

Minor Periods

1:42 PM - 3:12 PM
12:59 AM - 2:29 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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