Water Temperature of Norwalk Harbor in Norwalk, CT

Current Water Temperature

76.6°F

Measurement Time: Tuesday, August 5, 2025, 8:00 AM EDT

Temperature Locations

View Nearby Locations     View All Connecticut Locations     View Locations Near Me

Local Points of Interest

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

Sponsored Content

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

82°F
Partly Cloudy
Conditions: Partly Cloudy
Humidity: 51%
Feels Like: 85.8°F
Wind: ESE 6 mph
Wind Gusts: 7.7 mph
Pressure: 30.31 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 8 mi
UV Index: 3.2

Five Day Weather Forecast

Mist
Tue
H: 82°F
L: 62°F
Overcast
Wed
H: 82°F
L: 68°F
Overcast
Thu
H: 74°F
L: 68°F
Sunny
Fri
H: 81°F
L: 67°F
Sunny
Sat
H: 83°F
L: 65°F

Air Quality

AQI: 2 - Moderate
PM2.5: 83.07 μg/m3
PM10: 85.1 μg/m3
Carbon Monoxide: 601.25 μg/m3
Nitrogen Dioxide: 39.41 μg/m3
Sulphur Dioxide: 7.4 μg/m3
Ozone: 133 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:00 PM
Sunset: 8:05 PM
Daylight: 14 hrs 11 mins
Moonrise: 6:00 PM
Moon Transit: 10:15 PM
Moonset: 1:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

11:36 AM - 2:06 PM
12:00 AM - 12:00 AM

Minor Periods

5:30 PM - 7:00 PM
1:07 AM - 2:37 AM

Action Rating: 2 out of 5

Air Quality Alert issued August 5 at 12:35AM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Tue August 5, 2025, 12:35 AM
Expires: Tue August 5, 2025, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Fairfield, New Haven, Middlesex. until 11 PM EDT this evening. An Air Quality Action Day means that Ground Level Ozone and Fine Particulates 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 August 5 at 12:35AM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Tue August 5, 2025, 12:35 AM
Expires: Tue August 5, 2025, 11:00 PM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Fairfield, New Haven, Middlesex. until 11 PM EDT this evening. An Air Quality Action Day means that Ground Level Ozone and Fine Particulates 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 August 5 at 9:54AM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Tue August 5, 2025, 9:54 AM
Expires: Wed August 6, 2025, 12:00 AM

The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Fairfield, New Haven, Middlesex. until 11 PM EDT this evening. An Air Quality Action Day means that Ground Level Ozone and Fine Particulates 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 August 5 at 12:35AM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Tue August 5, 2025, 12:35 AM
Expires: Tue August 5, 2025, 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, Westchester, Rockland, Orange, Putnam. until midnight EDT tonight. 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 and Fine Particulates. 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 August 5 at 12:35AM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Tue August 5, 2025, 12:35 AM
Expires: Tue August 5, 2025, 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, Westchester, Rockland, Orange, Putnam. until midnight EDT tonight. 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 and Fine Particulates. 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.


Tuesday, August 5, 2025

Weather Forecast

Conditions: Mist
Average Temperature: 73.6°F
Average Humidity: 79%
Chance of Rain: 0%
Wind: 7.2 mph
UV Index: 1.6

Air Quality

AQI: 4 - Unhealthy
PM2.5: 98.42 μg/m3
PM10: 100.05 μg/m3
Carbon Monoxide: 680.5 μg/m3
Nitrogen Dioxide: 39.38 μg/m3
Sulphur Dioxide: 6.61 μg/m3
Ozone: 111 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:00 PM
Sunset: 8:05 PM
Daylight: 14 hrs 11 mins
Moonrise: 6:00 PM
Moon Transit: 10:15 PM
Moonset: 1:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

11:36 AM - 2:06 PM
12:00 AM - 12:00 AM

Minor Periods

5:30 PM - 7:00 PM
1:07 AM - 2:37 AM

Action Rating: 2 out of 5

Wednesday, August 6, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 72.3°F
Average Humidity: 73%
Chance of Rain: 0%
Wind: 10.1 mph
UV Index: 1.5

Air Quality

AQI: 4 - Unhealthy
PM2.5: 65.61 μg/m3
PM10: 67.21 μg/m3
Carbon Monoxide: 519.7 μg/m3
Nitrogen Dioxide: 25.97 μg/m3
Sulphur Dioxide: 6.99 μg/m3
Ozone: 108.44 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:00 PM
Sunset: 8:04 PM
Daylight: 14 hrs 9 mins
Moonrise: 6:48 PM
Moon Transit: 11:10 PM
Moonset: 2:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 94.4%

Best Times for Fishing or Hunting

Major Periods

12:31 AM - 3:01 PM
12:00 AM - 12:00 AM

Minor Periods

6:18 PM - 7:48 PM
2:03 AM - 3:33 AM

Action Rating: 3 out of 5

Thursday, August 7, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 70.8°F
Average Humidity: 65%
Chance of Rain: 0%
Wind: 8.7 mph
UV Index: 1.9

Air Quality

AQI: 2 - Moderate
PM2.5: 35.05 μg/m3
PM10: 36.4 μg/m3
Carbon Monoxide: 424.61 μg/m3
Nitrogen Dioxide: 17.06 μg/m3
Sulphur Dioxide: 4.21 μg/m3
Ozone: 86.24 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:00 PM
Sunset: 8:03 PM
Daylight: 14 hrs 7 mins
Moonrise: 7:28 PM
Moon Transit: 12:00 AM
Moonset: 3:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:25 PM - 3:55 PM

Minor Periods

6:58 PM - 8:28 PM
3:07 AM - 4:37 AM

Action Rating: 3 out of 5

Friday, August 8, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 72.1°F
Average Humidity: 60%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 2

Air Quality

AQI: 2 - Moderate
PM2.5: 19.33 μg/m3
PM10: 22.95 μg/m3
Carbon Monoxide: 339.59 μg/m3
Nitrogen Dioxide: 29.56 μg/m3
Sulphur Dioxide: 6.79 μg/m3
Ozone: 73.2 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 1:00 PM
Sunset: 8:01 PM
Daylight: 14 hrs 5 mins
Moonrise: 8:01 PM
Moon Transit: 12:04 AM
Moonset: 4:48 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:18 PM - 4:48 PM

Minor Periods

7:31 PM - 9:01 PM
4:18 AM - 5:48 AM

Action Rating: 4 out of 5

Saturday, August 9, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 73°F
Average Humidity: 56%
Chance of Rain: 0%
Wind: 10.7 mph
UV Index: 0.1

Air Quality

AQI: 2 - Moderate
PM2.5: 20.29 μg/m3
PM10: 24.38 μg/m3
Carbon Monoxide: 361.46 μg/m3
Nitrogen Dioxide: 45.2 μg/m3
Sulphur Dioxide: 9.22 μg/m3
Ozone: 47.38 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 1:00 PM
Sunset: 8:00 PM
Daylight: 14 hrs 2 mins
Moonrise: 8:29 PM
Moon Transit: 12:56 AM
Moonset: 6:00 AM
Moon Phase: Full
Moon Illumination: 99.0%

Best Times for Fishing or Hunting

Major Periods

12:26 AM - 2:56 AM
3:08 PM - 5:38 PM

Minor Periods

7:59 PM - 9:29 PM
5:30 AM - 7:00 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.

Webcams Near Norwalk, CT

Sponsored Content