Water Temperature of Norwalk Harbor in Norwalk, CT
Current Water Temperature
Measurement Time: Friday, June 12, 2026, 11:54 AM EDT
Temperature Locations
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Local Points of Interest
Sheffield Island Harbor; Calf Pasture and Shady Beach; Long Island SoundStation 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

Five Day Weather Forecast

Fri
H: 97°F
L: 70°F

Sat
H: 85°F
L: 67°F

Sun
H: 84°F
L: 66°F

Mon
H: 74°F
L: 59°F

Tue
H: 76°F
L: 59°F
Air Quality
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 123 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 8:27 PM
Daylight: 15 hrs 6 mins
Moon Transit: 10:17 AM
Moonset: 6:00 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:47 AM - 12:17 AM
Minor Periods
5:30 PM - 7:00 PM2:18 AM - 3:48 AM
Action Rating: 2 out of 5
Air Quality Alert issued June 11 at 2:38PM EDT by NWS Upton NY
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Thu June 11, 2026, 2:38 PM
Expires: Fri June 12, 2026, 2:45 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, and Southern New London. until 11 PM EDT this evening. 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 12 at 2:02AM EDT by NWS Upton NY
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Fri June 12, 2026, 2:02 AM
Expires: Fri June 12, 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, and Southern New London, from 11 AM this morning to 11 PM EDT this evening. 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 11 at 11:17PM EDT by NWS Upton NY
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Thu June 11, 2026, 11:17 PM
Expires: Fri June 12, 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, and Southern New London. until 11 PM EDT Friday evening. 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
Coastal Flood Statement issued June 12 at 5:12AM EDT until June 13 at 12:00AM EDT by NWS Upton NY
Effective: Fri June 12, 2026, 5:12 AM
Expires: Fri June 12, 2026, 8:00 PM
* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southern Fairfield County. * WHEN...This evening. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline.
Do not drive through flooded roadways.
Heat Advisory issued June 12 at 2:55AM EDT until June 12 at 8:00PM EDT by NWS Upton NY
Effective: Fri June 12, 2026, 2:55 AM
Expires: Fri June 12, 2026, 8:00 PM
* WHAT...Heat index values up to 101. * WHERE...In Connecticut, Northern Fairfield, Northern Middlesex, Northern New Haven, Southern Fairfield, and Southern New Haven Counties. In New York, Northern Nassau, Northwest Suffolk, Southern Nassau, and Southwest Suffolk Counties. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
A Heat Advisory is issued when the combination of heat and humidity is expected to make it feel like it is 95 to 99 degrees for two or more consecutive days, or 100 to 104 degrees for any length of time. Seniors and those with chronic health problems or mental health conditions are at an increased risk. Homes without air conditioning can be much hotter than outdoor temperatures. Use air conditioning to stay cool at home or go to a place that has air conditioning. If you don't have home air conditioning, continue to seek out cool spaces each day as long as it remains hot, and for a few days after if your home is still hot. Check on vulnerable friends, family members and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! In cases of heat stroke call 9 1 1.
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.54 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 86.63 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 8:27 PM
Daylight: 15 hrs 6 mins
Moon Transit: 10:17 AM
Moonset: 6:00 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:47 AM - 12:17 AM
Minor Periods
5:30 PM - 7:00 PM2:18 AM - 3:48 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.13 μg/m3
Sulphur Dioxide: 0.68 μg/m3
Ozone: 88.46 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 8:27 PM
Daylight: 15 hrs 7 mins
Moon Transit: 11:18 AM
Moonset: 7:20 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%
Best Times for Fishing or Hunting
Major Periods
12:35 AM - 3:05 AM10:48 AM - 1:18 PM
Minor Periods
6:50 PM - 8:20 PM2:57 AM - 4:27 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 15.28 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 96.21 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 8:28 PM
Daylight: 15 hrs 7 mins
Moon Transit: 12:24 AM
Moonset: 8:36 PM
Moon Phase: New
Moon Illumination: 0.7%
Best Times for Fishing or Hunting
Major Periods
1:39 AM - 4:09 AM11:54 AM - 2:24 PM
Minor Periods
8:06 PM - 9:36 PM3:48 AM - 5:18 AM
Action Rating: 5 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.75 μg/m3
Sulphur Dioxide: 0.68 μg/m3
Ozone: 70.79 μg/m3
Astronomical
Sun Transit: 12:54 AM
Sunset: 8:28 PM
Daylight: 15 hrs 8 mins
Moon Transit: 1:32 PM
Moonset: 9:40 PM
Moon Phase: New
Moon Illumination: 3.8%
Best Times for Fishing or Hunting
Major Periods
2:47 AM - 5:17 AM1:02 PM - 3:32 PM
Minor Periods
9:10 PM - 10:40 PM4:51 AM - 6:21 AM
Action Rating: 5 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 8.54 μg/m3
Sulphur Dioxide: 0.69 μg/m3
Ozone: 51.11 μg/m3
Astronomical
Sun Transit: 12:54 AM
Sunset: 8:29 PM
Daylight: 15 hrs 8 mins
Moon Transit: 2:38 PM
Moonset: 10:31 PM
Moon Phase: New
Moon Illumination: 1.0%
Best Times for Fishing or Hunting
Major Periods
3:54 AM - 6:24 AM2:08 PM - 4:38 PM
Minor Periods
10:01 PM - 11:31 PM6:06 AM - 7:36 AM
Action Rating: 3 out of 5
