Water Temperature of New Haven Harbor in New Haven, CT

Current Water Temperature

70.0°F

Measurement Time: Wednesday, October 8, 2025, 6:24 AM EDT

Today's Tides

 High: October 8, 12:11 AM, 7.05 ft
Low: October 8, 6:14 AM, -0.20 ft
 High: October 8, 12:29 PM, 7.95 ft
Low: October 8, 6:54 PM, -0.55 ft

Temperature Locations

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Local Points of Interest

East Haven, CT; East Shore Park; Long Island Sound

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New Haven Harbor

Station Name: New Haven
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet / 0 meters

Sensor Depth: -5.8 feet / -1.8 meters

Nearest Address:
1 Waterfront Street
New Haven, CT 06512
New Haven County

GPS Coordinates: 41.283333, -72.908333

Nearby Water Temperatures

Quinnipiac River, Wallingford, CT (12.0 mi)
Housatonic River, Stratford, CT (12.9 mi)
Naugatuck River, Beacon Falls, CT (13.6 mi)
Bridgeport Harbor, Bridgeport, CT (16.1 mi)
Rooster River, Bridgeport, CT (17.7 mi)
Mill River, Southport, CT (22.1 mi)
Mill River, Fairfield, CT (22.6 mi)
Flax Pond, Old Field, NY (25.3 mi)
Connecticut River, Middletown, CT (25.6 mi)
Saugatuck River, Westport Village, CT (26.4 mi)
Saugatuck River, Westport, CT (26.8 mi)
Norwalk River, Norwalk, CT (28.7 mi)
Peconic River, Riverhead, NY (28.9 mi)
Norwalk Harbor, Norwalk, CT (29.0 mi)
Norwalk River, Norwalk, CT (29.2 mi)

Weather for New Haven, Connecticut

Current Weather

69.1°F
Light rain
Conditions: Light rain
Humidity: 93%
Feels Like: 69.1°F
Wind: SW 13 mph
Wind Gusts: 19.5 mph
Pressure: 29.89 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Partly Cloudy
Wed
H: 68°F
L: 57°F
Sunny
Thu
H: 59°F
L: 45°F
Sunny
Fri
H: 59°F
L: 38°F
Patchy rain nearby
Sat
H: 66°F
L: 53°F
Moderate rain
Sun
H: 61°F
L: 54°F

Air Quality

PM2.5: 3.35 μg/m3
PM10: 3.35 μg/m3
Carbon Monoxide: 167.85 μg/m3
Nitrogen Dioxide: 12.35 μg/m3
Sulphur Dioxide: 3.85 μg/m3
Ozone: 59 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:39 AM
Sunset: 6:22 PM
Daylight: 11 hrs 25 mins
Moonrise: 7:00 PM
Moon Transit: 1:30 AM
Moonset: 8:47 AM
Moon Phase: Full
Moon Illumination: 95.8%

Best Times for Fishing or Hunting

Major Periods

1:00 AM - 3:30 AM
3:50 PM - 6:20 PM

Minor Periods

6:30 PM - 8:00 PM
8:17 AM - 9:47 AM

Action Rating: 5 out of 5

Freeze Watch issued October 8 at 1:28AM EDT until October 10 at 9:00AM EDT by NWS Albany NY

Effective: Wed October 8, 2025, 1:28 AM
Expires: Wed October 8, 2025, 5:15 PM

* WHAT...Sub-freezing temperatures as low as 26 possible. * WHERE...All of eastern New York excluding the southwest Adirondacks, all of southern Vermont, western Massachusetts and northwest Connecticut. * WHEN...From Thursday evening through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.
Wednesday, October 8, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 64.8°F
Average Humidity: 76%
Chance of Rain: 0%
Wind: 16.1 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 4.09 μg/m3
PM10: 4.73 μg/m3
Carbon Monoxide: 151.09 μg/m3
Nitrogen Dioxide: 7.61 μg/m3
Sulphur Dioxide: 2.45 μg/m3
Ozone: 69.44 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:39 AM
Sunset: 6:22 PM
Daylight: 11 hrs 25 mins
Moonrise: 7:00 PM
Moon Transit: 1:30 AM
Moonset: 8:47 AM
Moon Phase: Full
Moon Illumination: 95.8%

Best Times for Fishing or Hunting

Major Periods

1:00 AM - 3:30 AM
3:50 PM - 6:20 PM

Minor Periods

6:30 PM - 8:00 PM
8:17 AM - 9:47 AM

Action Rating: 5 out of 5

Thursday, October 9, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 52.7°F
Average Humidity: 53%
Chance of Rain: 0%
Wind: 13.4 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 3.37 μg/m3
PM10: 3.4 μg/m3
Carbon Monoxide: 168.89 μg/m3
Nitrogen Dioxide: 6.96 μg/m3
Sulphur Dioxide: 2.2 μg/m3
Ozone: 65.72 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:38 AM
Sunset: 6:20 PM
Daylight: 11 hrs 23 mins
Moonrise: 7:36 PM
Moon Transit: 2:26 AM
Moonset: 10:09 AM
Moon Phase: Waning Gibbous
Moon Illumination: 90.1%

Best Times for Fishing or Hunting

Major Periods

1:56 AM - 4:26 AM
4:49 PM - 7:19 PM

Minor Periods

7:06 PM - 8:36 PM
9:39 AM - 11:09 AM

Action Rating: 2 out of 5

Friday, October 10, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 49.2°F
Average Humidity: 59%
Chance of Rain: 0%
Wind: 10.3 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 4.64 μg/m3
PM10: 5.08 μg/m3
Carbon Monoxide: 220.33 μg/m3
Nitrogen Dioxide: 12.2 μg/m3
Sulphur Dioxide: 2.48 μg/m3
Ozone: 56.16 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:38 AM
Sunset: 6:18 PM
Daylight: 11 hrs 20 mins
Moonrise: 8:23 PM
Moon Transit: 3:27 AM
Moonset: 11:30 AM
Moon Phase: Waning Gibbous
Moon Illumination: 82.3%

Best Times for Fishing or Hunting

Major Periods

2:57 AM - 5:27 AM
5:51 PM - 8:21 PM

Minor Periods

7:53 PM - 9:23 PM
11:00 AM - 12:30 AM

Action Rating: 3 out of 5

Saturday, October 11, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 59.4°F
Average Humidity: 70%
Chance of Rain: 82%
Wind: 8.9 mph
UV Index: 0.6

Air Quality

AQI: 1 - Good
PM2.5: 8.66 μg/m3
PM10: 10.47 μg/m3
Carbon Monoxide: 259.39 μg/m3
Nitrogen Dioxide: 20.68 μg/m3
Sulphur Dioxide: 2.47 μg/m3
Ozone: 42.85 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:38 AM
Sunset: 6:17 PM
Daylight: 11 hrs 17 mins
Moonrise: 9:20 PM
Moon Transit: 4:30 AM
Moonset: 12:44 AM
Moon Phase: Waning Gibbous
Moon Illumination: 72.9%

Best Times for Fishing or Hunting

Major Periods

4:00 AM - 6:30 AM
6:55 PM - 9:25 PM

Minor Periods

8:50 PM - 10:20 PM
12:14 AM - 1:44 PM

Action Rating: 3 out of 5

Sunday, October 12, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 57°F
Average Humidity: 82%
Chance of Rain: 86%
Wind: 25.5 mph
UV Index: 0

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 12:38 AM
Sunset: 6:15 PM
Daylight: 11 hrs 15 mins
Moonrise: 10:28 PM
Moon Transit: 5:34 AM
Moonset: 1:46 PM
Moon Phase: Waning Gibbous
Moon Illumination: 62.3%

Best Times for Fishing or Hunting

Major Periods

5:04 AM - 7:34 AM
7:58 PM - 10:28 PM

Minor Periods

9:58 PM - 11:28 PM
1:16 PM - 2:46 PM

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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