Water Temperature of New Haven Harbor in New Haven, CT

Current Water Temperature

72.0°F

Measurement Time: Saturday, July 18, 2026, 2:48 AM EDT

Temperature Locations

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Local Points of Interest

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

New Haven Harbor

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

Elevation Above Sea Level: 0 feet

Sensor Depth: -6 feet

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 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 mi)
Norwalk River, Norwalk, CT (29.2 mi)

Weather for New Haven, Connecticut

Current Weather

66°F
Mist
Mist
66°F
67.5°F
93%
SW 4.3 mph
8.9 mph
67.5°F
63.1°F
0 in
0%
6 mi
1017 mbar
0

Five Day Weather Forecast

Smoky haze
Sat
H: 85°F
L: 67°F
Sunny
Sun
H: 80°F
L: 65°F
Sunny
Mon
H: 77°F
L: 59°F
Sunny
Tue
H: 76°F
L: 65°F
Patchy rain nearby
Wed
H: 83°F
L: 66°F

Air Quality

AQI: 1 - Good
PM2.5: 34.8 μg/m3
PM10: 37.3 μg/m3
Carbon Monoxide: 160 μg/m3
Nitrogen Dioxide: 12.5 μg/m3
Sulphur Dioxide: 1.7 μg/m3
Ozone: 84 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 12:57 AM
Sunset: 8:22 PM
Daylight: 14 hrs 48 mins
Moonrise: 10:30 AM
Moon Transit: 4:44 PM
Moonset: 10:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

6:13 AM - 8:43 AM
4:14 PM - 6:44 PM

Minor Periods

10:19 PM - 11:49 PM
10:00 AM - 11:30 AM

Action Rating: 2 out of 5

Small Craft Advisory issued July 17 at 2:36PM EDT until July 19 at 12:00AM EDT by NWS Upton NY

Effective: Fri July 17, 2026, 2:36 PM
Expires: Sat July 18, 2026, 6:00 AM

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt. * WHERE...Long Island Sound east of Port Jefferson and New Haven, Peconic and Gardiners Bays, and South Shore Bays from Jones Inlet through Shinnecock Bay. * WHEN...From noon Saturday to midnight EDT Saturday night. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Saturday, July 18, 2026

Weather Forecast

Smoky haze
85.3°F
66.6°F
71.7°F
89%
0.12 in
73%
0%
17 mph
4.2


Air Quality

AQI: 3 - Unhealthy for Sensitive Groups
PM2.5: 40.61 μg/m3
PM10: 43.28 μg/m3
Carbon Monoxide: 155.96 μg/m3
Nitrogen Dioxide: 6.81 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 104.08 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 12:57 AM
Sunset: 8:22 PM
Daylight: 14 hrs 48 mins
Moonrise: 10:30 AM
Moon Transit: 4:44 PM
Moonset: 10:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

6:13 AM - 8:43 AM
4:14 PM - 6:44 PM

Minor Periods

10:19 PM - 11:49 PM
10:00 AM - 11:30 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
79.5°F
65.3°F
72.7°F
65%
0 in
17%
0%
14.5 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 7.65 μg/m3
PM10: 7.74 μg/m3
Carbon Monoxide: 185.29 μg/m3
Nitrogen Dioxide: 3.96 μg/m3
Sulphur Dioxide: 0.85 μg/m3
Ozone: 88.17 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 12:58 AM
Sunset: 8:21 PM
Daylight: 14 hrs 46 mins
Moonrise: 11:37 AM
Moon Transit: 5:28 PM
Moonset: 11:10 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

6:57 AM - 9:27 AM
4:58 PM - 7:28 PM

Minor Periods

12:00 AM - 12:00 AM
11:07 AM - 12:37 AM

Action Rating: 2 out of 5

Monday, July 20, 2026

Weather Forecast

Sunny
77.1°F
59.3°F
69°F
50%
0 in
2%
0%
11 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 5.96 μg/m3
PM10: 6.73 μg/m3
Carbon Monoxide: 148.92 μg/m3
Nitrogen Dioxide: 4.52 μg/m3
Sulphur Dioxide: 0.57 μg/m3
Ozone: 81.17 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 12:58 AM
Sunset: 8:20 PM
Daylight: 14 hrs 44 mins
Moonrise: 12:43 AM
Moon Transit: 6:11 PM
Moonset: 12:10 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

7:41 AM - 10:11 AM
5:41 PM - 8:11 PM

Minor Periods

12:13 AM - 1:43 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, July 21, 2026

Weather Forecast

Sunny
75.5°F
65.1°F
70°F
78%
0.47 in
77%
0%
18.1 mph
5.2


Air Quality

AQI: 1 - Good
PM2.5: 9.48 μg/m3
PM10: 12.45 μg/m3
Carbon Monoxide: 155.13 μg/m3
Nitrogen Dioxide: 4.3 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 89.83 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:58 AM
Sunset: 8:19 PM
Daylight: 14 hrs 43 mins
Moonrise: 1:48 PM
Moon Transit: 6:56 PM
Moonset: 12:32 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

8:24 AM - 10:54 AM
6:26 PM - 8:56 PM

Minor Periods

1:18 PM - 2:48 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 22, 2026

Weather Forecast

Patchy rain nearby
82.7°F
66.1°F
74.9°F
80%
0.11 in
68%
0%
12.3 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 3.26 μg/m3
PM10: 4 μg/m3
Carbon Monoxide: 157.56 μg/m3
Nitrogen Dioxide: 3.97 μg/m3
Sulphur Dioxide: 0.67 μg/m3
Ozone: 78.22 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:58 AM
Sunset: 8:18 PM
Daylight: 14 hrs 41 mins
Moonrise: 2:53 PM
Moon Transit: 7:41 PM
Moonset: 12:56 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

9:09 AM - 11:39 AM
7:11 PM - 9:41 PM

Minor Periods

2:23 PM - 3:53 PM
12:00 AM - 12:00 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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