Tides Today & Tomorrow in New Haven, CT

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in New Haven, CT.
Next low tide : 9:59 am (0.9 ft)
Next high tide : in 3h 05m at 3:54 am (6.0 ft)
Sunset today : 7:46 pm
Sunrise tomorrow : 6:04 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8465705
Common Questions About Tides

New Haven, CT Tides - Jan 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:196.05:495.411:430.411:550.37:174:32First Quarter1Wed
2Thu6:166.36:495.512:440.17:174:33Waxing Gibbous2Thu
3Fri7:126.67:485.612:520.21:43-0.27:174:34Waxing Gibbous3Fri
4Sat8:096.98:465.81:490.02:40-0.57:174:35Waxing Gibbous4Sat
5Sun9:047.19:416.02:46-0.23:36-0.87:174:36Full Moon5Sun
6Mon9:597.310:356.23:42-0.44:30-1.07:174:37Full Moon6Mon
7Tue10:537.411:286.34:37-0.55:22-1.07:174:38Full Moon7Tue
8Wed11:477.35:31-0.66:14-1.07:174:39Full Moon8Wed
9Thu12:216.312:417.06:26-0.57:06-0.87:174:40Waning Gibbous9Thu
10Fri1:146.31:356.77:21-0.47:58-0.67:174:41Waning Gibbous10Fri
11Sat2:086.32:296.48:18-0.28:50-0.47:164:42Waning Gibbous11Sat
12Sun3:026.23:246.09:160.09:42-0.17:164:43Third Quarter12Sun
13Mon3:566.14:205.610:140.210:350.27:164:44Third Quarter13Mon
14Tue4:506.05:185.311:130.311:290.47:154:45Third Quarter14Tue
15Wed5:456.06:155.212:110.37:154:46Third Quarter15Wed
16Thu6:396.07:115.112:230.51:060.37:154:47Waning Crescent16Thu
17Fri7:306.08:025.21:140.61:570.27:144:48Waning Crescent17Fri
18Sat8:186.08:505.32:040.62:450.17:144:50Waning Crescent18Sat
19Sun9:046.19:355.42:510.53:290.07:134:51Waning Crescent19Sun
20Mon9:486.210:175.53:360.44:11-0.17:124:52New Moon20Mon
21Tue10:296.210:575.64:180.34:50-0.27:124:53New Moon21Tue
22Wed11:086.211:365.74:580.25:28-0.27:114:54New Moon22Wed
23Thu11:476.25:370.26:05-0.27:114:55New Moon23Thu
24Fri12:155.712:266.26:160.26:43-0.27:104:57Waxing Crescent24Fri
25Sat12:545.81:066.16:560.27:21-0.27:094:58Waxing Crescent25Sat
26Sun1:335.81:476.07:390.28:01-0.17:084:59Waxing Crescent26Sun
27Mon2:155.92:325.88:250.28:430.07:075:00Waxing Crescent27Mon
28Tue2:595.93:225.69:160.29:300.17:075:02First Quarter28Tue
29Wed3:486.04:185.410:120.210:240.27:065:03First Quarter29Wed
30Thu4:446.15:215.311:150.211:240.37:055:04First Quarter30Thu
31Fri5:466.26:265.312:200.17:045:05First Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8465705)

Common Questions About New Haven, CT Tides

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What time does the tide turn (slack tide) in New Haven, CT today?

Slack tide in New Haven, CT is approximately 6:56 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in New Haven, CT?

New Haven, CT is currently in a transitional phase. Tonight's moon is 36% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are New Haven, CT tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for New Haven, CT?

Tide predictions for New Haven, CT come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for New Haven, CT?

Tide data for New Haven, CT is sourced from NOAA Station #8465705. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8465705.

What is the moon phase in New Haven, CT tonight?

Tonight the moon over New Haven, CT is First Quarter (36% illuminated). This places New Haven, CT in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA