Tides Today & Tomorrow in New Haven, CT

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in New Haven, CT.
Next low tide : in 5h 31m at 12:39 pm (1.6 ft)
Next high tide : 6:55 pm (6.1 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 6:07 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8465705
Common Questions About Tides

New Haven, CT Tides - Aug 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:196.712:446.56:350.26:510.65:468:09Full Moon1Tue
2Wed12:586.61:236.57:120.37:310.65:478:08Waning Gibbous2Wed
3Thu1:386.52:026.57:490.48:120.75:488:07Waning Gibbous3Thu
4Fri2:196.42:426.58:260.58:530.75:498:06Waning Gibbous4Fri
5Sat3:006.23:226.59:050.69:370.85:498:05Waning Gibbous5Sat
6Sun3:446.04:046.59:460.810:240.95:508:03Third Quarter6Sun
7Mon4:305.94:496.410:300.911:150.95:518:02Third Quarter7Mon
8Tue5:215.75:416.511:211.05:528:01Third Quarter8Tue
9Wed6:185.76:386.512:110.912:181.15:538:00Third Quarter9Wed
10Thu7:185.87:386.71:100.71:181.05:547:58Waning Crescent10Thu
11Fri8:166.08:367.02:080.52:180.75:557:57Waning Crescent11Fri
12Sat9:136.39:337.33:050.23:160.45:577:56Waning Crescent12Sat
13Sun10:086.710:287.54:00-0.14:130.15:587:54New Moon13Sun
14Mon11:007.111:217.74:52-0.45:09-0.25:597:53New Moon14Mon
15Tue11:527.55:42-0.66:02-0.56:007:52New Moon15Tue
16Wed12:137.712:437.76:32-0.76:55-0.56:017:50New Moon16Wed
17Thu1:057.61:347.87:21-0.77:49-0.56:027:49Waxing Crescent17Thu
18Fri1:587.42:277.78:12-0.58:44-0.36:037:47Waxing Crescent18Fri
19Sat2:527.13:207.69:04-0.39:41-0.16:047:46Waxing Crescent19Sat
20Sun3:486.74:147.39:580.110:380.26:057:45First Quarter20Sun
21Mon4:446.45:117.010:550.411:370.46:067:43First Quarter21Mon
22Tue5:436.16:096.811:530.76:077:42First Quarter22Tue
23Wed6:446.07:096.612:380.612:540.96:087:40First Quarter23Wed
24Thu7:435.98:066.51:360.71:521.06:097:39Waxing Gibbous24Thu
25Fri8:386.08:596.62:310.72:470.96:107:37Waxing Gibbous25Fri
26Sat9:296.29:476.63:210.63:370.86:117:35Waxing Gibbous26Sat
27Sun10:146.410:326.74:070.54:240.76:127:34Waxing Gibbous27Sun
28Mon10:576.511:136.74:490.45:060.66:137:32Full Moon28Mon
29Tue11:366.711:536.75:280.45:470.56:147:31Full Moon29Tue
30Wed12:146.76:040.46:250.56:157:29Full Moon30Wed
31Thu12:316.612:516.86:400.47:030.56:167:27Full Moon31Thu
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 3:47 pm — 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 65% 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 (65% 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