Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 3h 34m at 9:59 pm (0.2 ft)
Next high tide (tomorrow) : 4:03 am (7.3 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:20 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Aug 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:497.410:098.43:41-0.63:58-0.15:488:09Waning Crescent1Wed
2Thu10:447.711:038.54:36-0.84:54-0.35:498:08New Moon2Thu
3Fri11:377.911:568.55:29-1.05:48-0.55:508:07New Moon3Fri
4Sat12:288.16:19-1.06:40-0.55:518:06New Moon4Sat
5Sun12:468.41:178.17:08-0.97:31-0.55:528:05Waxing Crescent5Sun
6Mon1:368.22:068.17:55-0.78:21-0.35:538:04Waxing Crescent6Mon
7Tue2:267.82:547.98:43-0.49:12-0.15:548:02Waxing Crescent7Tue
8Wed3:167.53:437.79:32-0.110:040.25:558:01Waxing Crescent8Wed
9Thu4:077.14:337.410:220.310:570.55:568:00First Quarter9Thu
10Fri5:006.75:257.211:150.711:530.75:577:59First Quarter10Fri
11Sat5:556.46:207.012:090.95:587:57First Quarter11Sat
12Sun6:536.27:166.912:490.81:041.15:597:56First Quarter12Sun
13Mon7:516.18:106.81:450.81:591.26:007:55Waxing Gibbous13Mon
14Tue8:456.29:026.92:380.82:521.26:017:53Waxing Gibbous14Tue
15Wed9:356.39:497.03:280.73:411.16:027:52Waxing Gibbous15Wed
16Thu10:206.510:327.14:140.64:271.06:037:50Waxing Gibbous16Thu
17Fri11:016.611:127.24:570.55:100.96:047:49Full Moon17Fri
18Sat11:396.911:517.35:360.35:500.76:057:47Full Moon18Sat
19Sun12:177.16:130.26:290.56:067:46Full Moon19Sun
20Mon12:307.312:547.36:500.17:080.46:077:45Full Moon20Mon
21Tue1:107.41:347.57:270.17:500.26:087:43Waning Gibbous21Tue
22Wed1:527.42:167.78:070.18:340.16:097:42Waning Gibbous22Wed
23Thu2:387.43:027.88:510.19:230.16:107:40Waning Gibbous23Thu
24Fri3:277.23:527.89:390.210:180.16:117:38Third Quarter24Fri
25Sat4:227.14:477.810:340.311:170.16:127:37Third Quarter25Sat
26Sun5:217.05:487.811:350.46:137:35Third Quarter26Sun
27Mon6:256.96:527.812:200.112:390.46:147:34Third Quarter27Mon
28Tue7:307.07:567.91:230.01:440.46:157:32Waning Crescent28Tue
29Wed8:347.28:588.02:25-0.22:460.26:167:31Waning Crescent29Wed
30Thu9:337.59:568.13:24-0.43:46-0.16:177:29Waning Crescent30Thu
31Fri10:287.810:508.24:19-0.64:41-0.36:187:27New Moon31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8467373)

Common Questions About Black Rock Harbor, CT Tides

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What time does the tide turn (slack tide) in Black Rock Harbor, CT today?

Slack tide in Black Rock Harbor, CT is approximately 1:01 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 Black Rock Harbor, CT?

Black Rock Harbor, CT is currently in a transitional phase. Tonight's moon is 27% 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 Black Rock Harbor, 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 Black Rock Harbor, CT?

Tide predictions for Black Rock Harbor, 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 Black Rock Harbor, CT?

Tide data for Black Rock Harbor, CT is sourced from NOAA Station #8467373. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8467373.

What is the moon phase in Black Rock Harbor, CT tonight?

Tonight the moon over Black Rock Harbor, CT is Waxing Crescent (27% illuminated). This places Black Rock Harbor, 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