Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 4h 08m at 4:09 pm (0.3 ft)
Next high tide : 10:21 pm (8.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:31 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Mar 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:486.410:156.23:420.84:090.36:265:43Full Moon1Tue
2Wed10:266.510:496.44:240.64:450.36:245:45Full Moon2Wed
3Thu11:036.511:236.65:020.55:190.26:235:46Full Moon3Thu
4Fri11:386.611:566.85:380.35:520.26:215:47Full Moon4Fri
5Sat12:146.56:130.26:250.36:205:48Waning Gibbous5Sat
6Sun12:306.912:516.56:500.16:590.36:185:49Waning Gibbous6Sun
7Mon1:077.01:316.47:280.17:360.46:165:50Waning Gibbous7Mon
8Tue1:477.12:156.38:110.18:180.66:155:51Waning Gibbous8Tue
9Wed2:327.03:056.19:000.29:080.76:135:53Third Quarter9Wed
10Thu3:246.94:016.09:570.310:070.96:115:54Third Quarter10Thu
11Fri4:226.95:055.911:000.411:140.96:105:55Third Quarter11Fri
12Sat5:286.96:126.012:050.36:085:56Third Quarter12Sat
13Sun6:367.07:186.412:230.71:080.16:065:57Waning Crescent13Sun
14Mon7:417.28:186.91:290.42:08-0.26:055:58Waning Crescent14Mon
15Tue8:417.59:127.42:310.03:03-0.56:035:59Waning Crescent15Tue
16Wed9:367.710:037.93:28-0.53:54-0.86:016:00New Moon16Wed
17Thu10:287.810:518.24:21-0.94:42-0.96:006:01New Moon17Thu
18Fri11:177.811:388.35:11-1.25:29-0.95:586:03New Moon18Fri
19Sat12:067.75:59-1.26:15-0.85:566:04New Moon19Sat
20Sun12:258.312:537.56:47-1.17:01-0.55:556:05Waxing Crescent20Sun
21Mon1:118.11:427.17:35-0.87:49-0.15:536:06Waxing Crescent21Mon
22Tue1:597.72:326.78:25-0.48:390.35:516:07Waxing Crescent22Tue
23Wed2:497.33:246.39:180.19:340.85:506:08First Quarter23Wed
24Thu3:436.84:225.910:150.510:331.15:486:09First Quarter24Thu
25Fri4:426.55:235.711:150.711:351.35:466:10First Quarter25Fri
26Sat5:446.26:275.712:160.95:456:11First Quarter26Sat
27Sun6:476.17:265.812:371.31:130.95:436:12Waxing Gibbous27Sun
28Mon7:446.28:176.11:351.22:050.85:416:13Waxing Gibbous28Mon
29Tue8:346.39:006.32:271.02:510.75:406:14Waxing Gibbous29Tue
30Wed9:186.49:396.63:140.83:330.65:386:15Waxing Gibbous30Wed
31Thu9:586.510:146.83:550.64:100.65:366:16Full Moon31Thu
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 7:15 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 Black Rock Harbor, CT?

Black Rock Harbor, CT is currently in a spring phase. Tonight's moon is 5% 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 near their weekly maximum.

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 Waning Crescent (5% illuminated). This places Black Rock Harbor, CT in a spring tide cycle, so tidal ranges are near their weekly maximum 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