Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 2h 26m at 2:51 pm (1.2 ft)
Next high tide : 9:04 pm (7.0 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Mar 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:207.69:527.53:11-0.33:43-0.86:255:44Waxing Gibbous1Wed
2Thu10:147.810:417.94:06-0.74:32-1.06:245:45Full Moon2Thu
3Fri11:047.811:288.14:58-1.05:19-1.16:225:46Full Moon3Fri
4Sat11:527.75:47-1.16:05-1.06:215:47Full Moon4Sat
5Sun12:148.112:407.56:34-1.16:50-0.76:195:48Waning Gibbous5Sun
6Mon1:008.01:277.27:21-0.87:36-0.46:185:49Waning Gibbous6Mon
7Tue1:467.72:156.88:10-0.58:230.16:165:50Waning Gibbous7Tue
8Wed2:337.33:046.49:00-0.19:140.56:145:52Third Quarter8Wed
9Thu3:246.93:586.09:540.310:080.96:135:53Third Quarter9Thu
10Fri4:186.54:565.710:520.611:071.26:115:54Third Quarter10Fri
11Sat5:186.35:595.511:520.86:095:55Third Quarter11Sat
12Sun7:196.18:015.612:081.31:510.97:086:56Waning Crescent12Sun
13Mon8:196.18:565.72:081.32:460.87:066:57Waning Crescent13Mon
14Tue9:136.29:446.03:041.13:350.77:046:58Waning Crescent14Tue
15Wed10:006.310:266.33:540.94:190.67:036:59Waning Crescent15Wed
16Thu10:426.511:036.54:380.74:580.47:017:00Waning Crescent16Thu
17Fri11:206.611:386.85:180.45:350.46:597:02New Moon17Fri
18Sat11:576.75:560.26:090.36:587:03New Moon18Sat
19Sun12:137.012:346.76:330.06:440.26:567:04New Moon19Sun
20Mon12:487.21:126.87:10-0.17:190.26:547:05Waxing Crescent20Mon
21Tue1:267.41:536.77:49-0.27:570.36:537:06Waxing Crescent21Tue
22Wed2:077.52:386.68:33-0.28:410.46:517:07Waxing Crescent22Wed
23Thu2:547.43:286.59:21-0.19:310.56:497:08Waxing Crescent23Thu
24Fri3:467.34:246.410:170.010:310.66:487:09First Quarter24Fri
25Sat4:447.25:266.311:190.111:380.76:467:10First Quarter25Sat
26Sun5:507.16:336.412:250.26:447:11First Quarter26Sun
27Mon6:587.07:406.612:480.61:290.16:437:12First Quarter27Mon
28Tue8:067.18:437.01:550.42:31-0.16:417:13Waxing Gibbous28Tue
29Wed9:097.39:397.52:590.03:28-0.36:397:15Waxing Gibbous29Wed
30Thu10:057.510:317.83:57-0.44:20-0.56:387:16Waxing Gibbous30Thu
31Fri10:577.611:188.14:50-0.75:09-0.56:367:17Full 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 5:57 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 84% 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 Waxing Gibbous (84% 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