Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide (tomorrow) : 3:34 am (0.6 ft)
Next high tide : in 2h 40m at 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 - Aug 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:486.82:137.08:050.68:280.85:498:09Waning Gibbous1Tue
2Wed2:286.72:527.18:420.79:100.85:508:08Waning Gibbous2Wed
3Thu3:116.63:347.19:210.89:560.85:518:06Waning Gibbous3Thu
4Fri3:576.44:197.110:050.910:470.85:528:05Third Quarter4Fri
5Sat4:476.25:107.110:541.111:440.85:538:04Third Quarter5Sat
6Sun5:436.16:067.111:501.25:548:03Third Quarter6Sun
7Mon6:456.17:077.212:430.712:511.25:558:02Third Quarter7Mon
8Tue7:486.28:097.41:440.61:541.05:568:00Waning Crescent8Tue
9Wed8:506.59:097.72:440.32:560.85:577:59Waning Crescent9Wed
10Thu9:476.910:068.03:410.03:550.45:587:58Waning Crescent10Thu
11Fri10:417.411:008.24:34-0.44:520.05:597:56New Moon11Fri
12Sat11:337.911:528.35:25-0.75:46-0.46:007:55New Moon12Sat
13Sun12:238.26:14-0.96:38-0.66:017:54New Moon13Sun
14Mon12:448.31:128.47:02-0.97:29-0.76:027:52Waxing Crescent14Mon
15Tue1:358.22:018.57:50-0.88:21-0.76:037:51Waxing Crescent15Tue
16Wed2:267.92:518.48:39-0.59:13-0.56:047:50Waxing Crescent16Wed
17Thu3:187.53:428.19:29-0.110:08-0.26:057:48First Quarter17Thu
18Fri4:137.14:367.710:230.311:050.26:067:47First Quarter18Fri
19Sat5:106.65:337.411:200.76:077:45First Quarter19Sat
20Sun6:106.36:337.112:050.512:201.16:087:44First Quarter20Sun
21Mon7:146.17:356.91:060.71:211.36:097:42Waxing Gibbous21Mon
22Tue8:166.08:346.82:060.82:201.46:107:41Waxing Gibbous22Tue
23Wed9:136.19:266.83:020.83:151.36:117:39Waxing Gibbous23Wed
24Thu10:016.310:136.83:520.84:051.26:127:38Waxing Gibbous24Thu
25Fri10:436.410:546.94:360.74:501.16:137:36Full Moon25Fri
26Sat11:216.611:326.95:150.65:300.96:147:34Full Moon26Sat
27Sun11:556.85:510.66:080.86:157:33Full Moon27Sun
28Mon12:086.912:297.06:250.66:440.76:167:31Full Moon28Mon
29Tue12:446.91:037.16:580.67:200.66:177:30Waning Gibbous29Tue
30Wed1:216.91:387.27:320.67:570.56:187:28Waning Gibbous30Wed
31Thu1:596.82:167.38:070.78:370.56:197:26Waning Gibbous31Thu
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 12:19 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 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