Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 4h 56m at 2:17 pm (1.5 ft)
Next high tide : 8:30 pm (6.8 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:41 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Jan 2078

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:576.61:066.97:030.47:31-0.37:184:35Waning Gibbous1Sat
2Sun1:416.51:526.67:500.58:150.07:184:36Waning Gibbous2Sun
3Mon2:266.42:396.38:390.69:010.27:184:36Waning Gibbous3Mon
4Tue3:126.43:296.09:300.79:480.57:184:37Third Quarter4Tue
5Wed4:006.34:215.810:240.810:380.77:184:38Third Quarter5Wed
6Thu4:506.35:175.611:180.811:300.97:174:39Third Quarter6Thu
7Fri5:426.36:135.512:130.77:174:40Third Quarter7Fri
8Sat6:346.47:095.512:221.01:060.67:174:41Waning Crescent8Sat
9Sun7:256.58:025.51:131.01:580.47:174:42Waning Crescent9Sun
10Mon8:136.68:505.72:031.02:460.27:174:43Waning Crescent10Mon
11Tue8:596.89:365.92:510.93:320.07:164:44Waning Crescent11Tue
12Wed9:437.010:196.13:370.74:16-0.27:164:45New Moon12Wed
13Thu10:277.211:036.44:220.54:58-0.57:164:47New Moon13Thu
14Fri11:117.411:466.75:070.35:40-0.77:154:48New Moon14Fri
15Sat11:577.55:520.06:23-0.87:154:49New Moon15Sat
16Sun12:327.012:457.56:40-0.27:08-0.97:144:50Waxing Crescent16Sun
17Mon1:197.31:357.47:31-0.37:55-0.87:144:51Waxing Crescent17Mon
18Tue2:087.42:297.18:25-0.48:46-0.77:134:52Waxing Crescent18Tue
19Wed3:007.53:256.99:23-0.49:41-0.47:134:53First Quarter19Wed
20Thu3:567.54:266.610:23-0.410:39-0.27:124:55First Quarter20Thu
21Fri4:557.55:296.311:26-0.411:400.07:124:56First Quarter21Fri
22Sat5:567.46:356.212:29-0.47:114:57Waxing Gibbous22Sat
23Sun6:587.37:396.212:420.21:31-0.47:104:58Waxing Gibbous23Sun
24Mon7:597.38:396.21:440.22:30-0.47:095:00Waxing Gibbous24Mon
25Tue8:557.39:346.32:430.33:25-0.57:095:01Waxing Gibbous25Tue
26Wed9:477.310:246.43:370.24:16-0.57:085:02Full Moon26Wed
27Thu10:357.211:096.54:280.25:02-0.57:075:03Full Moon27Thu
28Fri11:197.111:516.55:140.25:44-0.47:065:04Full Moon28Fri
29Sat12:016.95:580.26:23-0.37:055:06Full Moon29Sat
30Sun12:316.612:426.76:400.37:02-0.27:045:07Waning Gibbous30Sun
31Mon1:106.61:236.57:220.37:410.07:035:08Waning Gibbous31Mon
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 5:23 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 transitional phase. Tonight's moon is 79% 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 Gibbous (79% 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