Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 2h 35m at 2:09 pm (0.6 ft)
Next high tide : 8:25 pm (7.9 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Jul 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:236.92:546.98:440.49:071.05:238:29Waning Gibbous1Mon
2Tue3:076.83:377.09:250.59:550.95:248:29Waning Gibbous2Tue
3Wed3:546.64:237.110:090.610:470.85:248:29Third Quarter3Wed
4Thu4:456.55:137.210:580.711:420.75:258:29Third Quarter4Thu
5Fri5:416.46:077.411:520.85:258:28Third Quarter5Fri
6Sat6:406.47:047.512:400.512:480.85:268:28Third Quarter6Sat
7Sun7:426.48:037.81:390.31:470.75:278:28Waning Crescent7Sun
8Mon8:426.69:018.02:380.02:470.65:278:27Waning Crescent8Mon
9Tue9:416.99:588.23:35-0.33:460.35:288:27Waning Crescent9Tue
10Wed10:377.210:538.44:30-0.64:430.15:298:27New Moon10Wed
11Thu11:317.611:478.55:23-0.85:39-0.25:298:26New Moon11Thu
12Fri12:237.86:15-1.06:33-0.35:308:26New Moon12Fri
13Sat12:408.41:158.07:05-1.07:27-0.45:318:25Waxing Crescent13Sat
14Sun1:338.22:068.17:54-0.98:20-0.45:328:25Waxing Crescent14Sun
15Mon2:267.92:578.18:44-0.79:14-0.25:328:24Waxing Crescent15Mon
16Tue3:197.63:487.99:34-0.310:090.05:338:24Waxing Crescent16Tue
17Wed4:137.24:417.710:270.111:060.25:348:23First Quarter17Wed
18Thu5:086.85:357.511:210.55:358:22First Quarter18Thu
19Fri6:066.46:307.212:030.412:160.85:368:22First Quarter19Fri
20Sat7:056.27:277.01:010.61:121.15:378:21Waxing Gibbous20Sat
21Sun8:056.08:226.91:580.72:081.25:378:20Waxing Gibbous21Sun
22Mon9:006.09:136.92:520.73:011.35:388:19Waxing Gibbous22Mon
23Tue9:506.010:006.93:430.73:511.35:398:18Waxing Gibbous23Tue
24Wed10:356.210:437.04:290.64:371.35:408:18Waxing Gibbous24Wed
25Thu11:166.311:227.05:110.55:201.25:418:17Full Moon25Thu
26Fri11:536.55:490.56:001.15:428:16Full Moon26Fri
27Sat12:017.012:306.76:250.46:380.95:438:15Full Moon27Sat
28Sun12:387.01:066.97:010.47:170.85:448:14Full Moon28Sun
29Mon1:167.01:437.17:360.37:560.75:458:13Waning Gibbous29Mon
30Tue1:567.02:227.28:120.48:380.65:468:12Waning Gibbous30Tue
31Wed2:396.93:037.48:510.49:230.55:478:11Waning Gibbous31Wed
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 5:17 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 20% 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 (20% 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