Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 5h 43m at 11:18 am (0.2 ft)
Next high tide : 5:33 pm (7.4 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:20 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Feb 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:567.29:336.42:440.23:24-0.57:035:09Waning Crescent1Mon
2Tue9:467.210:216.53:370.24:13-0.57:025:10New Moon2Tue
3Wed10:327.111:046.54:260.24:57-0.57:015:12New Moon3Wed
4Thu11:147.011:446.65:100.25:37-0.47:005:13New Moon4Thu
5Fri11:546.95:520.26:16-0.36:595:14New Moon5Fri
6Sat12:226.612:346.86:320.26:53-0.26:575:15Waxing Crescent6Sat
7Sun1:006.61:136.67:120.37:310.06:565:17Waxing Crescent7Sun
8Mon1:396.61:556.47:540.38:110.26:555:18Waxing Crescent8Mon
9Tue2:196.62:386.28:390.48:530.46:545:19Waxing Crescent9Tue
10Wed3:036.53:266.09:260.59:400.66:535:20First Quarter10Wed
11Thu3:496.54:175.710:180.610:300.86:515:22First Quarter11Thu
12Fri4:406.45:135.611:130.611:241.06:505:23First Quarter12Fri
13Sat5:356.46:125.612:100.66:495:24First Quarter13Sat
14Sun6:326.57:105.712:211.01:060.46:485:25Waxing Gibbous14Sun
15Mon7:286.78:055.91:170.92:010.26:465:27Waxing Gibbous15Mon
16Tue8:216.98:576.32:120.72:52-0.16:455:28Waxing Gibbous16Tue
17Wed9:127.39:456.73:040.33:40-0.56:445:29Waxing Gibbous17Wed
18Thu10:017.610:327.23:55-0.14:27-0.86:425:30Full Moon18Thu
19Fri10:497.811:197.64:44-0.55:12-1.16:415:31Full Moon19Fri
20Sat11:387.95:33-0.85:58-1.26:395:33Full Moon20Sat
21Sun12:067.912:287.96:22-1.06:45-1.26:385:34Waning Gibbous21Sun
22Mon12:558.11:197.87:13-1.17:34-1.16:365:35Waning Gibbous22Mon
23Tue1:458.22:127.58:06-1.18:25-0.96:355:36Waning Gibbous23Tue
24Wed2:388.03:087.29:02-0.99:21-0.56:345:37Third Quarter24Wed
25Thu3:347.84:076.810:02-0.610:20-0.16:325:39Third Quarter25Thu
26Fri4:337.55:106.511:04-0.311:230.26:315:40Third Quarter26Fri
27Sat5:377.26:176.312:08-0.26:295:41Third Quarter27Sat
28Sun6:417.07:226.212:270.41:11-0.16:275:42Waning Crescent28Sun
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 2:25 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 neap phase. Tonight's moon is 48% 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 minimum.

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 First Quarter (48% illuminated). This places Black Rock Harbor, CT in a neap tide cycle, so tidal ranges are near their weekly minimum 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