Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 5h 35m at 7:44 am (0.2 ft)
Next high tide : 1:53 pm (7.2 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Feb 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:327.34:006.59:57-0.210:150.07:025:10Third Quarter1Tue
2Wed4:277.04:576.110:540.011:110.47:015:11Third Quarter2Wed
3Thu5:236.75:575.911:520.27:005:12Third Quarter3Thu
4Fri6:216.56:575.812:080.612:500.36:595:14Waning Crescent4Fri
5Sat7:186.57:535.81:050.71:450.36:585:15Waning Crescent5Sat
6Sun8:106.58:445.91:590.82:360.36:575:16Waning Crescent6Sun
7Mon8:576.59:286.02:490.73:220.26:555:17Waning Crescent7Mon
8Tue9:406.610:086.23:350.64:040.16:545:19New Moon8Tue
9Wed10:196.710:466.44:170.54:420.06:535:20New Moon9Wed
10Thu10:576.711:226.64:560.45:19-0.16:525:21New Moon10Thu
11Fri11:346.811:586.85:340.25:54-0.26:515:22New Moon11Fri
12Sat12:126.86:120.16:30-0.26:495:24Waxing Crescent12Sat
13Sun12:356.912:526.86:500.07:06-0.26:485:25Waxing Crescent13Sun
14Mon1:157.11:346.87:32-0.17:46-0.16:475:26Waxing Crescent14Mon
15Tue1:577.22:206.78:17-0.18:310.06:455:27Waxing Crescent15Tue
16Wed2:447.23:126.59:08-0.19:230.16:445:28First Quarter16Wed
17Thu3:377.24:086.410:05-0.110:210.26:435:30First Quarter17Thu
18Fri4:357.25:116.411:07-0.111:240.26:415:31First Quarter18Fri
19Sat5:377.26:166.412:10-0.26:405:32First Quarter19Sat
20Sun6:427.37:216.712:290.11:13-0.46:385:33Waxing Gibbous20Sun
21Mon7:457.58:217.01:33-0.12:13-0.76:375:35Waxing Gibbous21Mon
22Tue8:447.89:187.42:34-0.43:09-1.06:355:36Waxing Gibbous22Tue
23Wed9:407.910:107.83:31-0.74:02-1.26:345:37Full Moon23Wed
24Thu10:328.011:008.04:25-1.04:52-1.36:335:38Full Moon24Thu
25Fri11:228.011:488.15:16-1.25:39-1.36:315:39Full Moon25Fri
26Sat12:117.96:05-1.26:26-1.16:305:40Waning Gibbous26Sat
27Sun12:358.012:597.66:53-1.07:12-0.86:285:42Waning Gibbous27Sun
28Mon1:227.91:467.27:41-0.87:59-0.56:265:43Waning Gibbous28Mon
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 10:48 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 91% 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 Gibbous (91% 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