Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Thursday, June 18, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide : 8:37 am (-0.7 ft)
Next high tide : in 3m at 2:11 am (8.1 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waxing Crescent (17% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Sep 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:426.69:587.03:320.63:500.96:207:25Waning Crescent1Wed
2Thu10:256.710:417.04:180.64:350.86:217:23Waning Crescent2Thu
3Fri11:046.911:197.04:590.55:160.76:227:21New Moon3Fri
4Sat11:407.011:567.05:360.55:550.66:237:20New Moon4Sat
5Sun12:157.16:120.56:320.56:247:18New Moon5Sun
6Mon12:327.012:507.26:470.57:080.56:257:16New Moon6Mon
7Tue1:097.01:267.37:210.67:460.46:267:15Waxing Crescent7Tue
8Wed1:476.92:047.47:570.68:250.46:277:13Waxing Crescent8Wed
9Thu2:286.92:457.48:360.79:090.56:287:11Waxing Crescent9Thu
10Fri3:136.83:327.39:200.89:580.56:297:10Waxing Crescent10Fri
11Sat4:026.64:237.310:110.910:530.66:307:08First Quarter11Sat
12Sun4:586.65:217.211:101.011:540.66:317:06First Quarter12Sun
13Mon5:596.66:247.312:130.96:327:04First Quarter13Mon
14Tue7:026.87:287.412:550.41:180.76:337:03Waxing Gibbous14Tue
15Wed8:047.18:307.71:560.22:200.36:347:01Waxing Gibbous15Wed
16Thu9:037.69:287.92:54-0.13:19-0.16:356:59Waxing Gibbous16Thu
17Fri9:578.110:238.23:48-0.44:15-0.56:366:58Waxing Gibbous17Fri
18Sat10:498.511:158.34:40-0.75:08-0.96:376:56Full Moon18Sat
19Sun11:398.75:30-0.85:59-1.16:386:54Full Moon19Sun
20Mon12:068.412:288.86:19-0.96:49-1.16:396:52Full Moon20Mon
21Tue12:568.31:168.87:08-0.77:39-1.06:406:51Waning Gibbous21Tue
22Wed1:468.02:068.57:57-0.58:29-0.76:416:49Waning Gibbous22Wed
23Thu2:367.72:578.28:47-0.19:21-0.46:426:47Waning Gibbous23Thu
24Fri3:297.33:497.79:400.310:160.06:436:46Third Quarter24Fri
25Sat4:237.04:457.310:360.711:130.46:446:44Third Quarter25Sat
26Sun5:216.75:447.011:360.96:456:42Third Quarter26Sun
27Mon6:226.56:456.712:120.712:361.16:466:40Third Quarter27Mon
28Tue7:226.47:446.61:100.81:351.16:476:39Waning Crescent28Tue
29Wed8:186.58:396.72:060.82:311.06:486:37Waning Crescent29Wed
30Thu9:086.79:286.72:570.83:210.96:496:35Waning Crescent30Thu
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 5:24 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 17% 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 Crescent (17% 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