Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 9m at 8:31 pm (1.0 ft)
Next high tide (tomorrow) : 2:32 am (6.9 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:25 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Sep 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:466.07:076.912:441.012:561.46:197:26Third Quarter1Sun
2Mon7:476.18:067.11:420.81:551.36:207:24Waning Crescent2Mon
3Tue8:456.49:037.42:390.62:531.06:217:22Waning Crescent3Tue
4Wed9:386.99:567.73:320.33:480.66:227:21Waning Crescent4Wed
5Thu10:287.410:478.04:22-0.14:400.16:237:19New Moon5Thu
6Fri11:177.811:378.25:10-0.45:31-0.36:247:17New Moon6Fri
7Sat12:048.35:57-0.76:21-0.76:257:16New Moon7Sat
8Sun12:278.312:528.66:44-0.87:11-0.96:267:14New Moon8Sun
9Mon1:178.31:418.77:31-0.88:02-0.96:277:12Waxing Crescent9Mon
10Tue2:088.12:328.68:20-0.68:55-0.86:287:11Waxing Crescent10Tue
11Wed3:027.83:248.49:12-0.39:51-0.56:297:09Waxing Crescent11Wed
12Thu3:577.44:218.110:080.110:50-0.26:307:07First Quarter12Thu
13Fri4:577.05:207.711:090.511:520.26:317:06First Quarter13Fri
14Sat6:006.76:247.412:120.86:327:04First Quarter14Sat
15Sun7:066.57:297.112:560.41:160.96:337:02Waxing Gibbous15Sun
16Mon8:116.58:317.11:580.52:181.06:347:01Waxing Gibbous16Mon
17Tue9:096.69:277.02:560.53:160.96:356:59Waxing Gibbous17Tue
18Wed9:596.710:157.03:480.54:070.86:366:57Waxing Gibbous18Wed
19Thu10:436.910:587.04:340.54:520.76:376:55Full Moon19Thu
20Fri11:217.011:377.05:140.55:330.66:386:54Full Moon20Fri
21Sat11:567.05:510.56:110.66:396:52Full Moon21Sat
22Sun12:137.012:297.16:260.66:470.56:406:50Full Moon22Sun
23Mon12:486.91:037.27:000.77:230.56:416:49Waning Gibbous23Mon
24Tue1:246.81:387.27:340.88:000.56:426:47Waning Gibbous24Tue
25Wed2:026.72:167.28:100.98:390.66:436:45Waning Gibbous25Wed
26Thu2:436.62:577.18:481.19:230.76:446:43Waning Gibbous26Thu
27Fri3:276.43:427.09:321.210:120.86:456:42Waning Gibbous27Fri
28Sat4:176.24:346.910:231.411:080.96:466:40Third Quarter28Sat
29Sun5:136.15:326.811:221.56:476:38Third Quarter29Sun
30Mon6:146.26:346.812:080.912:261.46:486:37Third Quarter30Mon
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 11:31 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 88% 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 (88% 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