Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide (tomorrow) : 7:08 am (0.3 ft)
Next high tide (tomorrow) : in 2h 10m at 12:46 am (7.1 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:46 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Nov 2086

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:186.88:456.42:040.82:380.77:245:48Waning Crescent1Fri
2Sat9:056.99:336.42:530.83:260.57:255:46Waning Crescent2Sat
3Sun8:487.09:166.42:390.83:110.46:274:45Waning Crescent3Sun
4Mon9:277.19:556.53:210.83:520.36:284:44New Moon4Mon
5Tue10:047.210:336.54:000.84:300.26:294:43New Moon5Tue
6Wed10:407.211:106.54:380.85:070.16:304:42New Moon6Wed
7Thu11:167.211:476.55:140.95:440.16:314:41New Moon7Thu
8Fri11:547.25:510.96:220.16:334:40Waxing Crescent8Fri
9Sat12:266.512:347.26:300.97:020.16:344:39Waxing Crescent9Sat
10Sun1:086.61:187.17:120.97:450.16:354:38Waxing Crescent10Sun
11Mon1:546.62:067.08:010.98:330.26:364:37Waxing Crescent11Mon
12Tue2:446.73:006.98:560.89:260.26:374:36First Quarter12Tue
13Wed3:396.83:596.89:560.710:230.36:394:35First Quarter13Wed
14Thu4:367.05:016.810:590.511:220.26:404:34First Quarter14Thu
15Fri5:367.36:056.812:020.26:414:33First Quarter15Fri
16Sat6:357.67:077.012:210.11:02-0.26:424:32Waxing Gibbous16Sat
17Sun7:328.08:067.21:19-0.12:00-0.66:434:32Waxing Gibbous17Sun
18Mon8:278.39:027.42:15-0.22:55-0.96:444:31Waxing Gibbous18Mon
19Tue9:198.59:557.53:09-0.43:48-1.26:464:30Full Moon19Tue
20Wed10:108.610:467.64:01-0.54:39-1.36:474:29Full Moon20Wed
21Thu11:018.511:367.54:53-0.55:29-1.36:484:29Full Moon21Thu
22Fri11:518.35:43-0.46:18-1.16:494:28Waning Gibbous22Fri
23Sat12:267.412:418.06:34-0.27:07-0.86:504:28Waning Gibbous23Sat
24Sun1:177.31:317.67:250.17:56-0.56:514:27Waning Gibbous24Sun
25Mon2:087.12:237.18:190.38:47-0.16:524:27Waning Gibbous25Mon
26Tue2:596.93:176.79:140.69:400.26:534:26Third Quarter26Tue
27Wed3:536.74:136.410:110.710:340.56:554:26Third Quarter27Wed
28Thu4:476.65:106.111:090.811:280.76:564:25Third Quarter28Thu
29Fri5:416.66:086.012:060.76:574:25Third Quarter29Fri
30Sat6:346.67:045.912:210.81:000.66:584:25Waning Crescent30Sat
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 3:57 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 99% 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 Full Moon (99% 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