Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide (tomorrow) : 3:58 am (-0.4 ft)
Next high tide : in 3h 23m at 9:24 pm (8.1 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:30 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - May 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:167.08:437.82:100.22:300.15:507:49Waning Crescent1Mon
2Tue9:147.29:368.23:08-0.33:24-0.15:487:50Waning Crescent2Tue
3Wed10:097.410:278.54:03-0.74:17-0.25:477:51Waning Crescent3Wed
4Thu11:017.611:178.64:55-1.05:08-0.35:467:52New Moon4Thu
5Fri11:527.65:46-1.15:58-0.35:457:53New Moon5Fri
6Sat12:068.612:427.56:35-1.16:48-0.25:437:55New Moon6Sat
7Sun12:568.41:337.47:24-0.97:380.15:427:56Waxing Crescent7Sun
8Mon1:468.12:247.18:14-0.68:300.45:417:57Waxing Crescent8Mon
9Tue2:387.73:166.99:06-0.29:240.75:407:58Waxing Crescent9Tue
10Wed3:317.34:116.79:590.110:220.95:397:59First Quarter10Wed
11Thu4:276.95:076.610:550.511:221.15:388:00First Quarter11Thu
12Fri5:256.56:046.511:510.75:378:01First Quarter12Fri
13Sat6:256.37:006.512:221.212:460.95:368:02First Quarter13Sat
14Sun7:256.27:536.61:201.11:391.05:358:03Waxing Gibbous14Sun
15Mon8:206.18:416.82:150.92:281.15:348:04Waxing Gibbous15Mon
16Tue9:106.19:256.93:050.83:151.15:338:05Waxing Gibbous16Tue
17Wed9:556.210:057.03:500.63:581.15:328:06Waxing Gibbous17Wed
18Thu10:376.210:447.14:330.54:391.15:318:07Waxing Gibbous18Thu
19Fri11:166.311:217.25:130.45:181.15:308:08Full Moon19Fri
20Sat11:546.311:587.25:520.35:561.15:298:08Full Moon20Sat
21Sun12:336.46:300.26:341.15:298:09Full Moon21Sun
22Mon12:377.31:136.57:080.27:141.05:288:10Full Moon22Mon
23Tue1:197.31:566.67:490.17:571.05:278:11Waning Gibbous23Tue
24Wed2:047.32:436.78:330.18:471.05:268:12Waning Gibbous24Wed
25Thu2:537.23:336.89:210.29:420.95:268:13Waning Gibbous25Thu
26Fri3:477.14:267.010:130.210:420.85:258:14Third Quarter26Fri
27Sat4:457.05:237.211:090.211:450.65:248:15Third Quarter27Sat
28Sun5:476.96:217.512:070.35:248:15Third Quarter28Sun
29Mon6:506.97:207.812:470.31:050.25:238:16Third Quarter29Mon
30Tue7:536.98:178.01:480.02:020.25:238:17Waning Crescent30Tue
31Wed8:537.09:138.22:47-0.32:590.25:228:18Waning Crescent31Wed
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 12:41 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 11% 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 Crescent (11% 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