Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 17m at 2:00 am (0.1 ft)
Next high tide : 8:04 am (6.5 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Jan 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:236.99:006.02:100.62:520.07:184:34Waning Crescent1Wed
2Thu9:106.99:466.03:000.73:390.07:184:35Waning Crescent2Thu
3Fri9:536.810:276.03:470.74:220.07:184:36New Moon3Fri
4Sat10:336.811:066.14:300.75:010.07:184:36New Moon4Sat
5Sun11:116.711:436.25:100.75:38-0.17:184:37New Moon5Sun
6Mon11:496.75:490.66:140.07:184:38New Moon6Mon
7Tue12:196.312:276.66:270.66:500.07:184:39Waxing Crescent7Tue
8Wed12:576.41:076.57:070.67:270.17:184:40Waxing Crescent8Wed
9Thu1:366.51:486.47:490.58:050.27:174:41Waxing Crescent9Thu
10Fri2:176.62:336.28:340.58:480.37:174:42Waxing Crescent10Fri
11Sat3:016.73:226.19:230.59:340.47:174:43First Quarter11Sat
12Sun3:496.74:155.910:170.410:260.67:174:44First Quarter12Sun
13Mon4:416.85:135.811:140.311:220.67:164:45First Quarter13Mon
14Tue5:386.96:155.812:130.27:164:47First Quarter14Tue
15Wed6:377.17:166.012:220.61:12-0.17:164:48Waxing Gibbous15Wed
16Thu7:367.38:156.31:220.42:10-0.47:154:49Waxing Gibbous16Thu
17Fri8:337.69:116.72:210.13:05-0.87:154:50Waxing Gibbous17Fri
18Sat9:287.910:047.23:18-0.23:58-1.17:144:51Full Moon18Sat
19Sun10:228.110:567.54:14-0.64:48-1.47:144:52Full Moon19Sun
20Mon11:148.111:477.85:07-0.95:37-1.57:134:53Full Moon20Mon
21Tue12:068.16:00-1.16:26-1.57:134:55Waning Gibbous21Tue
22Wed12:378.012:577.96:52-1.17:15-1.47:124:56Waning Gibbous22Wed
23Thu1:278.01:507.57:45-1.08:05-1.17:114:57Waning Gibbous23Thu
24Fri2:197.92:437.18:39-0.88:57-0.77:114:58Waning Gibbous24Fri
25Sat3:117.63:386.79:35-0.59:52-0.27:105:00Third Quarter25Sat
26Sun4:067.34:376.210:34-0.210:490.27:095:01Third Quarter26Sun
27Mon5:037.05:385.911:330.111:470.57:085:02Third Quarter27Mon
28Tue6:026.76:405.712:330.27:075:03Waning Crescent28Tue
29Wed7:016.67:405.712:460.71:310.37:065:04Waning Crescent29Wed
30Thu7:576.58:345.71:430.82:250.37:065:06Waning Crescent30Thu
31Fri8:476.59:225.82:360.83:140.27:055:07Waning Crescent31Fri
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 5:02 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 20% 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 (20% 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