Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Thursday, June 18, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 1h 02m at 9:01 pm (0.1 ft)
Next high tide (tomorrow) : 3:07 am (7.7 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 - Jan 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:517.88:286.91:38-0.32:20-0.97:184:34Waxing Gibbous1Sun
2Mon8:487.99:247.02:36-0.33:16-1.07:184:35Waxing Gibbous2Mon
3Tue9:417.910:167.13:31-0.44:08-1.17:184:36Full Moon3Tue
4Wed10:317.911:057.14:23-0.44:57-1.17:184:37Full Moon4Wed
5Thu11:197.711:527.15:13-0.45:43-1.07:184:38Full Moon5Thu
6Fri12:057.56:00-0.36:28-0.97:184:39Waning Gibbous6Fri
7Sat12:377.112:507.26:46-0.27:11-0.67:174:40Waning Gibbous7Sat
8Sun1:217.01:356.97:330.07:55-0.47:174:41Waning Gibbous8Sun
9Mon2:056.92:216.68:200.28:41-0.17:174:42Waning Gibbous9Mon
10Tue2:516.73:096.39:090.49:280.27:174:43Third Quarter10Tue
11Wed3:386.64:006.010:010.510:180.57:174:44Third Quarter11Wed
12Thu4:286.54:545.810:550.611:100.77:164:45Third Quarter12Thu
13Fri5:216.45:505.711:510.67:164:46Third Quarter13Fri
14Sat6:156.46:475.612:040.812:450.57:164:47Waning Crescent14Sat
15Sun7:076.57:415.712:570.81:380.47:154:49Waning Crescent15Sun
16Mon7:586.68:315.91:480.82:280.27:154:50Waning Crescent16Mon
17Tue8:456.89:186.12:370.73:140.07:144:51Waning Crescent17Tue
18Wed9:297.010:016.33:240.53:58-0.37:144:52New Moon18Wed
19Thu10:127.210:436.64:080.34:39-0.57:134:53New Moon19Thu
20Fri10:557.411:257.04:520.05:21-0.77:134:54New Moon20Fri
21Sat11:387.55:35-0.26:02-0.97:124:56New Moon21Sat
22Sun12:097.212:247.66:21-0.46:46-1.07:114:57Waxing Crescent22Sun
23Mon12:557.51:137.57:09-0.67:32-1.07:114:58Waxing Crescent23Mon
24Tue1:437.72:047.48:00-0.68:21-0.97:104:59Waxing Crescent24Tue
25Wed2:347.72:597.28:55-0.69:16-0.77:095:00First Quarter25Wed
26Thu3:297.73:586.99:55-0.610:14-0.57:085:02First Quarter26Thu
27Fri4:287.65:006.710:57-0.511:16-0.37:075:03First Quarter27Fri
28Sat5:307.56:066.512:01-0.57:075:04First Quarter28Sat
29Sun6:337.57:116.512:19-0.11:03-0.57:065:05Waxing Gibbous29Sun
30Mon7:357.48:136.61:21-0.12:04-0.67:055:07Waxing Gibbous30Mon
31Tue8:347.59:106.72:21-0.13:00-0.77:045:08Waxing Gibbous31Tue
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 12:04 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