Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 3h 07m at 10:58 pm (0.4 ft)
Next high tide (tomorrow) : 5:00 am (6.9 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:20 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Dec 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:146.62:266.88:230.88:530.26:584:25Waxing Crescent1Sun
2Mon3:046.43:176.59:160.99:450.46:594:24First Quarter2Mon
3Tue3:556.34:126.210:121.110:370.67:004:24First Quarter3Tue
4Wed4:496.35:096.011:091.111:310.77:014:24First Quarter4Wed
5Thu5:436.36:065.912:060.97:024:24First Quarter5Thu
6Fri6:356.57:025.912:230.81:000.87:034:24Waxing Gibbous6Fri
7Sat7:246.67:536.01:130.81:500.57:044:24Waxing Gibbous7Sat
8Sun8:106.88:406.12:010.82:370.37:054:24Waxing Gibbous8Sun
9Mon8:537.09:246.22:460.73:210.17:064:24Waxing Gibbous9Mon
10Tue9:337.210:056.43:280.64:03-0.27:074:24Full Moon10Tue
11Wed10:147.410:476.54:100.54:44-0.47:074:24Full Moon11Wed
12Thu10:557.511:296.74:510.45:25-0.57:084:24Full Moon12Thu
13Fri11:387.65:330.36:08-0.77:094:24Full Moon13Fri
14Sat12:146.812:257.66:190.26:53-0.77:104:24Waning Gibbous14Sat
15Sun1:027.01:147.67:080.17:42-0.77:104:24Waning Gibbous15Sun
16Mon1:537.12:087.48:020.18:34-0.67:114:25Waning Gibbous16Mon
17Tue2:477.23:067.29:010.19:31-0.57:124:25Third Quarter17Tue
18Wed3:447.34:077.010:040.010:30-0.47:124:25Third Quarter18Wed
19Thu4:447.45:116.811:09-0.111:30-0.37:134:26Third Quarter19Thu
20Fri5:457.56:166.712:12-0.37:144:26Third Quarter20Fri
21Sat6:457.67:206.712:30-0.21:13-0.57:144:27Waning Crescent21Sat
22Sun7:437.78:196.81:29-0.22:11-0.77:154:27Waning Crescent22Sun
23Mon8:377.89:136.82:25-0.23:05-0.87:154:28Waning Crescent23Mon
24Tue9:287.810:046.83:18-0.13:56-0.97:164:28New Moon24Tue
25Wed10:167.710:516.84:08-0.14:44-0.97:164:29New Moon25Wed
26Thu11:017.611:366.74:550.05:28-0.87:164:30New Moon26Thu
27Fri11:447.45:400.26:11-0.67:174:30New Moon27Fri
28Sat12:196.612:277.16:240.36:53-0.47:174:31Waxing Crescent28Sat
29Sun1:016.51:106.97:080.47:35-0.27:174:32Waxing Crescent29Sun
30Mon1:446.51:546.67:530.68:180.07:174:32Waxing Crescent30Mon
31Tue2:286.42:416.48:410.79:050.37:174:33Waxing Crescent31Tue
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 1:59 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 transitional phase. Tonight's moon is 37% 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 shifting between spring and neap.

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 First Quarter (37% illuminated). This places Black Rock Harbor, CT in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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