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 2h 55m at 8:37 am (-0.7 ft)
Next high tide : 2:49 pm (7.6 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 - Dec 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:417.310:136.63:360.64:10-0.26:594:24New Moon1Wed
2Thu10:227.510:556.84:180.44:52-0.47:004:24New Moon2Thu
3Fri11:057.711:397.05:010.35:34-0.67:014:24New Moon3Fri
4Sat11:507.75:450.16:17-0.77:024:24Waxing Crescent4Sat
5Sun12:247.112:377.76:320.07:03-0.87:034:24Waxing Crescent5Sun
6Mon1:137.31:287.77:23-0.17:53-0.77:044:24Waxing Crescent6Mon
7Tue2:057.42:237.58:18-0.18:46-0.67:054:24Waxing Crescent7Tue
8Wed3:007.53:227.29:18-0.19:44-0.57:064:24First Quarter8Wed
9Thu3:577.64:247.010:21-0.210:43-0.47:064:24First Quarter9Thu
10Fri4:587.65:286.811:25-0.311:44-0.27:074:24First Quarter10Fri
11Sat5:597.76:326.812:27-0.47:084:24Waxing Gibbous11Sat
12Sun6:597.77:356.812:44-0.21:27-0.67:094:24Waxing Gibbous12Sun
13Mon7:577.88:326.81:43-0.12:24-0.77:104:24Waxing Gibbous13Mon
14Tue8:507.89:266.92:38-0.13:18-0.87:104:24Waxing Gibbous14Tue
15Wed9:407.810:156.93:31-0.14:07-0.87:114:25Full Moon15Wed
16Thu10:277.711:016.94:200.04:53-0.87:124:25Full Moon16Thu
17Fri11:117.511:446.85:060.15:37-0.77:124:25Full Moon17Fri
18Sat11:537.35:500.26:19-0.57:134:26Full Moon18Sat
19Sun12:266.712:367.16:330.37:00-0.37:134:26Waning Gibbous19Sun
20Mon1:086.71:186.87:170.47:41-0.17:144:27Waning Gibbous20Mon
21Tue1:506.62:026.68:020.58:240.17:154:27Waning Gibbous21Tue
22Wed2:346.62:496.38:500.79:100.37:154:28Waning Gibbous22Wed
23Thu3:206.53:396.19:410.79:590.57:154:28Third Quarter23Thu
24Fri4:096.54:325.910:350.810:500.77:164:29Third Quarter24Fri
25Sat5:016.55:285.711:300.711:420.87:164:29Third Quarter25Sat
26Sun5:546.56:245.712:250.67:164:30Third Quarter26Sun
27Mon6:466.67:195.812:350.81:180.47:174:31Waning Crescent27Mon
28Tue7:376.88:116.01:270.82:080.27:174:31Waning Crescent28Tue
29Wed8:267.09:006.22:170.62:57-0.17:174:32Waning Crescent29Wed
30Thu9:127.39:466.53:050.43:43-0.47:174:33New Moon30Thu
31Fri9:587.53:530.24:28-0.77:184:34New Moon31Fri
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 11:43 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