Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 4h 31m at 6:22 am (0.4 ft)
Next high tide : 12:26 pm (6.3 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:23 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - May 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:346.411:407.15:310.35:381.05:507:49Full Moon1Tue
2Wed12:106.46:080.36:131.05:497:50Full Moon2Wed
3Thu12:157.112:476.46:440.36:491.05:487:51Full Moon3Thu
4Fri12:517.11:246.47:210.37:251.15:467:52Waning Gibbous4Fri
5Sat1:307.12:056.37:590.38:051.15:457:53Waning Gibbous5Sat
6Sun2:127.12:496.38:420.48:501.25:447:54Waning Gibbous6Sun
7Mon2:587.03:386.49:290.49:431.25:437:55Waning Gibbous7Mon
8Tue3:506.94:326.510:210.510:421.25:427:56Third Quarter8Tue
9Wed4:486.85:296.611:170.511:461.05:407:57Third Quarter9Wed
10Thu5:496.76:286.912:150.55:397:58Third Quarter10Thu
11Fri6:536.87:267.312:490.71:130.45:387:59Third Quarter11Fri
12Sat7:556.98:227.71:510.32:090.25:378:00Waning Crescent12Sat
13Sun8:557.19:168.12:49-0.23:040.15:368:01Waning Crescent13Sun
14Mon9:517.310:088.43:44-0.63:57-0.15:358:02Waning Crescent14Mon
15Tue10:447.410:598.64:37-0.94:49-0.25:348:03New Moon15Tue
16Wed11:357.511:498.65:29-1.15:40-0.25:338:04New Moon16Wed
17Thu12:267.56:19-1.16:31-0.15:328:05New Moon17Thu
18Fri12:408.51:177.47:09-0.97:230.15:318:06Waxing Crescent18Fri
19Sat1:318.22:097.28:00-0.78:150.35:308:07Waxing Crescent19Sat
20Sun2:237.83:027.08:51-0.39:100.65:308:08Waxing Crescent20Sun
21Mon3:177.43:566.99:440.010:070.85:298:09Waxing Crescent21Mon
22Tue4:127.04:526.710:390.311:071.05:288:10First Quarter22Tue
23Wed5:106.65:486.711:340.65:278:11First Quarter23Wed
24Thu6:096.36:436.712:071.112:290.85:278:12First Quarter24Thu
25Fri7:086.27:366.71:051.01:211.05:268:13First Quarter25Fri
26Sat8:046.18:256.81:590.92:121.15:258:14Waxing Gibbous26Sat
27Sun8:566.19:106.92:500.82:591.25:258:14Waxing Gibbous27Sun
28Mon9:436.19:527.03:370.63:441.25:248:15Waxing Gibbous28Mon
29Tue10:256.210:327.14:210.54:261.25:238:16Waxing Gibbous29Tue
30Wed11:066.211:107.15:020.45:061.25:238:17Full Moon30Wed
31Thu11:446.311:487.25:410.45:451.25:228:18Full Moon31Thu
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 9:24 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 100% 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 Full Moon (100% 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