Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 44m at 11:57 pm (0.5 ft)
Next high tide (tomorrow) : 5:59 am (6.6 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:20 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - May 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:346.56:156.212:060.85:507:49First Quarter1Sun
2Mon6:346.57:136.512:321.31:030.75:497:50First Quarter2Mon
3Tue7:356.68:086.91:311.01:570.65:477:51Waxing Gibbous3Tue
4Wed8:326.88:597.42:280.62:490.45:467:52Waxing Gibbous4Wed
5Thu9:267.19:487.83:220.13:390.15:457:53Waxing Gibbous5Thu
6Fri10:187.410:368.34:13-0.44:28-0.15:447:54Waxing Gibbous6Fri
7Sat11:087.611:248.65:03-0.85:16-0.35:427:55Full Moon7Sat
8Sun11:587.85:52-1.16:05-0.45:417:57Full Moon8Sun
9Mon12:138.712:487.86:41-1.36:55-0.45:407:58Full Moon9Mon
10Tue1:048.71:407.77:32-1.27:47-0.35:397:59Waning Gibbous10Tue
11Wed1:568.52:347.68:24-1.08:42-0.15:388:00Waning Gibbous11Wed
12Thu2:518.23:307.49:19-0.79:400.25:378:01Waning Gibbous12Thu
13Fri3:497.84:307.210:18-0.410:430.55:368:02Third Quarter13Fri
14Sat4:507.45:317.011:18-0.111:480.65:358:03Third Quarter14Sat
15Sun5:547.06:347.012:190.25:348:04Third Quarter15Sun
16Mon6:586.87:357.012:520.71:180.45:338:05Third Quarter16Mon
17Tue8:016.78:307.11:530.62:140.55:328:06Waning Crescent17Tue
18Wed8:576.69:197.22:490.53:060.65:318:07Waning Crescent18Wed
19Thu9:476.610:037.23:400.43:530.75:308:07Waning Crescent19Thu
20Fri10:326.610:437.24:260.34:360.85:298:08Waning Crescent20Fri
21Sat11:126.511:207.25:080.25:160.95:298:09New Moon21Sat
22Sun11:506.511:567.25:460.25:531.05:288:10New Moon22Sun
23Mon12:276.56:240.26:301.05:278:11New Moon23Mon
24Tue12:317.21:046.47:000.37:071.15:268:12New Moon24Tue
25Wed1:087.11:436.47:380.37:451.25:268:13Waxing Crescent25Wed
26Thu1:487.12:246.48:170.48:261.25:258:14Waxing Crescent26Thu
27Fri2:307.03:086.48:590.59:121.35:258:15Waxing Crescent27Fri
28Sat3:166.93:566.49:450.510:041.35:248:15Waxing Crescent28Sat
29Sun4:076.74:476.610:350.611:011.25:238:16First Quarter29Sun
30Mon5:026.75:416.711:290.65:238:17First Quarter30Mon
31Tue6:016.66:367.012:001.012:230.65:228:18First Quarter31Tue
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 2:58 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 neap phase. Tonight's moon is 48% 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 minimum.

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 (48% illuminated). This places Black Rock Harbor, CT in a neap tide cycle, so tidal ranges are near their weekly minimum 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