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 2h 09m at 11:18 am (0.2 ft)
Next high tide : 5:33 pm (7.4 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 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:226.510:377.04:170.54:310.75:497:49Waning Crescent1Sat
2Sun11:026.611:147.14:580.45:100.75:487:50New Moon2Sun
3Mon11:406.611:497.25:370.35:460.85:477:52New Moon3Mon
4Tue12:166.66:140.26:220.85:467:53New Moon4Tue
5Wed12:237.212:526.66:500.26:570.95:457:54New Moon5Wed
6Thu12:597.21:306.67:270.27:340.95:437:55Waxing Crescent6Thu
7Fri1:387.22:116.68:050.28:131.05:427:56Waxing Crescent7Fri
8Sat2:197.22:556.58:470.28:581.05:417:57Waxing Crescent8Sat
9Sun3:057.13:446.59:340.39:501.15:407:58Waxing Crescent9Sun
10Mon3:577.04:376.610:270.410:481.05:397:59First Quarter10Mon
11Tue4:547.05:356.711:240.411:520.95:388:00First Quarter11Tue
12Wed5:556.96:357.012:230.35:378:01First Quarter12Wed
13Thu6:597.07:347.312:550.61:220.25:368:02First Quarter13Thu
14Fri8:027.18:327.81:570.22:190.05:358:03Waxing Gibbous14Fri
15Sat9:027.49:268.22:55-0.23:14-0.25:348:04Waxing Gibbous15Sat
16Sun9:587.610:188.53:51-0.74:08-0.35:338:05Waxing Gibbous16Sun
17Mon10:517.711:098.74:45-1.04:59-0.45:328:06Full Moon17Mon
18Tue11:437.811:588.85:36-1.25:50-0.55:318:07Full Moon18Tue
19Wed12:337.86:26-1.26:40-0.45:308:08Full Moon19Wed
20Thu12:488.61:247.77:16-1.17:31-0.25:298:09Waning Gibbous20Thu
21Fri1:398.42:157.58:06-0.98:230.15:288:10Waning Gibbous21Fri
22Sat2:308.03:087.28:57-0.59:160.45:288:10Waning Gibbous22Sat
23Sun3:237.64:027.09:50-0.210:130.75:278:11Waning Gibbous23Sun
24Mon4:187.14:576.810:450.211:120.95:268:12Third Quarter24Mon
25Tue5:156.85:546.711:400.55:268:13Third Quarter25Tue
26Wed6:146.56:506.712:111.012:360.75:258:14Third Quarter26Wed
27Thu7:136.37:446.71:101.01:300.85:248:15Third Quarter27Thu
28Fri8:096.38:346.82:050.92:210.95:248:16Waning Crescent28Fri
29Sat9:016.39:197.02:560.83:081.05:238:16Waning Crescent29Sat
30Sun9:486.310:017.13:430.63:531.05:238:17Waning Crescent30Sun
31Mon10:316.410:407.24:270.54:351.05:228:18Waning Crescent31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8467373)

Common Questions About Black Rock Harbor, CT Tides

Show All
What time does the tide turn (slack tide) in Black Rock Harbor, CT today?

Slack tide in Black Rock Harbor, CT is approximately 2:25 pm — 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