Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide : 7:25 am (-0.8 ft)
Next high tide : in 19m at 1:02 am (8.2 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:34 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - May 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:406.49:036.92:330.62:510.75:497:50Waxing Gibbous1Wed
2Thu9:306.59:477.03:230.53:380.85:487:51Waxing Gibbous2Thu
3Fri10:156.510:287.14:090.44:210.85:467:52Waxing Gibbous3Fri
4Sat10:556.511:057.14:510.35:010.85:457:53Full Moon4Sat
5Sun11:336.511:427.25:300.25:400.85:447:54Full Moon5Sun
6Mon12:106.66:080.26:160.85:437:55Full Moon6Mon
7Tue12:187.212:486.66:450.26:530.95:427:56Full Moon7Tue
8Wed12:557.21:266.67:220.17:310.95:407:57Waning Gibbous8Wed
9Thu1:347.22:076.78:010.28:120.95:397:58Waning Gibbous9Thu
10Fri2:167.22:516.78:430.28:580.95:387:59Waning Gibbous10Fri
11Sat3:037.13:396.89:290.29:490.95:378:00Waning Gibbous11Sat
12Sun3:547.14:316.910:200.310:470.85:368:01Third Quarter12Sun
13Mon4:507.05:267.111:150.311:480.65:358:02Third Quarter13Mon
14Tue5:506.96:257.312:120.35:348:03Third Quarter14Tue
15Wed6:527.07:237.612:490.41:110.25:338:04Third Quarter15Wed
16Thu7:547.18:218.01:500.02:080.15:328:05Waning Crescent16Thu
17Fri8:547.39:178.32:48-0.43:05-0.15:318:06Waning Crescent17Fri
18Sat9:517.510:108.63:44-0.74:00-0.35:318:07Waning Crescent18Sat
19Sun10:457.711:028.74:38-1.04:53-0.45:308:08New Moon19Sun
20Mon11:377.811:548.75:31-1.25:46-0.45:298:09New Moon20Mon
21Tue12:297.86:21-1.26:37-0.45:288:10New Moon21Tue
22Wed12:458.61:207.87:11-1.17:29-0.35:278:11Waxing Crescent22Wed
23Thu1:368.32:127.68:01-0.98:210.05:278:12Waxing Crescent23Thu
24Fri2:278.03:037.58:52-0.69:150.25:268:13Waxing Crescent24Fri
25Sat3:207.63:567.39:44-0.210:100.55:258:14Waxing Crescent25Sat
26Sun4:147.24:507.110:370.111:080.75:258:14First Quarter26Sun
27Mon5:106.85:447.011:310.45:248:15First Quarter27Mon
28Tue6:076.56:396.912:050.812:250.75:248:16First Quarter28Tue
29Wed7:056.37:326.91:020.81:180.85:238:17First Quarter29Wed
30Thu8:016.28:226.91:560.82:101.05:238:18Waxing Gibbous30Thu
31Fri8:536.29:097.02:480.72:591.05:228:18Waxing Gibbous31Fri
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 4:13 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 7% 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 (7% 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