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 : 7:48 pm (-0.1 ft)
Next high tide : in 5h 47m at 1:36 pm (7.8 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 - Mar 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:596.36:415.512:360.76:265:43First Quarter1Fri
2Sat6:596.57:405.812:481.11:340.46:255:44Waxing Gibbous2Sat
3Sun7:566.88:346.21:460.92:270.16:235:45Waxing Gibbous3Sun
4Mon8:507.19:236.72:420.53:17-0.26:225:47Waxing Gibbous4Mon
5Tue9:417.410:117.23:340.04:04-0.66:205:48Full Moon5Tue
6Wed10:307.710:577.74:24-0.44:50-0.96:185:49Full Moon6Wed
7Thu11:187.811:438.15:13-0.85:35-1.06:175:50Full Moon7Thu
8Fri12:077.96:02-1.16:21-1.16:155:51Waning Gibbous8Fri
9Sat12:318.312:577.76:51-1.27:08-0.96:145:52Waning Gibbous9Sat
10Sun1:208.31:497.57:43-1.17:59-0.76:125:53Waning Gibbous10Sun
11Mon2:118.22:437.18:37-0.98:53-0.36:105:55Waning Gibbous11Mon
12Tue3:067.83:416.79:35-0.59:520.16:095:56Third Quarter12Tue
13Wed4:047.44:446.410:37-0.210:550.56:075:57Third Quarter13Wed
14Thu5:087.15:516.211:410.16:055:58Third Quarter14Thu
15Fri6:156.86:596.112:010.712:460.26:045:59Waning Crescent15Fri
16Sat7:216.78:016.21:070.81:470.36:026:00Waning Crescent16Sat
17Sun8:206.78:556.42:080.72:430.26:006:01Waning Crescent17Sun
18Mon9:126.79:416.53:020.63:310.25:596:02Waning Crescent18Mon
19Tue9:576.710:206.73:500.54:130.25:576:03New Moon19Tue
20Wed10:366.710:566.84:320.44:510.25:556:04New Moon20Wed
21Thu11:136.711:306.95:110.35:260.35:546:05New Moon21Thu
22Fri11:496.65:470.25:590.45:526:07New Moon22Fri
23Sat12:036.912:246.56:230.26:330.55:506:08Waxing Crescent23Sat
24Sun12:377.01:016.46:590.27:080.65:496:09Waxing Crescent24Sun
25Mon1:146.91:406.37:370.37:450.85:476:10Waxing Crescent25Mon
26Tue1:536.92:236.18:190.48:271.05:456:11Waxing Crescent26Tue
27Wed2:376.73:105.99:060.69:151.25:436:12First Quarter27Wed
28Thu3:266.64:045.810:000.710:111.35:426:13First Quarter28Thu
29Fri4:226.55:045.810:590.811:141.35:406:14First Quarter29Fri
30Sat5:236.56:065.911:590.75:386:15First Quarter30Sat
31Sun6:276.67:076.312:181.112:580.55:376:16Waxing Gibbous31Sun
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 4:42 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 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