Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide : 2:51 pm (1.2 ft)
Next high tide : in 4h 16m at 8:51 am (6.1 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Sep 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:235.87:416.51:161.21:301.76:207:24Waxing Gibbous1Thu
2Fri8:225.98:376.62:131.12:271.66:217:23Waxing Gibbous2Fri
3Sat9:146.19:286.73:061.03:201.46:227:21Waxing Gibbous3Sat
4Sun10:006.310:126.83:530.94:071.26:237:19Waxing Gibbous4Sun
5Mon10:406.610:537.04:350.74:510.96:247:18Full Moon5Mon
6Tue11:176.911:327.15:130.65:310.76:257:16Full Moon6Tue
7Wed11:537.25:490.46:090.46:267:14Full Moon7Wed
8Thu12:107.212:297.56:240.46:470.26:277:13Full Moon8Thu
9Fri12:497.21:067.77:000.37:270.06:287:11Waning Gibbous9Fri
10Sat1:307.21:477.87:380.38:100.06:297:09Waning Gibbous10Sat
11Sun2:147.12:327.98:190.48:570.06:307:08Waning Gibbous11Sun
12Mon3:037.03:217.89:070.59:510.16:317:06Waning Gibbous12Mon
13Tue3:566.84:177.710:020.710:510.36:327:04Third Quarter13Tue
14Wed4:576.65:207.511:060.911:560.46:337:03Third Quarter14Wed
15Thu6:036.56:287.412:150.96:347:01Third Quarter15Thu
16Fri7:126.67:377.41:030.41:240.86:356:59Waning Crescent16Fri
17Sat8:186.98:427.52:070.22:310.66:366:57Waning Crescent17Sat
18Sun9:187.39:427.63:070.03:320.26:376:56Waning Crescent18Sun
19Mon10:127.710:357.74:01-0.14:27-0.16:386:54Waning Crescent19Mon
20Tue11:017.911:247.74:51-0.25:18-0.36:396:52New Moon20Tue
21Wed11:468.15:37-0.26:05-0.46:406:51New Moon21Wed
22Thu12:107.612:288.16:21-0.16:49-0.46:416:49New Moon22Thu
23Fri12:547.51:107.97:030.17:32-0.26:426:47Waxing Crescent23Fri
24Sat1:377.21:517.77:440.48:150.06:436:45Waxing Crescent24Sat
25Sun2:206.92:337.48:260.78:590.36:446:44Waxing Crescent25Sun
26Mon3:046.63:187.19:111.09:470.76:456:42Waxing Crescent26Mon
27Tue3:526.34:076.810:001.310:401.06:466:40First Quarter27Tue
28Wed4:446.05:026.510:551.611:371.26:476:39First Quarter28Wed
29Thu5:425.96:016.411:541.76:486:37First Quarter29Thu
30Fri6:435.87:026.312:361.212:561.76:496:35First Quarter30Fri
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 11:51 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 84% 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 Gibbous (84% 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