Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide : 3:09 pm (0.5 ft)
Next high tide : in 3h 42m at 9:06 am (6.7 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:30 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Apr 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:177.64:576.710:48-0.311:100.46:357:17First Quarter1Sun
2Mon5:207.26:036.511:520.06:347:18First Quarter2Mon
3Tue6:286.97:106.512:170.612:570.26:327:19First Quarter3Tue
4Wed7:356.88:146.61:240.61:580.36:317:20Waxing Gibbous4Wed
5Thu8:386.79:106.82:270.52:560.36:297:21Waxing Gibbous5Thu
6Fri9:346.79:597.03:250.43:470.36:277:22Waxing Gibbous6Fri
7Sat10:226.710:417.14:150.24:320.36:267:23Waxing Gibbous7Sat
8Sun11:056.711:197.14:590.15:130.46:247:24Full Moon8Sun
9Mon11:446.711:547.25:390.15:500.56:227:26Full Moon9Mon
10Tue12:206.66:170.16:260.66:217:27Full Moon10Tue
11Wed12:297.112:566.56:530.17:010.76:197:28Full Moon11Wed
12Thu1:047.11:326.47:290.27:360.86:187:29Waning Gibbous12Thu
13Fri1:407.02:116.38:070.38:141.06:167:30Waning Gibbous13Fri
14Sat2:206.92:536.28:480.48:561.16:147:31Waning Gibbous14Sat
15Sun3:036.83:396.19:330.69:441.36:137:32Waning Gibbous15Sun
16Mon3:516.64:296.010:230.810:381.46:117:33Third Quarter16Mon
17Tue4:446.55:256.011:170.811:391.46:107:34Third Quarter17Tue
18Wed5:436.46:236.212:140.86:087:35Third Quarter18Wed
19Thu6:446.47:206.512:401.21:100.76:077:36Third Quarter19Thu
20Fri7:446.68:156.91:400.92:040.66:057:37Waning Crescent20Fri
21Sat8:426.89:067.42:360.42:560.36:047:38Waning Crescent21Sat
22Sun9:357.19:557.93:30-0.13:460.16:027:39Waning Crescent22Sun
23Mon10:267.310:448.34:21-0.54:35-0.26:017:40New Moon23Mon
24Tue11:167.511:328.65:11-0.95:24-0.35:597:42New Moon24Tue
25Wed12:067.76:00-1.26:13-0.45:587:43New Moon25Wed
26Thu12:218.712:577.76:50-1.27:03-0.45:577:44New Moon26Thu
27Fri1:128.61:497.67:41-1.17:55-0.25:557:45Waxing Crescent27Fri
28Sat2:058.42:437.48:34-0.98:510.05:547:46Waxing Crescent28Sat
29Sun3:018.03:407.29:29-0.69:510.35:537:47Waxing Crescent29Sun
30Mon4:007.64:407.010:28-0.210:540.55:517:48First Quarter30Mon
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 12:07 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 11% 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 Waning Crescent (11% 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