Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 2h 46m at 4:09 pm (0.3 ft)
Next high tide : 10:21 pm (8.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:31 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Feb 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:106.610:436.04:050.84:370.17:045:08Full Moon1Mon
2Tue10:496.611:196.14:460.75:140.17:035:09Full Moon2Tue
3Wed11:266.511:546.35:250.65:490.07:025:11Full Moon3Wed
4Thu12:026.56:030.56:220.17:015:12Full Moon4Thu
5Fri12:286.412:406.56:400.46:560.17:005:13Waning Gibbous5Fri
6Sat1:046.61:186.47:180.47:320.26:595:14Waning Gibbous6Sat
7Sun1:416.71:596.27:590.38:090.36:575:16Waning Gibbous7Sun
8Mon2:216.72:446.18:430.48:510.56:565:17Waning Gibbous8Mon
9Tue3:066.73:335.99:330.49:390.76:555:18Third Quarter9Tue
10Wed3:556.74:295.710:280.410:350.86:545:19Third Quarter10Wed
11Thu4:516.75:305.611:290.411:360.86:535:21Third Quarter11Thu
12Fri5:536.86:355.712:310.26:515:22Third Quarter12Fri
13Sat6:566.97:396.012:410.71:330.06:505:23Waning Crescent13Sat
14Sun7:587.28:386.41:450.52:31-0.46:495:24Waning Crescent14Sun
15Mon8:577.59:336.92:450.13:26-0.76:485:26Waning Crescent15Mon
16Tue9:527.810:257.43:43-0.34:17-1.06:465:27New Moon16Tue
17Wed10:447.911:147.84:37-0.75:05-1.36:455:28New Moon17Wed
18Thu11:358.05:29-1.05:53-1.36:445:29New Moon18Thu
19Fri12:038.112:257.86:19-1.26:40-1.26:425:30Waxing Crescent19Fri
20Sat12:518.21:157.67:10-1.17:27-1.06:415:32Waxing Crescent20Sat
21Sun1:398.12:067.28:01-0.98:17-0.66:395:33Waxing Crescent21Sun
22Mon2:297.82:596.88:54-0.69:09-0.16:385:34First Quarter22Mon
23Tue3:217.43:546.39:50-0.210:040.36:365:35First Quarter23Tue
24Wed4:177.04:535.910:490.211:030.76:355:36First Quarter24Wed
25Thu5:166.65:575.611:500.46:335:38First Quarter25Thu
26Fri6:196.47:025.512:051.012:520.66:325:39Waxing Gibbous26Fri
27Sat7:206.38:015.61:061.11:500.66:305:40Waxing Gibbous27Sat
28Sun8:166.38:535.82:041.12:420.56:295:41Waxing Gibbous28Sun
29Mon9:056.49:366.02:561.03:280.46:275:42Waxing Gibbous29Mon
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 7:15 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 5% 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 (5% 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