Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 4h 31m at 11:18 am (0.2 ft)
Next high tide : 5:33 pm (7.4 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:20 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Mar 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:436.98:226.31:300.52:100.06:265:43Waning Crescent1Mon
2Tue8:406.99:156.42:280.53:04-0.16:245:44Waning Crescent2Tue
3Wed9:306.910:006.53:210.43:52-0.16:235:46Waning Crescent3Wed
4Thu10:146.910:416.64:080.34:34-0.16:215:47New Moon4Thu
5Fri10:546.811:186.74:500.35:120.06:205:48New Moon5Fri
6Sat11:326.811:536.85:290.25:480.06:185:49New Moon6Sat
7Sun12:086.76:070.26:230.16:165:50New Moon7Sun
8Mon12:276.812:456.66:440.26:580.36:155:51Waxing Crescent8Mon
9Tue1:036.91:246.57:220.27:350.46:135:52Waxing Crescent9Tue
10Wed1:416.82:056.38:030.38:140.66:125:54Waxing Crescent10Wed
11Thu2:226.82:496.18:470.48:580.86:105:55Waxing Crescent11Thu
12Fri3:076.73:386.09:360.59:481.06:085:56First Quarter12Fri
13Sat3:586.64:335.810:310.610:441.16:075:57First Quarter13Sat
14Sun5:536.56:335.812:290.67:056:58First Quarter14Sun
15Mon6:546.67:345.912:441.11:280.57:036:59First Quarter15Mon
16Tue7:556.78:336.31:450.92:260.37:027:00Waxing Gibbous16Tue
17Wed8:537.09:286.72:440.63:200.07:007:01Waxing Gibbous17Wed
18Thu9:487.410:197.23:400.24:11-0.46:587:02Waxing Gibbous18Thu
19Fri10:407.711:077.84:33-0.35:00-0.76:577:03Full Moon19Fri
20Sat11:307.911:558.25:24-0.85:48-1.06:557:05Full Moon20Sat
21Sun12:208.16:14-1.26:35-1.16:537:06Full Moon21Sun
22Mon12:438.51:108.17:04-1.47:23-1.16:527:07Full Moon22Mon
23Tue1:328.62:017.97:54-1.48:12-0.96:507:08Waning Gibbous23Tue
24Wed2:228.52:537.68:46-1.29:04-0.66:487:09Waning Gibbous24Wed
25Thu3:158.23:487.39:41-0.99:59-0.26:477:10Waning Gibbous25Thu
26Fri4:107.84:476.910:39-0.510:590.26:457:11Third Quarter26Fri
27Sat5:107.45:496.611:40-0.16:437:12Third Quarter27Sat
28Sun6:137.06:556.412:020.512:430.16:427:13Third Quarter28Sun
29Mon7:186.87:596.31:070.71:460.36:407:14Waning Crescent29Mon
30Tue8:216.78:586.42:100.72:440.36:387:15Waning Crescent30Tue
31Wed9:186.79:496.63:080.73:370.36:377:16Waning Crescent31Wed
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 2:25 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 neap phase. Tonight's moon is 48% 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 minimum.

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 First Quarter (48% illuminated). This places Black Rock Harbor, CT in a neap tide cycle, so tidal ranges are near their weekly minimum 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