Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 5h 26m at 1:23 pm (1.3 ft)
Next high tide : 7:36 pm (6.8 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:40 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Jan 2076

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:216.96:556.112:070.512:520.17:184:34Waning Crescent1Wed
2Thu7:157.27:526.31:020.41:48-0.27:184:35Waning Crescent2Thu
3Fri8:097.58:476.51:570.22:42-0.67:184:36Waning Crescent3Fri
4Sat9:027.99:406.82:510.03:35-1.07:184:37Waning Crescent4Sat
5Sun9:558.110:327.13:45-0.34:26-1.37:184:38New Moon5Sun
6Mon10:478.211:247.44:39-0.55:17-1.57:184:39New Moon6Mon
7Tue11:398.35:32-0.76:07-1.57:174:40New Moon7Tue
8Wed12:167.512:338.16:25-0.76:58-1.47:174:41Waxing Crescent8Wed
9Thu1:097.61:277.97:20-0.77:49-1.37:174:42Waxing Crescent9Thu
10Fri2:027.62:227.58:16-0.68:43-1.07:174:43Waxing Crescent10Fri
11Sat2:567.53:197.19:15-0.49:37-0.67:174:44First Quarter11Sat
12Sun3:527.44:176.610:14-0.210:34-0.27:164:45First Quarter12Sun
13Mon4:497.25:186.311:15-0.111:310.17:164:46First Quarter13Mon
14Tue5:467.06:206.012:140.07:164:47First Quarter14Tue
15Wed6:446.97:205.912:280.41:120.17:154:48Waxing Gibbous15Wed
16Thu7:386.88:155.91:230.62:060.17:154:49Waxing Gibbous16Thu
17Fri8:286.79:055.92:160.72:570.17:144:51Waxing Gibbous17Fri
18Sat9:146.79:495.93:050.73:430.07:144:52Waxing Gibbous18Sat
19Sun9:566.710:305.93:500.74:240.07:134:53Full Moon19Sun
20Mon10:356.711:076.04:320.75:030.07:134:54Full Moon20Mon
21Tue11:136.711:446.15:110.75:40-0.17:124:55Full Moon21Tue
22Wed11:506.75:500.66:16-0.17:114:56Full Moon22Wed
23Thu12:216.212:286.66:280.66:52-0.17:114:58Waning Gibbous23Thu
24Fri12:586.41:086.67:070.57:290.07:104:59Waning Gibbous24Fri
25Sat1:386.51:506.57:490.58:080.17:095:00Waning Gibbous25Sat
26Sun2:196.62:366.38:350.48:510.27:085:01Waning Gibbous26Sun
27Mon3:046.73:256.29:250.49:390.37:075:03Third Quarter27Mon
28Tue3:536.84:206.010:200.310:320.47:075:04Third Quarter28Tue
29Wed4:476.95:206.011:190.211:300.57:065:05Third Quarter29Wed
30Thu5:457.06:236.012:200.07:055:06Third Quarter30Thu
31Fri6:457.27:256.212:310.41:20-0.37:045:08Waning Crescent31Fri
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 4:29 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 transitional phase. Tonight's moon is 71% 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 shifting between spring and neap.

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 (71% illuminated). This places Black Rock Harbor, CT in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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