Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide (tomorrow) : 6:33 am (0.4 ft)
Next high tide (tomorrow) : in 5h 54m at 12:07 am (7.1 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 5:45 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Aug 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:037.42:297.68:19-0.18:460.25:498:09Waning Gibbous1Sun
2Mon2:497.13:147.49:030.29:340.45:508:08Waning Gibbous2Mon
3Tue3:366.83:597.39:480.610:230.65:518:07Third Quarter3Tue
4Wed4:246.44:477.010:360.911:160.85:528:06Third Quarter4Wed
5Thu5:166.15:386.811:271.25:538:04Third Quarter5Thu
6Fri6:115.96:336.712:111.012:211.45:548:03Third Quarter6Fri
7Sat7:105.87:296.61:071.11:171.65:558:02Waning Crescent7Sat
8Sun8:085.88:246.72:031.12:131.65:568:01Waning Crescent8Sun
9Mon9:035.99:156.82:571.03:061.55:577:59Waning Crescent9Mon
10Tue9:526.110:026.93:460.83:561.35:587:58Waning Crescent10Tue
11Wed10:356.410:457.14:300.64:411.15:597:57New Moon11Wed
12Thu11:166.711:267.25:110.45:240.86:007:55New Moon12Thu
13Fri11:547.05:500.26:050.66:017:54New Moon13Fri
14Sat12:077.412:337.46:270.16:470.36:027:53New Moon14Sat
15Sun12:487.41:137.77:050.07:290.16:037:51Waxing Crescent15Sun
16Mon1:327.51:557.97:45-0.18:14-0.16:047:50Waxing Crescent16Mon
17Tue2:187.42:418.08:280.09:03-0.16:057:48Waxing Crescent17Tue
18Wed3:077.23:308.09:160.19:570.06:067:47Waxing Crescent18Wed
19Thu4:017.04:257.910:100.310:560.16:077:45First Quarter19Thu
20Fri5:006.85:257.811:100.56:087:44First Quarter20Fri
21Sat6:046.66:307.612:000.212:150.76:097:43First Quarter21Sat
22Sun7:126.67:377.61:060.21:220.76:107:41Waxing Gibbous22Sun
23Mon8:196.78:427.62:100.22:280.66:117:39Waxing Gibbous23Mon
24Tue9:217.09:427.73:110.03:300.46:127:38Waxing Gibbous24Tue
25Wed10:177.310:367.74:06-0.14:270.26:137:36Waxing Gibbous25Wed
26Thu11:067.511:257.74:57-0.25:180.16:147:35Full Moon26Thu
27Fri11:527.65:43-0.26:060.06:157:33Full Moon27Fri
28Sat12:117.612:347.76:26-0.16:500.06:167:32Full Moon28Sat
29Sun12:547.41:157.77:070.07:320.16:177:30Waning Gibbous29Sun
30Mon1:367.21:547.67:470.38:140.26:187:28Waning Gibbous30Mon
31Tue2:177.02:357.48:270.58:570.46:187:27Waning Gibbous31Tue
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 3:20 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 100% 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 Full Moon (100% 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