Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide (tomorrow) : in 6h 22m at 3:34 am (0.6 ft)
Next high tide (tomorrow) : 9:41 am (6.0 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Oct 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:026.63:187.49:041.09:480.46:506:34Waning Gibbous1Sun
2Mon3:566.54:147.310:001.110:480.56:516:32Third Quarter2Mon
3Tue4:566.45:177.211:061.111:520.56:526:31Third Quarter3Tue
4Wed6:016.56:257.112:151.06:536:29Third Quarter4Wed
5Thu7:076.87:337.212:570.41:240.76:546:27Waning Crescent5Thu
6Fri8:107.28:367.41:580.22:270.36:556:26Waning Crescent6Fri
7Sat9:077.79:357.62:550.03:26-0.26:566:24Waning Crescent7Sat
8Sun10:008.110:287.83:49-0.24:21-0.66:576:22Waning Crescent8Sun
9Mon10:498.411:187.84:39-0.45:12-0.86:586:21New Moon9Mon
10Tue11:368.55:27-0.46:00-0.96:596:19New Moon10Tue
11Wed12:067.812:228.56:14-0.36:47-0.97:006:18New Moon11Wed
12Thu12:537.61:078.37:00-0.17:33-0.67:016:16Waxing Crescent12Thu
13Fri1:407.31:538.07:460.28:20-0.37:026:14Waxing Crescent13Fri
14Sat2:277.02:417.68:330.69:090.17:046:13Waxing Crescent14Sat
15Sun3:166.73:317.29:230.910:010.57:056:11Waxing Crescent15Sun
16Mon4:096.44:256.810:181.210:560.87:066:10First Quarter16Mon
17Tue5:056.25:236.511:181.511:541.07:076:08First Quarter17Tue
18Wed6:046.16:236.312:191.57:086:07First Quarter18Wed
19Thu7:036.17:246.212:511.11:191.47:096:05First Quarter19Thu
20Fri7:586.38:206.31:451.12:141.27:106:04Waxing Gibbous20Fri
21Sat8:466.69:096.32:351.03:041.07:116:02Waxing Gibbous21Sat
22Sun9:296.89:546.53:201.03:500.77:136:01Waxing Gibbous22Sun
23Mon10:097.010:346.64:020.94:310.57:146:00Waxing Gibbous23Mon
24Tue10:457.211:136.64:410.85:110.27:155:58Full Moon24Tue
25Wed11:217.411:516.75:180.85:480.17:165:57Full Moon25Wed
26Thu11:587.55:550.76:270.07:175:55Full Moon26Thu
27Fri12:296.712:377.66:320.77:06-0.17:185:54Full Moon27Fri
28Sat1:116.81:207.67:120.77:49-0.17:195:53Waning Gibbous28Sat
29Sun1:566.72:077.67:570.78:37-0.17:215:51Waning Gibbous29Sun
30Mon2:466.73:007.58:490.89:300.17:225:50Waning Gibbous30Mon
31Tue3:416.73:587.39:490.810:290.27:235:49Third Quarter31Tue
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 6:37 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 84% 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 Waxing Gibbous (84% 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