Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide (tomorrow) : 3:34 am (0.6 ft)
Next high tide : in 4h 38m at 9:04 pm (7.0 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 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:347.82:548.48:43-0.29:21-0.66:496:35Waxing Crescent1Sat
2Sun3:297.43:518.09:400.110:19-0.26:506:34First Quarter2Sun
3Mon4:287.14:517.510:420.511:210.26:516:32First Quarter3Mon
4Tue5:316.95:557.211:460.76:526:30First Quarter4Tue
5Wed6:366.77:016.912:230.412:510.96:536:29First Quarter5Wed
6Thu7:396.88:036.81:240.51:530.86:546:27Waxing Gibbous6Thu
7Fri8:366.98:596.82:210.62:500.76:556:25Waxing Gibbous7Fri
8Sat9:257.09:486.83:130.63:410.66:566:24Waxing Gibbous8Sat
9Sun10:087.110:326.83:590.64:260.56:576:22Waxing Gibbous9Sun
10Mon10:477.211:106.84:400.75:060.46:586:20Full Moon10Mon
11Tue11:227.211:476.75:180.75:440.36:596:19Full Moon11Tue
12Wed11:577.25:540.86:200.37:016:17Full Moon12Wed
13Thu12:226.712:317.36:290.86:560.37:026:16Full Moon13Thu
14Fri12:586.71:077.27:040.97:330.47:036:14Waning Gibbous14Fri
15Sat1:366.61:457.27:411.08:120.47:046:13Waning Gibbous15Sat
16Sun2:166.52:277.18:201.18:540.57:056:11Waning Gibbous16Sun
17Mon3:016.43:137.09:051.29:420.67:066:09Waning Gibbous17Mon
18Tue3:506.44:056.89:571.310:350.77:076:08Third Quarter18Tue
19Wed4:446.45:026.810:561.311:320.77:086:06Third Quarter19Wed
20Thu5:426.56:046.711:591.17:096:05Third Quarter20Thu
21Fri6:416.87:076.912:310.61:020.87:116:04Third Quarter21Fri
22Sat7:397.28:077.11:280.42:020.37:126:02Waning Crescent22Sat
23Sun8:357.79:057.32:240.22:59-0.27:136:01Waning Crescent23Sun
24Mon9:288.29:597.63:17-0.13:53-0.67:145:59Waning Crescent24Mon
25Tue10:188.510:517.84:09-0.34:45-1.07:155:58New Moon25Tue
26Wed11:088.811:417.94:59-0.55:35-1.37:165:56New Moon26Wed
27Thu11:588.95:49-0.66:25-1.37:175:55New Moon27Thu
28Fri12:327.912:488.86:40-0.57:15-1.27:195:54Waxing Crescent28Fri
29Sat1:237.81:408.57:31-0.48:07-1.07:205:52Waxing Crescent29Sat
30Sun2:167.62:338.18:24-0.19:00-0.67:215:51Waxing Crescent30Sun
31Mon3:107.33:287.79:200.29:55-0.27:225:50Waxing Crescent31Mon
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 12:19 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