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 3h 31m 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 - Sep 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:598.02:228.78:11-0.68:46-0.86:197:26Waxing Crescent1Thu
2Fri2:527.83:168.59:03-0.39:42-0.56:207:24Waxing Crescent2Fri
3Sat3:487.54:128.210:000.010:42-0.26:217:23First Quarter3Sat
4Sun4:487.15:137.811:010.311:440.16:227:21First Quarter4Sun
5Mon5:526.86:187.512:050.66:237:19First Quarter5Mon
6Tue6:586.77:247.312:490.31:100.86:247:18Waxing Gibbous6Tue
7Wed8:036.78:267.21:510.42:130.86:257:16Waxing Gibbous7Wed
8Thu9:036.89:237.22:500.43:120.76:267:14Waxing Gibbous8Thu
9Fri9:546.910:137.23:420.44:040.66:277:13Waxing Gibbous9Fri
10Sat10:387.110:567.14:290.44:500.56:287:11Full Moon10Sat
11Sun11:187.111:367.15:110.45:320.56:297:09Full Moon11Sun
12Mon11:547.25:490.56:100.46:307:08Full Moon12Mon
13Tue12:137.012:287.26:250.56:470.46:317:06Full Moon13Tue
14Wed12:496.91:037.36:590.67:240.46:327:04Waning Gibbous14Wed
15Thu1:256.81:397.27:350.88:010.56:337:03Waning Gibbous15Thu
16Fri2:036.72:177.28:110.98:410.66:347:01Waning Gibbous16Fri
17Sat2:446.52:597.18:511.19:260.86:356:59Waning Gibbous17Sat
18Sun3:296.43:456.99:361.210:150.96:366:57Third Quarter18Sun
19Mon4:196.24:376.810:271.411:101.06:376:56Third Quarter19Mon
20Tue5:146.15:346.711:261.46:386:54Third Quarter20Tue
21Wed6:136.26:356.812:091.012:281.46:396:52Third Quarter21Wed
22Thu7:146.47:366.91:070.81:291.16:406:51Waning Crescent22Thu
23Fri8:116.88:357.22:030.62:270.76:416:49Waning Crescent23Fri
24Sat9:057.39:297.52:560.33:220.26:426:47Waning Crescent24Sat
25Sun9:557.810:217.83:470.04:15-0.36:436:45Waning Crescent25Sun
26Mon10:438.311:118.14:36-0.35:05-0.76:446:44New Moon26Mon
27Tue11:318.75:23-0.65:54-1.16:456:42New Moon27Tue
28Wed12:008.212:198.96:11-0.76:44-1.26:466:40New Moon28Wed
29Thu12:508.21:098.97:00-0.77:34-1.16:476:39Waxing Crescent29Thu
30Fri1:418.02:008.77:50-0.58:26-0.96:486:37Waxing Crescent30Fri
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