Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide (tomorrow) : 12:36 am (0.3 ft)
Next high tide : in 4h 38m at 6:00 pm (7.6 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 5:53 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - May 2095

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:467.610:098.33:39-0.53:59-0.45:497:50Waning Crescent1Sun
2Mon10:407.710:598.54:33-0.84:50-0.55:487:51New Moon2Mon
3Tue11:317.811:488.75:25-1.15:40-0.55:477:52New Moon3Tue
4Wed12:217.86:14-1.26:28-0.45:467:53New Moon4Wed
5Thu12:368.61:107.67:03-1.17:17-0.25:447:54New Moon5Thu
6Fri1:248.42:007.47:51-0.98:060.15:437:55Waxing Crescent6Fri
7Sat2:138.02:507.18:41-0.58:570.45:427:56Waxing Crescent7Sat
8Sun3:047.63:426.89:32-0.19:510.85:417:57Waxing Crescent8Sun
9Mon3:577.24:366.610:260.210:481.05:407:58First Quarter9Mon
10Tue4:536.85:336.411:220.511:481.25:397:59First Quarter10Tue
11Wed5:526.56:316.412:180.85:388:00First Quarter11Wed
12Thu6:526.37:286.412:481.21:140.95:378:01First Quarter12Thu
13Fri7:506.28:206.61:451.12:060.95:368:02Waxing Gibbous13Fri
14Sat8:446.39:066.82:391.02:551.05:358:03Waxing Gibbous14Sat
15Sun9:326.39:496.93:270.83:400.95:348:04Waxing Gibbous15Sun
16Mon10:166.410:287.14:120.64:220.95:338:05Waxing Gibbous16Mon
17Tue10:566.511:057.24:530.45:010.95:328:06Full Moon17Tue
18Wed11:356.511:417.35:320.25:390.95:318:07Full Moon18Wed
19Thu12:136.66:100.16:160.95:308:08Full Moon19Thu
20Fri12:197.412:526.66:480.06:540.95:298:09Full Moon20Fri
21Sat12:587.51:336.77:280.07:350.95:288:10Waning Gibbous21Sat
22Sun1:417.52:186.78:100.08:200.95:288:11Waning Gibbous22Sun
23Mon2:287.53:076.88:570.09:120.85:278:12Waning Gibbous23Mon
24Tue3:207.44:006.99:490.110:110.85:268:13Waning Gibbous24Tue
25Wed4:167.24:587.010:450.111:140.75:268:13Third Quarter25Wed
26Thu5:187.15:577.211:440.15:258:14Third Quarter26Thu
27Fri6:227.16:587.512:190.512:440.15:248:15Third Quarter27Fri
28Sat7:267.17:577.81:220.21:430.15:248:16Waning Crescent28Sat
29Sun8:297.28:538.12:23-0.22:400.05:238:17Waning Crescent29Sun
30Mon9:277.39:478.33:20-0.53:35-0.15:238:18Waning Crescent30Mon
31Tue10:217.410:388.44:15-0.74:28-0.15:228:18Waning Crescent31Tue
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 9:18 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 neap phase. Tonight's moon is 44% 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 minimum.

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 Third Quarter (44% illuminated). This places Black Rock Harbor, CT in a neap tide cycle, so tidal ranges are near their weekly minimum 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