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 4h 41m 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 - May 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:576.411:067.14:530.45:020.95:507:49New Moon1Sun
2Mon11:356.511:427.25:320.35:400.95:497:50New Moon2Mon
3Tue12:126.56:100.26:160.95:477:51New Moon3Tue
4Wed12:187.312:496.66:470.16:530.95:467:52New Moon4Wed
5Thu12:567.31:296.67:250.17:320.85:457:53Waxing Crescent5Thu
6Fri1:377.32:126.78:050.18:150.85:447:54Waxing Crescent6Fri
7Sat2:227.32:586.78:490.19:040.85:437:55Waxing Crescent7Sat
8Sun3:117.23:496.89:380.29:590.85:417:56Waxing Crescent8Sun
9Mon4:057.14:447.010:320.211:000.75:407:57First Quarter9Mon
10Tue5:047.05:427.211:290.25:397:58First Quarter10Tue
11Wed6:077.06:417.412:030.512:280.25:387:59First Quarter11Wed
12Thu7:117.07:417.71:060.21:270.15:378:00Waxing Gibbous12Thu
13Fri8:137.18:388.12:07-0.12:250.05:368:01Waxing Gibbous13Fri
14Sat9:127.39:338.33:05-0.53:21-0.15:358:02Waxing Gibbous14Sat
15Sun10:087.410:268.54:01-0.84:15-0.25:348:03Waxing Gibbous15Sun
16Mon11:017.511:178.64:54-1.05:07-0.25:338:04Full Moon16Mon
17Tue11:527.65:45-1.05:58-0.25:328:05Full Moon17Tue
18Wed12:068.512:427.56:35-1.06:49-0.15:318:06Full Moon18Wed
19Thu12:568.31:327.47:23-0.87:390.15:308:07Waning Gibbous19Thu
20Fri1:458.02:217.38:12-0.58:290.45:308:08Waning Gibbous20Fri
21Sat2:357.63:127.19:01-0.29:220.65:298:09Waning Gibbous21Sat
22Sun3:267.24:036.99:510.110:170.85:288:10Waning Gibbous22Sun
23Mon4:196.84:556.810:430.411:131.05:278:11Third Quarter23Mon
24Tue5:146.55:486.711:360.75:278:12Third Quarter24Tue
25Wed6:116.36:416.712:101.012:290.95:268:13Third Quarter25Wed
26Thu7:086.17:336.81:061.01:211.05:258:14Third Quarter26Thu
27Fri8:036.18:236.91:590.92:111.15:258:14Waning Crescent27Fri
28Sat8:546.19:097.02:500.72:591.15:248:15Waning Crescent28Sat
29Sun9:416.29:527.13:370.63:451.15:238:16Waning Crescent29Sun
30Mon10:256.310:337.24:210.54:281.15:238:17Waning Crescent30Mon
31Tue11:066.411:127.35:030.35:091.15:228:18New Moon31Tue
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