Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 2h 46m at 12:47 pm (0.8 ft)
Next high tide : 7:03 pm (7.7 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:54 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Mar 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:007.31:226.87:18-0.37:330.06:255:44Waning Gibbous1Fri
2Sat1:417.12:056.58:02-0.18:140.36:235:45Waning Gibbous2Sat
3Sun2:236.92:496.28:470.28:590.66:225:46Waning Gibbous3Sun
4Mon3:086.73:385.99:360.59:481.06:205:47Third Quarter4Mon
5Tue3:576.54:315.610:300.710:421.26:185:49Third Quarter5Tue
6Wed4:516.25:305.411:270.911:401.46:175:50Third Quarter6Wed
7Thu5:506.16:315.412:260.96:155:51Third Quarter7Thu
8Fri6:496.17:305.512:391.41:220.86:145:52Waning Crescent8Fri
9Sat7:456.38:225.81:371.32:150.76:125:53Waning Crescent9Sat
10Sun9:366.510:086.13:291.04:020.47:106:54Waning Crescent10Sun
11Mon10:226.710:496.54:170.74:440.27:096:55Waning Crescent11Mon
12Tue11:046.911:296.95:020.45:240.07:076:56New Moon12Tue
13Wed11:467.15:440.06:03-0.27:056:58New Moon13Wed
14Thu12:087.312:287.26:25-0.36:41-0.37:046:59New Moon14Thu
15Fri12:487.61:117.37:08-0.67:22-0.47:027:00New Moon15Fri
16Sat1:307.91:577.37:52-0.78:05-0.37:007:01Waxing Crescent16Sat
17Sun2:168.02:467.18:40-0.78:53-0.26:597:02Waxing Crescent17Sun
18Mon3:057.93:396.99:33-0.69:470.16:577:03Waxing Crescent18Mon
19Tue4:007.74:376.610:31-0.310:470.36:557:04First Quarter19Tue
20Wed5:007.45:426.411:35-0.111:540.56:547:05First Quarter20Wed
21Thu6:067.26:506.412:410.06:527:06First Quarter21Thu
22Fri7:167.17:596.51:030.61:470.06:507:07Waxing Gibbous22Fri
23Sat8:237.19:036.72:110.52:49-0.16:497:08Waxing Gibbous23Sat
24Sun9:257.19:587.03:140.33:46-0.26:477:10Waxing Gibbous24Sun
25Mon10:207.210:477.24:110.04:37-0.26:457:11Waxing Gibbous25Mon
26Tue11:097.211:317.45:02-0.25:23-0.26:447:12Full Moon26Tue
27Wed11:537.25:48-0.36:05-0.16:427:13Full Moon27Wed
28Thu12:117.412:347.06:30-0.36:440.06:407:14Full Moon28Thu
29Fri12:497.41:146.97:09-0.27:210.26:397:15Full Moon29Fri
30Sat1:277.31:526.77:48-0.17:590.56:377:16Waning Gibbous30Sat
31Sun2:047.22:326.58:280.18:380.76:357:17Waning Gibbous31Sun
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 3:55 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 transitional phase. Tonight's moon is 32% 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 shifting between spring and neap.

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 (32% illuminated). This places Black Rock Harbor, CT in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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