Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 1h 07m at 9:59 pm (0.2 ft)
Next high tide (tomorrow) : 4:03 am (7.3 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:20 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Oct 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:448.05:37-0.36:03-0.46:496:35New Moon1Mon
2Tue12:087.712:278.06:20-0.26:46-0.46:506:33New Moon2Tue
3Wed12:517.51:087.87:020.07:29-0.26:516:32Waxing Crescent3Wed
4Thu1:337.31:487.67:430.38:110.06:526:30Waxing Crescent4Thu
5Fri2:167.02:307.48:250.68:540.36:536:28Waxing Crescent5Fri
6Sat2:596.83:157.19:100.99:410.56:546:27Waxing Crescent6Sat
7Sun3:466.54:036.99:581.110:320.86:556:25First Quarter7Sun
8Mon4:376.34:556.610:511.311:260.96:566:23First Quarter8Mon
9Tue5:326.25:526.511:481.46:586:22First Quarter9Tue
10Wed6:296.26:506.412:231.012:471.46:596:20First Quarter10Wed
11Thu7:266.37:476.51:181.01:431.37:006:19Waxing Gibbous11Thu
12Fri8:196.58:416.72:110.92:361.07:016:17Waxing Gibbous12Fri
13Sat9:086.89:296.93:000.73:250.77:026:15Waxing Gibbous13Sat
14Sun9:527.210:147.13:450.54:110.47:036:14Waxing Gibbous14Sun
15Mon10:337.510:577.34:280.34:540.07:046:12Full Moon15Mon
16Tue11:147.911:407.55:100.15:37-0.37:056:11Full Moon16Tue
17Wed11:568.15:510.06:20-0.67:066:09Full Moon17Wed
18Thu12:247.612:408.36:34-0.27:05-0.87:076:08Full Moon18Thu
19Fri1:107.71:278.47:19-0.27:52-0.87:086:06Waning Gibbous19Fri
20Sat1:597.72:178.38:08-0.18:43-0.77:106:05Waning Gibbous20Sat
21Sun2:527.63:118.19:020.09:39-0.57:116:03Waning Gibbous21Sun
22Mon3:487.44:107.910:010.210:39-0.37:126:02Third Quarter22Mon
23Tue4:497.35:137.611:060.311:42-0.27:136:00Third Quarter23Tue
24Wed5:547.36:207.412:120.37:145:59Third Quarter24Wed
25Thu6:597.37:267.312:46-0.11:180.27:155:58Waning Crescent25Thu
26Fri8:027.58:307.31:47-0.12:200.17:165:56Waning Crescent26Fri
27Sat8:597.69:277.32:45-0.13:18-0.17:185:55Waning Crescent27Sat
28Sun9:517.810:187.33:39-0.14:10-0.37:195:54Waning Crescent28Sun
29Mon10:387.811:057.34:280.04:58-0.47:205:52New Moon29Mon
30Tue11:207.811:487.25:130.15:42-0.47:215:51New Moon30Tue
31Wed12:007.75:550.26:23-0.37:225:50New Moon31Wed
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 1:01 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 transitional phase. Tonight's moon is 27% 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 Waxing Crescent (27% 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