Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide : 9:59 pm (0.2 ft)
Next high tide : in 5h 30m at 3:44 pm (7.6 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 - Jan 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:346.94:596.210:570.311:150.37:184:34Third Quarter1Mon
2Tue5:296.75:576.011:540.47:184:35Third Quarter2Tue
3Wed6:236.66:555.812:100.512:500.47:184:36Waning Crescent3Wed
4Thu7:166.67:495.81:030.61:430.37:184:37Waning Crescent4Thu
5Fri8:056.78:385.91:540.72:320.27:184:38Waning Crescent5Fri
6Sat8:506.79:236.02:420.73:180.17:184:39Waning Crescent6Sat
7Sun9:326.810:046.13:270.74:000.07:184:40New Moon7Sun
8Mon10:126.810:436.24:090.64:40-0.17:174:41New Moon8Mon
9Tue10:506.911:216.34:490.55:18-0.27:174:42New Moon9Tue
10Wed11:287.011:596.55:280.55:55-0.37:174:43New Moon10Wed
11Thu12:087.06:070.46:33-0.47:174:44Waxing Crescent11Thu
12Fri12:396.712:497.06:480.27:12-0.47:164:45Waxing Crescent12Fri
13Sat1:206.81:346.97:310.17:54-0.47:164:46Waxing Crescent13Sat
14Sun2:057.02:226.88:200.18:40-0.37:164:47Waxing Crescent14Sun
15Mon2:537.13:156.79:130.09:32-0.27:154:48First Quarter15Mon
16Tue3:467.24:136.610:11-0.110:29-0.17:154:49First Quarter16Tue
17Wed4:437.35:156.511:13-0.211:29-0.17:144:51First Quarter17Wed
18Thu5:437.46:196.512:15-0.47:144:52First Quarter18Thu
19Fri6:457.67:236.612:31-0.11:17-0.67:134:53Waxing Gibbous19Fri
20Sat7:467.78:236.81:32-0.22:16-0.97:134:54Waxing Gibbous20Sat
21Sun8:447.99:217.12:32-0.43:13-1.17:124:55Waxing Gibbous21Sun
22Mon9:398.010:147.33:29-0.64:06-1.37:114:56Full Moon22Mon
23Tue10:328.111:057.54:24-0.74:57-1.47:114:58Full Moon23Tue
24Wed11:228.011:547.55:15-0.85:45-1.47:104:59Full Moon24Wed
25Thu12:117.86:05-0.76:32-1.27:095:00Waning Gibbous25Thu
26Fri12:427.512:597.56:54-0.67:18-1.07:085:01Waning Gibbous26Fri
27Sat1:297.41:477.27:43-0.48:04-0.67:085:03Waning Gibbous27Sat
28Sun2:157.22:356.88:32-0.28:52-0.37:075:04Waning Gibbous28Sun
29Mon3:037.03:256.49:240.19:410.17:065:05Third Quarter29Mon
30Tue3:526.84:186.110:170.310:330.47:055:06Third Quarter30Tue
31Wed4:446.65:135.811:120.411:270.77:045:08Third Quarter31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8467373)

Common Questions About Black Rock Harbor, CT Tides

Show All
What time does the tide turn (slack tide) in Black Rock Harbor, CT today?

Slack tide in Black Rock Harbor, CT is approximately 6:51 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 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