Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide (tomorrow) : 10:22 am (0.5 ft)
Next high tide (tomorrow) : in 5h 42m at 4:08 am (6.7 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:26 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Dec 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:458.39:197.52:34-0.43:12-1.16:584:25Waxing Gibbous1Tue
2Wed9:378.610:117.63:27-0.64:05-1.46:594:24Full Moon2Wed
3Thu10:288.611:037.74:20-0.74:56-1.57:004:24Full Moon3Thu
4Fri11:198.511:547.75:11-0.75:46-1.57:014:24Full Moon4Fri
5Sat12:098.36:02-0.66:35-1.37:024:24Waning Gibbous5Sat
6Sun12:457.61:008.06:53-0.47:25-1.07:034:24Waning Gibbous6Sun
7Mon1:367.41:527.67:46-0.18:16-0.77:044:24Waning Gibbous7Mon
8Tue2:287.22:457.18:410.19:09-0.37:054:24Waning Gibbous8Tue
9Wed3:226.93:406.79:380.410:030.07:064:24Third Quarter9Wed
10Thu4:166.84:376.410:360.510:580.37:074:24Third Quarter10Thu
11Fri5:126.75:366.111:340.611:530.57:084:24Third Quarter11Fri
12Sat6:076.66:346.012:300.67:084:24Third Quarter12Sat
13Sun6:596.77:296.012:460.61:240.57:094:24Waning Crescent13Sun
14Mon7:486.78:196.01:360.72:130.37:104:24Waning Crescent14Mon
15Tue8:336.89:046.12:240.73:000.27:114:25Waning Crescent15Tue
16Wed9:156.99:466.13:090.73:420.17:114:25Waning Crescent16Wed
17Thu9:547.010:266.23:510.74:230.07:124:25New Moon17Thu
18Fri10:337.011:046.34:310.65:01-0.17:134:25New Moon18Fri
19Sat11:117.111:436.45:090.65:39-0.27:134:26New Moon19Sat
20Sun11:507.15:480.56:18-0.37:144:26New Moon20Sun
21Mon12:236.612:317.16:290.46:58-0.47:144:27Waxing Crescent21Mon
22Tue1:066.71:167.17:130.47:41-0.47:154:27Waxing Crescent22Tue
23Wed1:516.92:057.08:010.38:28-0.37:154:28Waxing Crescent23Wed
24Thu2:407.02:586.98:550.29:20-0.37:164:28First Quarter24Thu
25Fri3:337.13:566.89:540.110:16-0.27:164:29First Quarter25Fri
26Sat4:307.34:576.710:56-0.111:15-0.27:164:30First Quarter26Sat
27Sun5:297.46:016.711:58-0.37:174:30First Quarter27Sun
28Mon6:297.67:046.712:15-0.212:59-0.67:174:31Waxing Gibbous28Mon
29Tue7:297.88:056.91:15-0.31:58-0.87:174:32Waxing Gibbous29Tue
30Wed8:268.09:027.12:13-0.42:55-1.17:174:32Waxing Gibbous30Wed
31Thu9:208.29:577.23:09-0.53:49-1.37:184:33Full Moon31Thu
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 7:15 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 72% 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 Waning Gibbous (72% 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