Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide (tomorrow) : 3:00 am (-0.2 ft)
Next high tide : in 1h 56m at 8:25 pm (7.9 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Jan 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:148.111:517.55:07-0.65:41-1.47:184:34Full Moon1Tue
2Wed12:078.06:00-0.76:30-1.37:184:35Waning Gibbous2Wed
3Thu12:417.612:587.76:53-0.67:19-1.17:184:36Waning Gibbous3Thu
4Fri1:327.61:507.37:45-0.58:09-0.87:184:37Waning Gibbous4Fri
5Sat2:227.42:426.98:39-0.38:59-0.47:184:38Waning Gibbous5Sat
6Sun3:137.33:366.59:34-0.19:510.07:184:39Third Quarter6Sun
7Mon4:057.04:326.110:300.110:440.37:184:40Third Quarter7Mon
8Tue4:586.85:295.811:270.311:390.67:184:41Third Quarter8Tue
9Wed5:536.66:285.612:240.47:174:42Third Quarter9Wed
10Thu6:486.57:265.512:340.81:190.47:174:43Waning Crescent10Thu
11Fri7:416.58:195.51:281.02:120.47:174:44Waning Crescent11Fri
12Sat8:306.59:075.62:191.03:000.37:174:45Waning Crescent12Sat
13Sun9:156.69:505.83:070.93:450.27:164:46Waning Crescent13Sun
14Mon9:566.610:295.93:520.94:250.17:164:47New Moon14Mon
15Tue10:356.711:076.14:330.85:030.07:164:48New Moon15Tue
16Wed11:136.711:446.35:130.65:39-0.17:154:49New Moon16Wed
17Thu11:526.85:510.56:15-0.27:154:50New Moon17Thu
18Fri12:216.612:316.86:310.36:51-0.27:144:51Waxing Crescent18Fri
19Sat1:006.81:136.77:120.27:29-0.27:144:53Waxing Crescent19Sat
20Sun1:417.01:586.67:570.18:11-0.17:134:54Waxing Crescent20Sun
21Mon2:257.12:486.58:460.08:580.07:124:55Waxing Crescent21Mon
22Tue3:147.23:426.39:410.09:520.17:124:56First Quarter22Tue
23Wed4:087.24:426.110:40-0.110:510.37:114:57First Quarter23Wed
24Thu5:087.25:466.111:43-0.111:550.37:104:59First Quarter24Thu
25Fri6:117.36:526.112:47-0.37:105:00Waxing Gibbous25Fri
26Sat7:157.47:576.41:000.21:49-0.57:095:01Waxing Gibbous26Sat
27Sun8:177.68:566.72:030.02:48-0.87:085:02Waxing Gibbous27Sun
28Mon9:157.79:527.03:04-0.23:43-1.07:075:04Full Moon28Mon
29Tue10:097.810:437.34:01-0.54:35-1.27:065:05Full Moon29Tue
30Wed11:017.811:327.54:54-0.75:23-1.27:055:06Full Moon30Wed
31Thu11:507.75:45-0.86:09-1.27:045:07Full Moon31Thu
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 11:42 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 spring phase. Tonight's moon is 20% 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 Waning Crescent (20% 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