Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 2h 52m at 2:09 pm (0.6 ft)
Next high tide : 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 - Oct 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:438.011:097.74:33-0.25:02-0.46:506:34New Moon1Sun
2Mon11:298.211:567.75:20-0.25:50-0.66:516:33New Moon2Mon
3Tue12:128.26:05-0.26:35-0.56:526:31New Moon3Tue
4Wed12:407.512:548.16:480.07:18-0.46:536:29Waxing Crescent4Wed
5Thu1:247.31:367.87:300.38:01-0.16:546:28Waxing Crescent5Thu
6Fri2:077.02:197.58:120.68:460.26:556:26Waxing Crescent6Fri
7Sat2:526.63:057.28:571.09:330.56:566:24Waxing Crescent7Sat
8Sun3:396.33:536.89:461.310:250.96:576:23First Quarter8Sun
9Mon4:316.14:476.510:411.511:221.16:586:21First Quarter9Mon
10Tue5:285.95:466.311:411.76:596:19First Quarter10Tue
11Wed6:285.96:476.212:201.212:421.77:006:18First Quarter11Wed
12Thu7:276.07:466.31:171.21:411.57:016:16Waxing Gibbous12Thu
13Fri8:216.38:406.42:101.12:351.37:026:15Waxing Gibbous13Fri
14Sat9:076.69:286.52:581.03:241.07:036:13Waxing Gibbous14Sat
15Sun9:496.910:116.73:420.84:080.67:056:12Waxing Gibbous15Sun
16Mon10:287.210:526.94:220.74:500.37:066:10Full Moon16Mon
17Tue11:057.511:327.05:000.65:290.07:076:08Full Moon17Tue
18Wed11:437.85:380.56:09-0.27:086:07Full Moon18Wed
19Thu12:127.112:227.96:170.46:50-0.47:096:06Full Moon19Thu
20Fri12:547.11:068.06:570.47:34-0.47:106:04Waning Gibbous20Fri
21Sat1:407.11:538.07:420.48:22-0.37:116:03Waning Gibbous21Sat
22Sun2:307.02:457.88:330.59:16-0.27:126:01Waning Gibbous22Sun
23Mon3:256.93:437.69:310.710:150.07:146:00Third Quarter23Mon
24Tue4:256.84:467.310:370.811:190.27:155:58Third Quarter24Tue
25Wed5:306.85:547.111:460.87:165:57Third Quarter25Wed
26Thu6:376.97:037.012:230.212:550.67:175:56Third Quarter26Thu
27Fri7:417.28:097.11:260.22:000.37:185:54Waning Crescent27Fri
28Sat8:407.59:087.12:250.13:000.07:195:53Waning Crescent28Sat
29Sun9:327.810:027.23:190.13:54-0.37:205:52Waning Crescent29Sun
30Mon10:207.910:517.24:100.04:44-0.57:225:50New Moon30Mon
31Tue11:057.911:367.14:560.15:30-0.57:235:49New Moon31Tue
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 5:17 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