Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 3h 07m at 10:08 pm (0.8 ft)
Next high tide (tomorrow) : 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 - Mar 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:337.311:007.14:26-0.24:52-0.56:275:43Full Moon1Mon
2Tue11:167.211:407.15:11-0.25:33-0.46:255:44Full Moon2Tue
3Wed11:577.15:53-0.26:12-0.36:245:45Full Moon3Wed
4Thu12:187.112:366.96:33-0.16:50-0.16:225:46Waning Gibbous4Thu
5Fri12:567.01:166.77:140.07:290.16:215:47Waning Gibbous5Fri
6Sat1:357.01:576.57:550.18:100.36:195:48Waning Gibbous6Sat
7Sun2:166.82:416.38:390.38:530.66:175:50Waning Gibbous7Sun
8Mon3:016.73:296.09:280.59:420.86:165:51Third Quarter8Mon
9Tue3:496.54:215.810:200.610:351.06:145:52Third Quarter9Tue
10Wed4:436.45:185.711:160.711:321.16:125:53Third Quarter10Wed
11Thu5:406.36:175.712:130.76:115:54Third Quarter11Thu
12Fri6:386.47:155.912:301.11:090.66:095:55Waning Crescent12Fri
13Sat7:346.68:086.21:260.92:020.46:085:56Waning Crescent13Sat
14Sun8:266.88:566.62:190.62:510.16:065:57Waning Crescent14Sun
15Mon9:147.19:427.13:090.33:37-0.26:045:58Waning Crescent15Mon
16Tue10:017.410:267.53:57-0.24:21-0.56:036:00New Moon16Tue
17Wed10:477.711:117.94:43-0.65:05-0.76:016:01New Moon17Wed
18Thu11:347.811:568.25:29-0.95:49-0.95:596:02New Moon18Thu
19Fri12:227.96:17-1.16:35-0.95:586:03Waxing Crescent19Fri
20Sat12:448.31:127.87:06-1.27:24-0.85:566:04Waxing Crescent20Sat
21Sun1:348.32:057.67:58-1.18:16-0.65:546:05Waxing Crescent21Sun
22Mon2:278.13:017.38:54-0.89:14-0.35:536:06Waxing Crescent22Mon
23Tue3:257.94:017.09:54-0.610:160.05:516:07First Quarter23Tue
24Wed4:267.55:066.810:57-0.311:210.25:496:08First Quarter24Wed
25Thu5:327.36:126.712:01-0.15:486:09First Quarter25Thu
26Fri6:387.17:176.712:260.31:04-0.15:466:10Waxing Gibbous26Fri
27Sat7:417.18:166.91:300.32:03-0.15:446:12Waxing Gibbous27Sat
28Sun8:397.19:087.02:280.22:56-0.15:426:13Waxing Gibbous28Sun
29Mon9:297.19:537.13:210.13:44-0.15:416:14Waxing Gibbous29Mon
30Tue10:147.010:347.24:080.04:270.05:396:15Full Moon30Tue
31Wed10:547.011:117.24:500.05:060.15:376:16Full 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 1:08 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