Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide : 8:04 pm (0.0 ft)
Next high tide : in 32m at 1:56 pm (7.6 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waxing Crescent (9% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Oct 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:088.36:01-0.36:30-0.76:496:35Full Moon1Wed
2Thu12:357.712:528.26:45-0.27:14-0.56:506:33Waning Gibbous2Thu
3Fri1:207.51:357.97:290.17:59-0.36:516:32Waning Gibbous3Fri
4Sat2:047.22:197.68:130.48:440.16:526:30Waning Gibbous4Sat
5Sun2:506.93:057.38:590.79:310.46:536:28Waning Gibbous5Sun
6Mon3:376.63:547.09:481.010:220.76:546:27Third Quarter6Mon
7Tue4:286.44:466.710:421.311:170.96:556:25Third Quarter7Tue
8Wed5:236.25:436.511:391.46:566:23Third Quarter8Wed
9Thu6:216.26:426.412:131.012:381.46:576:22Third Quarter9Thu
10Fri7:186.37:406.41:081.11:351.36:596:20Waning Crescent10Fri
11Sat8:116.58:336.52:011.02:291.17:006:19Waning Crescent11Sat
12Sun8:596.89:226.62:500.93:180.87:016:17Waning Crescent12Sun
13Mon9:427.010:066.83:350.84:030.57:026:15Waning Crescent13Mon
14Tue10:227.310:477.04:170.64:450.27:036:14New Moon14Tue
15Wed11:017.611:287.14:570.55:260.07:046:12New Moon15Wed
16Thu11:417.85:370.46:06-0.37:056:11New Moon16Thu
17Fri12:097.212:228.06:170.26:48-0.47:066:09New Moon17Fri
18Sat12:527.31:068.16:590.27:32-0.57:076:08Waxing Crescent18Sat
19Sun1:387.41:538.17:440.28:20-0.57:086:06Waxing Crescent19Sun
20Mon2:287.32:458.08:350.29:13-0.47:106:05Waxing Crescent20Mon
21Tue3:227.33:427.89:320.310:10-0.27:116:03First Quarter21Tue
22Wed4:207.24:437.510:350.411:12-0.17:126:02First Quarter22Wed
23Thu5:237.25:487.311:420.47:136:00First Quarter23Thu
24Fri6:277.36:557.212:150.012:480.37:145:59First Quarter24Fri
25Sat7:317.58:007.21:170.01:520.07:155:58Waxing Gibbous25Sat
26Sun8:307.79:007.32:160.02:52-0.27:165:56Waxing Gibbous26Sun
27Mon9:257.99:557.43:12-0.13:47-0.47:185:55Waxing Gibbous27Mon
28Tue10:158.110:457.44:04-0.14:38-0.67:195:54Full Moon28Tue
29Wed11:018.111:317.34:52-0.15:25-0.67:205:52Full Moon29Wed
30Thu11:448.05:380.16:09-0.57:215:51Full Moon30Thu
31Fri12:157.212:267.86:210.26:51-0.47:225:50Full Moon31Fri
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 5:00 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 9% 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 Waxing Crescent (9% 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