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 1h 47m 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 - Sep 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:458.45:36-0.86:02-0.76:197:26Full Moon1Mon
2Tue12:088.212:328.46:24-0.76:51-0.86:207:24Full Moon2Tue
3Wed12:568.11:198.47:10-0.67:39-0.66:217:23Waning Gibbous3Wed
4Thu1:447.82:058.27:56-0.38:26-0.46:227:21Waning Gibbous4Thu
5Fri2:327.52:527.98:430.09:150.06:237:19Waning Gibbous5Fri
6Sat3:207.13:417.59:310.410:060.36:247:18Waning Gibbous6Sat
7Sun4:116.74:327.210:230.811:010.66:257:16Third Quarter7Sun
8Mon5:056.45:266.911:181.111:570.96:267:14Third Quarter8Mon
9Tue6:026.26:246.712:161.36:277:12Third Quarter9Tue
10Wed7:026.17:236.612:551.01:141.46:287:11Third Quarter10Wed
11Thu8:006.28:206.61:511.02:101.36:297:09Waning Crescent11Thu
12Fri8:526.49:106.72:430.93:031.26:307:07Waning Crescent12Fri
13Sat9:396.69:566.83:310.83:511.06:317:06Waning Crescent13Sat
14Sun10:206.810:387.04:140.74:340.76:327:04Waning Crescent14Sun
15Mon10:587.111:177.14:540.65:150.56:337:02New Moon15Mon
16Tue11:357.311:557.25:320.55:540.36:347:01New Moon16Tue
17Wed12:117.56:080.46:320.16:356:59New Moon17Wed
18Thu12:337.212:497.76:450.37:110.06:366:57New Moon18Thu
19Fri1:147.31:307.87:230.37:53-0.16:376:55Waxing Crescent19Fri
20Sat1:577.22:157.98:050.38:39-0.16:386:54Waxing Crescent20Sat
21Sun2:457.23:047.88:520.49:310.06:396:52Waxing Crescent21Sun
22Mon3:377.13:587.79:460.510:280.16:406:50First Quarter22Mon
23Tue4:357.04:597.610:480.611:310.26:416:49First Quarter23Tue
24Wed5:386.96:047.511:540.66:426:47First Quarter24Wed
25Thu6:447.07:117.512:350.21:020.56:436:45First Quarter25Thu
26Fri7:497.38:167.61:380.12:060.26:446:43Waxing Gibbous26Fri
27Sat8:497.69:167.72:38-0.13:07-0.16:456:42Waxing Gibbous27Sat
28Sun9:458.010:117.93:34-0.34:03-0.46:466:40Waxing Gibbous28Sun
29Mon10:358.211:027.94:26-0.44:55-0.66:476:38Full Moon29Mon
30Tue11:238.311:507.85:15-0.45:44-0.76:486:37Full Moon30Tue
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