Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 3h 58m at 7:48 pm (-0.1 ft)
Next high tide (tomorrow) : 1:53 am (7.9 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:34 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Sep 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:177.34:418.010:280.211:110.06:197:25First Quarter1Sat
2Sun5:166.95:417.611:280.56:207:24First Quarter2Sun
3Mon6:206.66:447.312:130.212:310.86:217:22First Quarter3Mon
4Tue7:256.47:477.11:150.41:331.06:227:20Waxing Gibbous4Tue
5Wed8:296.48:477.12:160.52:341.16:237:19Waxing Gibbous5Wed
6Thu9:256.59:417.03:130.53:301.06:247:17Waxing Gibbous6Thu
7Fri10:146.610:287.04:040.54:201.06:257:15Waxing Gibbous7Fri
8Sat10:566.711:097.04:480.55:040.96:267:14Full Moon8Sat
9Sun11:346.811:477.05:280.55:440.86:277:12Full Moon9Sun
10Mon12:096.96:040.56:220.76:287:10Full Moon10Mon
11Tue12:237.012:427.06:390.66:580.66:297:08Full Moon11Tue
12Wed12:596.91:167.17:120.67:340.66:307:07Waning Gibbous12Wed
13Thu1:366.81:527.27:460.78:120.66:317:05Waning Gibbous13Thu
14Fri2:146.72:297.18:220.98:520.76:327:03Waning Gibbous14Fri
15Sat2:556.63:117.19:011.09:370.76:337:02Waning Gibbous15Sat
16Sun3:406.43:577.09:451.210:270.96:347:00Third Quarter16Sun
17Mon4:316.24:506.910:371.411:240.96:356:58Third Quarter17Mon
18Tue5:286.15:496.911:371.46:366:56Third Quarter18Tue
19Wed6:316.16:527.012:260.912:411.36:376:55Third Quarter19Wed
20Thu7:346.47:557.21:270.71:451.16:386:53Waning Crescent20Thu
21Fri8:346.88:557.52:260.42:460.76:396:51Waning Crescent21Fri
22Sat9:307.39:527.83:210.13:430.26:406:50Waning Crescent22Sat
23Sun10:217.810:448.14:13-0.34:37-0.36:416:48New Moon23Sun
24Mon11:108.311:358.25:02-0.65:29-0.76:426:46New Moon24Mon
25Tue11:598.65:50-0.76:19-1.06:436:45New Moon25Tue
26Wed12:258.312:478.86:38-0.87:09-1.16:446:43New Moon26Wed
27Thu1:168.21:358.87:26-0.67:59-1.06:456:41Waxing Crescent27Thu
28Fri2:067.92:268.58:15-0.48:51-0.76:466:39Waxing Crescent28Fri
29Sat2:597.63:188.29:070.09:46-0.36:476:38Waxing Crescent29Sat
30Sun3:547.24:147.710:030.410:440.16:486:36First Quarter30Sun
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 10:50 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 7% 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 (7% 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