Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Friday, July 24, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide (tomorrow) : 3:02 am (0.9 ft)
Next high tide : in 3h 26m at 8:30 pm (6.8 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:41 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Apr 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:007.72:307.08:24-0.48:420.25:366:17Waxing Crescent1Sun
2Mon2:497.33:226.69:150.09:350.65:346:18First Quarter2Mon
3Tue3:416.94:166.310:100.310:310.95:336:19First Quarter3Tue
4Wed4:376.65:146.111:060.611:301.15:316:20First Quarter4Wed
5Thu5:366.46:136.112:030.75:296:21First Quarter5Thu
6Fri6:356.37:096.212:281.112:590.85:286:22Waxing Gibbous6Fri
7Sat7:316.38:016.41:241.01:510.75:266:23Waxing Gibbous7Sat
8Sun8:216.48:466.62:150.82:380.65:256:24Waxing Gibbous8Sun
9Mon9:076.69:276.83:020.63:210.55:236:25Waxing Gibbous9Mon
10Tue9:486.710:057.03:450.44:010.45:216:26Full Moon10Tue
11Wed10:276.810:427.24:250.24:390.45:206:27Full Moon11Wed
12Thu11:056.911:197.45:040.05:160.35:186:28Full Moon12Thu
13Fri11:447.011:577.65:42-0.25:530.25:176:29Full Moon13Fri
14Sat12:257.16:21-0.36:320.25:156:31Waning Gibbous14Sat
15Sun12:387.71:097.17:03-0.37:150.25:136:32Waning Gibbous15Sun
16Mon1:247.71:577.17:49-0.38:040.35:126:33Waning Gibbous16Mon
17Tue2:137.62:497.08:41-0.29:000.45:106:34Waning Gibbous17Tue
18Wed3:097.53:477.09:38-0.110:010.45:096:35Third Quarter18Wed
19Thu4:097.44:497.010:39-0.111:070.45:076:36Third Quarter19Thu
20Fri5:147.35:537.211:42-0.15:066:37Third Quarter20Fri
21Sat6:207.36:567.412:130.212:44-0.25:046:38Waning Crescent21Sat
22Sun7:247.47:557.81:16-0.11:43-0.35:036:39Waning Crescent22Sun
23Mon8:247.68:508.02:16-0.42:39-0.45:016:40Waning Crescent23Mon
24Tue9:197.79:418.23:11-0.73:31-0.55:006:41Waning Crescent24Tue
25Wed10:107.710:298.34:03-0.94:21-0.54:596:42New Moon25Wed
26Thu10:597.711:158.34:52-0.95:08-0.44:576:43New Moon26Thu
27Fri11:457.65:39-0.95:54-0.24:566:44New Moon27Fri
28Sat12:008.112:317.46:24-0.76:390.04:546:45Waxing Crescent28Sat
29Sun12:447.82:167.18:09-0.48:240.35:537:47Waxing Crescent29Sun
30Mon2:297.53:026.98:55-0.19:120.65:527:48Waxing Crescent30Mon
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 11:46 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 transitional phase. Tonight's moon is 79% 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 Waxing Gibbous (79% 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