Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide : 12:28 pm (1.1 ft)
Next high tide : in 43m at 6:19 am (6.1 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:39 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Dec 1981

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:546.42:036.77:591.08:300.36:584:25Waxing Crescent1Tue
2Wed2:406.42:526.68:501.09:190.36:594:24Waxing Crescent2Wed
3Thu3:316.53:476.59:460.910:130.47:004:24First Quarter3Thu
4Fri4:256.64:456.410:450.811:080.37:014:24First Quarter4Fri
5Sat5:216.95:466.511:460.57:024:24First Quarter5Sat
6Sun6:187.26:476.612:050.212:440.17:034:24Waxing Gibbous6Sun
7Mon7:137.67:466.91:010.11:41-0.47:044:24Waxing Gibbous7Mon
8Tue8:078.08:417.11:55-0.12:36-0.87:054:24Waxing Gibbous8Tue
9Wed9:008.39:357.42:49-0.43:29-1.27:064:24Waxing Gibbous9Wed
10Thu9:528.510:277.53:42-0.64:21-1.47:074:24Full Moon10Thu
11Fri10:438.611:197.64:34-0.75:12-1.67:084:24Full Moon11Fri
12Sat11:348.55:26-0.76:02-1.57:094:24Full Moon12Sat
13Sun12:117.612:278.36:19-0.66:53-1.47:094:24Waning Gibbous13Sun
14Mon1:047.61:208.07:13-0.57:46-1.17:104:24Waning Gibbous14Mon
15Tue1:577.42:147.68:08-0.28:39-0.87:114:25Waning Gibbous15Tue
16Wed2:527.23:117.19:060.09:34-0.47:114:25Third Quarter16Wed
17Thu3:487.04:096.710:060.210:31-0.17:124:25Third Quarter17Thu
18Fri4:456.95:096.411:060.311:270.27:134:26Third Quarter18Fri
19Sat5:426.86:106.112:050.47:134:26Third Quarter19Sat
20Sun6:386.87:086.012:220.41:020.37:144:26Waning Crescent20Sun
21Mon7:296.88:016.01:150.61:540.37:144:27Waning Crescent21Mon
22Tue8:176.88:496.02:050.72:430.27:154:27Waning Crescent22Tue
23Wed9:006.89:336.02:520.73:280.17:154:28Waning Crescent23Wed
24Thu9:416.810:136.13:350.74:090.07:164:28New Moon24Thu
25Fri10:196.910:516.14:160.74:48-0.17:164:29New Moon25Fri
26Sat10:576.911:296.24:550.75:26-0.17:164:30New Moon26Sat
27Sun11:346.95:340.76:03-0.17:174:30New Moon27Sun
28Mon12:076.312:136.96:120.66:40-0.27:174:31Waxing Crescent28Mon
29Tue12:476.412:546.96:520.67:20-0.27:174:32Waxing Crescent29Tue
30Wed1:286.51:386.87:360.58:02-0.17:174:33Waxing Crescent30Wed
31Thu2:136.62:266.78:240.58:48-0.17:184:33Waxing Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8467373)

Common Questions About Black Rock Harbor, CT Tides

Show All
What time does the tide turn (slack tide) in Black Rock Harbor, CT today?

Slack tide in Black Rock Harbor, CT is approximately 9:23 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 62% 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 First Quarter (62% 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