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 4h 31m 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 - Mar 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:007.63:316.89:27-0.49:43-0.16:275:43First Quarter1Mon
2Tue3:577.54:336.610:28-0.310:460.16:255:44First Quarter2Tue
3Wed4:597.45:396.411:32-0.311:510.26:245:45First Quarter3Wed
4Thu6:057.36:466.512:37-0.36:225:46Waxing Gibbous4Thu
5Fri7:117.37:516.712:570.21:40-0.46:205:47Waxing Gibbous5Fri
6Sat8:137.48:506.92:010.12:39-0.56:195:49Waxing Gibbous6Sat
7Sun9:117.59:437.23:00-0.13:34-0.66:175:50Waxing Gibbous7Sun
8Mon10:037.510:327.33:55-0.34:23-0.76:165:51Full Moon8Mon
9Tue10:517.511:167.44:44-0.45:08-0.76:145:52Full Moon9Tue
10Wed11:357.411:587.45:30-0.55:51-0.56:125:53Full Moon10Wed
11Thu12:187.26:14-0.46:31-0.36:115:54Waning Gibbous11Thu
12Fri12:387.41:007.06:56-0.37:12-0.16:095:55Waning Gibbous12Fri
13Sat1:197.21:426.77:38-0.17:530.26:075:56Waning Gibbous13Sat
14Sun2:007.12:256.48:220.18:360.56:065:58Waning Gibbous14Sun
15Mon2:436.83:126.29:090.49:240.86:045:59Third Quarter15Mon
16Tue3:316.64:035.910:010.610:161.16:026:00Third Quarter16Tue
17Wed4:236.44:595.710:560.811:121.26:016:01Third Quarter17Wed
18Thu5:196.35:585.611:540.85:596:02Third Quarter18Thu
19Fri6:186.26:575.712:111.312:500.85:576:03Third Quarter19Fri
20Sat7:166.37:516.01:081.21:440.75:566:04Waning Crescent20Sat
21Sun8:086.58:406.32:021.02:330.55:546:05Waning Crescent21Sun
22Mon8:566.79:246.72:520.73:180.25:526:06Waning Crescent22Mon
23Tue9:417.010:057.03:380.34:000.05:516:07New Moon23Tue
24Wed10:247.210:467.44:210.04:41-0.25:496:08New Moon24Wed
25Thu11:077.411:277.85:04-0.45:21-0.45:476:09New Moon25Thu
26Fri11:517.55:47-0.76:03-0.55:466:11New Moon26Fri
27Sat12:108.012:377.56:32-0.86:47-0.55:446:12Waxing Crescent27Sat
28Sun12:568.11:267.47:20-0.97:35-0.45:426:13Waxing Crescent28Sun
29Mon1:468.12:197.38:12-0.88:28-0.25:416:14Waxing Crescent29Mon
30Tue2:407.93:167.09:09-0.69:270.15:396:15First Quarter30Tue
31Wed3:387.74:186.810:10-0.310:320.35:376:16First Quarter31Wed
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 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