Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide (tomorrow) : 8:22 am (0.3 ft)
Next high tide (tomorrow) : in 4h 23m at 2:08 am (7.1 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Oct 2090

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:166.76:396.912:060.412:310.96:506:34First Quarter1Sun
2Mon7:176.67:416.81:050.61:311.06:516:32Waxing Gibbous2Mon
3Tue8:156.68:376.82:020.72:280.96:526:30Waxing Gibbous3Tue
4Wed9:076.89:286.82:550.73:190.86:536:29Waxing Gibbous4Wed
5Thu9:526.910:126.83:420.64:060.76:546:27Waxing Gibbous5Thu
6Fri10:327.010:526.94:250.64:480.56:556:26Full Moon6Fri
7Sat11:097.111:306.95:040.65:270.46:566:24Full Moon7Sat
8Sun11:447.25:410.66:050.36:576:22Full Moon8Sun
9Mon12:066.912:187.36:170.66:410.36:586:21Full Moon9Mon
10Tue12:426.912:547.46:520.77:170.26:596:19Full Moon10Tue
11Wed1:206.91:317.47:280.77:550.27:006:17Waning Gibbous11Wed
12Thu1:596.82:127.48:060.88:370.37:016:16Waning Gibbous12Thu
13Fri2:436.82:577.38:490.89:240.37:036:14Waning Gibbous13Fri
14Sat3:316.73:487.29:390.910:160.47:046:13Third Quarter14Sat
15Sun4:256.74:447.110:370.911:150.47:056:11Third Quarter15Sun
16Mon5:236.85:467.111:400.97:066:10Third Quarter16Mon
17Tue6:256.96:517.212:160.412:440.67:076:08Third Quarter17Tue
18Wed7:277.37:547.41:160.21:470.37:086:07Waning Crescent18Wed
19Thu8:267.78:547.62:15-0.12:47-0.27:096:05Waning Crescent19Thu
20Fri9:228.19:517.93:11-0.33:43-0.67:106:04Waning Crescent20Fri
21Sat10:148.510:448.14:05-0.64:37-1.07:116:02New Moon21Sat
22Sun11:058.711:358.14:56-0.75:28-1.27:136:01New Moon22Sun
23Mon11:548.85:46-0.86:18-1.37:145:59New Moon23Mon
24Tue12:258.112:438.76:35-0.77:07-1.27:155:58New Moon24Tue
25Wed1:157.91:328.57:24-0.57:57-1.07:165:57Waxing Crescent25Wed
26Thu2:057.72:228.18:14-0.28:47-0.67:175:55Waxing Crescent26Thu
27Fri2:567.43:137.79:060.29:39-0.27:185:54Waxing Crescent27Fri
28Sat3:497.14:077.310:010.510:340.17:205:53First Quarter28Sat
29Sun4:446.85:046.910:590.811:310.47:215:51First Quarter29Sun
30Mon5:426.66:036.611:591.07:225:50First Quarter30Mon
31Tue6:406.67:036.412:280.612:581.07:235:49First Quarter31Tue
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 5:15 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 spring phase. Tonight's moon is 91% 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 Waning Gibbous (91% 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