Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide (tomorrow) : 2:00 am (0.1 ft)
Next high tide : in 2h 24m at 7:25 pm (7.7 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Aug 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:086.66:040.36:140.95:498:09Full Moon1Mon
2Tue12:167.212:466.96:410.26:550.75:508:07Full Moon2Tue
3Wed12:567.31:257.27:180.17:370.55:518:06Waning Gibbous3Wed
4Thu1:397.32:077.57:570.18:210.35:528:05Waning Gibbous4Thu
5Fri2:247.32:517.78:380.19:100.25:538:04Waning Gibbous5Fri
6Sat3:137.23:387.89:240.210:020.25:548:03Waning Gibbous6Sat
7Sun4:057.04:317.810:150.311:000.25:558:01Third Quarter7Sun
8Mon5:026.85:287.811:120.55:568:00Third Quarter8Mon
9Tue6:046.66:297.712:020.212:140.65:577:59Third Quarter9Tue
10Wed7:106.57:347.71:050.21:180.75:587:58Waning Crescent10Wed
11Thu8:176.68:387.82:090.12:230.75:597:56Waning Crescent11Thu
12Fri9:206.89:397.93:11-0.13:260.56:007:55Waning Crescent12Fri
13Sat10:177.010:357.94:08-0.24:240.36:017:54Waning Crescent13Sat
14Sun11:107.311:277.95:02-0.35:190.26:027:52New Moon14Sun
15Mon11:597.55:50-0.46:090.16:037:51New Moon15Mon
16Tue12:157.812:457.66:36-0.46:570.16:047:49New Moon16Tue
17Wed1:027.61:287.67:19-0.27:420.16:057:48Waxing Crescent17Wed
18Thu1:467.42:107.58:010.08:270.26:067:46Waxing Crescent18Thu
19Fri2:307.12:527.48:430.39:120.46:077:45Waxing Crescent19Fri
20Sat3:156.83:367.29:260.710:000.66:087:44Waxing Crescent20Sat
21Sun4:026.54:227.010:121.010:510.96:097:42First Quarter21Sun
22Mon4:526.15:126.811:021.311:451.16:107:40First Quarter22Mon
23Tue5:465.96:066.611:561.56:117:39First Quarter23Tue
24Wed6:455.77:046.512:421.212:541.76:127:37First Quarter24Wed
25Thu7:455.78:026.61:401.21:511.76:137:36Waxing Gibbous25Thu
26Fri8:425.98:566.72:351.12:461.66:147:34Waxing Gibbous26Fri
27Sat9:336.19:446.93:260.93:371.46:157:33Waxing Gibbous27Sat
28Sun10:186.410:297.04:120.74:251.16:167:31Waxing Gibbous28Sun
29Mon10:586.711:117.24:540.55:080.86:177:29Full Moon29Mon
30Tue11:377.111:527.45:330.35:500.56:187:28Full Moon30Tue
31Wed12:167.56:110.16:310.26:197:26Full Moon31Wed
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 10:42 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 30% 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 Waning Crescent (30% 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