Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Black Rock Harbor, CT.
Next low tide (tomorrow) : 3:34 am (0.6 ft)
Next high tide : in 4h 59m at 9:04 pm (7.0 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Jun 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:387.31:146.57:080.17:161.15:228:19Full Moon1Thu
2Fri1:197.21:556.47:480.37:591.25:218:20Waning Gibbous2Fri
3Sat2:017.02:386.48:290.48:431.35:218:20Waning Gibbous3Sat
4Sun2:456.83:226.49:120.69:311.35:218:21Waning Gibbous4Sun
5Mon3:326.64:086.59:580.710:231.35:208:22Waning Gibbous5Mon
6Tue4:216.44:566.510:450.911:171.35:208:22Third Quarter6Tue
7Wed5:146.25:466.611:351.05:208:23Third Quarter7Wed
8Thu6:096.16:376.712:121.212:251.15:208:24Third Quarter8Thu
9Fri7:056.07:286.91:061.01:151.25:198:24Third Quarter9Fri
10Sat8:006.18:177.11:590.82:051.15:198:25Waning Crescent10Sat
11Sun8:536.29:067.42:500.52:551.15:198:25Waning Crescent11Sun
12Mon9:436.49:547.73:390.23:440.95:198:26Waning Crescent12Mon
13Tue10:326.610:437.94:28-0.14:340.75:198:26New Moon13Tue
14Wed11:216.911:328.15:16-0.35:240.55:198:27New Moon14Wed
15Thu12:107.16:04-0.66:140.35:198:27New Moon15Thu
16Fri12:228.21:017.46:53-0.77:070.15:198:27New Moon16Fri
17Sat1:148.21:537.67:43-0.88:020.05:198:28Waxing Crescent17Sat
18Sun2:088.12:467.78:34-0.78:590.05:198:28Waxing Crescent18Sun
19Mon3:047.93:417.89:27-0.69:580.05:208:28Waxing Crescent19Mon
20Tue4:027.54:377.910:22-0.310:590.05:208:29First Quarter20Tue
21Wed5:027.25:357.811:19-0.15:208:29First Quarter21Wed
22Thu6:046.96:337.812:010.112:170.25:208:29First Quarter22Thu
23Fri7:076.77:317.71:020.11:150.45:218:29Waxing Gibbous23Fri
24Sat8:086.58:287.62:010.12:120.75:218:29Waxing Gibbous24Sat
25Sun9:066.59:217.52:580.13:070.85:218:29Waxing Gibbous25Sun
26Mon9:596.410:107.43:510.23:590.95:228:29Waxing Gibbous26Mon
27Tue10:486.410:557.34:400.24:471.05:228:29Full Moon27Tue
28Wed11:316.311:377.25:250.25:321.15:228:29Full Moon28Wed
29Thu12:126.46:070.36:141.15:238:29Full Moon29Thu
30Fri12:177.112:516.46:460.36:541.25:238:29Full Moon30Fri
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 12:19 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 84% 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 Waxing Gibbous (84% 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