Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 4h 05m at 10:08 pm (0.8 ft)
Next high tide (tomorrow) : 4:08 am (6.7 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:26 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8467373
Common Questions About Tides

Black Rock Harbor, CT Tides - Apr 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:326.911:477.25:290.05:440.25:366:17Full Moon1Thu
2Fri12:096.86:070.06:200.35:346:18Full Moon2Fri
3Sat12:237.112:476.76:440.16:560.55:326:19Waning Gibbous3Sat
4Sun1:007.12:266.68:230.28:350.76:317:20Waning Gibbous4Sun
5Mon2:407.03:086.49:040.39:170.96:297:21Waning Gibbous5Mon
6Tue3:236.83:546.29:500.510:041.06:287:22Waning Gibbous6Tue
7Wed4:106.74:456.110:400.610:571.26:267:23Third Quarter7Wed
8Thu5:026.55:406.011:350.811:541.26:247:24Third Quarter8Thu
9Fri5:596.56:386.112:320.86:237:25Third Quarter9Fri
10Sat6:596.57:366.312:541.21:280.76:217:26Third Quarter10Sat
11Sun7:586.78:316.71:520.92:220.46:197:28Waning Crescent11Sun
12Mon8:546.99:227.12:480.53:140.26:187:29Waning Crescent12Mon
13Tue9:467.310:117.63:410.14:03-0.16:167:30Waning Crescent13Tue
14Wed10:367.610:588.14:31-0.44:51-0.46:157:31New Moon14Wed
15Thu11:257.811:458.45:20-0.85:38-0.66:137:32New Moon15Thu
16Fri12:148.06:08-1.26:25-0.86:127:33New Moon16Fri
17Sat12:338.71:048.06:57-1.37:14-0.86:107:34New Moon17Sat
18Sun1:228.71:557.97:47-1.38:05-0.66:097:35Waxing Crescent18Sun
19Mon2:148.62:497.78:40-1.28:59-0.46:077:36Waxing Crescent19Mon
20Tue3:088.33:457.59:36-0.99:57-0.16:067:37Waxing Crescent20Tue
21Wed4:067.94:457.210:34-0.510:590.26:047:38First Quarter21Wed
22Thu5:077.55:487.011:36-0.26:037:39First Quarter22Thu
23Fri6:127.26:526.912:040.412:380.06:017:40First Quarter23Fri
24Sat7:177.07:546.91:080.51:390.26:007:41Waxing Gibbous24Sat
25Sun8:206.98:517.02:100.52:360.35:587:42Waxing Gibbous25Sun
26Mon9:166.89:417.13:070.43:280.35:577:44Waxing Gibbous26Mon
27Tue10:066.810:257.23:580.34:160.45:567:45Waxing Gibbous27Tue
28Wed10:506.811:057.24:440.24:580.55:547:46Full Moon28Wed
29Thu11:306.811:417.25:250.15:370.65:537:47Full Moon29Thu
30Fri12:076.76:030.16:140.65:517:48Full 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 1:08 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 72% 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 Gibbous (72% 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