Tides Today & Tomorrow in Black Rock Harbor, CT

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Black Rock Harbor, CT.
Next low tide : in 4h 19m at 8:06 pm (0.5 ft)
Next high tide (tomorrow) : 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 - Apr 2090

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:357.212:586.86:570.07:080.36:347:18New Moon1Sat
2Sun1:127.31:376.87:34-0.17:450.36:337:19Waxing Crescent2Sun
3Mon1:517.32:186.88:14-0.18:250.46:317:20Waxing Crescent3Mon
4Tue2:337.43:046.88:58-0.19:110.56:297:21Waxing Crescent4Tue
5Wed3:217.33:546.79:470.010:040.56:287:22Waxing Crescent5Wed
6Thu4:147.34:506.710:430.111:040.66:267:23First Quarter6Thu
7Fri5:127.25:516.711:430.16:247:24First Quarter7Fri
8Sat6:167.26:556.912:080.512:450.06:237:25First Quarter8Sat
9Sun7:227.27:587.21:140.31:47-0.16:217:26Waxing Gibbous9Sun
10Mon8:257.48:577.62:170.02:46-0.36:207:27Waxing Gibbous10Mon
11Tue9:257.69:528.03:17-0.43:42-0.66:187:29Waxing Gibbous11Tue
12Wed10:207.810:448.34:13-0.84:35-0.76:167:30Waxing Gibbous12Wed
13Thu11:138.011:348.55:06-1.15:25-0.86:157:31Full Moon13Thu
14Fri12:038.05:56-1.26:14-0.86:137:32Full Moon14Fri
15Sat12:228.512:527.96:45-1.27:02-0.66:127:33Full Moon15Sat
16Sun1:098.41:407.77:33-1.17:50-0.46:107:34Waning Gibbous16Sun
17Mon1:578.12:297.48:21-0.88:380.06:097:35Waning Gibbous17Mon
18Tue2:457.83:187.19:10-0.49:290.36:077:36Waning Gibbous18Tue
19Wed3:357.44:106.810:010.010:230.76:067:37Waning Gibbous19Wed
20Thu4:287.05:046.510:550.311:190.96:047:38Third Quarter20Thu
21Fri5:236.76:016.411:510.66:037:39Third Quarter21Fri
22Sat6:226.46:586.312:181.112:470.86:017:40Third Quarter22Sat
23Sun7:216.37:536.41:161.11:420.86:007:41Third Quarter23Sun
24Mon8:176.38:446.62:111.02:330.85:587:42Waning Crescent24Mon
25Tue9:086.49:306.83:020.83:210.85:577:44Waning Crescent25Tue
26Wed9:546.510:117.03:500.64:050.75:567:45Waning Crescent26Wed
27Thu10:366.610:507.14:330.44:460.75:547:46Waning Crescent27Thu
28Fri11:166.711:287.35:140.25:250.65:537:47New Moon28Fri
29Sat11:546.85:520.06:030.55:527:48New Moon29Sat
30Sun12:057.512:336.96:31-0.16:410.55:507:49New Moon30Sun
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 11:07 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 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