Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 11:20 pm (0.6 ft)
Next high tide : in 4h 45m at 4:43 pm (3.0 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:14 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Nov 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:012.75:212.711:280.511:270.37:185:41Waxing Gibbous1Tue
2Wed5:423.16:032.812:110.37:195:40Waxing Gibbous2Wed
3Thu6:213.46:442.912:530.17:205:38Waxing Gibbous3Thu
4Fri7:013.77:273.012:30-0.11:34-0.17:225:37Full Moon4Fri
5Sat7:433.98:113.11:07-0.22:17-0.27:235:36Full Moon5Sat
6Sun7:294.07:583.11:48-0.32:01-0.26:244:35Full Moon6Sun
7Mon8:163.98:473.01:32-0.32:46-0.26:254:34Waning Gibbous7Mon
8Tue9:073.89:392.92:18-0.33:370.06:264:33Waning Gibbous8Tue
9Wed10:023.610:372.93:08-0.14:410.16:284:32Waning Gibbous9Wed
10Thu11:033.411:402.84:050.16:010.26:294:31Third Quarter10Thu
11Fri12:073.25:190.27:110.36:304:30Third Quarter11Fri
12Sat12:452.81:133.07:040.38:110.26:314:29Third Quarter12Sat
13Sun1:522.92:192.98:280.39:040.26:324:28Third Quarter13Sun
14Mon2:583.13:242.89:360.29:520.16:344:27Waning Crescent14Mon
15Tue3:583.34:202.810:320.210:330.06:354:26Waning Crescent15Tue
16Wed4:503.45:102.811:220.111:100.06:364:26Waning Crescent16Wed
17Thu5:363.65:542.812:060.06:374:25New Moon17Thu
18Fri6:193.66:362.812:460.06:384:24New Moon18Fri
19Sat6:593.57:172.712:140.01:230.06:394:23New Moon19Sat
20Sun7:383.47:562.712:460.01:570.16:414:23New Moon20Sun
21Mon8:153.28:352.61:200.12:290.26:424:22Waxing Crescent21Mon
22Tue8:533.09:142.51:550.23:020.36:434:21Waxing Crescent22Tue
23Wed9:312.99:562.32:330.33:390.46:444:21Waxing Crescent23Wed
24Thu10:122.710:412.23:130.54:230.56:454:20Waxing Crescent24Thu
25Fri10:572.611:312.23:570.65:210.66:464:20Waxing Crescent25Fri
26Sat11:462.44:500.76:260.66:474:19First Quarter26Sat
27Sun12:222.212:372.46:000.87:160.66:484:19First Quarter27Sun
28Mon1:142.31:302.37:340.87:590.56:494:19First Quarter28Mon
29Tue2:082.52:292.38:570.68:410.46:514:18First Quarter29Tue
30Wed3:052.73:302.49:550.49:250.26:524:18Waxing Gibbous30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8459338)

Common Questions About Block Island, RI Tides

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What time does the tide turn (slack tide) in Block Island, RI today?

Slack tide in Block Island, RI is approximately 8:01 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 Block Island, RI?

Block Island, RI is currently in a transitional phase. Tonight's moon is 76% 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 Block Island, RI 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 Block Island, RI?

Tide predictions for Block Island, RI 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 Block Island, RI?

Tide data for Block Island, RI is sourced from NOAA Station #8459338. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8459338.

What is the moon phase in Block Island, RI tonight?

Tonight the moon over Block Island, RI is Waxing Gibbous (76% illuminated). This places Block Island, RI 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