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 : 9:51 am (0.5 ft)
Next high tide : in 9m at 4:00 am (2.3 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 - Apr 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:302.910:493.64:20-0.34:02-0.46:277:11Waxing Crescent1Fri
2Sat11:212.711:433.45:09-0.14:47-0.36:267:13Waxing Crescent2Sat
3Sun12:192.66:160.15:420.06:247:14First Quarter3Sun
4Mon12:443.11:222.57:480.26:520.16:227:15First Quarter4Mon
5Tue1:522.92:302.59:070.38:320.26:217:16First Quarter5Tue
6Wed3:062.83:442.610:130.210:100.26:197:17First Quarter6Wed
7Thu4:222.84:532.811:090.111:190.16:187:18Waxing Gibbous7Thu
8Fri5:252.95:503.011:560.06:167:19Waxing Gibbous8Fri
9Sat6:162.96:393.312:14-0.112:36-0.16:147:20Waxing Gibbous9Sat
10Sun7:013.07:243.51:02-0.21:12-0.26:137:21Full Moon10Sun
11Mon7:432.98:053.51:46-0.21:44-0.26:117:22Full Moon11Mon
12Tue8:222.98:443.52:25-0.22:11-0.26:107:23Full Moon12Tue
13Wed9:002.89:203.43:00-0.22:36-0.16:087:24Full Moon13Wed
14Thu9:372.79:553.23:31-0.13:040.06:067:25Waning Gibbous14Thu
15Fri10:142.510:303.04:000.03:350.16:057:26Waning Gibbous15Fri
16Sat10:522.411:072.74:320.24:100.36:037:28Waning Gibbous16Sat
17Sun11:342.211:502.65:090.44:500.56:027:29Waning Gibbous17Sun
18Mon12:202.15:590.65:360.66:007:30Third Quarter18Mon
19Tue12:392.41:132.07:210.76:340.85:597:31Third Quarter19Tue
20Wed1:362.32:102.08:480.77:500.85:577:32Third Quarter20Wed
21Thu2:382.33:162.19:490.69:330.75:567:33Third Quarter21Thu
22Fri3:462.44:212.310:350.510:490.55:547:34Waning Crescent22Fri
23Sat4:482.55:132.711:110.311:410.35:537:35Waning Crescent23Sat
24Sun5:372.75:583.011:440.15:527:36Waning Crescent24Sun
25Mon6:222.86:413.412:280.112:17-0.15:507:37Waning Crescent25Mon
26Tue7:063.07:243.71:13-0.212:53-0.35:497:38New Moon26Tue
27Wed7:523.18:093.91:58-0.41:33-0.45:477:39New Moon27Wed
28Thu8:393.18:564.02:44-0.42:16-0.55:467:40New Moon28Thu
29Fri9:273.19:453.93:30-0.43:01-0.45:457:41Waxing Crescent29Fri
30Sat10:173.010:373.84:18-0.33:48-0.35:437:42Waxing Crescent30Sat
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 6:55 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 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