Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 2h 22m at 9:10 am (0.4 ft)
Next high tide : 3:45 pm (3.0 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:14 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Mar 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:422.111:062.54:190.24:120.26:205:36Waning Gibbous1Sun
2Mon11:231.911:492.35:040.44:530.36:185:38Third Quarter2Mon
3Tue12:111.86:030.65:420.56:175:39Third Quarter3Tue
4Wed12:412.21:081.77:450.66:440.56:155:40Third Quarter4Wed
5Thu1:472.22:201.79:230.68:010.56:135:41Third Quarter5Thu
6Fri3:142.33:421.910:220.49:370.46:125:42Waning Crescent6Fri
7Sat4:232.54:412.211:070.210:430.16:105:43Waning Crescent7Sat
8Sun6:122.86:282.512:460.07:096:44Waning Crescent8Sun
9Mon6:553.17:122.912:34-0.21:21-0.37:076:46Waning Crescent9Mon
10Tue7:373.37:553.21:22-0.41:54-0.57:056:47New Moon10Tue
11Wed8:203.48:393.52:08-0.62:27-0.77:046:48New Moon11Wed
12Thu9:043.39:243.72:54-0.73:00-0.87:026:49New Moon12Thu
13Fri9:493.210:103.73:39-0.73:36-0.77:006:50Waxing Crescent13Fri
14Sat10:363.010:593.64:26-0.64:14-0.66:596:51Waxing Crescent14Sat
15Sun11:272.811:523.45:19-0.34:57-0.46:576:52Waxing Crescent15Sun
16Mon12:232.56:29-0.15:48-0.26:556:53First Quarter16Mon
17Tue12:513.21:252.37:560.16:520.16:546:54First Quarter17Tue
18Wed1:582.92:332.29:160.28:270.26:526:56First Quarter18Wed
19Thu3:162.73:492.310:260.210:120.26:506:57First Quarter19Thu
20Fri4:362.75:002.411:240.211:220.16:496:58Waxing Gibbous20Fri
21Sat5:392.75:582.612:130.16:476:59Waxing Gibbous21Sat
22Sun6:292.86:462.912:160.012:540.06:457:00Waxing Gibbous22Sun
23Mon7:112.97:293.11:02-0.11:30-0.16:447:01Full Moon23Mon
24Tue7:492.98:083.21:42-0.21:59-0.26:427:02Full Moon24Tue
25Wed8:242.98:443.22:18-0.22:24-0.26:407:03Full Moon25Wed
26Thu8:572.89:173.22:49-0.22:45-0.26:397:04Full Moon26Thu
27Fri9:292.79:473.13:18-0.13:07-0.16:377:05Waning Gibbous27Fri
28Sat10:012.610:182.93:47-0.13:330.06:357:06Waning Gibbous28Sat
29Sun10:342.410:502.84:170.14:030.16:347:07Waning Gibbous29Sun
30Mon11:112.211:272.64:510.24:380.36:327:09Waning Gibbous30Mon
31Tue11:532.15:310.45:180.46:307:10Waning Gibbous31Tue
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 12:27 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 67% 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 First Quarter (67% 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