Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 8, 2026
The tide is currently rising in Block Island, RI.
Next low tide (tomorrow) : 8:28 am (0.3 ft)
Next high tide (tomorrow) : in 2h 31m at 2:25 am (2.6 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:13 am
Moon phase : Third Quarter (47% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Mar 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:532.111:192.64:330.34:270.16:195:37Third Quarter1Fri
2Sat11:412.05:230.45:140.26:175:38Third Quarter2Sat
3Sun12:112.512:381.96:280.56:120.36:165:39Third Quarter3Sun
4Mon1:132.51:451.98:110.57:230.36:145:41Third Quarter4Mon
5Tue2:272.63:022.09:430.38:480.26:125:42Waning Crescent5Tue
6Wed3:452.84:142.310:400.110:13-0.16:115:43Waning Crescent6Wed
7Thu4:493.15:122.711:27-0.211:18-0.46:095:44Waning Crescent7Thu
8Fri5:423.46:043.112:11-0.56:085:45Waning Crescent8Fri
9Sat6:323.66:533.512:14-0.612:52-0.76:065:46New Moon9Sat
10Sun8:193.68:403.71:07-0.82:30-0.97:046:47New Moon10Sun
11Mon9:063.69:273.82:58-0.93:08-0.97:036:49New Moon11Mon
12Tue9:533.410:153.83:47-0.83:44-0.87:016:50Waxing Crescent12Tue
13Wed10:413.111:043.64:37-0.64:21-0.66:596:51Waxing Crescent13Wed
14Thu11:322.811:563.35:32-0.35:00-0.36:586:52Waxing Crescent14Thu
15Fri12:262.56:410.05:460.06:566:53First Quarter15Fri
16Sat12:543.01:262.27:580.26:430.26:546:54First Quarter16Sat
17Sun1:592.72:322.19:120.48:130.46:536:55First Quarter17Sun
18Mon3:162.43:472.010:210.510:010.56:516:56First Quarter18Mon
19Tue4:352.44:562.111:180.411:100.46:496:57Waxing Gibbous19Tue
20Wed5:362.45:512.312:040.36:486:58Waxing Gibbous20Wed
21Thu6:232.56:362.512:000.312:420.26:466:59Waxing Gibbous21Thu
22Fri7:012.67:152.712:410.21:150.16:447:01Waxing Gibbous22Fri
23Sat7:352.77:512.91:190.01:440.06:437:02Full Moon23Sat
24Sun8:052.88:223.01:54-0.12:09-0.16:417:03Full Moon24Sun
25Mon8:342.88:523.12:27-0.12:30-0.26:397:04Full Moon25Mon
26Tue9:032.79:223.12:58-0.12:51-0.16:387:05Full Moon26Tue
27Wed9:342.69:533.03:28-0.13:16-0.16:367:06Waning Gibbous27Wed
28Thu10:082.510:273.03:580.03:450.06:347:07Waning Gibbous28Thu
29Fri10:462.411:062.94:310.14:180.16:337:08Waning Gibbous29Fri
30Sat11:302.211:522.85:090.24:580.26:317:09Waning Gibbous30Sat
31Sun12:212.25:570.45:460.36:297:10Third Quarter31Sun
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 5:26 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 neap phase. Tonight's moon is 47% 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 minimum.

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 Third Quarter (47% illuminated). This places Block Island, RI in a neap tide cycle, so tidal ranges are near their weekly minimum 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