Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 9:10 am (0.4 ft)
Next high tide : in 1h 24m at 2:59 am (2.4 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 - Jul 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:533.06:273.912:110.011:44 AM-0.15:178:22Waxing Gibbous1Sun
2Mon6:513.27:224.11:07-0.212:44-0.25:188:22Full Moon2Mon
3Tue7:463.38:154.11:59-0.31:43-0.35:188:22Full Moon3Tue
4Wed8:383.49:054.02:49-0.42:38-0.35:198:22Full Moon4Wed
5Thu9:293.59:533.83:34-0.43:30-0.25:198:22Waning Gibbous5Thu
6Fri10:183.410:413.64:16-0.34:180.05:208:21Waning Gibbous6Fri
7Sat11:083.311:283.34:57-0.15:080.25:218:21Waning Gibbous7Sat
8Sun11:583.25:350.06:050.45:218:21Waning Gibbous8Sun
9Mon12:163.012:483.16:130.27:100.65:228:20Third Quarter9Mon
10Tue1:032.71:372.96:490.48:140.75:238:20Third Quarter10Tue
11Wed1:512.52:272.87:280.59:160.85:238:19Third Quarter11Wed
12Thu2:422.33:222.78:120.610:160.85:248:19Third Quarter12Thu
13Fri3:422.24:242.79:040.611:100.85:258:18Waning Crescent13Fri
14Sat4:472.25:212.810:030.611:590.75:268:18Waning Crescent14Sat
15Sun5:412.36:072.911:020.55:278:17Waning Crescent15Sun
16Mon6:272.56:473.112:440.511:54 AM0.45:278:17Waning Crescent16Mon
17Tue7:072.67:243.21:270.412:410.35:288:16New Moon17Tue
18Wed7:472.88:003.32:070.31:260.25:298:15New Moon18Wed
19Thu8:262.98:383.42:420.22:080.15:308:14New Moon19Thu
20Fri9:063.19:163.43:130.12:500.15:318:14New Moon20Fri
21Sat9:473.29:573.43:380.03:310.15:328:13Waxing Crescent21Sat
22Sun10:303.310:403.34:050.04:140.25:338:12Waxing Crescent22Sun
23Mon11:163.311:273.14:370.05:010.35:338:11Waxing Crescent23Mon
24Tue12:063.45:170.05:560.45:348:10First Quarter24Tue
25Wed12:193.01:003.46:040.17:060.45:358:09First Quarter25Wed
26Thu1:152.91:573.46:590.18:320.55:368:08First Quarter26Thu
27Fri2:152.83:003.48:010.29:550.45:378:07First Quarter27Fri
28Sat3:222.74:093.59:130.211:030.35:388:06Waxing Gibbous28Sat
29Sun4:342.85:173.610:350.15:398:05Waxing Gibbous29Sun
30Mon5:413.06:163.712:010.111:45 AM0.05:408:04Waxing Gibbous30Mon
31Tue6:383.27:103.812:530.012:45-0.15:418:03Full Moon31Tue
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 6:04 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 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