Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, June 16, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 2h 03m at 3:28 am (-0.4 ft)
Next high tide : 9:14 am (3.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:12 am
Moon phase : New Moon (4% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jul 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:442.88:533.23:000.22:160.25:178:23New Moon1Mon
2Tue9:212.89:283.23:320.22:560.25:188:22New Moon2Tue
3Wed10:002.910:063.23:590.23:350.35:188:22Waxing Crescent3Wed
4Thu10:402.910:463.14:220.24:150.35:198:22Waxing Crescent4Thu
5Fri11:243.011:303.04:510.25:000.45:198:22Waxing Crescent5Fri
6Sat12:113.15:270.25:530.55:208:21Waxing Crescent6Sat
7Sun12:192.91:023.16:110.26:560.55:208:21First Quarter7Sun
8Mon1:132.81:563.27:020.28:100.55:218:21First Quarter8Mon
9Tue2:102.72:553.37:590.29:350.45:228:20First Quarter9Tue
10Wed3:152.74:013.59:020.110:510.35:238:20Waxing Gibbous10Wed
11Thu4:262.85:083.710:120.111:530.15:238:20Waxing Gibbous11Thu
12Fri5:332.96:093.811:23-0.15:248:19Waxing Gibbous12Fri
13Sat6:333.17:054.012:49-0.112:27-0.25:258:19Full Moon13Sat
14Sun7:283.37:584.11:42-0.31:27-0.35:268:18Full Moon14Sun
15Mon8:213.58:494.02:32-0.42:24-0.35:268:17Full Moon15Mon
16Tue9:123.69:373.93:17-0.43:17-0.35:278:17Full Moon16Tue
17Wed10:013.610:243.73:59-0.34:06-0.15:288:16Waning Gibbous17Wed
18Thu10:503.511:113.44:38-0.24:550.15:298:15Waning Gibbous18Thu
19Fri11:393.311:583.15:140.05:490.35:308:15Waning Gibbous19Fri
20Sat12:293.25:490.26:520.55:318:14Third Quarter20Sat
21Sun12:462.81:193.06:250.37:570.75:318:13Third Quarter21Sun
22Mon1:342.52:092.97:040.59:000.85:328:12Third Quarter22Mon
23Tue2:252.33:042.77:500.610:010.85:338:12Third Quarter23Tue
24Wed3:252.24:092.78:430.710:580.85:348:11Waning Crescent24Wed
25Thu4:322.25:112.89:470.711:480.75:358:10Waning Crescent25Thu
26Fri5:302.36:002.910:520.65:368:09Waning Crescent26Fri
27Sat6:172.46:413.012:340.611:47 AM0.55:378:08Waning Crescent27Sat
28Sun6:592.67:173.21:160.512:340.45:388:07New Moon28Sun
29Mon7:372.87:523.31:550.31:190.25:398:06New Moon29Mon
30Tue8:152.98:273.32:300.22:010.25:408:05New Moon30Tue
31Wed8:533.19:043.42:590.12:410.15:418:04New Moon31Wed
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 6:21 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 spring phase. Tonight's moon is 4% 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 maximum.

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 New Moon (4% illuminated). This places Block Island, RI in a spring tide cycle, so tidal ranges are near their weekly maximum 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