Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 5h 41m at 9:27 pm (0.6 ft)
Next high tide (tomorrow) : 2:59 am (2.4 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:13 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Apr 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:142.86:02-0.15:45-0.16:287:11Third Quarter1Mon
2Tue12:463.21:162.77:260.16:560.16:277:12Third Quarter2Tue
3Wed1:513.02:222.68:460.18:450.26:257:13Third Quarter3Wed
4Thu3:002.93:332.79:540.110:140.16:237:14Third Quarter4Thu
5Fri4:132.94:442.910:530.011:200.06:227:15Waning Crescent5Fri
6Sat5:172.95:433.111:43-0.16:207:16Waning Crescent6Sat
7Sun6:113.06:343.312:15-0.112:27-0.26:187:17Waning Crescent7Sun
8Mon6:593.17:203.41:04-0.21:06-0.36:177:18New Moon8Mon
9Tue7:433.18:033.51:49-0.31:41-0.36:157:19New Moon9Tue
10Wed8:243.08:423.52:29-0.32:12-0.36:137:21New Moon10Wed
11Thu9:043.09:203.33:05-0.22:39-0.26:127:22New Moon11Thu
12Fri9:432.99:553.23:37-0.13:08-0.16:107:23Waxing Crescent12Fri
13Sat10:212.710:303.04:050.03:400.06:097:24Waxing Crescent13Sat
14Sun11:002.511:062.84:340.24:160.26:077:25Waxing Crescent14Sun
15Mon11:422.411:462.65:090.34:560.46:067:26Waxing Crescent15Mon
16Tue12:282.25:540.55:430.56:047:27First Quarter16Tue
17Wed12:312.51:182.27:030.66:390.66:037:28First Quarter17Wed
18Thu1:222.42:122.28:360.77:470.76:017:29First Quarter18Thu
19Fri2:182.33:112.29:380.69:110.66:007:30First Quarter19Fri
20Sat3:222.44:142.510:270.510:330.55:587:31Waxing Gibbous20Sat
21Sun4:292.55:092.711:070.311:300.25:577:32Waxing Gibbous21Sun
22Mon5:252.65:563.111:420.15:557:33Waxing Gibbous22Mon
23Tue6:142.86:403.412:180.012:18-0.15:547:34Waxing Gibbous23Tue
24Wed7:003.07:253.71:04-0.212:55-0.35:527:36Full Moon24Wed
25Thu7:473.28:113.91:50-0.41:36-0.45:517:37Full Moon25Thu
26Fri8:343.38:584.02:36-0.52:19-0.55:497:38Full Moon26Fri
27Sat9:233.39:474.03:22-0.53:05-0.55:487:39Waning Gibbous27Sat
28Sun10:133.210:393.84:10-0.53:52-0.45:477:40Waning Gibbous28Sun
29Mon11:073.111:343.65:02-0.34:43-0.25:457:41Waning Gibbous29Mon
30Tue12:043.06:05-0.15:440.05:447:42Waning Gibbous30Tue
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 12:13 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 58% 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 First Quarter (58% 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