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 23m 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 - Feb 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:302.22:051.88:580.67:350.46:575:02First Quarter1Wed
2Thu2:402.23:211.810:010.58:500.36:565:03Waxing Gibbous2Thu
3Fri3:562.34:232.010:510.310:020.26:555:04Waxing Gibbous3Fri
4Sat4:492.65:112.211:350.110:570.06:545:05Waxing Gibbous4Sat
5Sun5:312.85:532.512:14-0.16:535:07Waxing Gibbous5Sun
6Mon6:113.06:342.812:50-0.36:525:08Full Moon6Mon
7Tue6:513.27:163.012:29-0.41:23-0.56:515:09Full Moon7Tue
8Wed7:323.37:583.21:12-0.61:53-0.66:495:10Full Moon8Wed
9Thu8:153.38:423.31:56-0.62:23-0.76:485:12Waning Gibbous9Thu
10Fri8:593.29:283.42:39-0.62:56-0.76:475:13Waning Gibbous10Fri
11Sat9:463.010:183.33:24-0.53:33-0.66:465:14Waning Gibbous11Sat
12Sun10:362.811:113.24:15-0.34:17-0.56:455:15Waning Gibbous12Sun
13Mon11:322.65:19-0.15:08-0.36:435:17Third Quarter13Mon
14Tue12:103.112:322.46:480.06:12-0.16:425:18Third Quarter14Tue
15Wed1:143.01:382.38:150.17:380.06:415:19Third Quarter15Wed
16Thu2:262.92:532.39:270.09:200.06:395:20Waning Crescent16Thu
17Fri3:412.94:062.410:28-0.110:29-0.16:385:22Waning Crescent17Fri
18Sat4:453.05:052.611:20-0.211:26-0.36:375:23Waning Crescent18Sat
19Sun5:383.15:562.912:06-0.36:355:24Waning Crescent19Sun
20Mon6:243.26:423.012:15-0.412:46-0.46:345:25New Moon20Mon
21Tue7:073.27:253.112:59-0.41:22-0.56:325:26New Moon21Tue
22Wed7:463.18:043.11:37-0.41:52-0.56:315:28New Moon22Wed
23Thu8:233.08:413.12:11-0.42:16-0.46:305:29New Moon23Thu
24Fri8:582.89:152.92:40-0.32:39-0.36:285:30Waxing Crescent24Fri
25Sat9:332.69:492.83:08-0.13:05-0.26:275:31Waxing Crescent25Sat
26Sun10:092.410:232.63:380.03:37-0.16:255:32Waxing Crescent26Sun
27Mon10:482.211:012.44:130.24:130.16:245:34Waxing Crescent27Mon
28Tue11:312.011:452.34:580.44:570.36:225:35First Quarter28Tue
29Wed12:191.95:580.65:480.46:215:36First Quarter29Wed
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