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 5h 18m at 2:57 pm (-0.4 ft)
Next high tide : 9:37 pm (4.1 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 - Feb 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:553.010:293.03:25-0.43:53-0.46:565:03Waning Gibbous1Mon
2Tue10:452.811:223.04:16-0.24:35-0.46:555:04Waning Gibbous2Tue
3Wed11:392.65:19-0.15:24-0.36:545:05Third Quarter3Wed
4Thu12:183.012:372.46:420.16:21-0.16:535:06Third Quarter4Thu
5Fri1:193.01:422.38:140.17:30-0.16:525:08Third Quarter5Fri
6Sat2:283.02:552.29:310.08:57-0.16:515:09Waning Crescent6Sat
7Sun3:423.04:082.310:35-0.110:16-0.16:505:10Waning Crescent7Sun
8Mon4:473.15:092.511:29-0.211:18-0.36:495:11Waning Crescent8Mon
9Tue5:433.26:022.712:18-0.36:475:13Waning Crescent9Tue
10Wed6:323.36:502.912:11-0.41:03-0.46:465:14New Moon10Wed
11Thu7:183.37:353.012:59-0.51:42-0.56:455:15New Moon11Thu
12Fri8:003.38:183.01:41-0.52:17-0.56:445:16New Moon12Fri
13Sat8:393.18:582.92:18-0.42:46-0.46:425:18Waxing Crescent13Sat
14Sun9:172.99:362.82:51-0.33:10-0.36:415:19Waxing Crescent14Sun
15Mon9:532.710:132.73:23-0.13:34-0.26:405:20Waxing Crescent15Mon
16Tue10:302.510:502.53:560.14:03-0.16:385:21Waxing Crescent16Tue
17Wed11:092.211:282.44:360.24:380.16:375:23First Quarter17Wed
18Thu11:522.05:250.45:190.36:365:24First Quarter18Thu
19Fri12:092.312:401.86:340.56:090.46:345:25First Quarter19Fri
20Sat12:572.21:371.78:260.67:070.46:335:26First Quarter20Sat
21Sun1:592.22:511.79:410.58:160.46:315:27First Quarter21Sun
22Mon3:202.34:041.910:370.49:350.36:305:29Waxing Gibbous22Mon
23Tue4:282.54:562.111:230.210:390.16:285:30Waxing Gibbous23Tue
24Wed5:172.75:402.412:040.06:275:31Waxing Gibbous24Wed
25Thu6:003.06:222.712:41-0.26:255:32Full Moon25Thu
26Fri6:423.27:053.012:17-0.41:15-0.46:245:33Full Moon26Fri
27Sat7:243.37:483.21:03-0.61:47-0.66:225:35Full Moon27Sat
28Sun8:073.48:323.41:48-0.72:17-0.66:215:36Full Moon28Sun
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 6:17 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 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