Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 15, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 3h 13m at 2:00 pm (-0.4 ft)
Next high tide : 8:44 pm (4.2 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:12 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Aug 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:472.910:523.04:260.34:260.45:428:03Waxing Crescent1Mon
2Tue11:283.011:352.94:520.35:100.55:438:02Waxing Crescent2Tue
3Wed12:133.05:270.36:010.65:448:00First Quarter3Wed
4Thu12:232.81:023.16:090.37:030.65:457:59First Quarter4Thu
5Fri1:152.71:553.26:590.38:170.65:467:58First Quarter5Fri
6Sat2:142.62:553.37:560.39:450.55:467:57First Quarter6Sat
7Sun3:202.64:043.49:010.311:000.45:477:56Waxing Gibbous7Sun
8Mon4:322.75:133.610:150.25:487:54Waxing Gibbous8Mon
9Tue5:402.96:143.812:010.211:28 AM0.05:497:53Waxing Gibbous9Tue
10Wed6:383.17:104.012:550.012:33-0.15:507:52Full Moon10Wed
11Thu7:333.48:034.11:46-0.21:33-0.35:517:51Full Moon11Thu
12Fri8:253.58:534.12:34-0.32:30-0.35:527:49Full Moon12Fri
13Sat9:153.79:413.93:17-0.43:22-0.35:537:48Full Moon13Sat
14Sun10:043.710:283.73:57-0.34:12-0.25:547:46Waning Gibbous14Sun
15Mon10:523.611:153.34:34-0.25:040.15:557:45Waning Gibbous15Mon
16Tue11:423.55:090.06:010.35:577:44Waning Gibbous16Tue
17Wed12:033.012:323.35:430.27:080.65:587:42Third Quarter17Wed
18Thu12:532.71:233.16:210.48:150.75:597:41Third Quarter18Thu
19Fri1:452.42:172.97:050.69:200.86:007:39Third Quarter19Fri
20Sat2:422.33:202.77:570.710:230.96:017:38Third Quarter20Sat
21Sun3:502.24:322.79:010.811:180.86:027:36Waning Crescent21Sun
22Mon4:572.25:332.810:190.86:037:35Waning Crescent22Mon
23Tue5:512.46:202.912:050.711:22 AM0.76:047:33Waning Crescent23Tue
24Wed6:352.56:593.012:480.612:120.56:057:32Waning Crescent24Wed
25Thu7:142.77:333.11:270.512:560.46:067:30New Moon25Thu
26Fri7:502.98:053.22:020.31:370.36:077:29New Moon26Fri
27Sat8:253.08:373.32:340.22:160.26:087:27New Moon27Sat
28Sun9:013.29:103.32:590.22:540.26:097:25New Moon28Sun
29Mon9:373.39:473.23:210.13:300.26:107:24Waxing Crescent29Mon
30Tue10:153.310:263.13:440.14:080.36:117:22Waxing Crescent30Tue
31Wed10:573.311:112.94:140.14:500.46:127:21Waxing Crescent31Wed
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 5:22 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 0% 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 (0% 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