Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

69°
H 72°
L 66°
E
7mph
Low tide
3:12 pm
Photo Credits

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Saturday, September 12, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 4h 47m at 3:12 pm (-0.1 ft)
Next high tide : 9:19 pm (3.4 ft)
Sunset today : 7:01 pm
Sunrise tomorrow : 6:24 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Featured Local Businesses

New Harbor Great Salt Pond Block Island Aerial

New Shoreham (Block Island) Harbormaster
Champlins Marina Resort, docks filled on a sunny summer day

Champlin's Marina & Resort
Coast Guard Station, Point Judith Rhode Island,

USCG Station Point Judith, RI
Beach in East Hampton, NY -- Nicole Mayone, CC BY-SA 2.0 , via Wikimedia Commons

East Hampton Harbormaster

Block Island, RI Tides - Sep 1872

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:282.86:453.212:360.412:140.35:176:22New Moon1Sun
2Mon7:033.07:163.21:090.312:530.35:186:21New Moon2Mon
3Tue7:373.17:473.21:380.21:290.25:196:19New Moon3Tue
4Wed8:113.28:203.22:010.22:050.25:206:17New Moon4Wed
5Thu8:463.38:563.12:220.22:400.35:216:16Waxing Crescent5Thu
6Fri9:233.39:353.02:470.23:160.35:226:14Waxing Crescent6Fri
7Sat10:053.310:202.83:190.23:580.45:236:12Waxing Crescent7Sat
8Sun10:513.311:112.73:570.34:480.55:246:11Waxing Crescent8Sun
9Mon11:443.24:430.35:540.65:256:09First Quarter9Mon
10Tue12:082.612:433.25:400.47:250.65:266:07First Quarter10Tue
11Wed1:112.61:503.26:470.58:550.55:276:06First Quarter11Wed
12Thu2:212.63:043.38:080.410:010.35:286:04Waxing Gibbous12Thu
13Fri3:352.84:133.59:390.310:550.15:296:02Waxing Gibbous13Fri
14Sat4:393.15:113.710:490.011:43-0.15:306:01Waxing Gibbous14Sat
15Sun5:343.46:043.911:47-0.25:315:59Full Moon15Sun
16Mon6:253.76:523.912:27-0.312:40-0.35:325:57Full Moon16Mon
17Tue7:143.97:393.91:09-0.41:31-0.45:335:55Full Moon17Tue
18Wed8:014.08:253.71:47-0.42:18-0.35:345:54Full Moon18Wed
19Thu8:463.99:103.42:21-0.33:04-0.15:355:52Waning Gibbous19Thu
20Fri9:313.79:563.12:53-0.13:490.15:365:50Waning Gibbous20Fri
21Sat10:183.510:442.83:250.14:400.45:375:49Waning Gibbous21Sat
22Sun11:073.211:362.64:010.35:470.65:385:47Third Quarter22Sun
23Mon11:592.94:420.67:020.85:395:45Third Quarter23Mon
24Tue12:332.412:582.75:350.88:110.95:405:43Third Quarter24Tue
25Wed1:362.32:102.66:440.99:120.95:415:42Third Quarter25Wed
26Thu2:472.33:262.68:250.910:040.85:425:40Waning Crescent26Thu
27Fri3:522.44:232.79:400.810:470.75:435:38Waning Crescent27Fri
28Sat4:412.55:052.810:310.711:250.55:445:37Waning Crescent28Sat
29Sun5:212.85:403.011:150.511:580.45:455:35Waning Crescent29Sun
30Mon5:563.06:103.111:550.35:465:33Waning Crescent30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8459338)

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The US Harbors tide chart design is protected by copyright. It may be printed for personal use only.
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Common Questions About Block Island, RI Tides

Collapse All
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 3% 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 (3% 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

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