Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

62°
H -°
L 61°
N
5mph
Low tide
2:46 am
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 1h 23m at 2:46 am (-0.2 ft)
Next high tide : 9:02 am (3.8 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 1873

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:292.42:083.07:090.69:180.75:166:23First Quarter1Mon
2Tue2:402.43:213.28:220.510:200.45:176:21Waxing Gibbous2Tue
3Wed3:512.74:283.59:410.311:100.25:186:19Waxing Gibbous3Wed
4Thu4:533.05:243.710:500.111:56-0.15:196:18Waxing Gibbous4Thu
5Fri5:473.36:154.011:49-0.25:206:16Full Moon5Fri
6Sat6:373.77:054.112:40-0.312:45-0.45:216:14Full Moon6Sat
7Sun7:273.97:534.01:22-0.41:39-0.55:226:13Full Moon7Sun
8Mon8:164.18:423.82:02-0.52:31-0.45:236:11Waning Gibbous8Mon
9Tue9:054.19:303.62:40-0.43:23-0.35:246:09Waning Gibbous9Tue
10Wed9:553.910:213.23:18-0.34:200.05:256:08Waning Gibbous10Wed
11Thu10:483.711:162.93:580.05:300.35:266:06Waning Gibbous11Thu
12Fri11:453.44:430.26:450.55:276:04Third Quarter12Fri
13Sat12:142.712:473.25:380.57:570.75:286:03Third Quarter13Sat
14Sun1:172.51:562.96:550.79:040.75:296:01Third Quarter14Sun
15Mon2:272.43:122.88:310.810:020.75:305:59Waning Crescent15Mon
16Tue3:362.44:172.99:430.710:500.75:315:57Waning Crescent16Tue
17Wed4:342.65:062.910:360.611:300.65:325:56Waning Crescent17Wed
18Thu5:212.85:473.011:200.55:335:54Waning Crescent18Thu
19Fri6:022.96:223.112:050.411:58 AM0.45:345:52New Moon19Fri
20Sat6:383.16:543.112:360.312:340.35:355:51New Moon20Sat
21Sun7:123.27:233.11:030.21:090.25:365:49New Moon21Sun
22Mon7:433.37:523.11:270.21:420.25:375:47New Moon22Mon
23Tue8:143.38:243.01:480.22:140.25:385:46New Moon23Tue
24Wed8:463.38:582.92:110.22:460.35:395:44Waxing Crescent24Wed
25Thu9:203.29:362.72:390.33:200.45:415:42Waxing Crescent25Thu
26Fri9:593.110:192.63:120.43:590.65:425:40Waxing Crescent26Fri
27Sat10:453.111:102.53:500.54:470.75:435:39Waxing Crescent27Sat
28Sun11:383.04:370.65:530.85:445:37First Quarter28Sun
29Mon12:082.412:403.05:360.67:330.85:455:35First Quarter29Mon
30Tue1:122.41:483.06:480.68:580.65:465:34First Quarter30Tue
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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