Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

72°
H -°
L 61°
WSW
10mph
High tide
8:38 pm
Photo Credits

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Friday, September 11, 2026
The tide is currently rising in Block Island, RI.
Next low tide (tomorrow) : 2:46 am (-0.2 ft)
Next high tide : in 3h 59m at 8:38 pm (3.6 ft)
Sunset today : 7:02 pm
Sunrise tomorrow : 6:23 am
Moon phase : New Moon (0% 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 - Feb 2072

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:423.25:132.811:31-0.411:02-0.56:565:02Waxing Gibbous1Mon
2Tue5:383.56:063.112:20-0.66:555:03Full Moon2Tue
3Wed6:303.76:583.31:06-0.86:545:05Full Moon3Wed
4Thu7:213.87:483.512:54-0.91:51-0.96:535:06Full Moon4Thu
5Fri8:103.88:383.61:47-1.02:34-0.96:525:07Full Moon5Fri
6Sat9:003.69:283.52:38-0.93:16-0.96:515:08Waning Gibbous6Sat
7Sun9:493.410:203.43:29-0.83:58-0.76:505:10Waning Gibbous7Sun
8Mon10:413.011:153.24:26-0.54:43-0.46:495:11Waning Gibbous8Mon
9Tue11:352.75:35-0.25:35-0.26:485:12Third Quarter9Tue
10Wed12:133.012:322.46:520.06:390.06:465:13Third Quarter10Wed
11Thu1:142.81:342.28:040.27:550.26:455:15Third Quarter11Thu
12Fri2:212.62:442.09:120.39:070.36:445:16Third Quarter12Fri
13Sat3:322.53:542.110:110.310:080.26:435:17Waning Crescent13Sat
14Sun4:322.64:502.211:000.210:570.26:415:18Waning Crescent14Sun
15Mon5:222.65:372.311:420.111:400.16:405:20Waning Crescent15Mon
16Tue6:042.76:182.512:200.06:395:21Waning Crescent16Tue
17Wed6:422.86:552.612:18-0.112:55-0.16:375:22New Moon17Wed
18Thu7:162.97:282.712:53-0.11:26-0.26:365:23New Moon18Thu
19Fri7:472.98:002.81:26-0.21:54-0.36:355:24New Moon19Fri
20Sat8:172.98:312.81:56-0.22:17-0.36:335:26New Moon20Sat
21Sun8:482.89:042.82:25-0.22:41-0.36:325:27Waxing Crescent21Sun
22Mon9:222.79:392.72:55-0.13:08-0.26:305:28Waxing Crescent22Mon
23Tue10:002.510:192.73:290.03:41-0.16:295:29Waxing Crescent23Tue
24Wed10:432.411:042.74:090.14:20-0.16:275:30Waxing Crescent24Wed
25Thu11:322.311:552.64:560.25:070.06:265:32First Quarter25Thu
26Fri12:282.25:560.36:030.16:245:33First Quarter26Fri
27Sat12:532.61:302.27:170.37:080.16:235:34First Quarter27Sat
28Sun1:592.72:412.39:110.28:240.06:215:35First Quarter28Sun
29Mon3:132.93:532.610:170.09:47-0.26:205:36Waxing Gibbous29Mon
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.
Any commercial use, modification, redistribution, or repackaging without written permission is strictly prohibited.

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 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

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