Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

63°
H -°
L 60°
NNW
5mph
Low tide
2:46 am
Photo Credits

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Friday, September 11, 2026
The tide is currently falling in Block Island, RI.
Next low tide (tomorrow) : in 2h 56m at 2:46 am (-0.2 ft)
Next high tide (tomorrow) : 9:02 am (3.8 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 - Nov 1873

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:173.44:433.310:450.010:56-0.26:214:45Waxing Gibbous1Sat
2Sun5:103.75:353.411:38-0.211:36-0.46:234:44Waxing Gibbous2Sun
3Mon5:584.06:243.512:29-0.46:244:43Full Moon3Mon
4Tue6:464.17:113.412:16-0.51:18-0.46:254:42Full Moon4Tue
5Wed7:324.17:593.312:55-0.52:05-0.46:264:41Full Moon5Wed
6Thu8:194.08:463.11:35-0.42:51-0.26:274:40Waning Gibbous6Thu
7Fri9:063.79:352.92:15-0.23:370.06:294:39Waning Gibbous7Fri
8Sat9:553.410:272.72:550.14:310.36:304:38Waning Gibbous8Sat
9Sun10:483.011:242.53:380.35:390.56:314:36Waning Gibbous9Sun
10Mon11:462.84:280.66:490.66:324:35Third Quarter10Mon
11Tue12:252.412:492.65:390.87:500.76:344:35Third Quarter11Tue
12Wed1:282.31:532.47:300.88:430.66:354:34Third Quarter12Wed
13Thu2:322.42:572.48:430.89:280.66:364:33Third Quarter13Thu
14Fri3:312.53:512.49:390.710:050.56:374:32Waning Crescent14Fri
15Sat4:182.74:342.510:260.510:370.46:384:31Waning Crescent15Sat
16Sun4:572.95:102.511:080.411:040.36:404:30Waning Crescent16Sun
17Mon5:313.15:432.611:480.211:310.16:414:29Waning Crescent17Mon
18Tue6:033.36:172.712:260.16:424:29New Moon18Tue
19Wed6:363.46:522.71:030.06:434:28New Moon19Wed
20Thu7:123.57:312.712:310.01:390.06:444:27New Moon20Thu
21Fri7:513.58:122.71:07-0.12:140.06:454:27New Moon21Fri
22Sat8:333.48:562.71:460.02:510.16:474:26Waxing Crescent22Sat
23Sun9:193.39:452.62:270.03:330.16:484:25Waxing Crescent23Sun
24Mon10:103.210:402.63:130.14:230.26:494:25Waxing Crescent24Mon
25Tue11:063.111:402.64:050.25:310.36:504:24First Quarter25Tue
26Wed12:073.05:110.46:480.26:514:24First Quarter26Wed
27Thu12:432.71:102.96:430.47:520.16:524:23First Quarter27Thu
28Fri1:482.82:152.98:250.38:470.06:534:23First Quarter28Fri
29Sat2:543.13:212.99:380.19:38-0.16:544:23Waxing Gibbous29Sat
30Sun3:563.44:222.910:38-0.110:24-0.36:554:22Waxing Gibbous30Sun
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 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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