Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

60°
H 73°
L 66°
ENE
6mph
High tide
9:02 am
Photo Credits

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Saturday, September 12, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 3:12 pm (-0.1 ft)
Next high tide : in 3h 52m at 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 - Apr 1873

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:212.710:413.24:19-0.23:42-0.15:326:15Waxing Crescent1Tue
2Wed11:132.411:342.85:180.14:220.25:316:16Waxing Crescent2Wed
3Thu12:092.26:300.45:110.45:296:17First Quarter3Thu
4Fri12:322.51:102.17:420.66:170.65:276:18First Quarter4Fri
5Sat1:412.32:202.08:480.68:090.75:266:19First Quarter5Sat
6Sun3:022.33:312.19:450.69:320.65:246:20First Quarter6Sun
7Mon4:082.34:272.310:320.510:270.55:226:21Waxing Gibbous7Mon
8Tue4:552.45:112.511:100.411:110.35:216:22Waxing Gibbous8Tue
9Wed5:332.65:492.711:440.211:520.15:196:23Waxing Gibbous9Wed
10Thu6:062.76:222.912:130.15:186:24Waxing Gibbous10Thu
11Fri6:362.76:533.112:300.012:390.05:166:25Full Moon11Fri
12Sat7:072.87:253.31:07-0.11:02-0.15:146:27Full Moon12Sat
13Sun7:402.87:593.31:42-0.21:27-0.15:136:28Full Moon13Sun
14Mon8:162.88:353.42:15-0.21:56-0.15:116:29Full Moon14Mon
15Tue8:552.79:143.32:48-0.12:29-0.15:106:30Waning Gibbous15Tue
16Wed9:372.69:593.23:230.03:070.05:086:31Waning Gibbous16Wed
17Thu10:262.510:503.14:050.13:510.15:076:32Waning Gibbous17Thu
18Fri11:212.411:493.05:000.34:450.25:056:33Third Quarter18Fri
19Sat12:222.46:160.35:510.35:046:34Third Quarter19Sat
20Sun12:532.91:292.57:480.37:170.45:026:35Third Quarter20Sun
21Mon2:032.92:412.79:000.29:030.25:016:36Third Quarter21Mon
22Tue3:163.03:502.99:560.010:180.04:596:37Waning Crescent22Tue
23Wed4:203.14:493.310:44-0.211:17-0.24:586:38Waning Crescent23Wed
24Thu5:153.25:403.611:27-0.34:566:39Waning Crescent24Thu
25Fri6:063.36:283.812:10-0.412:08-0.54:556:40New Moon25Fri
26Sat6:543.37:153.91:00-0.512:46-0.54:536:41New Moon26Sat
27Sun7:403.28:003.91:48-0.51:24-0.44:526:43New Moon27Sun
28Mon8:263.18:443.72:32-0.42:00-0.34:516:44Waxing Crescent28Mon
29Tue9:122.99:283.43:14-0.22:36-0.14:496:45Waxing Crescent29Tue
30Wed9:592.710:143.13:570.03:130.14:486:46Waxing Crescent30Wed
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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