Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

58°
H -°
L 56°
NE
16mph
Low tide
12:04 am
Photo Credits

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, September 22, 2026
The tide is currently falling in Block Island, RI.
Next low tide (tomorrow) : in 2h 17m at 12:04 am (0.5 ft)
Next high tide (tomorrow) : 5:57 am (2.7 ft)
Sunset today : 6:43 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waxing Gibbous (83% 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 1854

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:163.010:412.93:53-0.44:15-0.47:015:06Waxing Crescent1Wed
2Thu11:032.711:312.84:46-0.14:48-0.27:005:08Waxing Crescent2Thu
3Fri11:512.35:500.25:240.06:595:09First Quarter3Fri
4Sat12:212.612:422.17:030.46:050.26:585:10First Quarter4Sat
5Sun1:142.41:381.98:140.56:540.36:575:11First Quarter5Sun
6Mon2:162.32:471.89:200.57:560.46:565:13First Quarter6Mon
7Tue3:302.33:581.810:180.49:150.46:555:14Waxing Gibbous7Tue
8Wed4:322.34:531.911:070.310:220.36:535:15Waxing Gibbous8Wed
9Thu5:202.55:372.111:510.211:120.16:525:16Waxing Gibbous9Thu
10Fri6:002.66:152.312:320.16:515:18Waxing Gibbous10Fri
11Sat6:352.86:512.41:09-0.16:505:19Full Moon11Sat
12Sun7:082.97:262.612:37-0.21:41-0.26:495:20Full Moon12Sun
13Mon7:403.08:022.71:16-0.32:09-0.36:475:21Full Moon13Mon
14Tue8:143.08:392.81:52-0.32:31-0.36:465:23Full Moon14Tue
15Wed8:502.99:172.92:28-0.32:54-0.36:455:24Waning Gibbous15Wed
16Thu9:292.89:592.93:06-0.23:22-0.36:435:25Waning Gibbous16Thu
17Fri10:132.710:452.93:48-0.13:57-0.36:425:26Waning Gibbous17Fri
18Sat11:012.511:372.94:360.04:40-0.26:415:27Third Quarter18Sat
19Sun11:562.35:370.15:31-0.16:395:29Third Quarter19Sun
20Mon12:332.912:572.26:570.26:330.06:385:30Third Quarter20Mon
21Tue1:372.92:062.28:380.27:470.06:365:31Third Quarter21Tue
22Wed2:522.93:242.39:550.09:22-0.16:355:32Waning Crescent22Wed
23Thu4:073.14:332.510:55-0.210:41-0.36:335:33Waning Crescent23Thu
24Fri5:093.35:322.811:48-0.411:42-0.56:325:35Waning Crescent24Fri
25Sat6:033.46:233.012:35-0.56:305:36New Moon25Sat
26Sun6:523.57:123.212:36-0.61:18-0.76:295:37New Moon26Sun
27Mon7:393.57:583.41:26-0.71:56-0.76:275:38New Moon27Mon
28Tue8:223.48:423.32:10-0.72:30-0.66:265:39New Moon28Tue
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 83% 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 Waxing Gibbous (83% 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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