Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

47°
H -°
L 46°
ENE
6mph
Low tide
8:02 am
Photo Credits

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, October 19, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 4h 59m at 8:02 am (1.0 ft)
Next high tide : 2:52 pm (2.5 ft)
Sunset today : 5:59 pm
Sunrise tomorrow : 7:02 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Featured Local Businesses

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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 - Oct 1802

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:463.210:082.62:570.33:490.55:465:33Waxing Crescent1Fri
2Sat10:343.111:012.53:370.44:380.75:475:32Waxing Crescent2Sat
3Sun11:303.04:260.55:470.85:485:30First Quarter3Sun
4Mon12:002.412:343.05:270.67:330.75:495:28First Quarter4Mon
5Tue1:062.51:433.06:440.68:500.65:505:27First Quarter5Tue
6Wed2:172.62:553.28:190.59:460.35:515:25Waxing Gibbous6Wed
7Thu3:282.94:013.49:460.310:320.15:525:23Waxing Gibbous7Thu
8Fri4:293.34:573.510:490.011:14-0.25:535:22Waxing Gibbous8Fri
9Sat5:213.75:473.611:43-0.211:54-0.45:545:20Full Moon9Sat
10Sun6:104.06:363.712:35-0.45:555:18Full Moon10Sun
11Mon6:574.27:233.612:33-0.41:25-0.45:575:17Full Moon11Mon
12Tue7:444.28:103.41:12-0.42:13-0.45:585:15Full Moon12Tue
13Wed8:314.18:583.21:50-0.33:00-0.25:595:14Waning Gibbous13Wed
14Thu9:183.89:473.02:29-0.23:480.16:005:12Waning Gibbous14Thu
15Fri10:083.510:392.73:080.14:470.46:015:11Waning Gibbous15Fri
16Sat11:043.111:382.53:520.46:010.66:025:09Third Quarter16Sat
17Sun12:072.84:440.67:130.86:035:07Third Quarter17Sun
18Mon12:412.41:142.66:030.88:170.86:045:06Third Quarter18Mon
19Tue1:472.32:252.57:560.99:110.86:055:04Third Quarter19Tue
20Wed2:552.43:292.69:060.89:550.76:075:03Waning Crescent20Wed
21Thu3:532.64:182.69:590.710:320.66:085:01Waning Crescent21Thu
22Fri4:382.84:572.710:430.611:030.46:095:00Waning Crescent22Fri
23Sat5:163.05:312.811:220.411:300.36:104:59Waning Crescent23Sat
24Sun5:493.26:022.812:000.36:114:57New Moon24Sun
25Mon6:203.36:332.812:370.26:124:56New Moon25Mon
26Tue6:523.57:072.912:190.11:130.16:144:54New Moon26Tue
27Wed7:253.57:432.812:480.11:470.16:154:53New Moon27Wed
28Thu8:023.58:222.81:200.12:200.16:164:52Waxing Crescent28Thu
29Fri8:423.49:042.71:560.12:550.26:174:50Waxing Crescent29Fri
30Sat9:273.39:522.62:350.23:360.46:184:49Waxing Crescent30Sat
31Sun10:183.210:472.53:190.34:270.56:194:48Waxing Crescent31Sun
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 neap phase. Tonight's moon is 59% 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 minimum.

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 First Quarter (59% illuminated). This places Block Island, RI in a neap tide cycle, so tidal ranges are near their weekly minimum 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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