Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

71°
H 72°
L 66°
ESE
8mph
Low tide
3:12 pm
Photo Credits

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Saturday, September 12, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 3h 27m at 3:12 pm (-0.1 ft)
Next high tide : 9:19 pm (3.4 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 - Jul 1872

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:122.54:443.29:550.411:250.54:217:26Waning Crescent1Mon
2Tue5:042.55:323.210:360.44:217:26Waning Crescent2Tue
3Wed5:512.56:153.212:100.411:16 AM0.44:227:26Waning Crescent3Wed
4Thu6:352.66:553.212:510.411:56 AM0.34:227:26New Moon4Thu
5Fri7:172.77:333.21:300.312:370.34:237:25New Moon5Fri
6Sat7:572.78:083.22:070.31:180.34:237:25New Moon6Sat
7Sun8:352.78:423.12:410.31:580.44:247:25New Moon7Sun
8Mon9:132.79:173.03:140.32:370.44:257:24Waxing Crescent8Mon
9Tue9:522.69:532.93:440.43:170.54:267:24Waxing Crescent9Tue
10Wed10:322.610:322.84:120.43:590.64:267:24Waxing Crescent10Wed
11Thu11:142.711:152.74:430.54:480.74:277:23Waxing Crescent11Thu
12Fri11:592.75:200.55:450.74:287:23First Quarter12Fri
13Sat12:032.612:462.96:030.46:490.74:287:22First Quarter13Sat
14Sun12:542.61:383.06:510.48:020.64:297:22First Quarter14Sun
15Mon1:522.52:373.27:440.39:200.54:307:21Waxing Gibbous15Mon
16Tue2:582.63:403.48:440.210:260.34:317:20Waxing Gibbous16Tue
17Wed4:062.74:413.79:460.111:230.14:327:20Waxing Gibbous17Wed
18Thu5:072.95:383.910:48-0.14:337:19Waxing Gibbous18Thu
19Fri6:033.16:324.112:18-0.211:47 AM-0.24:337:18Full Moon19Fri
20Sat6:573.37:264.21:11-0.312:46-0.44:347:18Full Moon20Sat
21Sun7:513.58:184.22:01-0.41:45-0.44:357:17Full Moon21Sun
22Mon8:433.59:104.02:48-0.42:41-0.34:367:16Waning Gibbous22Mon
23Tue9:353.610:013.83:34-0.33:38-0.24:377:15Waning Gibbous23Tue
24Wed10:293.510:543.44:20-0.24:410.04:387:14Waning Gibbous24Wed
25Thu11:243.411:473.15:08-0.15:540.34:397:13Third Quarter25Thu
26Fri12:203.35:560.17:050.44:407:12Third Quarter26Fri
27Sat12:412.81:173.26:430.38:120.64:417:11Third Quarter27Sat
28Sun1:382.52:173.17:290.49:150.64:427:10Third Quarter28Sun
29Mon2:402.43:213.08:200.610:120.74:437:09Waning Crescent29Mon
30Tue3:442.34:213.09:170.611:020.64:447:08Waning Crescent30Tue
31Wed4:422.45:123.010:110.611:470.64:447:07Waning Crescent31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8459338)

www.USHarbors.com

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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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