Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

61°
H -°
L 59°
SSW
11mph
High tide
4:18 am
Photo Credits

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Thursday, November 5, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 10:48 am (0.2 ft)
Next high tide : in 2h 53m at 4:18 am (3.3 ft)
Sunset today : 4:37 pm
Sunrise tomorrow : 6:22 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Featured Local Businesses

Champlins Marina Resort, docks filled on a sunny summer day

Champlin's Marina & Resort
New Harbor Great Salt Pond Block Island Aerial

New Shoreham (Block Island) Harbormaster
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 - May 1772

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:312.76:423.212:360.112:090.14:466:47New Moon1Fri
2Sat7:052.87:153.31:140.012:410.04:456:48New Moon2Sat
3Sun7:402.87:493.31:490.01:140.04:436:49New Moon3Sun
4Mon8:172.88:263.32:200.01:500.04:426:50New Moon4Mon
5Tue8:572.79:063.22:490.12:270.04:416:51Waxing Crescent5Tue
6Wed9:402.79:503.23:210.13:080.14:406:52Waxing Crescent6Wed
7Thu10:282.710:403.13:590.23:530.24:396:53Waxing Crescent7Thu
8Fri11:212.711:343.04:470.34:470.34:376:54First Quarter8Fri
9Sat12:182.85:470.35:520.44:366:55First Quarter9Sat
10Sun12:323.01:182.96:560.27:100.44:356:56First Quarter10Sun
11Mon1:342.92:223.18:050.18:410.34:346:57First Quarter11Mon
12Tue2:422.93:273.39:100.09:570.14:336:58Waxing Gibbous12Tue
13Wed3:503.04:283.610:06-0.110:58-0.24:326:59Waxing Gibbous13Wed
14Thu4:513.15:233.910:57-0.311:54-0.44:317:00Waxing Gibbous14Thu
15Fri5:463.36:144.111:45-0.44:307:01Full Moon15Fri
16Sat6:383.37:054.112:47-0.512:33-0.44:297:02Full Moon16Sat
17Sun7:293.47:544.11:37-0.51:21-0.44:287:03Full Moon17Sun
18Mon8:193.38:433.92:25-0.52:06-0.34:277:04Full Moon18Mon
19Tue9:083.29:323.63:11-0.32:50-0.14:277:05Waning Gibbous19Tue
20Wed9:583.010:213.43:57-0.13:330.14:267:06Waning Gibbous20Wed
21Thu10:502.911:133.14:460.14:210.44:257:07Waning Gibbous21Thu
22Fri11:442.75:400.35:260.64:247:08Third Quarter22Fri
23Sat12:052.812:382.66:340.46:520.74:237:09Third Quarter23Sat
24Sun12:562.61:322.67:220.58:000.84:237:10Third Quarter24Sun
25Mon1:502.42:282.68:070.59:010.74:227:11Third Quarter25Mon
26Tue2:482.43:252.78:500.59:550.74:217:11Waning Crescent26Tue
27Wed3:462.44:142.89:320.510:430.54:217:12Waning Crescent27Wed
28Thu4:352.44:562.910:110.411:280.44:207:13Waning Crescent28Thu
29Fri5:162.55:323.110:490.34:207:14Waning Crescent29Fri
30Sat5:552.66:093.312:100.311:28 AM0.24:197:15New Moon30Sat
31Sun6:342.76:463.412:520.212:070.14:197:15New Moon31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8459338)

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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 13% 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 Waning Crescent (13% 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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