Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

72°
H 73°
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 2h 43m 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

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 - Jun 1872

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:442.74:173.39:560.210:570.34:197:16Waning Crescent1Sat
2Sun4:402.75:083.410:370.111:460.24:187:17Waning Crescent2Sun
3Mon5:282.75:533.411:130.14:187:18Waning Crescent3Mon
4Tue6:142.76:353.412:300.211:46 AM0.14:187:18New Moon4Tue
5Wed6:572.77:143.41:110.212:200.24:177:19New Moon5Wed
6Thu7:382.77:523.31:480.212:560.24:177:20New Moon6Thu
7Fri8:192.78:283.22:240.21:340.34:177:20New Moon7Fri
8Sat8:592.69:043.12:570.32:130.34:167:21Waxing Crescent8Sat
9Sun9:392.69:412.93:320.32:530.44:167:21Waxing Crescent9Sun
10Mon10:212.510:202.84:090.43:340.64:167:22Waxing Crescent10Mon
11Tue11:062.411:032.74:520.54:210.74:167:22Waxing Crescent11Tue
12Wed11:512.411:492.65:400.65:160.84:167:23First Quarter12Wed
13Thu12:382.56:250.66:200.84:167:23First Quarter13Thu
14Fri12:382.61:272.67:050.67:300.84:167:24First Quarter14Fri
15Sat1:312.52:202.87:480.58:450.64:167:24First Quarter15Sat
16Sun2:302.53:173.08:360.49:520.44:167:25Waxing Gibbous16Sun
17Mon3:332.64:123.39:270.210:480.24:167:25Waxing Gibbous17Mon
18Tue4:332.75:043.710:170.011:410.04:167:25Waxing Gibbous18Tue
19Wed5:282.95:553.911:08-0.14:167:25Full Moon19Wed
20Thu6:213.06:474.112:33-0.212:00-0.34:177:26Full Moon20Thu
21Fri7:133.27:404.21:25-0.312:54-0.34:177:26Full Moon21Fri
22Sat8:063.38:324.12:16-0.41:48-0.34:177:26Full Moon22Sat
23Sun8:593.39:264.03:06-0.42:44-0.34:177:26Waning Gibbous23Sun
24Mon9:543.310:213.83:58-0.33:42-0.14:187:26Waning Gibbous24Mon
25Tue10:513.311:183.54:54-0.24:520.14:187:26Waning Gibbous25Tue
26Wed11:493.25:510.06:150.24:187:27Third Quarter26Wed
27Thu12:153.212:483.26:460.17:300.44:197:27Third Quarter27Thu
28Fri1:112.91:483.27:360.28:380.44:197:27Third Quarter28Fri
29Sat2:102.72:503.28:240.39:410.54:207:26Third Quarter29Sat
30Sun3:132.53:513.29:110.310:370.54:207:26Waning Crescent30Sun
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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