Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

62°
H 65°
L 55°
ENE
22mph
Low tide
12:03 pm
Photo Credits

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, September 23, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 2h 24m at 12:03 pm (0.5 ft)
Next high tide : 6:20 pm (3.0 ft)
Sunset today : 6:42 pm
Sunrise tomorrow : 6:35 am
Moon phase : Waxing Gibbous (90% 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 - Dec 1852

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:052.910:462.43:200.24:160.36:574:22Waning Gibbous1Wed
2Thu10:562.811:412.44:080.35:090.46:584:22Third Quarter2Thu
3Fri11:532.85:060.46:160.36:594:22Third Quarter3Fri
4Sat12:392.512:522.76:190.47:240.27:004:21Third Quarter4Sat
5Sun1:402.71:562.77:450.48:260.17:014:21Third Quarter5Sun
6Mon2:443.03:032.89:120.29:22-0.17:014:21Waning Crescent6Mon
7Tue3:473.34:082.910:19-0.110:13-0.37:024:21Waning Crescent7Tue
8Wed4:433.65:053.011:15-0.311:02-0.57:034:21Waning Crescent8Wed
9Thu5:363.95:593.112:08-0.57:044:21New Moon9Thu
10Fri6:274.06:503.21:00-0.67:054:21New Moon10Fri
11Sat7:174.17:413.212:38-0.61:50-0.77:064:21New Moon11Sat
12Sun8:074.08:313.11:26-0.62:38-0.67:074:21New Moon12Sun
13Mon8:573.89:223.02:14-0.53:26-0.47:074:22Waxing Crescent13Mon
14Tue9:483.510:142.83:01-0.34:16-0.27:084:22Waxing Crescent14Tue
15Wed10:413.111:102.73:500.05:110.07:094:22Waxing Crescent15Wed
16Thu11:362.84:520.26:100.27:094:22First Quarter16Thu
17Fri12:072.512:322.66:220.47:040.37:104:23First Quarter17Fri
18Sat1:062.41:282.37:390.57:540.37:114:23First Quarter18Sat
19Sun2:052.42:272.28:430.68:390.47:114:24First Quarter19Sun
20Mon3:062.53:272.19:400.59:200.37:124:24Waxing Gibbous20Mon
21Tue4:002.64:192.210:290.49:590.37:124:25Waxing Gibbous21Tue
22Wed4:452.75:032.211:130.310:350.27:134:25Waxing Gibbous22Wed
23Thu5:232.85:422.311:540.111:110.17:134:26Waxing Gibbous23Thu
24Fri5:573.06:192.412:340.07:144:26Full Moon24Fri
25Sat6:313.16:552.51:12-0.17:144:27Full Moon25Sat
26Sun7:073.17:322.512:27-0.11:49-0.17:144:27Full Moon26Sun
27Mon7:443.28:112.61:05-0.22:21-0.17:154:28Full Moon27Mon
28Tue8:233.18:522.61:45-0.22:51-0.17:154:29Waning Gibbous28Tue
29Wed9:043.19:372.62:25-0.23:21-0.17:154:30Waning Gibbous29Wed
30Thu9:493.010:252.63:08-0.13:580.07:154:30Waning Gibbous30Thu
31Fri10:382.93:550.04:410.07:164:31Waning Gibbous31Fri
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 90% 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 (90% 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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