Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

71°
H 72°
L 66°
SSE
12mph
Low tide
3:50 pm
Photo Credits

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Sunday, September 13, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 3h 22m at 3:50 pm (0.1 ft)
Next high tide : 9:59 pm (3.2 ft)
Sunset today : 6:59 pm
Sunrise tomorrow : 6:25 am
Moon phase : Waxing Crescent (7% 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 - Jan 1870

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:513.67:122.912:19-0.41:24-0.57:164:32New Moon1Sat
2Sun7:383.67:582.91:04-0.42:06-0.57:164:33New Moon2Sun
3Mon8:233.48:432.81:46-0.42:45-0.47:164:34New Moon3Mon
4Tue9:063.29:272.72:24-0.33:21-0.37:164:35Waxing Crescent4Tue
5Wed9:483.010:122.63:00-0.13:55-0.17:164:35Waxing Crescent5Wed
6Thu10:312.710:572.43:380.14:280.07:164:36Waxing Crescent6Thu
7Fri11:142.511:442.34:200.35:060.27:164:37Waxing Crescent7Fri
8Sat11:582.35:140.55:480.37:154:38First Quarter8Sat
9Sun12:302.312:452.16:310.66:350.37:154:39First Quarter9Sun
10Mon1:172.21:362.08:040.67:250.37:154:40First Quarter10Mon
11Tue2:112.32:371.99:140.58:200.37:154:42First Quarter11Tue
12Wed3:122.43:422.010:120.49:170.27:144:43Waxing Gibbous12Wed
13Thu4:082.54:362.111:000.210:090.17:144:44Waxing Gibbous13Thu
14Fri4:552.85:212.311:450.010:57-0.17:144:45Waxing Gibbous14Fri
15Sat5:383.06:032.412:27-0.17:134:46Waxing Gibbous15Sat
16Sun6:203.26:462.61:07-0.37:134:47Full Moon16Sun
17Mon7:033.47:302.812:27-0.41:44-0.47:124:48Full Moon17Mon
18Tue7:483.48:152.91:12-0.52:20-0.57:124:49Full Moon18Tue
19Wed8:333.49:023.01:58-0.62:55-0.57:114:51Waning Gibbous19Wed
20Thu9:193.49:513.02:44-0.53:32-0.57:114:52Waning Gibbous20Thu
21Fri10:093.210:443.03:33-0.44:13-0.47:104:53Waning Gibbous21Fri
22Sat11:013.011:403.04:29-0.35:01-0.37:094:54Waning Gibbous22Sat
23Sun11:582.75:41-0.15:57-0.27:094:55Third Quarter23Sun
24Mon12:393.012:582.57:130.07:01-0.17:084:57Third Quarter24Mon
25Tue1:423.02:042.38:360.08:16-0.17:074:58Third Quarter25Tue
26Wed2:523.03:162.39:470.09:31-0.17:064:59Waning Crescent26Wed
27Thu4:003.14:242.410:47-0.110:34-0.27:065:00Waning Crescent27Thu
28Fri5:003.25:212.511:39-0.211:28-0.37:055:02Waning Crescent28Fri
29Sat5:523.26:112.712:27-0.37:045:03Waning Crescent29Sat
30Sun6:403.36:572.812:17-0.31:09-0.47:035:04New Moon30Sun
31Mon7:243.37:412.81:01-0.41:48-0.47:025:05New Moon31Mon
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 7% 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 Crescent (7% 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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