Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

66°
H -°
L 65°
SSE
6mph
Low tide
3:14 am
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 2h 28m at 3:14 am (-0.1 ft)
Next high tide : 9:44 am (3.7 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 - Mar 1871

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:342.23:281.810:020.58:510.46:245:40Waxing Gibbous1Wed
2Thu3:572.34:292.010:520.310:080.36:235:41Waxing Gibbous2Thu
3Fri4:522.55:142.211:360.211:030.06:215:43Waxing Gibbous3Fri
4Sat5:342.85:552.512:140.06:205:44Waxing Gibbous4Sat
5Sun6:133.06:352.812:49-0.26:185:45Full Moon5Sun
6Mon6:523.27:153.112:33-0.41:20-0.46:175:46Full Moon6Mon
7Tue7:333.37:573.31:16-0.51:49-0.56:155:47Full Moon7Tue
8Wed8:153.38:403.41:58-0.62:18-0.66:135:48Full Moon8Wed
9Thu8:583.29:253.52:41-0.62:51-0.66:125:49Waning Gibbous9Thu
10Fri9:453.010:143.43:26-0.53:28-0.56:105:51Waning Gibbous10Fri
11Sat10:352.811:073.34:17-0.34:11-0.46:085:52Waning Gibbous11Sat
12Sun11:312.65:20-0.15:02-0.26:075:53Third Quarter12Sun
13Mon12:063.212:322.46:480.16:060.06:055:54Third Quarter13Mon
14Tue1:103.01:392.38:140.17:340.16:035:55Third Quarter14Tue
15Wed2:242.92:552.39:270.19:210.16:025:56Waning Crescent15Wed
16Thu3:402.94:072.510:270.010:320.06:005:57Waning Crescent16Thu
17Fri4:443.05:062.711:19-0.111:28-0.25:585:58Waning Crescent17Fri
18Sat5:373.15:563.012:03-0.25:575:59Waning Crescent18Sat
19Sun6:243.26:413.112:17-0.312:43-0.35:556:00New Moon19Sun
20Mon7:063.27:233.21:01-0.31:17-0.45:536:01New Moon20Mon
21Tue7:453.18:023.21:39-0.31:46-0.45:526:03New Moon21Tue
22Wed8:223.08:383.22:13-0.32:10-0.35:506:04New Moon22Wed
23Thu8:582.99:123.12:43-0.22:33-0.25:486:05Waxing Crescent23Thu
24Fri9:332.79:452.93:11-0.13:00-0.15:476:06Waxing Crescent24Fri
25Sat10:102.410:192.73:410.13:320.15:456:07Waxing Crescent25Sat
26Sun10:502.210:562.54:170.34:100.35:436:08Waxing Crescent26Sun
27Mon11:342.111:402.45:020.54:530.45:426:09First Quarter27Mon
28Tue12:241.96:060.65:470.65:406:10First Quarter28Tue
29Wed12:322.31:221.98:090.76:500.65:386:11First Quarter29Wed
30Thu1:352.32:321.99:210.68:080.65:376:12First Quarter30Thu
31Fri2:532.33:432.110:140.59:360.45:356:13Waxing Gibbous31Fri
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 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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