Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

72°
H 73°
L 66°
SE
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 38m 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 - Mar 1872

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:372.45:140.15:10-0.16:235:41Third Quarter1Fri
2Sat12:122.912:372.36:260.26:100.06:225:42Third Quarter2Sat
3Sun1:142.91:442.28:080.27:220.16:205:43Third Quarter3Sun
4Mon2:272.93:002.39:330.18:560.06:195:45Waning Crescent4Mon
5Tue3:443.04:132.510:36-0.110:24-0.26:175:46Waning Crescent5Tue
6Wed4:503.25:132.811:28-0.311:27-0.46:155:47Waning Crescent6Wed
7Thu5:453.46:063.112:16-0.56:145:48Waning Crescent7Thu
8Fri6:353.56:553.312:22-0.612:59-0.66:125:49New Moon8Fri
9Sat7:223.57:423.51:12-0.71:39-0.76:105:50New Moon9Sat
10Sun8:073.48:263.51:58-0.72:13-0.76:095:51New Moon10Sun
11Mon8:493.29:093.42:41-0.62:44-0.66:075:52Waxing Crescent11Mon
12Tue9:323.09:513.23:21-0.43:11-0.46:055:54Waxing Crescent12Tue
13Wed10:142.710:343.04:00-0.13:40-0.26:045:55Waxing Crescent13Wed
14Thu10:592.411:172.74:410.14:140.16:025:56Waxing Crescent14Thu
15Fri11:472.15:360.44:540.36:005:57First Quarter15Fri
16Sat12:042.412:401.97:000.55:450.55:595:58First Quarter16Sat
17Sun12:572.31:431.88:200.66:480.65:575:59First Quarter17Sun
18Mon2:112.13:021.89:270.68:170.65:556:00First Quarter18Mon
19Tue3:422.24:092.010:220.59:520.55:546:01Waxing Gibbous19Tue
20Wed4:402.34:572.211:060.410:470.35:526:02Waxing Gibbous20Wed
21Thu5:212.55:362.411:450.211:320.15:506:03Waxing Gibbous21Thu
22Fri5:552.76:112.712:190.05:496:04Waxing Gibbous22Fri
23Sat6:272.96:452.912:13-0.112:48-0.15:476:06Full Moon23Sat
24Sun7:003.07:213.212:52-0.21:14-0.25:456:07Full Moon24Sun
25Mon7:363.07:583.31:30-0.31:38-0.35:446:08Full Moon25Mon
26Tue8:143.08:373.42:06-0.42:05-0.45:426:09Full Moon26Tue
27Wed8:552.99:193.42:44-0.32:37-0.45:406:10Waning Gibbous27Wed
28Thu9:392.810:053.43:23-0.33:15-0.35:396:11Waning Gibbous28Thu
29Fri10:292.710:573.24:09-0.13:58-0.25:376:12Waning Gibbous29Fri
30Sat11:242.511:553.15:060.14:500.05:356:13Third Quarter30Sat
31Sun12:252.46:290.25:550.25:346:14Third Quarter31Sun
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 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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