Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

61°
H 66°
L 58°
NE
13mph
Low tide
7:10 am
Photo Credits

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Saturday, September 19, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 27m at 7:10 am (1.0 ft)
Next high tide : 2:36 pm (2.5 ft)
Sunset today : 6:49 pm
Sunrise tomorrow : 6:31 am
Moon phase : First Quarter (58% 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 - Feb 1860

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:242.52:011.98:450.57:390.27:015:06First Quarter1Wed
2Thu2:332.63:162.010:010.38:520.07:005:07Waxing Gibbous2Thu
3Fri3:482.84:242.210:560.010:06-0.26:595:08Waxing Gibbous3Fri
4Sat4:523.15:212.611:44-0.211:10-0.46:585:10Waxing Gibbous4Sat
5Sun5:463.46:132.912:29-0.56:575:11Full Moon5Sun
6Mon6:373.67:023.212:07-0.71:12-0.76:565:12Full Moon6Mon
7Tue7:253.77:513.51:01-0.91:52-0.96:555:13Full Moon7Tue
8Wed8:133.68:403.61:54-0.92:30-0.96:545:15Waning Gibbous8Wed
9Thu9:003.59:293.62:44-0.93:07-0.86:535:16Waning Gibbous9Thu
10Fri9:483.210:193.53:36-0.73:44-0.76:525:17Waning Gibbous10Fri
11Sat10:392.811:133.34:32-0.44:24-0.46:505:18Waning Gibbous11Sat
12Sun11:332.55:41-0.15:10-0.26:495:20Third Quarter12Sun
13Mon12:113.012:302.26:590.16:070.16:485:21Third Quarter13Mon
14Tue1:142.81:352.08:150.37:330.26:475:22Third Quarter14Tue
15Wed2:272.62:501.99:250.39:110.36:455:23Waning Crescent15Wed
16Thu3:422.54:022.010:250.310:190.36:445:24Waning Crescent16Thu
17Fri4:442.64:592.211:140.211:110.26:435:26Waning Crescent17Fri
18Sat5:332.65:462.311:550.111:540.06:415:27Waning Crescent18Sat
19Sun6:142.76:272.512:310.06:405:28Waning Crescent19Sun
20Mon6:512.87:042.712:32-0.11:03-0.16:385:29New Moon20Mon
21Tue7:232.87:372.81:06-0.11:30-0.26:375:30New Moon21Tue
22Wed7:542.88:082.81:38-0.21:54-0.36:355:32New Moon22Wed
23Thu8:232.88:372.82:08-0.22:16-0.36:345:33New Moon23Thu
24Fri8:532.69:072.82:36-0.12:39-0.26:335:34Waxing Crescent24Fri
25Sat9:252.59:402.83:060.03:06-0.26:315:35Waxing Crescent25Sat
26Sun10:022.310:172.73:380.13:38-0.16:305:36Waxing Crescent26Sun
27Mon10:432.211:012.64:160.24:160.06:285:38Waxing Crescent27Mon
28Tue11:322.111:532.65:030.45:030.16:275:39First Quarter28Tue
29Wed12:292.06:050.56:000.26:255:40First Quarter29Wed
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 neap phase. Tonight's moon is 58% 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 minimum.

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 First Quarter (58% illuminated). This places Block Island, RI in a neap tide cycle, so tidal ranges are near their weekly minimum 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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