Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

63°
H 63°
L 56°
NE
17mph
Low tide
11:17 am
Photo Credits

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, September 22, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 30m at 11:17 am (0.7 ft)
Next high tide : 5:44 pm (2.9 ft)
Sunset today : 6:43 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waxing Gibbous (83% 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 - Apr 1855

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:472.87:053.112:40-0.112:56-0.15:336:14Full Moon1Sun
2Mon7:182.87:373.21:16-0.21:18-0.25:326:15Full Moon2Mon
3Tue7:512.88:113.31:51-0.21:41-0.25:306:16Full Moon3Tue
4Wed8:272.88:483.32:23-0.22:10-0.25:286:17Waning Gibbous4Wed
5Thu9:072.79:283.32:57-0.12:43-0.25:276:18Waning Gibbous5Thu
6Fri9:512.610:143.23:340.03:21-0.15:256:20Waning Gibbous6Fri
7Sat10:412.511:073.14:190.14:060.05:236:21Waning Gibbous7Sat
8Sun11:372.45:170.35:020.25:226:22Third Quarter8Sun
9Mon12:072.912:402.36:430.36:110.35:206:23Third Quarter9Mon
10Tue1:142.91:502.48:180.37:430.35:196:24Third Quarter10Tue
11Wed2:282.93:052.69:260.29:280.25:176:25Waning Crescent11Wed
12Thu3:423.04:122.910:210.010:38-0.15:156:26Waning Crescent12Thu
13Fri4:433.25:093.311:07-0.211:34-0.35:146:27Waning Crescent13Fri
14Sat5:363.35:593.611:50-0.45:126:28Waning Crescent14Sat
15Sun6:243.36:463.812:26-0.412:29-0.55:116:29New Moon15Sun
16Mon7:103.37:313.91:15-0.51:05-0.55:096:30New Moon16Mon
17Tue7:553.28:143.82:00-0.51:40-0.55:086:31New Moon17Tue
18Wed8:403.08:573.62:43-0.42:13-0.35:066:32Waxing Crescent18Wed
19Thu9:242.89:393.33:23-0.22:46-0.15:056:33Waxing Crescent19Thu
20Fri10:102.610:243.04:040.13:220.15:036:34Waxing Crescent20Fri
21Sat10:592.411:122.74:520.34:030.45:026:35Waxing Crescent21Sat
22Sun11:532.26:020.54:520.65:006:36First Quarter22Sun
23Mon12:062.512:512.17:150.75:550.74:596:38First Quarter23Mon
24Tue1:072.31:552.18:200.77:270.84:576:39First Quarter24Tue
25Wed2:202.33:042.29:150.79:010.74:566:40First Quarter25Wed
26Thu3:302.34:012.310:000.610:020.64:546:41Waxing Gibbous26Thu
27Fri4:212.44:442.610:370.410:500.44:536:42Waxing Gibbous27Fri
28Sat5:002.55:202.811:090.311:330.24:526:43Waxing Gibbous28Sat
29Sun5:342.65:543.111:360.14:506:44Waxing Gibbous29Sun
30Mon6:082.76:283.312:140.012:020.04:496:45Full Moon30Mon
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 83% 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 (83% 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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