Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

61°
H -°
L 57°
NE
19mph
Low tide
12:04 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 (tomorrow) : in 6h 10m at 12:04 am (0.5 ft)
Next high tide (tomorrow) : 5:57 am (2.7 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

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 - Jul 1854

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:302.611:312.75:010.55:020.74:207:26First Quarter1Sat
2Sun12:162.75:410.56:030.74:217:26First Quarter2Sun
3Mon12:202.71:052.96:250.47:100.74:217:26First Quarter3Mon
4Tue1:132.61:593.07:130.48:260.64:227:26First Quarter4Tue
5Wed2:142.62:593.38:070.39:400.44:227:26Waxing Gibbous5Wed
6Thu3:202.64:003.59:060.210:420.24:237:25Waxing Gibbous6Thu
7Fri4:252.84:583.810:060.011:390.04:247:25Waxing Gibbous7Fri
8Sat5:242.95:544.011:04-0.14:247:25Full Moon8Sat
9Sun6:203.16:494.112:35-0.212:03-0.34:257:24Full Moon9Sun
10Mon7:143.37:434.21:28-0.41:01-0.44:267:24Full Moon10Mon
11Tue8:083.48:354.12:19-0.41:59-0.44:267:23Full Moon11Tue
12Wed9:003.49:283.93:07-0.42:56-0.34:277:23Waning Gibbous12Wed
13Thu9:543.410:203.73:55-0.33:54-0.14:287:22Waning Gibbous13Thu
14Fri10:493.411:133.44:44-0.15:020.14:297:22Waning Gibbous14Fri
15Sat11:453.35:340.06:150.34:297:21Third Quarter15Sat
16Sun12:073.012:413.26:220.27:250.54:307:21Third Quarter16Sun
17Mon1:002.71:373.17:060.38:300.64:317:20Third Quarter17Mon
18Tue1:572.52:373.07:490.59:310.74:327:19Third Quarter18Tue
19Wed2:582.33:383.08:350.510:250.74:337:19Waning Crescent19Wed
20Thu4:002.34:343.09:260.611:130.64:347:18Waning Crescent20Thu
21Fri4:542.45:223.010:160.611:570.64:357:17Waning Crescent21Fri
22Sat5:412.56:053.111:030.54:357:16Waning Crescent22Sat
23Sun6:242.66:443.112:390.511:47 AM0.44:367:16New Moon23Sun
24Mon7:042.77:203.21:180.412:310.44:377:15New Moon24Mon
25Tue7:422.77:543.21:550.31:130.34:387:14New Moon25Tue
26Wed8:192.88:273.22:290.31:520.34:397:13New Moon26Wed
27Thu8:552.89:003.12:570.32:300.44:407:12Waxing Crescent27Thu
28Fri9:322.89:373.03:210.33:080.44:417:11Waxing Crescent28Fri
29Sat10:122.910:172.93:440.33:490.54:427:10Waxing Crescent29Sat
30Sun10:552.911:022.84:150.34:370.64:437:09Waxing Crescent30Sun
31Mon11:413.011:512.74:530.35:330.64:447:08First Quarter31Mon
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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