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 Saturday, September 12, 2026
The tide is currently falling in Block Island, RI.
Next low tide (tomorrow) : in 3h 17m at 3:14 am (-0.1 ft)
Next high tide (tomorrow) : 9:44 am (3.7 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

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 1871

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:042.54:372.410:560.310:380.25:336:14Waxing Gibbous1Sat
2Sun4:562.85:222.811:320.011:28-0.15:326:15Waxing Gibbous2Sun
3Mon5:403.06:053.212:05-0.25:306:16Waxing Gibbous3Mon
4Tue6:243.26:483.512:15-0.412:38-0.45:286:18Full Moon4Tue
5Wed7:083.37:333.71:01-0.61:11-0.65:276:19Full Moon5Wed
6Thu7:543.48:183.91:47-0.71:47-0.65:256:20Full Moon6Thu
7Fri8:403.39:053.92:33-0.72:26-0.65:236:21Waning Gibbous7Fri
8Sat9:293.19:553.83:20-0.53:07-0.55:226:22Waning Gibbous8Sat
9Sun10:222.910:503.64:14-0.33:53-0.35:206:23Waning Gibbous9Sun
10Mon11:192.711:513.35:22-0.14:480.05:186:24Third Quarter10Mon
11Tue12:212.66:440.16:020.25:176:25Third Quarter11Tue
12Wed12:573.11:282.57:590.27:540.35:156:26Third Quarter12Wed
13Thu2:092.92:412.59:050.29:190.35:146:27Third Quarter13Thu
14Fri3:222.83:502.710:030.210:230.25:126:28Waning Crescent14Fri
15Sat4:252.94:482.910:510.111:160.15:106:29Waning Crescent15Sat
16Sun5:162.95:363.111:320.05:096:30Waning Crescent16Sun
17Mon6:002.96:193.212:030.012:07-0.15:076:31Waning Crescent17Mon
18Tue6:413.06:593.312:44-0.112:38-0.15:066:32New Moon18Tue
19Wed7:192.97:353.31:21-0.11:04-0.15:046:33New Moon19Wed
20Thu7:552.98:083.31:54-0.11:28-0.15:036:35New Moon20Thu
21Fri8:302.88:393.22:230.01:560.05:016:36New Moon21Fri
22Sat9:052.69:113.02:510.12:270.15:006:37Waxing Crescent22Sat
23Sun9:422.59:442.93:200.23:020.24:586:38Waxing Crescent23Sun
24Mon10:212.310:232.73:540.33:400.44:576:39Waxing Crescent24Mon
25Tue11:062.211:082.64:350.54:230.54:566:40Waxing Crescent25Tue
26Wed11:552.15:310.65:150.64:546:41First Quarter26Wed
27Thu12:002.512:502.17:050.76:190.74:536:42First Quarter27Thu
28Fri12:582.51:502.28:250.67:320.74:516:43First Quarter28Fri
29Sat2:022.52:552.49:180.58:570.54:506:44First Quarter29Sat
30Sun3:112.63:562.710:010.310:080.34:496:45Waxing Gibbous30Sun
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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