Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

61°
H -°
L 60°
NNE
4mph
High tide
9:02 am
Photo Credits

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Saturday, September 12, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 3:12 pm (-0.1 ft)
Next high tide : in 6h 08m at 9:02 am (3.8 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 - Jul 1873

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:092.65:440.55:460.84:207:26First Quarter1Tue
2Wed12:052.512:512.66:200.66:530.84:217:26First Quarter2Wed
3Thu12:492.41:362.76:580.68:040.84:227:26First Quarter3Thu
4Fri1:392.32:262.87:410.69:130.74:227:26First Quarter4Fri
5Sat2:382.33:223.08:300.510:130.64:237:26Waxing Gibbous5Sat
6Sun3:422.44:183.29:230.411:040.44:237:25Waxing Gibbous6Sun
7Mon4:402.55:093.510:170.211:540.24:247:25Waxing Gibbous7Mon
8Tue5:332.76:003.711:100.14:257:25Full Moon8Tue
9Wed6:242.96:503.912:420.012:03-0.14:257:24Full Moon9Wed
10Thu7:143.17:414.01:30-0.112:57-0.24:267:24Full Moon10Thu
11Fri8:053.28:314.02:16-0.21:51-0.24:277:23Full Moon11Fri
12Sat8:573.39:223.93:01-0.32:45-0.24:287:23Waning Gibbous12Sat
13Sun9:493.410:143.73:46-0.23:41-0.14:287:22Waning Gibbous13Sun
14Mon10:443.411:083.44:33-0.24:480.14:297:22Waning Gibbous14Mon
15Tue11:413.45:23-0.16:090.24:307:21Third Quarter15Tue
16Wed12:033.212:383.46:140.07:260.44:317:21Third Quarter16Wed
17Thu1:002.91:383.47:050.18:370.44:317:20Third Quarter17Thu
18Fri2:012.72:423.37:580.29:430.44:327:19Waning Crescent18Fri
19Sat3:072.53:473.38:560.310:410.44:337:18Waning Crescent19Sat
20Sun4:112.54:473.39:560.411:330.44:347:18Waning Crescent20Sun
21Mon5:082.65:393.310:500.44:357:17Waning Crescent21Mon
22Tue5:582.76:263.312:200.411:38 AM0.34:367:16New Moon22Tue
23Wed6:452.87:093.31:030.312:230.34:377:15New Moon23Wed
24Thu7:282.97:483.31:420.31:050.34:387:14New Moon24Thu
25Fri8:102.98:243.22:170.21:430.34:397:14New Moon25Fri
26Sat8:492.98:583.12:490.22:190.34:397:13Waxing Crescent26Sat
27Sun9:272.89:313.03:170.32:560.44:407:12Waxing Crescent27Sun
28Mon10:042.810:052.93:420.33:340.54:417:11Waxing Crescent28Mon
29Tue10:422.810:422.74:070.44:160.64:427:10Waxing Crescent29Tue
30Wed11:202.811:222.64:370.55:050.74:437:09First Quarter30Wed
31Thu12:012.85:140.56:020.84:447:08First Quarter31Thu
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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