41.1867’ N, 71.5783’ W

Block Island, RI

62°
H -°
L 59°
WNW
8mph
Low tide
11:18 pm

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Sunday, September 6, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 8m at 11:18 pm (0.3 ft)
Next high tide (tomorrow) : 4:50 am (2.9 ft)
Sunset today : 7:11 pm
Sunrise tomorrow : 6:18 am
Moon phase : Waning Crescent (24% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Aug 1882

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:313.88:553.92:22-0.52:34-0.44:457:07Waning Gibbous1Tue
2Wed9:213.99:453.73:03-0.53:28-0.24:467:06Waning Gibbous2Wed
3Thu10:143.810:383.43:44-0.44:300.04:477:04Waning Gibbous3Thu
4Fri11:093.711:333.24:30-0.25:450.24:487:03Third Quarter4Fri
5Sat12:073.65:220.07:020.34:497:02Third Quarter5Sat
6Sun12:312.91:083.46:230.28:120.54:507:01Third Quarter6Sun
7Mon1:332.72:153.27:330.39:190.54:517:00Third Quarter7Mon
8Tue2:412.63:263.28:490.410:180.54:526:58Waning Crescent8Tue
9Wed3:492.64:293.29:560.411:090.44:536:57Waning Crescent9Wed
10Thu4:482.75:213.210:510.411:540.44:546:56Waning Crescent10Thu
11Fri5:382.96:063.211:370.34:556:55Waning Crescent11Fri
12Sat6:233.06:463.312:340.312:180.34:566:53New Moon12Sat
13Sun7:053.17:223.31:090.212:560.24:576:52New Moon13Sun
14Mon7:433.27:553.21:400.21:300.24:586:50New Moon14Mon
15Tue8:193.28:273.12:070.12:030.34:596:49New Moon15Tue
16Wed8:533.18:583.02:290.22:350.35:006:48Waxing Crescent16Wed
17Thu9:263.19:312.92:510.23:090.45:016:46Waxing Crescent17Thu
18Fri10:003.010:082.73:180.33:460.55:026:45Waxing Crescent18Fri
19Sat10:382.910:492.63:500.44:280.75:036:43Waxing Crescent19Sat
20Sun11:212.911:362.54:280.55:190.85:046:42First Quarter20Sun
21Mon12:102.95:140.66:220.85:056:40First Quarter21Mon
22Tue12:282.41:052.96:090.67:460.85:066:39First Quarter22Tue
23Wed1:272.42:083.07:120.69:120.75:076:37First Quarter23Wed
24Thu2:352.53:173.18:230.510:110.55:086:36Waxing Gibbous24Thu
25Fri3:442.74:213.49:390.310:590.25:096:34Waxing Gibbous25Fri
26Sat4:453.15:163.710:460.011:44-0.15:106:33Waxing Gibbous26Sat
27Sun5:393.46:073.911:44-0.25:116:31Full Moon27Sun
28Mon6:303.76:574.012:28-0.312:39-0.45:126:29Full Moon28Mon
29Tue7:204.07:464.01:10-0.51:33-0.55:136:28Full Moon29Tue
30Wed8:094.18:353.91:52-0.52:25-0.55:146:26Waning Gibbous30Wed
31Thu8:594.19:253.72:33-0.53:18-0.35:156:25Waning Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8459338)

Common Questions About Block Island, RI Tides

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Is this week a spring tide or neap tide in Block Island, RI?

Block Island, RI is currently in a transitional phase. Tonight's moon is 24% 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 shifting between spring and neap.

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 Waning Crescent (24% illuminated). This places Block Island, RI in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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