41.1867’ N, 71.5783’ W

Block Island, RI

73°
H -°
L 67°
WSW
7mph
Low tide
7:27 pm

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Thursday, September 3, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 29m at 7:27 pm (0.6 ft)
Next high tide (tomorrow) : 1:19 am (2.6 ft)
Sunset today : 7:16 pm
Sunrise tomorrow : 6:15 am
Moon phase : Third Quarter (58% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Dec 1896

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:013.54:232.810:38-0.110:17-0.36:534:18Waning Crescent1Tue
2Wed4:563.85:202.911:33-0.311:08-0.46:544:18Waning Crescent2Wed
3Thu5:493.96:133.012:25-0.56:554:17New Moon3Thu
4Fri6:404.07:043.11:17-0.56:564:17New Moon4Fri
5Sat7:314.07:553.112:49-0.52:06-0.56:574:17New Moon5Sat
6Sun8:223.88:453.01:39-0.42:53-0.46:584:17Waxing Crescent6Sun
7Mon9:123.69:352.92:28-0.33:40-0.26:594:17Waxing Crescent7Mon
8Tue10:033.310:282.73:17-0.14:290.06:594:17Waxing Crescent8Tue
9Wed10:563.011:242.64:090.25:220.17:004:17Waxing Crescent9Wed
10Thu11:482.75:190.46:150.37:014:17First Quarter10Thu
11Fri12:202.512:412.46:430.57:030.47:024:17First Quarter11Fri
12Sat1:162.51:342.27:520.67:450.47:034:18First Quarter12Sat
13Sun2:132.52:322.18:550.68:250.47:044:18First Quarter13Sun
14Mon3:102.53:312.09:500.59:070.47:044:18Waxing Gibbous14Mon
15Tue4:022.64:242.110:370.49:490.37:054:18Waxing Gibbous15Tue
16Wed4:462.75:082.211:210.310:310.27:064:19Waxing Gibbous16Wed
17Thu5:252.95:472.312:030.27:064:19Waxing Gibbous17Thu
18Fri6:013.06:252.412:440.17:074:19Full Moon18Fri
19Sat6:383.17:022.51:230.07:074:20Full Moon19Sat
20Sun7:153.17:412.512:34-0.11:590.07:084:20Full Moon20Sun
21Mon7:543.28:212.61:15-0.12:320.07:084:21Full Moon21Mon
22Tue8:343.19:042.61:56-0.13:020.07:094:21Waning Gibbous22Tue
23Wed9:163.19:502.62:38-0.13:330.07:094:22Waning Gibbous23Wed
24Thu10:023.010:402.73:230.04:10-0.17:104:22Waning Gibbous24Thu
25Fri10:512.811:342.84:140.14:53-0.17:104:23Waning Gibbous25Fri
26Sat11:452.75:170.25:44-0.17:104:24Third Quarter26Sat
27Sun12:302.912:422.56:350.36:40-0.17:114:24Third Quarter27Sun
28Mon1:293.01:452.48:070.27:40-0.17:114:25Third Quarter28Mon
29Tue2:333.12:552.49:260.18:48-0.17:114:26Waning Crescent29Tue
30Wed3:403.34:052.410:31-0.19:57-0.27:114:27Waning Crescent30Wed
31Thu4:423.45:062.611:27-0.37:124:27Waning Crescent31Thu
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 neap phase. Tonight's moon is 58% 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 minimum.

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 Third Quarter (58% illuminated). This places Block Island, RI in a neap tide cycle, so tidal ranges are near their weekly minimum 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