41.1867’ N, 71.5783’ W

Block Island, RI

51°
H -°
L 49°
NW
8mph
High tide
5:37 am

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, October 7, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 11:58 am (0.1 ft)
Next high tide : in 4h 21m at 5:37 am (3.3 ft)
Sunset today : 6:18 pm
Sunrise tomorrow : 6:49 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Nov 1826

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:564.38:213.51:16-0.52:21-0.56:214:46Waxing Crescent1Wed
2Thu8:484.29:133.42:04-0.53:13-0.46:224:45Waxing Crescent2Thu
3Fri9:423.910:083.22:53-0.34:10-0.26:234:44Waxing Crescent3Fri
4Sat10:393.711:083.03:47-0.15:180.06:244:43Waxing Crescent4Sat
5Sun11:413.34:590.26:290.26:264:42First Quarter5Sun
6Mon12:112.912:453.16:410.47:330.36:274:40First Quarter6Mon
7Tue1:162.91:502.98:010.48:300.36:284:39First Quarter7Tue
8Wed2:232.92:542.79:080.49:210.36:294:38Waxing Gibbous8Wed
9Thu3:263.03:532.710:050.410:050.36:304:37Waxing Gibbous9Thu
10Fri4:213.14:432.710:540.310:430.26:324:36Waxing Gibbous10Fri
11Sat5:073.25:272.711:360.311:140.26:334:35Waxing Gibbous11Sat
12Sun5:483.36:062.812:140.26:344:34Full Moon12Sun
13Mon6:253.36:442.812:500.26:354:33Full Moon13Mon
14Tue6:593.37:202.812:120.11:240.16:364:32Full Moon14Tue
15Wed7:313.27:552.812:440.11:560.16:384:31Full Moon15Wed
16Thu8:033.28:312.71:190.12:260.26:394:31Full Moon16Thu
17Fri8:373.19:082.61:550.22:550.36:404:30Waning Gibbous17Fri
18Sat9:133.09:482.52:330.33:260.46:414:29Waning Gibbous18Sat
19Sun9:532.810:332.43:120.44:030.56:424:28Waning Gibbous19Sun
20Mon10:392.711:232.43:560.54:470.56:444:28Waning Gibbous20Mon
21Tue11:292.64:480.65:420.56:454:27Third Quarter21Tue
22Wed12:162.512:252.65:520.66:420.46:464:26Third Quarter22Wed
23Thu1:122.61:242.67:090.67:410.36:474:26Third Quarter23Thu
24Fri2:122.82:282.68:350.48:410.16:484:25Waning Crescent24Fri
25Sat3:143.13:342.89:480.29:37-0.16:494:25Waning Crescent25Sat
26Sun4:133.54:352.910:46-0.110:30-0.36:514:24Waning Crescent26Sun
27Mon5:073.85:303.111:39-0.411:20-0.56:524:24Waning Crescent27Mon
28Tue5:594.06:223.312:31-0.66:534:23New Moon28Tue
29Wed6:504.27:143.412:11-0.61:22-0.76:544:23New Moon29Wed
30Thu7:424.28:063.41:02-0.72:12-0.76:554:23New Moon30Thu
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 spring phase. Tonight's moon is 10% 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 Waning Crescent (10% 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