Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 11:20 pm (0.6 ft)
Next high tide : in 5h 57m at 4:43 pm (3.0 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:14 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Oct 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:092.24:482.610:150.911:130.76:436:27Waxing Gibbous1Sat
2Sun5:062.45:332.811:110.711:500.66:446:25Waxing Gibbous2Sun
3Mon5:482.76:092.911:560.56:456:24Waxing Gibbous3Mon
4Tue6:233.06:433.112:210.412:370.36:476:22Waxing Gibbous4Tue
5Wed6:573.37:173.112:490.21:160.26:486:20Full Moon5Wed
6Thu7:333.57:543.21:150.01:550.06:496:19Full Moon6Thu
7Fri8:113.78:343.21:44-0.12:330.06:506:17Full Moon7Fri
8Sat8:513.89:173.12:17-0.23:120.06:516:15Full Moon8Sat
9Sun9:343.810:023.02:54-0.23:520.16:526:14Waning Gibbous9Sun
10Mon10:213.710:522.93:34-0.14:370.26:536:12Waning Gibbous10Mon
11Tue11:143.611:482.84:190.05:360.46:546:11Waning Gibbous11Tue
12Wed12:133.45:110.27:110.56:556:09Third Quarter12Wed
13Thu12:512.71:193.26:170.48:350.56:566:07Third Quarter13Thu
14Fri1:582.72:303.17:480.59:410.46:576:06Third Quarter14Fri
15Sat3:082.83:423.19:310.410:370.36:586:04Waning Crescent15Sat
16Sun4:183.04:493.110:450.311:250.17:006:03Waning Crescent16Sun
17Mon5:193.35:443.211:430.17:016:01Waning Crescent17Mon
18Tue6:103.66:323.212:060.012:330.07:026:00Waning Crescent18Tue
19Wed6:563.87:163.212:44-0.11:20-0.17:035:58New Moon19Wed
20Thu7:403.87:583.21:17-0.12:02-0.17:045:57New Moon20Thu
21Fri8:213.88:393.11:47-0.12:410.07:055:55New Moon21Fri
22Sat9:013.79:182.92:160.03:150.17:065:54New Moon22Sat
23Sun9:393.59:582.82:460.13:480.27:075:53Waxing Crescent23Sun
24Mon10:183.210:392.63:190.34:200.47:095:51Waxing Crescent24Mon
25Tue10:583.011:232.43:540.44:580.67:105:50Waxing Crescent25Tue
26Wed11:442.74:340.65:530.87:115:48Waxing Crescent26Wed
27Thu12:132.212:372.65:210.87:320.97:125:47First Quarter27Thu
28Fri1:092.11:352.56:220.98:440.97:135:46First Quarter28Fri
29Sat2:092.12:362.47:501.09:380.87:145:45First Quarter29Sat
30Sun3:132.23:402.59:370.910:220.67:165:43First Quarter30Sun
31Mon4:132.44:362.610:390.710:570.57:175:42Waxing Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8459338)

Common Questions About Block Island, RI Tides

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What time does the tide turn (slack tide) in Block Island, RI today?

Slack tide in Block Island, RI is approximately 8:01 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 76% 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 Waxing Gibbous (76% 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