Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 2h 48m at 9:27 pm (0.6 ft)
Next high tide (tomorrow) : 2:59 am (2.4 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:13 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Apr 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:072.56:232.612:260.36:287:11Waxing Gibbous1Tue
2Wed6:472.67:032.812:320.212:590.16:277:12Waxing Gibbous2Wed
3Thu7:222.77:393.01:090.11:280.06:257:13Full Moon3Thu
4Fri7:542.78:113.11:450.01:53-0.16:237:14Full Moon4Fri
5Sat8:242.78:413.12:18-0.12:15-0.16:227:15Full Moon5Sat
6Sun8:532.79:113.22:50-0.12:37-0.16:207:16Full Moon6Sun
7Mon9:252.69:413.13:21-0.13:030.06:187:17Waning Gibbous7Mon
8Tue9:582.510:153.03:500.03:330.06:177:18Waning Gibbous8Tue
9Wed10:362.410:532.94:220.14:060.26:157:19Waning Gibbous9Wed
10Thu11:182.311:382.84:580.34:450.36:147:21Waning Gibbous10Thu
11Fri12:082.25:440.45:320.46:127:22Third Quarter11Fri
12Sat12:322.71:052.26:460.56:310.56:107:23Third Quarter12Sat
13Sun1:332.72:082.28:150.57:450.56:097:24Third Quarter13Sun
14Mon2:412.73:192.49:430.49:150.46:077:25Third Quarter14Mon
15Tue3:542.84:302.710:430.210:480.26:067:26Waning Crescent15Tue
16Wed5:023.05:323.111:30-0.111:53-0.16:047:27Waning Crescent16Wed
17Thu5:593.26:243.512:13-0.36:037:28Waning Crescent17Thu
18Fri6:513.47:143.812:49-0.412:54-0.56:017:29New Moon18Fri
19Sat7:403.48:024.11:42-0.61:35-0.66:007:30New Moon19Sat
20Sun8:293.48:494.12:33-0.72:17-0.75:587:31New Moon20Sun
21Mon9:183.39:374.03:23-0.72:58-0.65:577:32New Moon21Mon
22Tue10:073.110:273.84:12-0.53:39-0.45:557:33Waxing Crescent22Tue
23Wed10:582.911:193.55:03-0.24:23-0.15:547:34Waxing Crescent23Wed
24Thu11:522.76:040.15:100.15:527:36Waxing Crescent24Thu
25Fri12:163.112:512.57:140.36:100.45:517:37First Quarter25Fri
26Sat1:182.81:532.48:210.57:470.65:497:38First Quarter26Sat
27Sun2:242.62:592.39:220.59:160.75:487:39First Quarter27Sun
28Mon3:332.44:052.410:160.510:230.65:477:40First Quarter28Mon
29Tue4:372.45:032.511:010.511:160.55:457:41Waxing Gibbous29Tue
30Wed5:282.45:502.711:380.45:447:42Waxing Gibbous30Wed
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 12:13 am — 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 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 First 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