Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 9:10 am (0.4 ft)
Next high tide : in 16m at 2:59 am (2.4 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:14 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jun 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:112.95:473.811:03-0.15:158:13Waxing Gibbous1Fri
2Sat6:113.16:424.012:22-0.211:59 AM-0.35:158:13Waxing Gibbous2Sat
3Sun7:073.27:354.21:18-0.412:54-0.45:148:14Full Moon3Sun
4Mon8:013.38:284.22:12-0.51:50-0.45:148:15Full Moon4Mon
5Tue8:543.49:204.13:04-0.52:44-0.45:148:15Full Moon5Tue
6Wed9:463.410:123.93:53-0.53:38-0.35:138:16Waning Gibbous6Wed
7Thu10:383.311:043.74:42-0.34:31-0.15:138:17Waning Gibbous7Thu
8Fri11:323.211:573.45:32-0.15:310.15:138:17Waning Gibbous8Fri
9Sat12:283.16:240.06:440.45:138:18Third Quarter9Sat
10Sun12:503.11:233.07:160.27:560.55:138:18Third Quarter10Sun
11Mon1:432.82:192.98:030.39:000.65:128:19Third Quarter11Mon
12Tue2:372.53:152.98:460.410:000.75:128:19Third Quarter12Tue
13Wed3:342.44:142.89:260.510:540.75:128:20Waning Crescent13Wed
14Thu4:342.35:092.910:090.511:430.65:128:20Waning Crescent14Thu
15Fri5:282.35:563.010:530.55:128:20Waning Crescent15Fri
16Sat6:152.46:373.112:270.511:36 AM0.45:128:21Waning Crescent16Sat
17Sun6:572.57:143.11:100.412:180.45:138:21New Moon17Sun
18Mon7:362.67:503.21:520.31:010.35:138:21New Moon18Mon
19Tue8:152.78:253.32:320.21:430.25:138:22New Moon19Tue
20Wed8:532.89:013.33:090.22:240.25:138:22New Moon20Wed
21Thu9:312.89:383.33:410.23:040.25:138:22Waxing Crescent21Thu
22Fri10:112.810:183.24:080.23:440.35:148:22Waxing Crescent22Fri
23Sat10:542.911:013.14:340.24:260.35:148:23Waxing Crescent23Sat
24Sun11:412.911:483.05:060.25:140.45:148:23Waxing Crescent24Sun
25Mon12:303.05:460.26:110.55:148:23First Quarter25Mon
26Tue12:392.91:223.16:340.27:180.55:158:23First Quarter26Tue
27Wed1:332.82:183.37:270.28:370.55:158:23First Quarter27Wed
28Thu2:332.83:193.48:250.110:010.35:168:23First Quarter28Thu
29Fri3:392.84:253.69:290.111:110.25:168:23Waxing Gibbous29Fri
30Sat4:492.85:293.710:380.05:178:23Waxing Gibbous30Sat
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 6:04 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 transitional phase. Tonight's moon is 67% 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 First Quarter (67% 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