Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 8, 2026
The tide is currently rising in Block Island, RI.
Next low tide (tomorrow) : 8:28 am (0.3 ft)
Next high tide (tomorrow) : in 3h 16m at 2:25 am (2.6 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:13 am
Moon phase : Third Quarter (47% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jan 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:062.610:322.43:240.24:020.17:114:27Waxing Crescent1Sat
2Sun10:442.411:122.34:050.34:360.27:114:28Waxing Crescent2Sun
3Mon11:252.211:552.44:530.55:150.27:114:29First Quarter3Mon
4Tue12:112.15:520.66:000.37:114:30First Quarter4Tue
5Wed12:412.41:032.07:090.66:500.37:114:31First Quarter5Wed
6Thu1:332.52:031.98:470.57:470.27:114:32First Quarter6Thu
7Fri2:352.63:112.09:550.48:490.17:114:33Waxing Gibbous7Fri
8Sat3:412.84:162.210:490.19:53-0.17:114:34Waxing Gibbous8Sat
9Sun4:413.15:122.411:38-0.110:51-0.37:114:35Waxing Gibbous9Sun
10Mon5:353.36:032.712:24-0.37:114:36Full Moon10Mon
11Tue6:263.66:533.01:09-0.57:104:37Full Moon11Tue
12Wed7:163.77:433.212:40-0.71:53-0.77:104:38Full Moon12Wed
13Thu8:053.78:323.31:33-0.82:34-0.77:104:39Full Moon13Thu
14Fri8:533.69:233.42:25-0.83:14-0.77:094:40Waning Gibbous14Fri
15Sat9:423.410:153.33:17-0.73:55-0.67:094:41Waning Gibbous15Sat
16Sun10:343.111:103.34:15-0.44:38-0.57:094:42Waning Gibbous16Sun
17Mon11:282.75:25-0.25:26-0.37:084:44Third Quarter17Mon
18Tue12:083.112:252.46:460.06:23-0.17:084:45Third Quarter18Tue
19Wed1:083.01:262.28:030.27:300.17:074:46Third Quarter19Wed
20Thu2:152.82:362.09:140.28:490.17:064:47Waning Crescent20Thu
21Fri3:262.83:482.010:160.29:590.27:064:48Waning Crescent21Fri
22Sat4:302.84:482.111:090.210:550.17:054:49Waning Crescent22Sat
23Sun5:242.85:392.311:550.111:420.07:044:51Waning Crescent23Sun
24Mon6:102.96:232.412:350.07:044:52New Moon24Mon
25Tue6:502.97:042.512:23-0.11:11-0.17:034:53New Moon25Tue
26Wed7:272.97:412.61:00-0.11:43-0.27:024:54New Moon26Wed
27Thu8:002.98:162.61:32-0.22:11-0.37:014:56New Moon27Thu
28Fri8:312.88:482.62:03-0.12:35-0.37:014:57Waxing Crescent28Fri
29Sat9:012.79:202.62:33-0.12:57-0.27:004:58Waxing Crescent29Sat
30Sun9:332.69:532.63:050.03:22-0.26:594:59Waxing Crescent30Sun
31Mon10:072.410:282.53:390.13:52-0.16:585:01Waxing Crescent31Mon
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 5:26 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 47% 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 (47% 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