Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Block Island, RI.
Next low tide (tomorrow) : 4:56 am (0.3 ft)
Next high tide : in 5h 26m at 10:46 pm (3.0 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:18 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Feb 2057

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:173.45:402.811:57-0.511:43-0.56:565:03Waning Crescent1Thu
2Fri6:113.56:323.012:46-0.66:555:04New Moon2Fri
3Sat7:013.67:223.112:37-0.61:32-0.76:545:05New Moon3Sat
4Sun7:493.68:093.11:27-0.72:13-0.76:535:07New Moon4Sun
5Mon8:343.48:543.12:12-0.62:50-0.66:525:08Waxing Crescent5Mon
6Tue9:173.29:383.02:54-0.53:23-0.56:505:09Waxing Crescent6Tue
7Wed10:002.910:232.83:33-0.33:52-0.36:495:10Waxing Crescent7Wed
8Thu10:432.611:072.74:130.04:20-0.16:485:12Waxing Crescent8Thu
9Fri11:272.311:522.54:580.24:540.06:475:13First Quarter9Fri
10Sat12:132.16:010.45:350.26:465:14First Quarter10Sat
11Sun12:382.31:031.97:260.56:240.36:445:15First Quarter11Sun
12Mon1:302.22:041.88:430.57:210.46:435:17First Quarter12Mon
13Tue2:392.23:211.89:480.58:330.46:425:18Waxing Gibbous13Tue
14Wed3:562.34:241.910:420.49:500.36:415:19Waxing Gibbous14Wed
15Thu4:502.45:112.111:280.210:480.16:395:20Waxing Gibbous15Thu
16Fri5:322.65:502.312:090.06:385:22Waxing Gibbous16Fri
17Sat6:092.86:282.512:47-0.16:365:23Full Moon17Sat
18Sun6:443.07:052.712:17-0.21:21-0.36:355:24Full Moon18Sun
19Mon7:213.17:442.912:58-0.41:50-0.46:345:25Full Moon19Mon
20Tue7:593.28:243.01:38-0.52:16-0.46:325:26Full Moon20Tue
21Wed8:393.19:063.12:18-0.52:43-0.56:315:28Waning Gibbous21Wed
22Thu9:223.09:513.22:59-0.43:15-0.56:295:29Waning Gibbous22Thu
23Fri10:082.910:403.23:43-0.33:52-0.46:285:30Waning Gibbous23Fri
24Sat10:592.711:343.14:35-0.24:37-0.36:265:31Waning Gibbous24Sat
25Sun11:552.55:400.05:30-0.26:255:32Third Quarter25Sun
26Mon12:323.012:572.37:120.16:350.06:235:34Third Quarter26Mon
27Tue1:382.92:072.38:420.17:580.06:225:35Third Quarter27Tue
28Wed2:532.93:242.39:540.09:400.06:205:36Waning Crescent28Wed
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 1:51 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 spring phase. Tonight's moon is 88% 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 Gibbous (88% 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