Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 15, 2026
The tide is currently falling in Block Island, RI.
Next low tide (tomorrow) : in 5h 57m at 3:28 am (-0.4 ft)
Next high tide (tomorrow) : 9:14 am (3.3 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:12 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jan 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:573.86:222.912:36-0.67:114:28New Moon1Sat
2Sun6:503.97:143.012:08-0.61:27-0.77:114:29New Moon2Sun
3Mon7:423.98:063.11:03-0.72:16-0.77:114:29New Moon3Mon
4Tue8:343.88:563.11:57-0.73:03-0.67:114:30Waxing Crescent4Tue
5Wed9:243.69:483.02:49-0.63:49-0.57:114:31Waxing Crescent5Wed
6Thu10:153.310:422.93:41-0.44:36-0.37:114:32Waxing Crescent6Thu
7Fri11:072.911:372.84:42-0.15:25-0.17:114:33Waxing Crescent7Fri
8Sat12:002.65:570.16:130.07:114:34First Quarter8Sat
9Sun12:332.712:532.37:120.36:580.27:114:35First Quarter9Sun
10Mon1:302.61:502.18:200.47:420.37:114:36First Quarter10Mon
11Tue2:312.52:531.99:230.48:300.37:104:37First Quarter11Tue
12Wed3:342.53:561.910:180.49:230.37:104:38Waxing Gibbous12Wed
13Thu4:292.54:492.011:060.310:130.37:104:40Waxing Gibbous13Thu
14Fri5:162.65:342.111:490.210:590.27:094:41Waxing Gibbous14Fri
15Sat5:562.76:142.212:300.17:094:42Waxing Gibbous15Sat
16Sun6:332.86:522.31:090.07:084:43Full Moon16Sun
17Mon7:082.97:282.412:24-0.11:45-0.17:084:44Full Moon17Mon
18Tue7:412.98:042.51:03-0.12:18-0.17:074:45Full Moon18Tue
19Wed8:152.98:402.51:41-0.22:46-0.17:074:46Full Moon19Wed
20Thu8:502.99:192.52:18-0.23:09-0.17:064:48Waning Gibbous20Thu
21Fri9:282.810:012.62:57-0.13:35-0.17:064:49Waning Gibbous21Fri
22Sat10:102.710:462.63:380.04:07-0.17:054:50Waning Gibbous22Sat
23Sun10:562.611:362.74:260.14:47-0.17:044:51Waning Gibbous23Sun
24Mon11:482.45:230.25:35-0.17:034:52Third Quarter24Mon
25Tue12:292.812:452.36:350.26:30-0.17:034:54Third Quarter25Tue
26Wed1:282.81:492.28:060.27:34-0.17:024:55Third Quarter26Wed
27Thu2:342.93:022.29:330.08:47-0.17:014:56Waning Crescent27Thu
28Fri3:463.14:142.410:38-0.210:04-0.37:004:57Waning Crescent28Fri
29Sat4:503.35:152.611:35-0.411:11-0.46:594:59Waning Crescent29Sat
30Sun5:483.56:102.812:27-0.66:585:00New Moon30Sun
31Mon6:413.77:023.012:10-0.61:15-0.76:575:01New Moon31Mon
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 6:21 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 0% 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 New Moon (0% 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