Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 4h 49m at 12:02 pm (0.5 ft)
Next high tide : 7:05 pm (3.1 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:15 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - May 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:462.68:033.21:490.11:220.15:437:42Full Moon1Tue
2Wed8:192.68:353.22:240.11:520.15:427:43Full Moon2Wed
3Thu8:532.69:083.22:570.12:240.15:417:45Full Moon3Thu
4Fri9:292.59:433.13:290.12:580.25:407:46Waning Gibbous4Fri
5Sat10:072.510:223.04:010.23:350.35:387:47Waning Gibbous5Sat
6Sun10:492.411:062.94:360.34:140.45:377:48Waning Gibbous6Sun
7Mon11:362.311:562.85:180.45:000.55:367:49Waning Gibbous7Mon
8Tue12:302.46:120.55:550.55:357:50Third Quarter8Tue
9Wed12:522.81:292.47:180.57:050.65:347:51Third Quarter9Wed
10Thu1:512.82:302.68:230.48:280.55:337:52Third Quarter10Thu
11Fri2:542.83:342.99:220.210:010.45:327:53Third Quarter11Fri
12Sat4:002.84:373.210:150.011:120.15:307:54Waning Crescent12Sat
13Sun5:042.95:353.611:05-0.15:297:55Waning Crescent13Sun
14Mon6:023.16:273.912:11-0.111:52 AM-0.35:287:56Waning Crescent14Mon
15Tue6:563.17:184.11:06-0.312:39-0.45:277:57New Moon15Tue
16Wed7:483.28:094.21:59-0.51:28-0.55:267:58New Moon16Wed
17Thu8:393.29:004.12:51-0.52:17-0.45:267:59New Moon17Thu
18Fri9:303.29:513.93:42-0.43:06-0.35:258:00Waxing Crescent18Fri
19Sat10:223.010:443.64:32-0.23:55-0.15:248:01Waxing Crescent19Sat
20Sun11:152.911:393.35:260.04:460.15:238:02Waxing Crescent20Sun
21Mon12:122.86:260.25:470.35:228:03Waxing Crescent21Mon
22Tue12:353.01:102.77:260.37:090.55:218:04First Quarter22Tue
23Wed1:322.82:082.78:190.48:250.75:218:04First Quarter23Wed
24Thu2:272.53:062.79:070.59:300.75:208:05First Quarter24Thu
25Fri3:242.44:042.79:500.510:280.75:198:06First Quarter25Fri
26Sat4:212.34:572.810:270.511:180.65:198:07Waxing Gibbous26Sat
27Sun5:132.35:422.911:000.55:188:08Waxing Gibbous27Sun
28Mon5:572.36:213.112:020.511:32 AM0.45:178:09Waxing Gibbous28Mon
29Tue6:372.46:573.212:440.412:050.45:178:10Waxing Gibbous29Tue
30Wed7:142.47:323.21:250.312:410.35:168:10Full Moon30Wed
31Thu7:512.58:083.32:060.21:190.35:168:11Full Moon31Thu
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 3:33 pm — 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 95% 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 Waxing Gibbous (95% 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