Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Block Island, RI.
Next low tide (tomorrow) : 6:52 am (0.2 ft)
Next high tide (tomorrow) : in 4h 28m at 1:01 am (2.7 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:20 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Aug 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:332.65:063.510:080.25:428:02Waning Crescent1Tue
2Wed5:402.86:093.712:050.211:20 AM0.05:438:01Waning Crescent2Wed
3Thu6:383.17:063.912:590.012:25-0.25:448:00New Moon3Thu
4Fri7:333.37:594.11:50-0.21:26-0.35:457:59New Moon4Fri
5Sat8:253.68:504.12:37-0.32:24-0.45:467:58New Moon5Sat
6Sun9:163.79:383.93:20-0.43:18-0.45:477:57Waxing Crescent6Sun
7Mon10:063.810:253.74:01-0.44:09-0.25:487:55Waxing Crescent7Mon
8Tue10:553.711:133.34:38-0.25:020.05:497:54Waxing Crescent8Tue
9Wed11:463.65:14-0.16:010.25:507:53Waxing Crescent9Wed
10Thu12:023.012:383.45:500.27:070.55:517:51First Quarter10Thu
11Fri12:522.71:313.26:290.48:150.75:527:50First Quarter11Fri
12Sat1:452.42:283.07:140.69:210.85:537:49First Quarter12Sat
13Sun2:432.23:332.88:080.710:250.95:547:47First Quarter13Sun
14Mon3:532.24:432.89:250.811:210.85:557:46Waxing Gibbous14Mon
15Tue5:032.25:422.810:460.85:567:45Waxing Gibbous15Tue
16Wed5:572.36:292.912:080.711:43 AM0.75:577:43Waxing Gibbous16Wed
17Thu6:412.57:093.112:500.612:290.65:587:42Waxing Gibbous17Thu
18Fri7:202.77:443.21:290.51:110.45:597:40Full Moon18Fri
19Sat7:562.88:163.22:040.31:510.36:007:39Full Moon19Sat
20Sun8:303.08:473.22:340.22:280.36:017:37Full Moon20Sun
21Mon9:043.19:193.23:000.23:020.36:027:36Full Moon21Mon
22Tue9:383.29:533.13:230.13:360.36:037:34Waning Gibbous22Tue
23Wed10:143.210:313.03:470.14:110.46:047:33Waning Gibbous23Wed
24Thu10:543.211:132.84:160.14:500.56:057:31Waning Gibbous24Thu
25Fri11:383.24:510.25:370.66:067:30Waning Gibbous25Fri
26Sat12:022.712:273.25:340.36:370.76:077:28Third Quarter26Sat
27Sun12:562.61:243.26:270.38:040.76:087:27Third Quarter27Sun
28Mon1:572.52:273.27:290.49:450.66:097:25Third Quarter28Mon
29Tue3:052.53:413.38:420.410:550.56:107:23Waning Crescent29Tue
30Wed4:202.74:563.410:060.311:510.26:117:22Waning Crescent30Wed
31Thu5:282.95:583.611:240.16:127:20Waning Crescent31Thu
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 3:56 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 62% 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 Third Quarter (62% 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