Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 3h 07m at 2:51 pm (0.4 ft)
Next high tide : 9:33 pm (3.2 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:17 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Nov 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:033.24:243.310:180.110:46-0.26:174:42Waning Crescent1Fri
2Sat4:573.65:183.411:15-0.211:27-0.46:184:41Waning Crescent2Sat
3Sun5:474.06:083.512:07-0.46:194:39New Moon3Sun
4Mon6:354.26:583.512:08-0.512:59-0.66:214:38New Moon4Mon
5Tue7:244.37:473.512:50-0.51:50-0.66:224:37New Moon5Tue
6Wed8:124.28:373.31:32-0.52:39-0.56:234:36Waxing Crescent6Wed
7Thu9:024.09:283.12:15-0.33:30-0.26:244:35Waxing Crescent7Thu
8Fri9:553.710:222.92:59-0.14:260.06:254:34Waxing Crescent8Fri
9Sat10:523.411:212.73:470.25:350.36:274:33Waxing Crescent9Sat
10Sun11:543.04:470.46:460.46:284:32First Quarter10Sun
11Mon12:242.512:582.86:380.67:480.56:294:31First Quarter11Mon
12Tue1:292.52:032.68:020.78:430.56:304:30First Quarter12Tue
13Wed2:352.53:062.69:070.79:300.56:314:29First Quarter13Wed
14Thu3:362.64:012.510:000.610:090.46:334:28Waxing Gibbous14Thu
15Fri4:262.84:452.610:450.510:410.36:344:27Waxing Gibbous15Fri
16Sat5:072.95:242.611:240.411:100.26:354:26Waxing Gibbous16Sat
17Sun5:413.15:592.712:020.26:364:25Waxing Gibbous17Sun
18Mon6:133.26:322.712:390.16:374:25Full Moon18Mon
19Tue6:433.37:062.712:060.11:140.16:394:24Full Moon19Tue
20Wed7:153.37:412.712:370.01:480.16:404:23Full Moon20Wed
21Thu7:503.38:182.61:110.02:190.16:414:23Full Moon21Thu
22Fri8:273.28:582.61:470.02:490.26:424:22Waning Gibbous22Fri
23Sat9:083.19:422.52:260.13:240.36:434:21Waning Gibbous23Sat
24Sun9:543.010:332.53:070.24:060.46:444:21Waning Gibbous24Sun
25Mon10:462.911:292.53:550.35:020.46:454:20Waning Gibbous25Mon
26Tue11:432.94:520.46:180.46:464:20Third Quarter26Tue
27Wed12:292.512:442.86:040.57:310.36:484:19Third Quarter27Wed
28Thu1:322.71:482.87:320.48:310.16:494:19Third Quarter28Thu
29Fri2:363.02:552.89:020.29:24-0.16:504:19Waning Crescent29Fri
30Sat3:393.34:002.910:100.010:12-0.26:514:18Waning Crescent30Sat
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 6:12 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 97% 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 Full Moon (97% 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