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 : 6:38 pm (0.7 ft)
Next high tide : in 1h 19m at 12:46 pm (2.9 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 - Nov 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:493.811:222.93:56-0.25:280.17:185:41Waning Gibbous1Tue
2Wed11:493.54:490.06:480.27:195:40Waning Gibbous2Wed
3Thu12:252.812:553.35:560.28:030.37:205:39Third Quarter3Thu
4Fri1:312.72:033.17:400.49:070.37:215:37Third Quarter4Fri
5Sat2:392.83:122.99:110.410:040.37:235:36Third Quarter5Sat
6Sun2:472.93:182.89:210.49:520.26:244:35Waning Crescent6Sun
7Mon3:493.14:142.810:190.310:340.26:254:34Waning Crescent7Mon
8Tue4:413.25:022.811:080.211:090.16:264:33Waning Crescent8Tue
9Wed5:263.45:432.811:500.211:380.16:274:32Waning Crescent9Wed
10Thu6:063.56:222.812:280.16:294:31New Moon10Thu
11Fri6:443.56:592.812:040.11:030.16:304:30New Moon11Fri
12Sat7:193.47:352.712:300.11:350.16:314:29New Moon12Sat
13Sun7:533.38:102.61:000.12:050.26:324:28New Moon13Sun
14Mon8:263.18:472.51:340.22:370.26:334:27Waxing Crescent14Mon
15Tue9:013.09:252.42:090.33:100.46:354:26Waxing Crescent15Tue
16Wed9:402.810:072.32:470.43:500.56:364:26Waxing Crescent16Wed
17Thu10:232.710:552.23:270.64:390.66:374:25Waxing Crescent17Thu
18Fri11:132.611:482.14:140.75:480.76:384:24First Quarter18Fri
19Sat12:072.55:120.87:000.76:394:23First Quarter19Sat
20Sun12:442.21:032.56:280.87:520.66:404:23First Quarter20Sun
21Mon1:422.42:032.58:010.78:360.46:424:22First Quarter21Mon
22Tue2:422.73:062.69:200.59:180.26:434:21Waxing Gibbous22Tue
23Wed3:393.04:042.710:180.210:010.06:444:21Waxing Gibbous23Wed
24Thu4:313.44:582.911:080.010:44-0.36:454:20Waxing Gibbous24Thu
25Fri5:203.75:483.011:57-0.311:29-0.46:464:20Full Moon25Fri
26Sat6:084.06:383.112:47-0.56:474:19Full Moon26Sat
27Sun6:584.17:293.212:16-0.51:38-0.56:484:19Full Moon27Sun
28Mon7:504.18:203.11:05-0.62:28-0.56:494:19Full Moon28Mon
29Tue8:424.09:133.11:56-0.53:21-0.46:504:18Waning Gibbous29Tue
30Wed9:373.710:093.02:48-0.44:18-0.26:514:18Waning Gibbous30Wed
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 3:42 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 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