Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 8, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 5h 50m at 8:18 pm (0.7 ft)
Next high tide (tomorrow) : 2:25 am (2.6 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:13 am
Moon phase : Third Quarter (47% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Nov 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:023.48:162.81:240.12:200.17:185:41New Moon1Fri
2Sat8:343.48:502.71:520.12:530.17:195:40New Moon2Sat
3Sun8:073.38:272.61:240.22:240.26:204:39Waxing Crescent3Sun
4Mon8:443.29:062.51:590.22:570.36:214:37Waxing Crescent4Mon
5Tue9:253.19:512.42:360.33:350.56:234:36Waxing Crescent5Tue
6Wed10:133.010:432.43:170.44:220.66:244:35Waxing Crescent6Wed
7Thu11:082.911:422.44:060.55:270.66:254:34First Quarter7Thu
8Fri12:082.85:070.66:520.66:264:33First Quarter8Fri
9Sat12:442.51:112.86:250.67:590.46:274:32First Quarter9Sat
10Sun1:492.72:162.98:030.58:540.26:294:31First Quarter10Sun
11Mon2:553.03:223.09:280.39:420.06:304:30Waxing Gibbous11Mon
12Tue3:563.34:223.110:300.010:26-0.26:314:29Waxing Gibbous12Tue
13Wed4:503.75:163.211:24-0.211:09-0.46:324:28Waxing Gibbous13Wed
14Thu5:404.06:073.312:16-0.46:334:27Full Moon14Thu
15Fri6:294.16:573.31:07-0.56:354:26Full Moon15Fri
16Sat7:184.27:473.212:37-0.51:56-0.56:364:26Full Moon16Sat
17Sun8:084.08:363.11:22-0.42:45-0.36:374:25Waning Gibbous17Sun
18Mon8:583.89:272.92:08-0.33:35-0.16:384:24Waning Gibbous18Mon
19Tue9:503.410:212.72:54-0.14:310.16:394:23Waning Gibbous19Tue
20Wed10:453.111:192.63:430.25:360.36:404:23Waning Gibbous20Wed
21Thu11:452.84:410.46:400.56:424:22Third Quarter21Thu
22Fri12:202.512:442.66:140.67:370.56:434:22Third Quarter22Fri
23Sat1:212.41:442.47:390.78:270.56:444:21Third Quarter23Sat
24Sun2:232.52:432.38:440.79:100.56:454:20Third Quarter24Sun
25Mon3:202.63:392.39:390.69:460.46:464:20Waning Crescent25Mon
26Tue4:102.74:252.310:260.510:180.46:474:19Waning Crescent26Tue
27Wed4:512.95:052.311:080.310:470.36:484:19Waning Crescent27Wed
28Thu5:263.05:412.411:480.211:170.26:494:19Waning Crescent28Thu
29Fri6:003.26:152.512:260.16:504:18New Moon29Fri
30Sat6:333.26:512.51:040.06:514:18New Moon30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8459338)

Common Questions About Block Island, RI Tides

Show All
What time does the tide turn (slack tide) in Block Island, RI today?

Slack tide in Block Island, RI is approximately 11:21 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 neap phase. Tonight's moon is 47% 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 minimum.

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 (47% illuminated). This places Block Island, RI in a neap tide cycle, so tidal ranges are near their weekly minimum 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