Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 6h 39m at 9:27 pm (0.6 ft)
Next high tide (tomorrow) : 2:59 am (2.4 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:13 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - May 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:343.41:063.07:170.07:150.25:437:43Third Quarter1Wed
2Thu1:363.22:092.98:240.18:490.35:417:44Third Quarter2Thu
3Fri2:413.03:163.09:250.110:030.35:407:45Third Quarter3Fri
4Sat3:482.84:233.010:200.111:060.25:397:46Waning Crescent4Sat
5Sun4:522.85:223.211:100.15:387:47Waning Crescent5Sun
6Mon5:472.86:133.312:000.211:52 AM0.15:377:48Waning Crescent6Mon
7Tue6:352.86:583.412:480.112:300.05:357:49Waning Crescent7Tue
8Wed7:192.87:403.41:310.11:030.05:347:50New Moon8Wed
9Thu8:012.98:183.42:100.01:340.05:337:51New Moon9Thu
10Fri8:412.88:543.32:470.02:060.05:327:52New Moon10Fri
11Sat9:192.89:293.23:200.12:400.15:317:53New Moon11Sat
12Sun9:572.710:033.13:510.13:150.25:307:54Waxing Crescent12Sun
13Mon10:362.610:382.94:210.23:530.35:297:55Waxing Crescent13Mon
14Tue11:162.511:162.84:530.44:330.45:287:56Waxing Crescent14Tue
15Wed12:002.45:310.55:180.65:277:57Waxing Crescent15Wed
16Thu12:462.46:180.56:110.75:267:58First Quarter16Thu
17Fri12:462.61:352.47:100.67:130.75:257:59First Quarter17Fri
18Sat1:372.52:262.58:030.58:240.75:248:00First Quarter18Sat
19Sun2:332.53:232.78:550.59:430.65:238:01First Quarter19Sun
20Mon3:352.54:223.09:480.310:530.45:238:02Waxing Gibbous20Mon
21Tue4:392.75:183.310:400.111:490.15:228:03Waxing Gibbous21Tue
22Wed5:382.86:103.611:30-0.15:218:04Waxing Gibbous22Wed
23Thu6:323.07:003.912:41-0.112:19-0.25:208:05Full Moon23Thu
24Fri7:243.27:504.11:32-0.31:09-0.45:208:06Full Moon24Fri
25Sat8:163.38:414.22:23-0.52:00-0.55:198:07Full Moon25Sat
26Sun9:083.49:334.23:13-0.52:52-0.55:188:08Full Moon26Sun
27Mon10:003.410:264.04:03-0.53:45-0.45:188:08Waning Gibbous27Mon
28Tue10:543.411:213.84:55-0.44:41-0.25:178:09Waning Gibbous28Tue
29Wed11:513.35:52-0.25:500.05:168:10Waning Gibbous29Wed
30Thu12:183.512:513.26:53-0.17:160.25:168:11Third Quarter30Thu
31Fri1:173.21:513.27:520.18:330.35:168:12Third Quarter31Fri
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 12:13 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 neap phase. Tonight's moon is 58% 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 First Quarter (58% 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