Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, June 16, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 1h 05m at 2:57 pm (-0.4 ft)
Next high tide : 9:37 pm (4.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:12 am
Moon phase : New Moon (4% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Oct 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:043.38:223.21:480.22:130.26:436:27Full Moon1Thu
2Fri8:373.38:543.12:120.12:430.26:446:26Full Moon2Fri
3Sat9:083.39:263.02:350.13:120.36:456:24Full Moon3Sat
4Sun9:383.29:592.83:020.23:420.36:466:22Waning Gibbous4Sun
5Mon10:093.110:352.73:320.34:130.56:476:21Waning Gibbous5Mon
6Tue10:443.011:162.54:050.44:480.66:486:19Waning Gibbous6Tue
7Wed11:252.94:420.55:320.76:506:17Waning Gibbous7Wed
8Thu12:022.412:132.85:260.66:300.96:516:16Third Quarter8Thu
9Fri12:552.31:092.86:190.78:220.96:526:14Third Quarter9Fri
10Sat1:542.32:112.87:250.89:440.86:536:13Third Quarter10Sat
11Sun2:592.43:202.98:400.710:380.66:546:11Third Quarter11Sun
12Mon4:072.74:303.110:030.511:220.36:556:09Waning Crescent12Mon
13Tue5:093.05:293.311:130.26:566:08Waning Crescent13Tue
14Wed6:013.46:223.612:010.012:09-0.16:576:06Waning Crescent14Wed
15Thu6:503.87:113.712:40-0.21:02-0.46:586:05New Moon15Thu
16Fri7:384.18:003.81:19-0.41:53-0.56:596:03New Moon16Fri
17Sat8:264.38:493.71:59-0.52:45-0.67:006:02New Moon17Sat
18Sun9:154.39:393.52:40-0.53:35-0.57:026:00Waxing Crescent18Sun
19Mon10:054.210:303.33:22-0.44:28-0.37:035:59Waxing Crescent19Mon
20Tue10:583.911:243.04:06-0.25:280.07:045:57Waxing Crescent20Tue
21Wed11:563.64:540.16:420.27:055:56Waxing Crescent21Wed
22Thu12:242.812:593.35:550.47:570.47:065:54First Quarter22Thu
23Fri1:292.72:073.17:430.69:040.57:075:53First Quarter23Fri
24Sat2:362.63:162.99:120.610:030.57:085:51First Quarter24Sat
25Sun3:462.64:232.810:200.610:540.57:105:50Waxing Gibbous25Sun
26Mon4:492.75:182.811:160.511:350.47:115:49Waxing Gibbous26Mon
27Tue5:402.96:042.812:010.47:125:47Waxing Gibbous27Tue
28Wed6:233.16:432.912:090.312:410.37:135:46Waxing Gibbous28Wed
29Thu7:003.27:182.912:390.21:170.37:145:45Full Moon29Thu
30Fri7:343.37:512.91:040.11:510.27:155:43Full Moon30Fri
31Sat8:053.38:242.91:290.12:240.17:175:42Full Moon31Sat
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 6:17 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 4% 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 New Moon (4% 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