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 - Jun 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:162.54:573.210:130.211:340.25:158:12Waxing Gibbous1Sun
2Mon5:172.75:513.511:060.15:158:13Waxing Gibbous2Mon
3Tue6:132.96:423.812:260.011:58 AM-0.15:148:14Waxing Gibbous3Tue
4Wed7:063.17:334.01:17-0.212:49-0.35:148:14Full Moon4Wed
5Thu7:583.38:254.22:09-0.41:42-0.45:148:15Full Moon5Thu
6Fri8:513.49:164.22:59-0.52:36-0.45:138:16Full Moon6Fri
7Sat9:433.410:094.03:48-0.53:30-0.45:138:16Waning Gibbous7Sat
8Sun10:363.411:023.84:37-0.44:26-0.25:138:17Waning Gibbous8Sun
9Mon11:323.411:583.65:30-0.35:300.05:138:17Waning Gibbous9Mon
10Tue12:303.36:27-0.16:520.25:138:18Third Quarter10Tue
11Wed12:553.31:293.37:240.08:100.35:138:18Third Quarter11Wed
12Thu1:523.02:293.28:190.19:200.45:128:19Third Quarter12Thu
13Fri2:522.83:323.29:110.210:240.45:128:19Third Quarter13Fri
14Sat3:552.64:343.210:020.311:220.45:128:20Waning Crescent14Sat
15Sun4:572.55:313.210:510.35:128:20Waning Crescent15Sun
16Mon5:512.56:213.212:120.411:34 AM0.35:128:21Waning Crescent16Mon
17Tue6:402.67:053.212:570.412:140.35:138:21Waning Crescent17Tue
18Wed7:242.77:463.31:390.312:530.35:138:21New Moon18Wed
19Thu8:072.88:233.22:190.31:310.35:138:22New Moon19Thu
20Fri8:472.88:593.22:550.22:100.35:138:22New Moon20Fri
21Sat9:252.89:323.13:290.22:490.35:138:22New Moon21Sat
22Sun10:032.810:053.14:010.23:270.35:138:22Waxing Crescent22Sun
23Mon10:402.710:403.04:280.34:050.45:148:22Waxing Crescent23Mon
24Tue11:192.711:182.94:540.34:460.55:148:23Waxing Crescent24Tue
25Wed12:002.75:240.45:320.65:148:23Waxing Crescent25Wed
26Thu12:002.712:442.86:010.46:250.75:158:23First Quarter26Thu
27Fri12:472.71:302.86:450.47:270.75:158:23First Quarter27Fri
28Sat1:382.62:213.07:340.48:370.65:158:23First Quarter28Sat
29Sun2:342.63:193.18:280.39:560.55:168:23First Quarter29Sun
30Mon3:382.64:223.39:270.211:070.35:168:23Waxing Gibbous30Mon
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