Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 1h 40m at 11:19 am (0.5 ft)
Next high tide : 6:23 pm (3.1 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:15 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Dec 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:293.16:512.61:010.16:524:18Full Moon1Sun
2Mon7:033.17:262.612:150.11:370.16:534:18Full Moon2Mon
3Tue7:363.18:032.612:520.12:110.16:544:17Full Moon3Tue
4Wed8:113.18:402.51:300.12:420.26:554:17Waning Gibbous4Wed
5Thu8:473.09:202.52:080.13:110.26:564:17Waning Gibbous5Thu
6Fri9:272.910:032.52:470.23:420.36:574:17Waning Gibbous6Fri
7Sat10:102.810:512.53:300.34:180.36:584:17Waning Gibbous7Sat
8Sun10:582.711:432.54:180.45:030.36:594:17Third Quarter8Sun
9Mon11:512.65:180.55:560.26:594:17Third Quarter9Mon
10Tue12:382.712:482.56:310.56:520.27:004:17Third Quarter10Tue
11Wed1:352.81:502.57:560.47:510.17:014:17Third Quarter11Wed
12Thu2:373.12:582.59:190.28:54-0.17:024:17Waning Crescent12Thu
13Fri3:413.34:052.610:24-0.19:55-0.27:034:17Waning Crescent13Fri
14Sat4:413.65:052.811:20-0.310:53-0.47:034:18Waning Crescent14Sat
15Sun5:363.86:003.012:14-0.57:044:18New Moon15Sun
16Mon6:294.06:533.11:06-0.67:054:18New Moon16Mon
17Tue7:214.07:443.212:43-0.61:55-0.67:054:18New Moon17Tue
18Wed8:133.98:353.21:36-0.62:43-0.67:064:19Waxing Crescent18Wed
19Thu9:033.79:263.12:28-0.53:28-0.57:074:19Waxing Crescent19Thu
20Fri9:533.410:193.03:19-0.34:14-0.37:074:20Waxing Crescent20Fri
21Sat10:443.111:132.94:14-0.15:02-0.17:084:20Waxing Crescent21Sat
22Sun11:362.75:230.25:500.17:084:21First Quarter22Sun
23Mon12:082.712:292.46:400.46:370.27:094:21First Quarter23Mon
24Tue1:042.61:232.27:490.57:210.37:094:22First Quarter24Tue
25Wed2:022.52:222.08:530.58:060.47:094:22First Quarter25Wed
26Thu3:032.53:262.09:500.58:570.47:104:23Waxing Gibbous26Thu
27Fri4:022.64:232.010:390.49:480.37:104:24Waxing Gibbous27Fri
28Sat4:512.65:102.111:230.310:350.27:104:24Waxing Gibbous28Sat
29Sun5:322.75:512.212:050.27:114:25Waxing Gibbous29Sun
30Mon6:102.96:292.412:460.17:114:26Full Moon30Mon
31Tue6:452.97:052.512:000.01:240.07:114:27Full Moon31Tue
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 2:51 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 90% 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 Waxing Gibbous (90% 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