Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 2h 22m at 9:10 pm (0.6 ft)
Next high tide (tomorrow) : 2:56 am (2.6 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:21 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Feb 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:142.16:240.45:300.26:565:03First Quarter1Mon
2Tue12:442.41:071.97:420.56:210.36:555:04First Quarter2Tue
3Wed1:422.22:121.78:540.67:230.46:545:05First Quarter3Wed
4Thu3:012.23:301.89:570.58:460.46:535:06Waxing Gibbous4Thu
5Fri4:132.34:311.910:480.410:050.36:525:08Waxing Gibbous5Fri
6Sat5:032.45:172.111:320.210:590.16:515:09Waxing Gibbous6Sat
7Sun5:432.65:562.312:120.16:495:10Waxing Gibbous7Sun
8Mon6:172.86:332.512:48-0.16:485:11Full Moon8Mon
9Tue6:492.97:082.712:25-0.21:20-0.26:475:13Full Moon9Tue
10Wed7:213.07:442.91:04-0.31:46-0.36:465:14Full Moon10Wed
11Thu7:563.08:213.01:41-0.42:09-0.46:455:15Full Moon11Thu
12Fri8:333.09:013.12:17-0.42:33-0.56:435:16Waning Gibbous12Fri
13Sat9:142.99:433.12:55-0.43:03-0.56:425:18Waning Gibbous13Sat
14Sun9:582.710:293.13:36-0.33:39-0.46:415:19Waning Gibbous14Sun
15Mon10:472.611:213.04:23-0.14:22-0.36:395:20Waning Gibbous15Mon
16Tue11:422.45:220.05:14-0.26:385:21Third Quarter16Tue
17Wed12:202.912:432.36:460.26:18-0.16:375:23Third Quarter17Wed
18Thu1:252.91:522.28:280.27:380.06:355:24Third Quarter18Thu
19Fri2:402.93:102.39:430.09:23-0.16:345:25Waning Crescent19Fri
20Sat3:553.04:212.510:42-0.110:39-0.26:335:26Waning Crescent20Sat
21Sun4:583.25:192.811:33-0.311:37-0.46:315:27Waning Crescent21Sun
22Mon5:513.36:113.112:19-0.56:305:29New Moon22Mon
23Tue6:393.46:593.312:29-0.61:00-0.66:285:30New Moon23Tue
24Wed7:233.47:433.41:17-0.61:37-0.76:275:31New Moon24Wed
25Thu8:063.38:263.42:00-0.62:09-0.66:255:32New Moon25Thu
26Fri8:463.19:063.32:38-0.52:36-0.56:245:33Waxing Crescent26Fri
27Sat9:262.89:453.13:13-0.33:02-0.46:225:35Waxing Crescent27Sat
28Sun10:062.610:242.83:46-0.13:30-0.26:215:36Waxing Crescent28Sun
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 12:03 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 41% 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 (41% 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