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 (tomorrow) : in 5h 04m at 4:18 am (-0.3 ft)
Next high tide (tomorrow) : 10:07 am (3.3 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 - Feb 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:012.312:232.06:050.56:060.36:575:02First Quarter1Sat
2Sun12:472.31:161.97:290.56:590.36:565:03First Quarter2Sun
3Mon1:422.32:191.89:090.57:580.36:555:04First Quarter3Mon
4Tue2:472.43:301.910:130.39:050.16:545:06Waxing Gibbous4Tue
5Wed3:562.64:322.111:030.110:10-0.16:535:07Waxing Gibbous5Wed
6Thu4:542.95:242.411:49-0.111:07-0.36:525:08Waxing Gibbous6Thu
7Fri5:453.26:122.712:32-0.46:515:09Full Moon7Fri
8Sat6:343.47:003.012:00-0.51:14-0.66:495:11Full Moon8Sat
9Sun7:213.67:483.212:51-0.71:53-0.76:485:12Full Moon9Sun
10Mon8:093.68:363.31:41-0.82:32-0.86:475:13Full Moon10Mon
11Tue8:563.59:253.42:31-0.83:09-0.86:465:14Waning Gibbous11Tue
12Wed9:453.310:163.43:21-0.73:48-0.76:455:15Waning Gibbous12Wed
13Thu10:363.011:113.34:17-0.54:31-0.56:435:17Waning Gibbous13Thu
14Fri11:312.75:26-0.35:20-0.36:425:18Third Quarter14Fri
15Sat12:083.112:292.46:490.06:20-0.16:415:19Third Quarter15Sat
16Sun1:103.01:332.28:080.17:380.16:395:20Third Quarter16Sun
17Mon2:202.82:462.19:210.19:060.16:385:22Third Quarter17Mon
18Tue3:342.83:582.110:230.110:150.16:375:23Waning Crescent18Tue
19Wed4:382.84:582.311:150.111:110.06:355:24Waning Crescent19Wed
20Thu5:312.95:472.512:010.06:345:25Waning Crescent20Thu
21Fri6:172.96:312.612:41-0.16:325:26New Moon21Fri
22Sat6:583.07:122.712:39-0.21:15-0.26:315:28New Moon22Sat
23Sun7:353.07:492.81:15-0.21:45-0.36:295:29New Moon23Sun
24Mon8:082.98:232.81:47-0.22:11-0.36:285:30New Moon24Mon
25Tue8:402.88:552.82:16-0.22:34-0.36:275:31Waxing Crescent25Tue
26Wed9:112.79:262.72:44-0.12:57-0.26:255:32Waxing Crescent26Wed
27Thu9:432.59:582.63:150.03:24-0.16:245:34Waxing Crescent27Thu
28Fri10:192.410:342.53:490.13:560.06:225:35Waxing Crescent28Fri
29Sat10:592.211:152.54:290.34:340.16:205:36Waxing Crescent29Sat
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 7:12 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 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