Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 15, 2026
The tide is currently rising in Block Island, RI.
Next low tide (tomorrow) : 3:28 am (-0.4 ft)
Next high tide : in 5h 50m at 8:44 pm (4.2 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:12 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - May 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:482.89:033.42:53-0.12:17-0.15:437:43New Moon1Sun
2Mon9:272.79:373.23:250.02:470.05:427:44New Moon2Mon
3Tue10:052.610:103.03:550.13:210.25:407:45Waxing Crescent3Tue
4Wed10:442.510:462.94:250.33:570.35:397:46Waxing Crescent4Wed
5Thu11:262.311:262.75:000.44:370.55:387:47Waxing Crescent5Thu
6Fri12:122.25:470.65:220.65:377:48Waxing Crescent6Fri
7Sat12:122.51:022.17:050.76:170.75:367:49First Quarter7Sat
8Sun1:042.51:562.18:270.77:250.85:347:50First Quarter8Sun
9Mon2:002.42:542.29:240.78:440.85:337:51First Quarter9Mon
10Tue3:012.43:552.410:100.610:080.65:327:52First Quarter10Tue
11Wed4:062.54:512.710:470.411:110.45:317:53Waxing Gibbous11Wed
12Thu5:052.65:393.111:210.25:307:54Waxing Gibbous12Thu
13Fri5:562.86:243.512:020.111:56 AM0.05:297:55Waxing Gibbous13Fri
14Sat6:443.07:093.812:50-0.112:34-0.25:287:56Full Moon14Sat
15Sun7:323.17:564.01:39-0.31:16-0.35:277:57Full Moon15Sun
16Mon8:213.18:444.12:27-0.42:01-0.45:267:58Full Moon16Mon
17Tue9:113.19:354.13:16-0.52:48-0.45:257:59Full Moon17Tue
18Wed10:023.110:273.94:05-0.43:37-0.35:248:00Waning Gibbous18Wed
19Thu10:563.011:243.75:00-0.24:29-0.15:248:01Waning Gibbous19Thu
20Fri11:542.96:03-0.15:310.15:238:02Waning Gibbous20Fri
21Sat12:243.512:562.97:120.17:010.35:228:03Third Quarter21Sat
22Sun1:273.21:592.98:160.28:330.45:218:04Third Quarter22Sun
23Mon2:303.03:042.99:130.29:480.45:208:05Third Quarter23Mon
24Tue3:342.84:093.010:060.210:520.35:208:06Waning Crescent24Tue
25Wed4:362.75:083.210:520.211:470.35:198:07Waning Crescent25Wed
26Thu5:312.75:593.311:310.25:188:07Waning Crescent26Thu
27Fri6:192.66:433.412:350.312:050.25:188:08Waning Crescent27Fri
28Sat7:032.77:243.41:180.212:360.25:178:09New Moon28Sat
29Sun7:442.78:023.41:580.21:080.25:178:10New Moon29Sun
30Mon8:252.78:383.32:350.21:430.25:168:11New Moon30Mon
31Tue9:042.79:123.23:090.22:200.25:168:11New 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 12:06 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 0% 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 (0% 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