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 6h 09m 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 - Mar 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:452.05:170.45:180.26:195:37First Quarter1Sun
2Mon12:022.412:371.96:190.56:120.36:175:38First Quarter2Mon
3Tue12:572.41:391.98:020.57:150.36:165:39First Quarter3Tue
4Wed2:042.52:522.09:380.48:290.26:145:41First Quarter4Wed
5Thu3:202.64:022.310:340.29:470.06:135:42Waxing Gibbous5Thu
6Fri4:282.95:002.611:21-0.110:53-0.36:115:43Waxing Gibbous6Fri
7Sat5:243.25:513.012:04-0.46:095:44Waxing Gibbous7Sat
8Sun7:143.57:403.31:46-0.67:086:45Full Moon8Sun
9Mon8:033.68:283.61:43-0.82:25-0.87:066:46Full Moon9Mon
10Tue8:513.79:163.82:35-0.93:04-0.87:046:47Full Moon10Tue
11Wed9:383.510:043.83:25-0.93:41-0.87:036:48Waning Gibbous11Wed
12Thu10:273.310:543.74:15-0.84:19-0.77:016:50Waning Gibbous12Thu
13Fri11:173.011:473.55:08-0.64:59-0.56:596:51Waning Gibbous13Fri
14Sat12:112.76:13-0.35:46-0.26:586:52Third Quarter14Sat
15Sun12:453.21:102.47:300.06:440.16:566:53Third Quarter15Sun
16Mon1:473.02:132.28:460.28:160.36:556:54Third Quarter16Mon
17Tue2:572.73:252.19:570.39:540.46:536:55Third Quarter17Tue
18Wed4:132.64:392.210:590.311:040.36:516:56Waning Crescent18Wed
19Thu5:192.65:392.311:500.311:590.26:496:57Waning Crescent19Thu
20Fri6:122.76:282.512:330.26:486:58Waning Crescent20Fri
21Sat6:562.87:102.712:440.11:090.16:466:59Waning Crescent21Sat
22Sun7:342.87:482.91:230.01:41-0.16:447:01New Moon22Sun
23Mon8:082.98:223.01:58-0.12:09-0.16:437:02New Moon23Mon
24Tue8:402.98:533.02:30-0.12:33-0.26:417:03New Moon24Tue
25Wed9:112.89:223.03:00-0.12:56-0.26:397:04New Moon25Wed
26Thu9:422.79:523.03:28-0.13:21-0.16:387:05Waxing Crescent26Thu
27Fri10:142.610:242.93:560.03:50-0.16:367:06Waxing Crescent27Fri
28Sat10:502.411:002.84:270.14:220.16:347:07Waxing Crescent28Sat
29Sun11:312.311:422.75:030.34:590.26:337:08Waxing Crescent29Sun
30Mon12:182.25:460.45:440.36:317:09First Quarter30Mon
31Tue12:312.61:122.16:430.56:400.46:297:10First Quarter31Tue
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