Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 15, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 30m at 2:00 pm (-0.4 ft)
Next high tide : 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 - Oct 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:532.32:112.77:270.89:440.86:436:28Third Quarter1Mon
2Tue2:572.43:182.88:440.710:330.66:446:26Third Quarter2Tue
3Wed4:042.74:253.010:060.511:130.46:456:24Waning Crescent3Wed
4Thu5:033.05:233.211:130.311:500.16:466:23Waning Crescent4Thu
5Fri5:553.46:153.412:070.06:476:21Waning Crescent5Fri
6Sat6:433.87:033.612:27-0.112:58-0.36:486:19New Moon6Sat
7Sun7:304.17:523.61:05-0.31:48-0.46:496:18New Moon7Sun
8Mon8:184.38:413.61:46-0.52:39-0.56:506:16New Moon8Mon
9Tue9:074.39:303.52:29-0.53:29-0.46:516:14Waxing Crescent9Tue
10Wed9:584.210:223.33:13-0.44:21-0.36:536:13Waxing Crescent10Wed
11Thu10:514.011:173.14:00-0.25:200.06:546:11Waxing Crescent11Thu
12Fri11:503.74:510.06:340.26:556:10Waxing Crescent12Fri
13Sat12:172.912:543.45:560.37:490.46:566:08First Quarter13Sat
14Sun1:212.82:013.17:430.58:550.56:576:07First Quarter14Sun
15Mon2:282.73:093.09:090.59:540.56:586:05First Quarter15Mon
16Tue3:372.84:152.910:170.510:440.46:596:03Waxing Gibbous16Tue
17Wed4:412.95:112.811:130.511:270.47:006:02Waxing Gibbous17Wed
18Thu5:343.15:572.912:000.47:016:00Waxing Gibbous18Thu
19Fri6:183.26:382.912:020.312:410.37:025:59Waxing Gibbous19Fri
20Sat6:573.37:152.912:310.21:180.37:045:57Full Moon20Sat
21Sun7:323.47:502.912:580.21:520.27:055:56Full Moon21Sun
22Mon8:053.48:252.91:240.12:240.27:065:55Full Moon22Mon
23Tue8:363.38:582.81:530.12:550.27:075:53Full Moon23Tue
24Wed9:073.39:332.72:250.23:240.37:085:52Waning Gibbous24Wed
25Thu9:403.110:102.63:000.23:540.47:095:50Waning Gibbous25Thu
26Fri10:173.010:512.53:360.44:280.57:105:49Waning Gibbous26Fri
27Sat10:592.911:372.44:150.55:080.77:125:48Waning Gibbous27Sat
28Sun11:472.85:000.66:010.77:135:46Third Quarter28Sun
29Mon12:312.412:422.75:530.77:160.77:145:45Third Quarter29Mon
30Tue1:282.41:402.77:000.78:350.67:155:44Third Quarter30Tue
31Wed2:282.62:422.88:190.79:310.57:165:42Third Quarter31Wed
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 5:22 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 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