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 : 2:00 pm (-0.4 ft)
Next high tide : in 32m at 8:21 am (3.2 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 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:153.45:110.26:380.56:436:28First Quarter1Sat
2Sun12:432.71:183.36:090.48:180.66:446:26First Quarter2Sun
3Mon1:482.62:273.27:250.59:360.56:456:25First Quarter3Mon
4Tue2:592.73:423.29:110.510:380.36:466:23First Quarter4Tue
5Wed4:132.84:523.310:390.311:300.26:476:21Waxing Gibbous5Wed
6Thu5:183.15:493.511:420.16:486:20Waxing Gibbous6Thu
7Fri6:123.46:393.512:160.012:350.06:496:18Waxing Gibbous7Fri
8Sat7:013.77:253.612:56-0.11:24-0.16:506:17Full Moon8Sat
9Sun7:463.88:093.51:33-0.22:10-0.26:516:15Full Moon9Sun
10Mon8:293.98:513.42:06-0.22:51-0.16:526:13Full Moon10Mon
11Tue9:103.89:323.22:35-0.23:300.06:536:12Full Moon11Tue
12Wed9:493.610:133.03:040.04:050.26:546:10Waning Gibbous12Wed
13Thu10:283.410:562.73:350.14:390.46:556:09Waning Gibbous13Thu
14Fri11:083.111:422.54:090.35:170.66:576:07Waning Gibbous14Fri
15Sat11:522.84:480.66:190.86:586:05Third Quarter15Sat
16Sun12:342.312:432.65:340.88:020.96:596:04Third Quarter16Sun
17Mon1:312.21:432.56:330.99:130.97:006:02Third Quarter17Mon
18Tue2:352.22:532.47:511.010:100.87:016:01Third Quarter18Tue
19Wed3:452.24:092.59:340.910:560.77:025:59Third Quarter19Wed
20Thu4:452.45:032.610:420.711:340.67:035:58Waning Crescent20Thu
21Fri5:292.75:432.811:320.57:045:56Waning Crescent21Fri
22Sat6:063.06:192.912:050.412:150.37:065:55Waning Crescent22Sat
23Sun6:423.36:553.112:320.212:560.17:075:54New Moon23Sun
24Mon7:183.57:343.112:580.01:36-0.17:085:52New Moon24Mon
25Tue7:573.88:153.21:27-0.12:17-0.27:095:51New Moon25Tue
26Wed8:393.98:593.12:01-0.22:58-0.27:105:49New Moon26Wed
27Thu9:233.99:463.12:39-0.23:40-0.17:115:48Waxing Crescent27Thu
28Fri10:103.810:362.93:20-0.24:260.07:125:47Waxing Crescent28Fri
29Sat11:033.611:312.84:050.05:220.27:145:45Waxing Crescent29Sat
30Sun12:023.44:570.16:440.37:155:44First Quarter30Sun
31Mon12:332.71:073.36:020.38:090.47:165:43First Quarter31Mon
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 11:10 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