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 2h 52m 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 - Mar 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:283.46:483.212:13-0.512:55-0.66:205:37New Moon1Tue
2Wed7:153.57:343.31:03-0.61:35-0.66:185:38New Moon2Wed
3Thu7:583.48:183.41:48-0.62:09-0.66:165:39New Moon3Thu
4Fri8:403.28:593.32:30-0.52:39-0.66:155:40Waxing Crescent4Fri
5Sat9:203.09:403.13:07-0.43:04-0.46:135:41Waxing Crescent5Sat
6Sun10:002.710:202.93:43-0.23:31-0.26:125:42Waxing Crescent6Sun
7Mon10:422.411:002.74:190.14:010.06:105:43Waxing Crescent7Mon
8Tue11:262.111:422.55:010.34:380.26:085:45First Quarter8Tue
9Wed12:141.96:030.55:240.46:075:46First Quarter9Wed
10Thu12:282.31:101.87:450.66:200.56:055:47First Quarter10Thu
11Fri1:282.12:231.79:050.67:310.66:045:48First Quarter11Fri
12Sat3:012.13:441.810:060.69:120.56:025:49Waxing Gibbous12Sat
13Sun5:192.35:392.011:550.411:240.47:006:50Waxing Gibbous13Sun
14Mon6:052.56:212.312:360.26:596:51Waxing Gibbous14Mon
15Tue6:422.76:582.512:140.11:110.16:576:52Waxing Gibbous15Tue
16Wed7:152.97:342.812:57-0.11:43-0.16:556:53Full Moon16Wed
17Thu7:503.08:113.11:38-0.32:10-0.36:546:55Full Moon17Thu
18Fri8:263.18:493.32:17-0.42:35-0.46:526:56Full Moon18Fri
19Sat9:053.19:293.42:56-0.53:02-0.56:506:57Full Moon19Sat
20Sun9:463.010:113.53:35-0.53:33-0.56:496:58Waning Gibbous20Sun
21Mon10:302.910:573.44:16-0.44:09-0.46:476:59Waning Gibbous21Mon
22Tue11:192.711:483.35:02-0.24:50-0.36:457:00Waning Gibbous22Tue
23Wed12:132.55:580.05:40-0.16:447:01Third Quarter23Wed
24Thu12:453.11:142.47:190.16:410.16:427:02Third Quarter24Thu
25Fri1:503.02:202.38:530.28:040.26:407:03Third Quarter25Fri
26Sat3:032.93:362.410:100.210:000.26:397:04Third Quarter26Sat
27Sun4:212.94:512.611:110.111:180.06:377:05Waning Crescent27Sun
28Mon5:293.05:522.812:03-0.16:357:06Waning Crescent28Mon
29Tue6:233.16:433.112:16-0.212:47-0.26:337:08Waning Crescent29Tue
30Wed7:103.27:303.31:07-0.31:27-0.46:327:09New Moon30Wed
31Thu7:543.28:133.51:53-0.42:01-0.46:307:10New Moon31Thu
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