Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 1m at 4:08 pm (0.5 ft)
Next high tide : 10:46 pm (3.0 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:18 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jan 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:353.87:013.212:00-0.61:15-0.77:114:27Full Moon1Fri
2Sat7:253.87:513.212:50-0.72:02-0.77:114:28Full Moon2Sat
3Sun8:133.78:393.11:39-0.62:46-0.67:114:29Full Moon3Sun
4Mon9:003.59:273.02:24-0.53:28-0.57:114:30Waning Gibbous4Mon
5Tue9:463.210:172.93:07-0.34:10-0.37:114:31Waning Gibbous5Tue
6Wed10:332.911:072.73:50-0.14:53-0.17:114:32Waning Gibbous6Wed
7Thu11:212.64:390.25:380.17:114:33Third Quarter7Thu
8Fri12:002.512:092.35:420.46:240.27:114:34Third Quarter8Fri
9Sat12:522.412:582.17:030.57:100.37:114:35Third Quarter9Sat
10Sun1:472.31:542.08:160.57:590.47:114:36Third Quarter10Sun
11Mon2:482.33:001.99:200.58:550.47:104:37Waning Crescent11Mon
12Tue3:472.44:021.910:140.49:470.37:104:38Waning Crescent12Tue
13Wed4:372.64:512.111:020.210:330.27:104:39Waning Crescent13Wed
14Thu5:182.75:322.211:460.111:140.07:094:40Waning Crescent14Thu
15Fri5:562.96:092.412:27-0.17:094:41Waning Crescent15Fri
16Sat6:323.06:472.51:05-0.27:094:42New Moon16Sat
17Sun7:093.17:262.612:33-0.21:40-0.37:084:44New Moon17Sun
18Mon7:483.28:072.71:13-0.32:12-0.47:084:45New Moon18Mon
19Tue8:283.28:492.81:52-0.42:42-0.47:074:46Waxing Crescent19Tue
20Wed9:113.29:352.92:33-0.33:14-0.47:064:47Waxing Crescent20Wed
21Thu9:563.110:232.93:16-0.33:52-0.47:064:48Waxing Crescent21Thu
22Fri10:462.911:162.94:05-0.14:36-0.37:054:50Waxing Crescent22Fri
23Sat11:402.75:040.05:27-0.37:054:51First Quarter23Sat
24Sun12:132.912:382.66:240.16:26-0.27:044:52First Quarter24Sun
25Mon1:132.91:422.58:070.17:32-0.27:034:53First Quarter25Mon
26Tue2:203.02:532.49:270.08:49-0.27:024:54Waxing Gibbous26Tue
27Wed3:323.14:032.510:30-0.210:03-0.37:014:56Waxing Gibbous27Wed
28Thu4:373.25:042.711:25-0.311:04-0.47:014:57Waxing Gibbous28Thu
29Fri5:343.45:582.912:16-0.57:004:58Waxing Gibbous29Fri
30Sat6:253.56:483.01:03-0.66:594:59Full Moon30Sat
31Sun7:133.57:353.112:47-0.61:46-0.66:585:01Full Moon31Sun
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 7:27 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 88% 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 Waning Gibbous (88% 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