Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 4:08 pm (0.5 ft)
Next high tide : in 5h 53m at 10:34 am (2.7 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 - Feb 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:113.47:372.912:39-0.51:47-0.56:575:02Full Moon1Tue
2Wed7:553.48:223.11:25-0.62:21-0.66:565:03Full Moon2Wed
3Thu8:403.49:083.22:10-0.72:55-0.66:555:05Waning Gibbous3Thu
4Fri9:263.39:573.22:57-0.63:31-0.66:535:06Waning Gibbous4Fri
5Sat10:163.110:503.23:46-0.54:11-0.56:525:07Waning Gibbous5Sat
6Sun11:092.911:463.14:44-0.34:58-0.46:515:08Third Quarter6Sun
7Mon12:062.66:00-0.15:54-0.26:505:10Third Quarter7Mon
8Tue12:463.01:072.47:310.07:02-0.16:495:11Third Quarter8Tue
9Wed1:513.02:162.38:510.08:280.06:485:12Third Quarter9Wed
10Thu3:042.93:302.39:590.09:48-0.16:475:13Waning Crescent10Thu
11Fri4:133.04:362.410:57-0.110:51-0.26:455:15Waning Crescent11Fri
12Sat5:113.15:312.611:48-0.211:44-0.36:445:16Waning Crescent12Sat
13Sun6:023.26:202.712:33-0.36:435:17New Moon13Sun
14Mon6:483.27:052.912:31-0.31:13-0.46:425:18New Moon14Mon
15Tue7:303.27:472.91:13-0.41:48-0.46:405:19New Moon15Tue
16Wed8:093.18:262.91:49-0.42:18-0.46:395:21New Moon16Wed
17Thu8:453.09:022.82:20-0.32:43-0.36:385:22Waxing Crescent17Thu
18Fri9:202.89:382.72:49-0.23:06-0.36:365:23Waxing Crescent18Fri
19Sat9:542.610:122.63:200.03:33-0.16:355:24Waxing Crescent19Sat
20Sun10:302.410:482.53:540.14:040.06:335:26Waxing Crescent20Sun
21Mon11:102.211:272.44:350.34:420.16:325:27First Quarter21Mon
22Tue11:542.05:250.45:260.36:305:28First Quarter22Tue
23Wed12:112.312:431.96:310.56:180.46:295:29First Quarter23Wed
24Thu1:022.31:421.88:310.67:190.46:285:30First Quarter24Thu
25Fri2:052.32:541.99:440.58:290.36:265:32First Quarter25Fri
26Sat3:202.44:032.110:380.39:440.26:255:33Waxing Gibbous26Sat
27Sun4:262.74:572.411:230.110:46-0.16:235:34Waxing Gibbous27Sun
28Mon5:183.05:442.712:03-0.26:225:35Waxing Gibbous28Mon
29Tue6:053.26:303.012:41-0.46:205:36Full Moon29Tue
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 1:21 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