Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Block Island, RI.
Next low tide (tomorrow) : in 5h 28m at 3:57 am (-0.3 ft)
Next high tide (tomorrow) : 9:50 am (3.5 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:26 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Feb 2075

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:343.07:572.61:04-0.32:08-0.26:565:02Full Moon1Fri
2Sat8:093.08:342.71:41-0.32:33-0.36:555:04Full Moon2Sat
3Sun8:463.09:142.82:18-0.32:56-0.36:545:05Waning Gibbous3Sun
4Mon9:262.99:572.82:57-0.33:25-0.36:535:06Waning Gibbous4Mon
5Tue10:092.810:442.83:39-0.24:00-0.36:525:07Waning Gibbous5Tue
6Wed10:582.611:352.84:27-0.14:43-0.26:515:09Waning Gibbous6Wed
7Thu11:522.55:260.15:34-0.16:505:10Third Quarter7Thu
8Fri12:312.912:512.46:420.16:33-0.16:485:11Third Quarter8Fri
9Sat1:332.91:582.38:210.17:43-0.16:475:12Third Quarter9Sat
10Sun2:433.03:122.39:420.09:08-0.16:465:14Waning Crescent10Sun
11Mon3:553.14:232.510:45-0.210:27-0.36:455:15Waning Crescent11Mon
12Tue4:593.35:222.811:39-0.411:29-0.56:445:16Waning Crescent12Tue
13Wed5:543.56:163.012:29-0.66:425:17New Moon13Wed
14Thu6:453.67:053.212:24-0.61:15-0.76:415:19New Moon14Thu
15Fri7:333.67:533.31:15-0.71:56-0.76:405:20New Moon15Fri
16Sat8:183.58:383.32:02-0.72:33-0.76:385:21New Moon16Sat
17Sun9:023.39:233.22:44-0.63:06-0.66:375:22Waxing Crescent17Sun
18Mon9:453.010:063.03:24-0.43:35-0.46:365:24Waxing Crescent18Mon
19Tue10:282.710:512.84:03-0.14:03-0.26:345:25Waxing Crescent19Tue
20Wed11:122.411:362.64:470.14:360.06:335:26Waxing Crescent20Wed
21Thu11:592.25:440.35:160.26:315:27First Quarter21Thu
22Fri12:222.412:491.97:070.56:040.46:305:28First Quarter22Fri
23Sat1:132.21:491.88:260.67:020.56:285:30First Quarter23Sat
24Sun2:202.23:051.89:330.58:160.56:275:31First Quarter24Sun
25Mon3:442.24:131.910:280.49:430.46:255:32Waxing Gibbous25Mon
26Tue4:422.45:012.111:150.310:420.26:245:33Waxing Gibbous26Tue
27Wed5:242.55:412.311:560.111:290.06:225:34Waxing Gibbous27Wed
28Thu6:002.76:182.512:33-0.16:215:35Waxing Gibbous28Thu
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 6:53 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 2% 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 (2% 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