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 2h 50m at 4:29 am (0.3 ft)
Next high tide : 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 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:002.55:152.111:220.211:000.26:575:02Waning Crescent1Tue
2Wed5:422.75:552.212:040.16:565:03Waning Crescent2Wed
3Thu6:202.86:322.412:43-0.16:555:04New Moon3Thu
4Fri6:542.97:062.512:21-0.11:19-0.26:545:05New Moon4Fri
5Sat7:273.07:412.612:58-0.21:51-0.36:535:07New Moon5Sat
6Sun8:013.08:172.71:33-0.32:18-0.36:525:08New Moon6Sun
7Mon8:363.08:542.82:07-0.32:43-0.36:515:09Waxing Crescent7Mon
8Tue9:132.99:352.82:42-0.23:10-0.36:505:10Waxing Crescent8Tue
9Wed9:552.810:192.83:21-0.13:43-0.36:485:12Waxing Crescent9Wed
10Thu10:412.711:082.84:050.04:23-0.36:475:13Waxing Crescent10Thu
11Fri11:332.54:570.15:11-0.26:465:14First Quarter11Fri
12Sat12:012.812:302.46:040.26:07-0.16:455:15First Quarter12Sat
13Sun1:002.81:332.37:430.27:12-0.16:435:17First Quarter13Sun
14Mon2:072.92:452.39:190.18:28-0.16:425:18Waxing Gibbous14Mon
15Tue3:213.03:572.510:25-0.19:51-0.36:415:19Waxing Gibbous15Tue
16Wed4:303.25:002.711:21-0.310:59-0.56:405:20Waxing Gibbous16Wed
17Thu5:293.45:553.012:11-0.56:385:22Waxing Gibbous17Thu
18Fri6:223.66:463.212:59-0.76:375:23Full Moon18Fri
19Sat7:113.67:353.412:51-0.81:42-0.86:355:24Full Moon19Sat
20Sun7:583.68:213.41:40-0.82:21-0.76:345:25Full Moon20Sun
21Mon8:423.49:073.32:24-0.72:57-0.66:335:26Waning Gibbous21Mon
22Tue9:263.19:523.23:06-0.53:28-0.56:315:28Waning Gibbous22Tue
23Wed10:092.810:373.03:46-0.33:55-0.36:305:29Waning Gibbous23Wed
24Thu10:532.511:242.74:280.04:240.06:285:30Waning Gibbous24Thu
25Fri11:392.25:180.25:000.26:275:31Third Quarter25Fri
26Sat12:132.512:272.06:270.45:460.36:255:32Third Quarter26Sat
27Sun1:052.31:221.97:490.56:420.56:245:33Third Quarter27Sun
28Mon2:092.22:351.89:020.57:590.56:225:35Third Quarter28Mon
29Tue3:282.23:521.910:030.59:410.56:215:36Waning Crescent29Tue
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 7:31 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 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