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 1h 06m 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 - Jul 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:343.111:563.25:300.05:210.35:178:23Waning Gibbous1Sat
2Sun12:262.96:170.26:250.55:188:22Waning Gibbous2Sun
3Mon12:452.91:182.87:030.37:350.75:198:22Third Quarter3Mon
4Tue1:342.72:082.87:440.58:390.85:198:22Third Quarter4Tue
5Wed2:222.53:002.78:200.59:400.85:208:22Third Quarter5Wed
6Thu3:152.43:552.79:000.610:370.85:208:21Third Quarter6Thu
7Fri4:152.34:502.89:450.611:280.75:218:21Waning Crescent7Fri
8Sat5:122.35:372.910:340.55:228:21Waning Crescent8Sat
9Sun5:592.46:183.112:150.611:22 AM0.55:228:20Waning Crescent9Sun
10Mon6:422.56:573.21:000.412:070.35:238:20Waning Crescent10Mon
11Tue7:222.67:353.31:430.312:510.25:248:19New Moon11Tue
12Wed8:022.88:153.42:240.21:350.25:258:19New Moon12Wed
13Thu8:432.98:563.53:010.12:190.15:258:18New Moon13Thu
14Fri9:253.09:373.53:340.13:020.15:268:18New Moon14Fri
15Sat10:093.010:213.44:050.13:460.15:278:17Waxing Crescent15Sat
16Sun10:563.111:083.34:360.14:320.25:288:16Waxing Crescent16Sun
17Mon11:463.211:583.25:140.15:250.35:298:16Waxing Crescent17Mon
18Tue12:393.25:580.16:280.45:298:15First Quarter18Tue
19Wed12:523.11:353.36:500.17:460.45:308:14First Quarter19Wed
20Thu1:492.92:333.47:460.19:120.45:318:13First Quarter20Thu
21Fri2:512.83:373.58:470.110:280.35:328:13First Quarter21Fri
22Sat3:592.84:443.69:550.111:310.25:338:12Waxing Gibbous22Sat
23Sun5:082.95:463.711:050.15:348:11Waxing Gibbous23Sun
24Mon6:093.06:423.812:280.012:060.05:358:10Waxing Gibbous24Mon
25Tue7:043.17:343.91:21-0.11:03-0.15:368:09Full Moon25Tue
26Wed7:563.38:243.92:10-0.21:56-0.15:378:08Full Moon26Wed
27Thu8:453.39:113.82:55-0.22:45-0.15:388:07Full Moon27Thu
28Fri9:323.39:553.63:35-0.13:290.05:398:06Waning Gibbous28Fri
29Sat10:183.310:393.44:12-0.14:100.25:408:05Waning Gibbous29Sat
30Sun11:033.111:213.14:460.14:490.35:408:04Waning Gibbous30Sun
31Mon11:483.05:160.25:330.55:418:03Waning Gibbous31Mon
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