Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 59m at 11:46 am (0.6 ft)
Next high tide : 6:45 pm (3.0 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 5:36 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Nov 2087

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:482.74:540.65:540.77:175:41Waxing Crescent1Sat
2Sun12:192.411:39 AM2.74:450.75:560.76:194:40First Quarter2Sun
3Mon12:132.412:352.65:480.87:050.66:204:39First Quarter3Mon
4Tue1:102.51:342.77:050.78:060.56:214:38First Quarter4Tue
5Wed2:102.72:382.78:380.68:590.36:224:37Waxing Gibbous5Wed
6Thu3:133.03:412.99:490.39:480.16:234:35Waxing Gibbous6Thu
7Fri4:103.44:383.110:450.010:34-0.26:254:34Waxing Gibbous7Fri
8Sat5:023.75:303.311:35-0.211:19-0.46:264:33Waxing Gibbous8Sat
9Sun5:524.06:203.412:26-0.46:274:32Full Moon9Sun
10Mon6:424.27:113.512:06-0.61:16-0.66:284:31Full Moon10Mon
11Tue7:334.38:023.512:54-0.62:07-0.66:294:30Full Moon11Tue
12Wed8:244.28:543.41:43-0.62:58-0.56:314:29Waning Gibbous12Wed
13Thu9:174.09:483.32:33-0.53:52-0.36:324:28Waning Gibbous13Thu
14Fri10:123.710:463.13:26-0.24:55-0.16:334:28Waning Gibbous14Fri
15Sat11:123.411:473.04:270.06:030.16:344:27Third Quarter15Sat
16Sun12:133.15:560.37:070.26:354:26Third Quarter16Sun
17Mon12:502.91:162.87:220.48:050.36:364:25Third Quarter17Mon
18Tue1:542.92:192.68:320.48:570.36:384:24Third Quarter18Tue
19Wed2:572.93:222.59:330.49:440.36:394:24Waning Crescent19Wed
20Thu3:553.04:172.510:250.410:240.36:404:23Waning Crescent20Thu
21Fri4:453.15:032.511:090.310:590.26:414:22Waning Crescent21Fri
22Sat5:283.25:442.611:480.211:290.26:424:22Waning Crescent22Sat
23Sun6:073.26:212.612:250.26:434:21New Moon23Sun
24Mon6:433.26:572.71:000.16:454:21New Moon24Mon
25Tue7:173.27:322.712:290.11:350.16:464:20New Moon25Tue
26Wed7:503.28:072.61:020.12:070.16:474:20New Moon26Wed
27Thu8:233.18:432.61:380.12:380.16:484:19Waxing Crescent27Thu
28Fri8:593.09:222.52:140.23:090.26:494:19Waxing Crescent28Fri
29Sat9:372.910:042.52:510.33:420.36:504:18Waxing Crescent29Sat
30Sun10:202.810:512.53:330.44:220.36:514:18Waxing Crescent30Sun
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 3:15 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 92% 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 Waxing Gibbous (92% 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