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 : in 4h 49m at 2:53 pm (-0.4 ft)
Next high tide : 9:23 pm (4.0 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 - Apr 2074

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:252.311:312.64:550.24:500.26:287:11Waxing Crescent1Sun
2Mon12:082.25:350.45:320.46:267:12Waxing Crescent2Mon
3Tue12:152.512:572.16:270.56:230.56:257:13First Quarter3Tue
4Wed1:062.41:522.07:400.67:230.56:237:14First Quarter4Wed
5Thu2:052.42:552.19:360.68:340.56:217:15First Quarter5Thu
6Fri3:122.54:042.310:370.49:560.46:207:17First Quarter6Fri
7Sat4:252.65:072.611:240.211:110.16:187:18Waxing Gibbous7Sat
8Sun5:282.96:003.012:040.06:167:19Waxing Gibbous8Sun
9Mon6:203.26:483.412:08-0.212:42-0.36:157:20Waxing Gibbous9Mon
10Tue7:093.47:353.71:00-0.41:21-0.56:137:21Full Moon10Tue
11Wed7:573.58:224.01:50-0.72:00-0.76:127:22Full Moon11Wed
12Thu8:463.59:104.12:40-0.82:41-0.76:107:23Full Moon12Thu
13Fri9:353.49:594.03:29-0.83:22-0.76:087:24Waning Gibbous13Fri
14Sat10:253.310:513.94:19-0.64:06-0.56:077:25Waning Gibbous14Sat
15Sun11:183.111:463.65:15-0.44:53-0.36:057:26Waning Gibbous15Sun
16Mon12:152.96:23-0.25:490.06:047:27Third Quarter16Mon
17Tue12:473.31:172.77:380.07:150.26:027:28Third Quarter17Tue
18Wed1:513.12:222.68:480.28:550.36:017:29Third Quarter18Wed
19Thu3:002.93:322.69:520.310:110.45:597:30Third Quarter19Thu
20Fri4:112.74:402.710:480.311:130.35:587:32Waning Crescent20Fri
21Sat5:132.75:372.811:350.25:567:33Waning Crescent21Sat
22Sun6:042.86:243.012:050.212:150.25:557:34Waning Crescent22Sun
23Mon6:472.87:063.112:490.212:490.15:537:35Waning Crescent23Mon
24Tue7:262.87:433.21:280.11:180.05:527:36New Moon24Tue
25Wed8:032.88:173.22:040.01:440.05:517:37New Moon25Wed
26Thu8:382.88:493.22:370.02:100.05:497:38New Moon26Thu
27Fri9:122.89:193.23:080.02:400.05:487:39New Moon27Fri
28Sat9:462.79:513.13:360.13:120.15:467:40Waxing Crescent28Sat
29Sun10:212.610:253.04:050.23:460.25:457:41Waxing Crescent29Sun
30Mon11:002.411:042.84:360.34:230.35:447:42Waxing Crescent30Mon
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 6:08 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 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