Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 15, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 4h 49m at 2:00 pm (-0.4 ft)
Next high tide : 8:44 pm (4.2 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:12 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jul 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:222.95:510.26:140.65:178:23Waning Gibbous1Sun
2Mon12:342.81:072.86:240.47:190.85:188:22Third Quarter2Mon
3Tue1:182.51:512.87:000.58:260.85:188:22Third Quarter3Tue
4Wed2:022.32:362.77:410.69:310.95:198:22Third Quarter4Wed
5Thu2:532.23:292.78:270.610:320.85:198:22Third Quarter5Thu
6Fri3:542.24:292.89:200.611:270.75:208:21Waning Crescent6Fri
7Sat4:582.25:242.910:180.65:218:21Waning Crescent7Sat
8Sun5:502.36:113.112:160.611:15 AM0.55:218:21Waning Crescent8Sun
9Mon6:362.56:543.21:020.412:060.35:228:20Waning Crescent9Mon
10Tue7:192.77:363.41:450.312:540.25:238:20New Moon10Tue
11Wed8:022.98:173.52:240.21:410.15:238:19New Moon11Wed
12Thu8:453.09:003.63:000.12:280.05:248:19New Moon12Thu
13Fri9:303.29:433.53:320.03:140.05:258:18Waxing Crescent13Fri
14Sat10:153.310:283.54:02-0.14:000.05:268:18Waxing Crescent14Sat
15Sun11:033.411:163.34:35-0.14:500.15:278:17Waxing Crescent15Sun
16Mon11:553.45:14-0.15:470.25:278:17Waxing Crescent16Mon
17Tue12:073.112:483.55:590.07:000.45:288:16First Quarter17Tue
18Wed1:022.91:453.56:510.18:230.45:298:15First Quarter18Wed
19Thu2:012.82:463.57:490.19:420.45:308:15First Quarter19Thu
20Fri3:062.73:543.58:570.210:510.35:318:14Waxing Gibbous20Fri
21Sat4:172.75:033.510:160.211:500.25:328:13Waxing Gibbous21Sat
22Sun5:262.86:043.611:280.15:338:12Waxing Gibbous22Sun
23Mon6:242.96:583.712:440.112:280.15:338:11Waxing Gibbous23Mon
24Tue7:173.17:473.71:330.01:230.05:348:10Full Moon24Tue
25Wed8:063.28:323.72:170.02:120.05:358:10Full Moon25Wed
26Thu8:533.39:153.62:57-0.12:550.05:368:09Full Moon26Thu
27Fri9:363.39:553.43:31-0.13:330.15:378:08Waning Gibbous27Fri
28Sat10:183.210:333.24:010.04:090.35:388:07Waning Gibbous28Sat
29Sun10:583.111:113.04:260.14:430.45:398:06Waning Gibbous29Sun
30Mon11:373.011:512.74:520.25:220.65:408:05Waning Gibbous30Mon
31Tue12:162.95:240.46:090.75:418:03Third Quarter31Tue
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 5:22 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 0% 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 (0% 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