Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 1h 46m at 2:51 pm (0.4 ft)
Next high tide : 9:33 pm (3.2 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:17 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Apr 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:053.27:283.51:01-0.31:25-0.46:287:11Full Moon1Tue
2Wed7:503.28:123.61:48-0.42:03-0.46:267:12Full Moon2Wed
3Thu8:323.28:543.52:29-0.42:35-0.46:247:13Full Moon3Thu
4Fri9:123.19:343.43:07-0.43:02-0.36:237:14Full Moon4Fri
5Sat9:512.910:123.23:40-0.33:27-0.26:217:16Waning Gibbous5Sat
6Sun10:302.710:493.04:10-0.13:550.06:197:17Waning Gibbous6Sun
7Mon11:092.511:282.84:420.14:280.26:187:18Waning Gibbous7Mon
8Tue11:512.35:180.35:070.46:167:19Waning Gibbous8Tue
9Wed12:102.612:362.26:060.45:530.56:157:20Third Quarter9Wed
10Thu12:562.41:262.17:140.66:500.76:137:21Third Quarter10Thu
11Fri1:492.32:222.18:460.68:010.76:117:22Third Quarter11Fri
12Sat2:502.33:262.19:540.69:470.76:107:23Third Quarter12Sat
13Sun4:012.34:332.310:460.510:590.56:087:24Waning Crescent13Sun
14Mon5:022.55:252.611:280.311:500.36:077:25Waning Crescent14Mon
15Tue5:502.76:092.912:040.16:057:26Waning Crescent15Tue
16Wed6:332.96:503.212:340.012:37-0.16:047:27Waning Crescent16Wed
17Thu7:153.17:333.51:17-0.21:12-0.36:027:28New Moon17Thu
18Fri7:593.28:163.72:00-0.41:49-0.56:017:29New Moon18Fri
19Sat8:443.39:023.92:42-0.52:29-0.55:597:31New Moon19Sat
20Sun9:313.39:493.93:25-0.53:10-0.55:587:32Waxing Crescent20Sun
21Mon10:203.210:393.84:10-0.43:55-0.45:567:33Waxing Crescent21Mon
22Tue11:123.111:333.65:01-0.34:43-0.35:557:34Waxing Crescent22Tue
23Wed12:093.06:06-0.15:39-0.15:537:35Waxing Crescent23Wed
24Thu12:323.41:102.97:260.06:520.15:527:36First Quarter24Thu
25Fri1:343.22:142.98:380.18:320.25:507:37First Quarter25Fri
26Sat2:413.03:222.99:420.19:560.25:497:38First Quarter26Sat
27Sun3:522.94:303.010:390.111:020.15:487:39Waxing Gibbous27Sun
28Mon4:582.95:293.211:300.011:580.05:467:40Waxing Gibbous28Mon
29Tue5:542.96:213.412:140.05:457:41Waxing Gibbous29Tue
30Wed6:432.97:073.512:470.012:53-0.15:447:42Waxing Gibbous30Wed
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 6:12 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 97% 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 Full Moon (97% 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