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 32m 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 - May 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:273.07:503.51:32-0.11:28-0.15:427:43Full Moon1Thu
2Fri8:093.08:303.52:12-0.11:59-0.15:417:44Full Moon2Fri
3Sat8:482.99:083.42:48-0.12:260.05:407:45Full Moon3Sat
4Sun9:262.89:443.33:210.02:540.15:397:47Full Moon4Sun
5Mon10:042.710:193.13:510.03:260.25:377:48Waning Gibbous5Mon
6Tue10:422.610:562.94:210.24:010.35:367:49Waning Gibbous6Tue
7Wed11:222.511:352.84:560.34:400.55:357:50Waning Gibbous7Wed
8Thu12:062.45:390.45:250.65:347:51Waning Gibbous8Thu
9Fri12:192.612:532.36:320.56:190.75:337:52Third Quarter9Fri
10Sat1:082.51:432.37:340.67:230.85:327:53Third Quarter10Sat
11Sun2:002.52:372.48:340.68:420.75:317:54Third Quarter11Sun
12Mon2:582.53:362.69:300.510:120.65:307:55Third Quarter12Mon
13Tue4:012.54:352.810:200.311:140.45:297:56Waning Crescent13Tue
14Wed5:022.75:293.211:050.15:287:57Waning Crescent14Wed
15Thu5:552.96:173.512:040.111:48 AM-0.15:277:58Waning Crescent15Thu
16Fri6:453.17:053.812:52-0.112:32-0.35:267:59New Moon16Fri
17Sat7:343.37:544.01:41-0.31:18-0.45:258:00New Moon17Sat
18Sun8:243.48:434.12:29-0.52:05-0.55:248:01New Moon18Sun
19Mon9:143.49:334.13:18-0.52:54-0.55:238:02New Moon19Mon
20Tue10:063.410:254.04:07-0.53:43-0.45:228:03Waxing Crescent20Tue
21Wed11:003.311:203.85:00-0.34:36-0.25:228:03Waxing Crescent21Wed
22Thu11:573.26:02-0.25:370.05:218:04Waxing Crescent22Thu
23Fri12:193.512:573.27:100.07:010.25:208:05First Quarter23Fri
24Sat1:193.21:593.18:120.18:270.35:198:06First Quarter24Sat
25Sun2:213.03:023.19:110.19:400.35:198:07First Quarter25Sun
26Mon3:252.84:073.110:060.210:440.35:188:08Waxing Gibbous26Mon
27Tue4:302.75:063.210:560.211:390.35:188:09Waxing Gibbous27Tue
28Wed5:282.75:593.311:400.25:178:10Waxing Gibbous28Wed
29Thu6:182.76:453.412:280.312:180.25:168:10Waxing Gibbous29Thu
30Fri7:032.77:273.41:110.212:520.25:168:11Full Moon30Fri
31Sat7:452.88:073.41:510.21:240.25:158:12Full Moon31Sat
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