Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 9:10 pm (0.6 ft)
Next high tide : in 3h 12m at 2:30 pm (3.2 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:21 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jul 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:482.47:063.11:070.512:080.45:178:23Waning Crescent1Wed
2Thu7:292.57:443.21:500.412:550.35:188:22New Moon2Thu
3Fri8:082.68:213.32:310.31:400.25:188:22New Moon3Fri
4Sat8:482.88:593.33:070.22:230.25:198:22New Moon4Sat
5Sun9:282.99:373.33:390.23:050.25:208:22Waxing Crescent5Sun
6Mon10:092.910:183.34:060.13:470.25:208:21Waxing Crescent6Mon
7Tue10:533.011:013.24:320.14:310.35:218:21Waxing Crescent7Tue
8Wed11:403.111:483.05:040.15:210.45:228:21Waxing Crescent8Wed
9Thu12:303.25:440.16:210.55:228:20First Quarter9Thu
10Fri12:402.91:233.36:300.17:320.55:238:20First Quarter10Fri
11Sat1:352.82:193.47:230.18:550.55:248:19First Quarter11Sat
12Sun2:362.73:223.48:220.210:160.45:258:19First Quarter12Sun
13Mon3:452.64:313.59:290.111:230.25:258:18Waxing Gibbous13Mon
14Tue4:562.75:363.710:440.15:268:18Waxing Gibbous14Tue
15Wed6:002.96:353.812:220.111:53 AM0.05:278:17Waxing Gibbous15Wed
16Thu6:583.17:293.91:16-0.112:55-0.15:288:16Full Moon16Thu
17Fri7:513.28:203.92:06-0.21:52-0.25:298:16Full Moon17Fri
18Sat8:423.49:083.82:52-0.22:45-0.25:298:15Full Moon18Sat
19Sun9:303.49:533.73:33-0.23:32-0.15:308:14Waning Gibbous19Sun
20Mon10:173.410:373.44:10-0.24:170.15:318:14Waning Gibbous20Mon
21Tue11:033.311:203.14:440.05:010.35:328:13Waning Gibbous21Tue
22Wed11:493.25:140.15:490.55:338:12Waning Gibbous22Wed
23Thu12:042.912:343.05:430.36:470.75:348:11Third Quarter23Thu
24Fri12:482.61:182.96:170.47:520.85:358:10Third Quarter24Fri
25Sat1:332.42:032.86:590.68:590.95:368:09Third Quarter25Sat
26Sun2:222.22:542.77:460.710:050.95:378:08Third Quarter26Sun
27Mon3:212.14:002.78:410.711:040.85:378:07Waning Crescent27Mon
28Tue4:322.15:072.89:460.711:560.75:388:06Waning Crescent28Tue
29Wed5:312.25:592.910:530.65:398:05Waning Crescent29Wed
30Thu6:182.46:403.112:420.611:50 AM0.55:408:04Waning Crescent30Thu
31Fri7:002.67:193.21:240.412:390.35:418:03New Moon31Fri
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 5:50 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 neap phase. Tonight's moon is 41% 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 minimum.

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 Third Quarter (41% illuminated). This places Block Island, RI in a neap tide cycle, so tidal ranges are near their weekly minimum 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