Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 5:39 pm (0.6 ft)
Next high tide : in 47m at 11:59 am (2.8 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Feb 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:423.37:012.812:04-0.41:17-0.56:575:02New Moon1Sun
2Mon7:273.57:473.012:54-0.61:55-0.66:565:03New Moon2Mon
3Tue8:133.58:343.21:43-0.72:31-0.76:555:05New Moon3Tue
4Wed8:593.49:233.32:31-0.73:07-0.76:535:06Waxing Crescent4Wed
5Thu9:473.210:133.33:21-0.63:45-0.66:525:07Waxing Crescent5Thu
6Fri10:373.011:063.24:16-0.44:26-0.56:515:08Waxing Crescent6Fri
7Sat11:312.75:26-0.25:12-0.36:505:10First Quarter7Sat
8Sun12:033.112:292.46:520.06:07-0.26:495:11First Quarter8Sun
9Mon1:043.01:332.28:140.17:130.06:485:12First Quarter9Mon
10Tue2:132.82:462.19:270.18:400.16:475:13Waxing Gibbous10Tue
11Wed3:302.83:582.110:300.110:020.16:455:15Waxing Gibbous11Wed
12Thu4:382.84:592.311:240.011:030.06:445:16Waxing Gibbous12Thu
13Fri5:332.95:502.512:11-0.16:435:17Waxing Gibbous13Fri
14Sat6:202.96:362.612:52-0.26:425:18Full Moon14Sat
15Sun7:023.07:182.812:37-0.21:28-0.26:405:19Full Moon15Sun
16Mon7:393.07:572.81:15-0.31:59-0.36:395:21Full Moon16Mon
17Tue8:132.98:332.81:48-0.32:25-0.36:375:22Full Moon17Tue
18Wed8:442.89:072.82:19-0.22:46-0.36:365:23Waning Gibbous18Wed
19Thu9:142.79:402.72:50-0.13:06-0.26:355:24Waning Gibbous19Thu
20Fri9:462.510:122.63:220.03:31-0.16:335:26Waning Gibbous20Fri
21Sat10:202.310:472.53:580.14:000.16:325:27Waning Gibbous21Sat
22Sun10:592.111:272.44:390.34:360.26:305:28Third Quarter22Sun
23Mon11:441.95:290.45:200.36:295:29Third Quarter23Mon
24Tue12:132.412:361.86:330.56:130.46:275:30Third Quarter24Tue
25Wed1:092.31:371.88:160.67:170.46:265:32Third Quarter25Wed
26Thu2:182.42:531.89:440.48:340.36:245:33Waning Crescent26Thu
27Fri3:382.54:062.110:400.29:570.16:235:34Waning Crescent27Fri
28Sat4:422.85:032.411:270.011:01-0.26:215:35Waning Crescent28Sat
29Sun5:343.15:532.812:08-0.36:205:36Waning Crescent29Sun
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 2:49 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 transitional phase. Tonight's moon is 72% 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 shifting between spring and neap.

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 Waning Gibbous (72% illuminated). This places Block Island, RI in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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