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 3h 25m 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 - Aug 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:312.512:562.86:020.57:130.95:428:02Third Quarter1Wed
2Thu1:152.31:392.76:460.68:380.95:438:01Third Quarter2Thu
3Fri2:032.22:282.77:370.79:550.95:448:00Third Quarter3Fri
4Sat3:002.23:312.78:350.710:570.85:457:59Waning Crescent4Sat
5Sun4:092.24:422.89:400.611:480.75:467:58Waning Crescent5Sun
6Mon5:132.35:393.010:480.55:477:57Waning Crescent6Mon
7Tue6:052.66:263.312:330.511:46 AM0.35:487:55Waning Crescent7Tue
8Wed6:512.97:103.51:130.312:380.15:497:54New Moon8Wed
9Thu7:363.17:533.61:500.11:270.05:507:53New Moon9Thu
10Fri8:203.48:373.72:25-0.12:16-0.25:517:51New Moon10Fri
11Sat9:063.69:223.72:57-0.23:03-0.25:527:50New Moon11Sat
12Sun9:523.710:083.63:30-0.33:51-0.25:537:49Waxing Crescent12Sun
13Mon10:403.810:573.44:06-0.34:410.05:547:47Waxing Crescent13Mon
14Tue11:323.811:503.14:45-0.25:400.15:557:46Waxing Crescent14Tue
15Wed12:273.75:310.06:560.35:567:45First Quarter15Wed
16Thu12:462.91:273.56:250.18:190.45:577:43First Quarter16Thu
17Fri1:472.72:313.47:330.39:340.55:587:42First Quarter17Fri
18Sat2:532.63:433.39:010.410:400.55:597:40Waxing Gibbous18Sat
19Sun4:072.74:543.310:280.411:370.46:007:39Waxing Gibbous19Sun
20Mon5:152.85:543.411:340.36:017:37Waxing Gibbous20Mon
21Tue6:123.06:443.412:270.312:280.26:027:36Waxing Gibbous21Tue
22Wed7:023.27:293.51:110.21:160.16:037:34Full Moon22Wed
23Thu7:473.38:103.41:490.11:590.16:047:33Full Moon23Thu
24Fri8:293.48:483.42:230.02:370.16:057:31Full Moon24Fri
25Sat9:083.49:243.32:510.03:100.26:067:30Full Moon25Sat
26Sun9:443.39:593.13:150.13:400.36:077:28Waning Gibbous26Sun
27Mon10:173.210:342.93:390.14:100.46:087:27Waning Gibbous27Mon
28Tue10:513.111:112.74:070.24:430.56:097:25Waning Gibbous28Tue
29Wed11:262.911:512.54:390.45:220.76:107:23Waning Gibbous29Wed
30Thu12:062.85:170.56:120.96:117:22Third Quarter30Thu
31Fri12:352.412:522.76:020.77:311.06:127:20Third Quarter31Fri
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