Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 3:29 pm (0.4 ft)
Next high tide : in 4h 12m at 9:55 am (2.7 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:17 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Aug 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:292.66:593.212:440.512:210.45:428:03Waxing Gibbous1Wed
2Thu7:152.77:413.31:260.41:040.45:438:01Full Moon2Thu
3Fri7:572.88:203.32:050.31:430.45:448:00Full Moon3Fri
4Sat8:362.98:563.32:400.32:190.35:457:59Full Moon4Sat
5Sun9:132.99:293.23:120.22:540.35:467:58Full Moon5Sun
6Mon9:482.910:023.13:400.23:270.45:477:57Waning Gibbous6Mon
7Tue10:222.910:353.04:060.24:020.55:487:56Waning Gibbous7Tue
8Wed10:582.811:122.94:320.34:390.65:497:54Waning Gibbous8Wed
9Thu11:362.811:522.75:020.45:210.75:507:53Waning Gibbous9Thu
10Fri12:172.95:380.46:100.85:517:52Third Quarter10Fri
11Sat12:372.61:032.96:200.57:110.85:527:50Third Quarter11Sat
12Sun1:272.51:543.07:090.58:260.85:537:49Third Quarter12Sun
13Mon2:232.52:523.08:050.510:000.75:547:48Third Quarter13Mon
14Tue3:282.53:583.29:070.411:080.55:557:46Waning Crescent14Tue
15Wed4:372.65:063.410:160.25:567:45Waning Crescent15Wed
16Thu5:412.96:063.712:030.211:22 AM0.05:577:43Waning Crescent16Thu
17Fri6:373.27:013.912:530.012:24-0.25:587:42New Moon17Fri
18Sat7:303.57:544.11:42-0.21:22-0.45:597:41New Moon18Sat
19Sun8:213.78:444.12:28-0.42:19-0.56:007:39New Moon19Sun
20Mon9:123.99:344.03:12-0.53:13-0.56:017:38New Moon20Mon
21Tue10:033.910:243.83:53-0.44:06-0.46:027:36Waxing Crescent21Tue
22Wed10:543.911:153.54:34-0.35:02-0.26:037:35Waxing Crescent22Wed
23Thu11:473.75:16-0.16:080.16:047:33Waxing Crescent23Thu
24Fri12:083.212:433.66:020.17:210.36:057:32First Quarter24Fri
25Sat1:032.91:423.46:560.38:320.56:067:30First Quarter25Sat
26Sun2:022.62:443.28:010.59:400.66:077:28First Quarter26Sun
27Mon3:062.43:533.09:160.610:410.76:087:27First Quarter27Mon
28Tue4:162.44:593.010:270.711:340.76:097:25Waxing Gibbous28Tue
29Wed5:192.55:543.011:240.66:107:24Waxing Gibbous29Wed
30Thu6:102.66:403.112:190.612:110.66:117:22Waxing Gibbous30Thu
31Fri6:542.77:203.212:580.512:520.56:127:20Waxing Gibbous31Fri
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 12:42 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 94% 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 Waning Gibbous (94% 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