Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 6h 16m at 9:27 pm (0.6 ft)
Next high tide (tomorrow) : 2:59 am (2.4 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:13 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jan 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:013.13:282.310:000.09:24-0.17:114:28Waxing Gibbous1Wed
2Thu4:053.24:312.410:58-0.110:21-0.17:114:29Waxing Gibbous2Thu
3Fri5:033.25:262.511:50-0.111:13-0.27:114:30Waxing Gibbous3Fri
4Sat5:543.36:162.612:37-0.27:114:30Full Moon4Sat
5Sun6:423.37:022.712:01-0.21:21-0.27:114:31Full Moon5Sun
6Mon7:263.27:472.712:46-0.22:01-0.27:114:32Full Moon6Mon
7Tue8:083.18:292.71:27-0.22:37-0.27:114:33Full Moon7Tue
8Wed8:473.09:112.62:04-0.23:09-0.17:114:34Waning Gibbous8Wed
9Thu9:232.89:522.52:40-0.13:39-0.17:114:35Waning Gibbous9Thu
10Fri9:592.610:332.43:160.14:060.07:104:36Waning Gibbous10Fri
11Sat10:352.511:142.33:560.24:350.17:104:37Waning Gibbous11Sat
12Sun11:142.311:552.34:420.45:090.27:104:39Third Quarter12Sun
13Mon11:562.15:380.55:500.37:094:40Third Quarter13Mon
14Tue12:382.312:421.96:480.56:350.47:094:41Third Quarter14Tue
15Wed1:252.31:361.88:130.57:260.47:094:42Third Quarter15Wed
16Thu2:222.42:421.89:290.48:250.37:084:43Waning Crescent16Thu
17Fri3:262.53:511.910:280.39:290.27:084:44Waning Crescent17Fri
18Sat4:262.84:492.111:170.110:280.07:074:45Waning Crescent18Sat
19Sun5:183.05:392.312:03-0.17:074:47Waning Crescent19Sun
20Mon6:073.36:272.612:47-0.37:064:48New Moon20Mon
21Tue6:543.57:142.812:14-0.41:29-0.57:054:49New Moon21Tue
22Wed7:413.68:023.01:04-0.62:09-0.67:054:50New Moon22Wed
23Thu8:283.68:503.11:54-0.72:48-0.77:044:51Waxing Crescent23Thu
24Fri9:153.59:403.22:44-0.63:26-0.67:034:53Waxing Crescent24Fri
25Sat10:043.210:323.23:36-0.54:06-0.67:024:54Waxing Crescent25Sat
26Sun10:562.911:273.14:36-0.34:49-0.47:024:55Waxing Crescent26Sun
27Mon11:512.65:54-0.15:39-0.37:014:56First Quarter27Mon
28Tue12:253.112:502.37:190.16:35-0.17:004:58First Quarter28Tue
29Wed1:272.91:552.18:370.17:420.06:594:59First Quarter29Wed
30Thu2:382.83:082.19:470.19:030.16:585:00Waxing Gibbous30Thu
31Fri3:512.84:172.110:470.110:150.06:575:01Waxing 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 12:13 am — 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 58% 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 First Quarter (58% 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