Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 5h 01m at 9:39 pm (0.6 ft)
Next high tide (tomorrow) : 3:27 am (2.6 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:13 am
Moon phase : Third Quarter (37% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jan 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:102.93:342.110:040.29:290.17:114:28Waxing Gibbous1Sun
2Mon4:112.94:322.110:570.210:160.17:114:28Waxing Gibbous2Mon
3Tue5:032.95:222.211:440.110:590.17:114:29Waxing Gibbous3Tue
4Wed5:492.96:072.312:260.17:114:30Waxing Gibbous4Wed
5Thu6:312.96:492.41:040.07:114:31Full Moon5Thu
6Fri7:102.97:282.512:180.01:400.07:114:32Full Moon6Fri
7Sat7:452.98:062.512:57-0.12:140.07:114:33Full Moon7Sat
8Sun8:192.98:422.41:34-0.12:460.07:114:34Full Moon8Sun
9Mon8:512.89:192.42:100.03:140.07:114:35Waning Gibbous9Mon
10Tue9:242.79:562.32:470.13:390.17:114:36Waning Gibbous10Tue
11Wed9:592.610:362.33:250.24:060.17:104:37Waning Gibbous11Wed
12Thu10:382.411:182.34:080.34:390.27:104:38Waning Gibbous12Thu
13Fri11:232.34:570.45:180.27:104:39Third Quarter13Fri
14Sat12:042.412:122.25:570.46:050.27:094:40Third Quarter14Sat
15Sun12:542.51:082.17:080.46:580.17:094:42Third Quarter15Sun
16Mon1:512.62:122.08:350.37:580.17:084:43Third Quarter16Mon
17Tue2:552.83:232.19:530.19:040.07:084:44Waning Crescent17Tue
18Wed4:023.04:292.310:52-0.110:11-0.27:074:45Waning Crescent18Wed
19Thu5:023.35:272.611:46-0.311:13-0.57:074:46Waning Crescent19Thu
20Fri5:573.66:212.812:37-0.67:064:47New Moon20Fri
21Sat6:503.87:133.012:11-0.71:26-0.77:064:49New Moon21Sat
22Sun7:423.88:043.21:07-0.82:12-0.87:054:50New Moon22Sun
23Mon8:323.88:543.32:02-0.82:55-0.87:044:51Waxing Crescent23Mon
24Tue9:213.69:453.22:54-0.73:37-0.77:044:52Waxing Crescent24Tue
25Wed10:113.310:373.23:48-0.54:18-0.57:034:53Waxing Crescent25Wed
26Thu11:022.911:323.04:50-0.35:01-0.37:024:55Waxing Crescent26Thu
27Fri11:552.56:050.05:46-0.17:014:56First Quarter27Fri
28Sat12:282.912:512.27:210.26:340.17:004:57First Quarter28Sat
29Sun1:282.71:522.08:330.37:290.26:594:58First Quarter29Sun
30Mon2:352.63:031.99:390.38:400.36:595:00Waxing Gibbous30Mon
31Tue3:462.54:101.910:360.39:520.36:585:01Waxing Gibbous31Tue
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 12:33 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 transitional phase. Tonight's moon is 37% 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 Third Quarter (37% 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