Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 8:28 am (0.3 ft)
Next high tide : in 9m at 2:25 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 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:472.411:292.34:050.34:550.37:114:27Waning Gibbous1Mon
2Tue11:282.34:560.55:320.37:114:28Third Quarter2Tue
3Wed12:122.312:112.15:580.66:140.47:114:29Third Quarter3Wed
4Thu12:572.31:002.07:130.66:590.47:114:30Third Quarter4Thu
5Fri1:462.41:561.98:360.57:500.37:114:31Third Quarter5Fri
6Sat2:432.53:021.99:440.48:470.37:114:32Waning Crescent6Sat
7Sun3:432.74:072.010:380.29:460.17:114:33Waning Crescent7Sun
8Mon4:392.95:012.211:270.010:40-0.17:114:34Waning Crescent8Mon
9Tue5:293.25:512.412:13-0.27:114:35Waning Crescent9Tue
10Wed6:183.46:392.712:58-0.47:114:36New Moon10Wed
11Thu7:063.67:282.812:24-0.51:42-0.57:104:37New Moon11Thu
12Fri7:553.68:163.01:15-0.62:24-0.67:104:38New Moon12Fri
13Sat8:433.69:063.12:06-0.63:04-0.67:104:39Waxing Crescent13Sat
14Sun9:323.59:583.12:57-0.63:45-0.67:094:40Waxing Crescent14Sun
15Mon10:233.210:523.13:52-0.44:29-0.57:094:41Waxing Crescent15Mon
16Tue11:162.911:493.14:58-0.25:16-0.47:094:42First Quarter16Tue
17Wed12:132.66:230.06:08-0.27:084:44First Quarter17Wed
18Thu12:483.01:122.37:450.17:05-0.17:084:45First Quarter18Thu
19Fri1:522.92:182.19:000.18:110.07:074:46First Quarter19Fri
20Sat3:022.93:302.110:060.19:240.17:064:47Waxing Gibbous20Sat
21Sun4:102.94:342.211:020.110:270.07:064:48Waxing Gibbous21Sun
22Mon5:092.95:282.311:520.011:210.07:054:49Waxing Gibbous22Mon
23Tue5:592.96:152.412:370.07:044:51Waxing Gibbous23Tue
24Wed6:433.06:592.512:07-0.11:16-0.17:044:52Full Moon24Wed
25Thu7:233.07:402.612:48-0.21:51-0.27:034:53Full Moon25Thu
26Fri8:002.98:192.61:25-0.22:22-0.27:024:54Full Moon26Fri
27Sat8:322.98:552.61:58-0.22:49-0.27:014:56Full Moon27Sat
28Sun9:032.89:302.62:30-0.13:12-0.27:014:57Waning Gibbous28Sun
29Mon9:342.610:052.53:040.03:34-0.17:004:58Waning Gibbous29Mon
30Tue10:072.410:402.43:400.14:000.06:594:59Waning Gibbous30Tue
31Wed10:442.211:182.44:210.24:310.16:585:01Waning Gibbous31Wed
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 5:26 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