Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 15, 2026
The tide is currently rising in Block Island, RI.
Next low tide (tomorrow) : 3:28 am (-0.4 ft)
Next high tide : in 2h 55m at 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 - Jan 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:463.55:102.811:28-0.411:08-0.47:114:28Waning Crescent1Tue
2Wed5:423.76:053.012:20-0.57:114:29New Moon2Wed
3Thu6:353.86:563.112:04-0.61:09-0.67:114:30New Moon3Thu
4Fri7:243.87:463.212:57-0.61:54-0.77:114:30New Moon4Fri
5Sat8:123.68:343.21:46-0.62:36-0.67:114:31New Moon5Sat
6Sun8:583.49:203.12:32-0.53:14-0.57:114:32Waxing Crescent6Sun
7Mon9:423.210:072.93:15-0.33:49-0.47:114:33Waxing Crescent7Mon
8Tue10:272.810:552.83:58-0.14:21-0.27:114:34Waxing Crescent8Tue
9Wed11:132.511:442.64:460.24:530.07:114:35First Quarter9Wed
10Thu12:002.35:510.45:310.27:104:36First Quarter10Thu
11Fri12:322.412:492.07:090.56:160.37:104:37First Quarter11Fri
12Sat1:232.31:441.98:210.67:090.47:104:39First Quarter12Sat
13Sun2:242.32:521.89:260.58:110.47:104:40Waxing Gibbous13Sun
14Mon3:342.33:591.910:210.49:210.37:094:41Waxing Gibbous14Mon
15Tue4:312.44:512.011:090.310:210.27:094:42Waxing Gibbous15Tue
16Wed5:152.65:332.211:520.111:090.07:084:43Waxing Gibbous16Wed
17Thu5:532.86:122.412:330.07:084:44Waxing Gibbous17Thu
18Fri6:292.96:492.61:10-0.27:074:45Full Moon18Fri
19Sat7:053.17:282.712:35-0.31:42-0.37:074:46Full Moon19Sat
20Sun7:423.18:072.91:15-0.42:10-0.47:064:48Full Moon20Sun
21Mon8:203.18:493.01:55-0.42:35-0.47:054:49Waning Gibbous21Mon
22Tue9:013.19:323.02:35-0.43:04-0.47:054:50Waning Gibbous22Tue
23Wed9:452.910:193.03:18-0.33:38-0.47:044:51Waning Gibbous23Wed
24Thu10:342.811:113.04:06-0.24:19-0.47:034:53Waning Gibbous24Thu
25Fri11:272.65:030.05:07-0.37:034:54Third Quarter25Fri
26Sat12:073.012:252.46:180.16:06-0.27:024:55Third Quarter26Sat
27Sun1:073.01:292.37:560.17:14-0.17:014:56Third Quarter27Sun
28Mon2:163.02:422.39:180.08:43-0.17:004:57Waning Crescent28Mon
29Tue3:303.03:562.410:23-0.110:08-0.26:594:59Waning Crescent29Tue
30Wed4:373.24:592.611:18-0.311:11-0.46:585:00Waning Crescent30Wed
31Thu5:333.35:532.912:08-0.46:575:01Waning Crescent31Thu
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 12:06 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 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