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 1h 31m 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 - Feb 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:243.46:433.012:06-0.512:53-0.66:565:02New Moon1Fri
2Sat7:103.47:303.212:55-0.61:34-0.66:555:04New Moon2Sat
3Sun7:543.48:143.21:40-0.62:09-0.66:545:05New Moon3Sun
4Mon8:353.28:553.12:20-0.52:40-0.66:535:06Waxing Crescent4Mon
5Tue9:143.09:363.02:55-0.43:06-0.46:525:07Waxing Crescent5Tue
6Wed9:532.710:152.83:28-0.23:30-0.36:515:09Waxing Crescent6Wed
7Thu10:322.510:542.64:010.04:00-0.16:505:10Waxing Crescent7Thu
8Fri11:142.211:352.44:400.34:360.16:495:11First Quarter8Fri
9Sat11:582.05:310.45:200.26:485:12First Quarter9Sat
10Sun12:192.312:481.87:060.66:120.46:465:14First Quarter10Sun
11Mon1:112.21:481.78:410.67:140.46:455:15First Quarter11Mon
12Tue2:212.13:061.89:470.58:310.46:445:16Waxing Gibbous12Tue
13Wed3:462.24:131.910:400.49:530.36:435:17Waxing Gibbous13Wed
14Thu4:422.45:022.211:240.210:500.06:415:19Waxing Gibbous14Thu
15Fri5:232.75:432.412:030.06:405:20Waxing Gibbous15Fri
16Sat6:012.96:222.712:37-0.26:395:21Full Moon16Sat
17Sun6:393.17:033.012:21-0.41:09-0.46:375:22Full Moon17Sun
18Mon7:193.27:443.21:04-0.51:37-0.56:365:24Full Moon18Mon
19Tue8:003.28:263.41:45-0.62:06-0.66:345:25Full Moon19Tue
20Wed8:433.29:103.42:27-0.62:38-0.76:335:26Waning Gibbous20Wed
21Thu9:283.09:583.43:10-0.53:14-0.66:325:27Waning Gibbous21Thu
22Fri10:172.810:503.33:57-0.43:55-0.56:305:28Waning Gibbous22Fri
23Sat11:112.611:473.14:54-0.24:44-0.36:295:30Third Quarter23Sat
24Sun12:102.56:150.05:44-0.16:275:31Third Quarter24Sun
25Mon12:503.01:152.37:480.17:040.06:265:32Third Quarter25Mon
26Tue2:012.92:292.39:050.18:550.06:245:33Third Quarter26Tue
27Wed3:182.93:442.410:080.010:12-0.16:235:34Waning Crescent27Wed
28Thu4:252.94:472.711:01-0.111:11-0.26:215:35Waning Crescent28Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8459338)

Common Questions About Block Island, RI Tides

Show All
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