Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, June 16, 2026
The tide is currently rising in Block Island, RI.
Next low tide (tomorrow) : 4:18 am (-0.3 ft)
Next high tide : in 19m at 9:37 pm (4.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:12 am
Moon phase : New Moon (4% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Dec 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:423.19:102.71:510.03:000.16:524:18Waning Gibbous1Mon
2Tue9:172.99:502.52:270.13:300.26:534:18Waning Gibbous2Tue
3Wed9:542.810:332.43:060.34:030.36:544:17Waning Gibbous3Wed
4Thu10:332.611:182.33:480.44:420.46:554:17Waning Gibbous4Thu
5Fri11:172.44:370.65:300.56:564:17Third Quarter5Fri
6Sat12:052.312:052.35:360.76:210.56:574:17Third Quarter6Sat
7Sun12:532.412:562.26:500.77:130.56:584:17Third Quarter7Sun
8Mon1:452.51:532.28:180.68:050.46:584:17Third Quarter8Mon
9Tue2:422.62:562.39:290.48:590.26:594:17Waning Crescent9Tue
10Wed3:402.93:582.410:230.29:510.17:004:17Waning Crescent10Wed
11Thu4:333.24:522.611:110.010:41-0.27:014:17Waning Crescent11Thu
12Fri5:223.55:432.811:57-0.211:29-0.47:024:17Waning Crescent12Fri
13Sat6:103.76:323.012:44-0.47:034:17New Moon13Sat
14Sun6:593.97:223.212:18-0.51:30-0.67:034:18New Moon14Sun
15Mon7:493.98:123.31:08-0.62:16-0.67:044:18New Moon15Mon
16Tue8:393.99:043.31:59-0.63:01-0.67:054:18Waxing Crescent16Tue
17Wed9:303.79:573.22:51-0.53:48-0.57:054:18Waxing Crescent17Wed
18Thu10:243.410:543.23:47-0.34:41-0.47:064:19Waxing Crescent18Thu
19Fri11:213.211:543.14:57-0.15:40-0.27:074:19First Quarter19Fri
20Sat12:192.96:290.16:42-0.17:074:20First Quarter20Sat
21Sun12:553.11:202.67:480.17:420.07:084:20First Quarter21Sun
22Mon1:593.02:252.48:580.28:420.07:084:21First Quarter22Mon
23Tue3:063.03:312.410:000.29:380.17:094:21Waxing Gibbous23Tue
24Wed4:093.04:312.410:540.110:280.07:094:22Waxing Gibbous24Wed
25Thu5:023.15:222.511:410.111:120.07:094:22Waxing Gibbous25Thu
26Fri5:493.16:072.612:240.07:104:23Full Moon26Fri
27Sat6:323.16:502.61:03-0.17:104:24Full Moon27Sat
28Sun7:113.17:302.712:27-0.11:39-0.17:104:24Full Moon28Sun
29Mon7:463.08:082.71:02-0.12:11-0.17:114:25Full Moon29Mon
30Tue8:193.08:452.61:37-0.12:40-0.17:114:26Full Moon30Tue
31Wed8:512.99:222.62:120.03:05-0.17:114:27Waning 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 12:57 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 4% 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 (4% 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