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 1h 35m 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 - Nov 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:273.59:523.02:380.03:480.17:175:42Waning Gibbous1Sat
2Sun9:073.39:352.82:130.13:210.36:184:41Waning Gibbous2Sun
3Mon9:473.010:202.62:490.33:560.46:194:39Waning Gibbous3Mon
4Tue10:292.811:092.43:290.54:430.66:214:38Waning Gibbous4Tue
5Wed11:152.64:140.66:040.76:224:37Third Quarter5Wed
6Thu12:022.312:052.55:100.87:130.76:234:36Third Quarter6Thu
7Fri12:552.312:582.46:240.98:080.76:244:35Third Quarter7Fri
8Sat1:512.41:552.48:000.88:540.66:254:34Third Quarter8Sat
9Sun2:492.52:562.49:120.79:340.56:274:33Waning Crescent9Sun
10Mon3:412.73:522.510:060.510:080.46:284:32Waning Crescent10Mon
11Tue4:253.04:392.710:520.310:400.26:294:31Waning Crescent11Tue
12Wed5:073.35:232.811:350.111:150.06:304:30Waning Crescent12Wed
13Thu5:483.66:073.012:16-0.16:314:29New Moon13Thu
14Fri6:313.86:523.112:59-0.26:334:28New Moon14Fri
15Sat7:163.97:383.212:35-0.31:41-0.36:344:27New Moon15Sat
16Sun8:033.98:273.21:19-0.42:25-0.36:354:26Waxing Crescent16Sun
17Mon8:523.89:183.12:05-0.33:11-0.26:364:25Waxing Crescent17Mon
18Tue9:443.710:123.12:54-0.24:02-0.16:374:25Waxing Crescent18Tue
19Wed10:403.511:113.03:48-0.15:050.06:384:24Waxing Crescent19Wed
20Thu11:403.34:560.16:180.16:404:23First Quarter20Thu
21Fri12:143.012:433.16:400.37:230.16:414:23First Quarter21Fri
22Sat1:183.11:472.98:060.38:230.16:424:22First Quarter22Sat
23Sun2:243.12:532.89:160.29:170.06:434:21Waxing Gibbous23Sun
24Mon3:293.23:562.810:160.110:070.06:444:21Waxing Gibbous24Mon
25Tue4:273.44:502.811:090.010:51-0.16:454:20Waxing Gibbous25Tue
26Wed5:183.55:392.811:560.011:30-0.16:464:20Waxing Gibbous26Wed
27Thu6:043.56:242.912:39-0.16:474:19Full Moon27Thu
28Fri6:473.57:082.912:06-0.11:19-0.16:494:19Full Moon28Fri
29Sat7:273.47:492.912:41-0.11:56-0.16:504:19Full Moon29Sat
30Sun8:053.38:302.81:150.02:290.06:514:18Full Moon30Sun
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