Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 3h 52m at 9:27 pm (0.6 ft)
Next high tide (tomorrow) : 2:59 am (2.4 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:13 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Mar 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:372.64:012.110:290.310:130.26:195:37Waxing Gibbous1Sat
2Sun4:422.64:592.311:190.211:080.16:185:38Waxing Gibbous2Sun
3Mon5:332.75:462.512:020.16:165:39Waxing Gibbous3Mon
4Tue6:152.86:292.712:380.06:155:40Waxing Gibbous4Tue
5Wed6:522.87:072.812:32-0.11:10-0.16:135:41Full Moon5Wed
6Thu7:252.87:422.91:06-0.21:37-0.26:115:42Full Moon6Thu
7Fri7:552.88:142.91:38-0.21:59-0.26:105:44Full Moon7Fri
8Sat8:242.78:442.92:08-0.22:18-0.26:085:45Full Moon8Sat
9Sun9:532.610:142.93:38-0.13:40-0.27:076:46Waning Gibbous9Sun
10Mon10:242.510:462.84:090.04:05-0.17:056:47Waning Gibbous10Mon
11Tue11:002.311:212.74:420.14:360.17:036:48Waning Gibbous11Tue
12Wed11:402.15:200.25:120.27:026:49Waning Gibbous12Wed
13Thu12:032.612:272.06:070.45:570.37:006:50Third Quarter13Thu
14Fri12:542.51:221.97:090.56:540.46:586:51Third Quarter14Fri
15Sat1:542.52:261.98:430.58:030.46:576:53Third Quarter15Sat
16Sun3:052.53:422.010:250.49:270.36:556:54Third Quarter16Sun
17Mon4:242.74:562.311:230.210:580.16:536:55Waning Crescent17Mon
18Tue5:313.05:562.712:10-0.16:526:56Waning Crescent18Tue
19Wed6:253.36:473.112:04-0.212:52-0.46:506:57Waning Crescent19Wed
20Thu7:153.57:363.512:59-0.51:32-0.66:486:58New Moon20Thu
21Fri8:023.68:233.81:52-0.72:11-0.86:476:59New Moon21Fri
22Sat8:503.59:103.92:43-0.82:49-0.86:457:00New Moon22Sat
23Sun9:373.49:583.93:33-0.83:26-0.86:437:01Waxing Crescent23Sun
24Mon10:253.110:473.74:22-0.74:04-0.66:427:02Waxing Crescent24Mon
25Tue11:162.911:393.55:16-0.44:45-0.46:407:03Waxing Crescent25Tue
26Wed12:102.66:21-0.15:31-0.16:387:04First Quarter26Wed
27Thu12:363.11:102.37:380.26:290.26:377:06First Quarter27Thu
28Fri1:412.82:142.28:520.48:000.46:357:07First Quarter28Fri
29Sat2:542.53:272.110:010.49:460.56:337:08First Quarter29Sat
30Sun4:142.44:382.211:000.410:560.46:327:09Waxing Gibbous30Sun
31Mon5:182.55:362.411:470.411:490.36:307:10Waxing Gibbous31Mon
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 12:13 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 neap phase. Tonight's moon is 58% 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 minimum.

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 First Quarter (58% illuminated). This places Block Island, RI in a neap tide cycle, so tidal ranges are near their weekly minimum 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