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 1h 43m 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 - May 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:092.56:292.912:000.412:090.35:437:43Waxing Gibbous1Thu
2Fri6:452.57:043.112:400.312:360.25:427:44Waxing Gibbous2Fri
3Sat7:182.67:363.21:190.21:020.15:407:45Full Moon3Sat
4Sun7:512.68:073.31:560.11:290.15:397:46Full Moon4Sun
5Mon8:242.68:403.32:320.01:590.15:387:47Full Moon5Mon
6Tue8:592.69:153.33:050.02:320.15:377:48Full Moon6Tue
7Wed9:372.69:533.23:370.13:070.25:357:49Waning Gibbous7Wed
8Thu10:182.510:353.14:100.23:460.25:347:50Waning Gibbous8Thu
9Fri11:042.511:243.04:490.34:280.35:337:51Waning Gibbous9Fri
10Sat11:562.45:360.45:190.45:327:52Waning Gibbous10Sat
11Sun12:183.012:532.56:390.46:210.55:317:53Third Quarter11Sun
12Mon1:172.91:542.67:520.47:380.55:307:54Third Quarter12Mon
13Tue2:192.92:582.88:570.39:130.45:297:55Third Quarter13Tue
14Wed3:252.94:053.09:540.110:380.25:287:56Waning Crescent14Wed
15Thu4:322.95:063.410:46-0.111:410.05:277:57Waning Crescent15Thu
16Fri5:333.06:013.711:32-0.25:267:58Waning Crescent16Fri
17Sat6:283.16:524.012:38-0.212:18-0.35:257:59Waning Crescent17Sat
18Sun7:203.27:424.11:31-0.41:03-0.45:248:00New Moon18Sun
19Mon8:113.28:314.12:23-0.41:49-0.45:238:01New Moon19Mon
20Tue9:013.19:203.93:13-0.42:35-0.35:238:02New Moon20Tue
21Wed9:503.010:103.74:00-0.33:21-0.15:228:03Waxing Crescent21Wed
22Thu10:412.911:013.44:49-0.14:070.15:218:04Waxing Crescent22Thu
23Fri11:342.811:543.15:430.24:550.35:208:05Waxing Crescent23Fri
24Sat12:292.66:430.35:520.55:208:06Waxing Crescent24Sat
25Sun12:492.81:262.67:400.57:120.75:198:07First Quarter25Sun
26Mon1:432.62:232.58:320.58:300.85:188:08First Quarter26Mon
27Tue2:372.53:202.59:180.69:360.85:188:08First Quarter27Tue
28Wed3:342.34:172.69:580.610:330.75:178:09First Quarter28Wed
29Thu4:302.35:062.810:340.511:230.65:178:10Waxing Gibbous29Thu
30Fri5:192.35:472.911:070.55:168:11Waxing Gibbous30Fri
31Sat6:012.46:243.112:080.511:38 AM0.45:168:12Waxing Gibbous31Sat
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