Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 10:27 pm (0.7 ft)
Next high tide : in 1h 53m at 3:45 pm (3.0 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:14 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - May 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:422.61:182.27:140.66:480.75:437:43Third Quarter1Fri
2Sat1:402.62:182.38:300.68:040.75:427:44Third Quarter2Sat
3Sun2:432.63:222.59:300.49:350.55:417:45Third Quarter3Sun
4Mon3:492.74:272.810:200.210:540.35:397:46Waning Crescent4Mon
5Tue4:532.85:233.211:040.011:530.05:387:47Waning Crescent5Tue
6Wed5:503.06:153.611:47-0.25:377:48Waning Crescent6Wed
7Thu6:423.17:044.012:47-0.312:30-0.45:367:49New Moon7Thu
8Fri7:333.27:534.21:40-0.51:15-0.55:357:50New Moon8Fri
9Sat8:243.38:434.22:32-0.62:02-0.55:337:51New Moon9Sat
10Sun9:153.29:344.13:23-0.62:50-0.55:327:52New Moon10Sun
11Mon10:063.110:273.94:14-0.43:40-0.35:317:53Waxing Crescent11Mon
12Tue11:003.011:243.65:10-0.24:31-0.15:307:54Waxing Crescent12Tue
13Wed11:582.96:140.05:320.15:297:55Waxing Crescent13Wed
14Thu12:243.312:592.87:210.26:560.35:287:56First Quarter14Thu
15Fri1:263.02:012.78:220.38:230.55:277:57First Quarter15Fri
16Sat2:282.73:042.79:170.49:350.55:267:58First Quarter16Sat
17Sun3:312.64:062.810:060.410:360.55:257:59First Quarter17Sun
18Mon4:312.55:022.910:480.411:280.55:248:00Waxing Gibbous18Mon
19Tue5:232.45:503.011:240.45:248:01Waxing Gibbous19Tue
20Wed6:072.46:313.112:120.411:54 AM0.35:238:02Waxing Gibbous20Wed
21Thu6:472.57:083.212:520.312:220.35:228:03Waxing Gibbous21Thu
22Fri7:242.57:433.31:300.312:520.35:218:04Full Moon22Fri
23Sat8:002.58:173.22:070.21:250.25:208:05Full Moon23Sat
24Sun8:362.58:513.22:430.22:010.35:208:06Full Moon24Sun
25Mon9:132.59:273.13:190.22:390.35:198:07Full Moon25Mon
26Tue9:502.510:053.13:530.33:170.45:188:07Waning Gibbous26Tue
27Wed10:312.410:463.04:270.43:560.45:188:08Waning Gibbous27Wed
28Thu11:152.411:312.95:050.44:390.55:178:09Waning Gibbous28Thu
29Fri12:052.45:500.55:290.65:178:10Waning Gibbous29Fri
30Sat12:212.812:582.56:410.56:310.75:168:11Third Quarter30Sat
31Sun1:142.81:532.77:340.47:460.75:168:11Third Quarter31Sun
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 7:06 pm — 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 transitional phase. Tonight's moon is 67% 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 shifting between spring and neap.

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 (67% illuminated). This places Block Island, RI in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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