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 40m 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 - Jun 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:102.82:502.98:250.39:110.55:158:12Third Quarter1Mon
2Tue3:122.73:513.29:180.110:310.35:158:13Waning Crescent2Tue
3Wed4:172.84:523.510:120.011:350.15:148:14Waning Crescent3Wed
4Thu5:212.95:493.811:05-0.15:148:14Waning Crescent4Thu
5Fri6:193.06:434.012:32-0.111:58 AM-0.35:148:15Waning Crescent5Fri
6Sat7:133.17:364.11:28-0.312:50-0.35:138:16New Moon6Sat
7Sun8:073.28:294.12:22-0.41:44-0.45:138:16New Moon7Sun
8Mon9:003.29:224.03:14-0.42:39-0.35:138:17New Moon8Mon
9Tue9:523.210:153.84:05-0.33:32-0.25:138:17Waxing Crescent9Tue
10Wed10:453.111:083.64:57-0.24:260.05:138:18Waxing Crescent10Wed
11Thu11:403.05:510.05:260.25:138:19Waxing Crescent11Thu
12Fri12:033.312:373.06:460.26:380.45:128:19First Quarter12Fri
13Sat12:573.01:332.97:380.37:510.65:128:19First Quarter13Sat
14Sun1:492.72:292.98:240.48:560.75:128:20First Quarter14Sun
15Mon2:412.53:252.99:050.59:560.75:128:20First Quarter15Mon
16Tue3:362.34:202.99:410.510:510.75:128:21Waxing Gibbous16Tue
17Wed4:352.25:122.910:170.511:390.65:138:21Waxing Gibbous17Wed
18Thu5:282.25:573.010:550.55:138:21Waxing Gibbous18Thu
19Fri6:132.36:373.112:230.511:35 AM0.55:138:22Waxing Gibbous19Fri
20Sat6:552.47:163.21:060.412:160.45:138:22Full Moon20Sat
21Sun7:342.57:543.21:480.412:590.45:138:22Full Moon21Sun
22Mon8:122.58:323.22:300.31:410.35:138:22Full Moon22Mon
23Tue8:512.69:103.23:090.32:230.35:148:23Full Moon23Tue
24Wed9:312.69:483.23:440.33:040.35:148:23Waning Gibbous24Wed
25Thu10:122.710:293.24:170.33:450.45:148:23Waning Gibbous25Thu
26Fri10:572.711:123.14:480.34:290.45:158:23Waning Gibbous26Fri
27Sat11:442.811:593.05:230.35:190.55:158:23Waning Gibbous27Sat
28Sun12:352.96:040.26:190.65:168:23Third Quarter28Sun
29Mon12:502.91:273.16:500.27:310.65:168:23Third Quarter29Mon
30Tue1:442.82:223.27:400.18:540.55:168:23Third Quarter30Tue
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