Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 25m at 9:10 am (0.4 ft)
Next high tide : 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 - Dec 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:162.76:060.56:460.36:524:18First Quarter1Thu
2Fri12:492.61:112.57:230.67:350.46:534:18First Quarter2Fri
3Sat1:472.62:092.38:280.68:210.46:544:17First Quarter3Sat
4Sun2:472.63:092.29:260.69:030.46:554:17Waxing Gibbous4Sun
5Mon3:432.74:042.210:160.59:430.46:564:17Waxing Gibbous5Mon
6Tue4:312.84:502.311:000.410:220.36:574:17Waxing Gibbous6Tue
7Wed5:112.95:302.411:410.310:590.26:574:17Waxing Gibbous7Wed
8Thu5:473.06:082.512:220.16:584:17Full Moon8Thu
9Fri6:213.16:442.51:010.16:594:17Full Moon9Fri
10Sat6:563.27:212.612:150.01:380.07:004:17Full Moon10Sat
11Sun7:323.27:592.612:54-0.12:110.07:014:17Full Moon11Sun
12Mon8:103.28:402.71:33-0.12:400.07:024:17Waning Gibbous12Mon
13Tue8:503.19:232.72:13-0.13:090.07:034:17Waning Gibbous13Tue
14Wed9:333.010:102.72:550.03:420.07:034:18Waning Gibbous14Wed
15Thu10:202.911:012.73:410.14:230.07:044:18Waning Gibbous15Thu
16Fri11:122.811:562.84:340.25:110.07:054:18Third Quarter16Fri
17Sat12:082.75:410.36:070.07:054:18Third Quarter17Sat
18Sun12:542.91:082.67:050.37:080.07:064:19Third Quarter18Sun
19Mon1:553.12:142.58:370.28:14-0.17:074:19Third Quarter19Mon
20Tue3:013.23:242.69:500.09:23-0.27:074:20Waning Crescent20Tue
21Wed4:063.44:302.710:50-0.210:26-0.37:084:20Waning Crescent21Wed
22Thu5:043.65:272.811:44-0.411:22-0.47:084:20Waning Crescent22Thu
23Fri5:583.86:213.012:36-0.57:094:21New Moon23Fri
24Sat6:503.87:113.112:16-0.51:24-0.67:094:22New Moon24Sat
25Sun7:393.88:013.11:08-0.52:09-0.67:094:22New Moon25Sun
26Mon8:273.68:483.11:56-0.52:51-0.57:104:23Waxing Crescent26Mon
27Tue9:133.49:363.02:40-0.43:30-0.47:104:23Waxing Crescent27Tue
28Wed9:583.110:242.83:23-0.24:07-0.27:104:24Waxing Crescent28Wed
29Thu10:442.811:132.74:070.14:420.07:114:25Waxing Crescent29Thu
30Fri11:302.55:000.35:180.17:114:26First Quarter30Fri
31Sat12:022.512:182.36:150.55:580.37:114:26First Quarter31Sat
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 12:27 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