Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 2h 05m at 5:39 pm (0.6 ft)
Next high tide (tomorrow) : 12:12 am (2.8 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jun 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:273.010:483.54:37-0.13:580.05:158:13Waxing Crescent1Tue
2Wed11:202.911:413.25:290.14:480.25:158:14Waxing Crescent2Wed
3Thu12:152.86:260.35:460.45:148:14Waxing Crescent3Thu
4Fri12:343.01:112.77:220.47:010.65:148:15First Quarter4Fri
5Sat1:272.72:062.68:120.58:150.75:148:16First Quarter5Sat
6Sun2:182.53:012.68:560.59:200.85:138:16First Quarter6Sun
7Mon3:112.43:572.79:360.610:180.75:138:17First Quarter7Mon
8Tue4:082.34:492.810:120.611:090.75:138:17Waxing Gibbous8Tue
9Wed5:022.35:332.910:460.511:560.55:138:18Waxing Gibbous9Wed
10Thu5:482.36:123.111:200.55:138:19Waxing Gibbous10Thu
11Fri6:282.46:493.212:400.411:57 AM0.45:138:19Waxing Gibbous11Fri
12Sat7:072.57:263.31:220.312:360.35:128:19Full Moon12Sat
13Sun7:462.58:053.42:040.21:160.25:128:20Full Moon13Sun
14Mon8:262.68:453.42:450.21:580.25:128:20Full Moon14Mon
15Tue9:082.79:273.43:220.22:400.25:138:21Full Moon15Tue
16Wed9:512.710:113.43:580.23:240.25:138:21Waning Gibbous16Wed
17Thu10:382.710:583.34:350.24:090.35:138:21Waning Gibbous17Thu
18Fri11:282.811:483.25:160.24:590.45:138:22Waning Gibbous18Fri
19Sat12:222.96:020.26:000.45:138:22Third Quarter19Sat
20Sun12:413.11:183.06:530.27:160.55:138:22Third Quarter20Sun
21Mon1:363.02:153.27:450.18:430.55:138:22Third Quarter21Mon
22Tue2:352.93:153.38:380.110:040.45:148:23Third Quarter22Tue
23Wed3:392.84:193.59:330.011:120.25:148:23Waning Crescent23Wed
24Thu4:462.85:203.710:320.05:148:23Waning Crescent24Thu
25Fri5:492.86:173.812:110.111:29 AM-0.15:158:23Waning Crescent25Fri
26Sat6:452.97:113.91:06-0.112:24-0.15:158:23New Moon26Sat
27Sun7:393.08:033.91:59-0.11:18-0.15:168:23New Moon27Sun
28Mon8:303.18:543.82:48-0.12:11-0.15:168:23New Moon28Mon
29Tue9:203.19:423.63:34-0.13:010.05:168:23New Moon29Tue
30Wed10:083.110:283.44:180.03:470.15:178:23Waxing Crescent30Wed
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 8:55 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 72% 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 Waning Gibbous (72% 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