Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Block Island, RI.
Next low tide (tomorrow) : 4:29 am (0.3 ft)
Next high tide : in 2h 39m at 10:09 pm (3.1 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:17 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jun 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:203.21:032.96:450.26:390.35:158:12First Quarter1Tue
2Wed1:183.12:033.07:520.28:000.45:158:13First Quarter2Wed
3Thu2:183.03:053.28:550.19:310.35:148:14First Quarter3Thu
4Fri3:233.04:103.49:550.010:450.25:148:14Waxing Gibbous4Fri
5Sat4:313.05:123.610:500.011:470.05:148:15Waxing Gibbous5Sat
6Sun5:343.06:083.811:40-0.15:138:16Waxing Gibbous6Sun
7Mon6:303.16:593.912:42-0.112:28-0.25:138:16Waxing Gibbous7Mon
8Tue7:223.27:494.01:34-0.21:15-0.25:138:17Full Moon8Tue
9Wed8:123.28:373.92:24-0.32:01-0.25:138:18Full Moon9Wed
10Thu9:013.29:243.83:09-0.22:44-0.15:138:18Full Moon10Thu
11Fri9:483.110:103.63:52-0.23:250.05:138:19Waning Gibbous11Fri
12Sat10:353.010:563.34:340.04:040.25:138:19Waning Gibbous12Sat
13Sun11:232.811:423.15:160.24:450.45:128:20Waning Gibbous13Sun
14Mon12:132.76:000.35:320.65:128:20Waning Gibbous14Mon
15Tue12:292.91:022.66:480.46:330.75:128:20Third Quarter15Tue
16Wed1:152.71:502.67:350.57:550.85:138:21Third Quarter16Wed
17Thu2:022.52:392.68:170.69:090.85:138:21Third Quarter17Thu
18Fri2:512.43:312.68:580.610:120.85:138:21Third Quarter18Fri
19Sat3:482.34:242.79:420.511:070.75:138:22Waning Crescent19Sat
20Sun4:462.45:132.910:270.511:560.55:138:22Waning Crescent20Sun
21Mon5:362.45:563.111:120.45:138:22Waning Crescent21Mon
22Tue6:212.66:373.312:410.411:55 AM0.25:148:22Waning Crescent22Tue
23Wed7:042.77:193.51:250.212:380.15:148:23New Moon23Wed
24Thu7:472.98:023.62:070.11:220.05:148:23New Moon24Thu
25Fri8:323.08:473.72:480.02:07-0.15:148:23New Moon25Fri
26Sat9:183.19:333.73:26-0.12:54-0.15:158:23New Moon26Sat
27Sun10:063.110:213.74:05-0.13:41-0.15:158:23Waxing Crescent27Sun
28Mon10:573.211:123.54:46-0.14:310.05:168:23Waxing Crescent28Mon
29Tue11:513.25:320.05:280.15:168:23Waxing Crescent29Tue
30Wed12:063.412:473.36:260.06:390.35:178:23First Quarter30Wed
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 1:19 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 spring phase. Tonight's moon is 94% 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 maximum.

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 (94% illuminated). This places Block Island, RI in a spring tide cycle, so tidal ranges are near their weekly maximum 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