Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 5h 26m at 4:08 pm (0.5 ft)
Next high tide : 10:46 pm (3.0 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:18 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Aug 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:052.912:332.95:470.46:270.75:428:02Third Quarter1Tue
2Wed12:482.71:172.86:240.57:380.85:438:01Third Quarter2Wed
3Thu1:322.52:002.77:060.68:500.95:448:00Third Quarter3Thu
4Fri2:202.32:492.77:540.79:570.95:457:58Third Quarter4Fri
5Sat3:172.23:482.78:470.710:560.85:467:57Waning Crescent5Sat
6Sun4:242.24:512.89:480.711:470.75:477:56Waning Crescent6Sun
7Mon5:222.45:443.010:490.65:487:55Waning Crescent7Mon
8Tue6:102.56:283.212:330.511:43 AM0.45:497:53Waning Crescent8Tue
9Wed6:532.77:103.41:150.412:320.25:507:52New Moon9Wed
10Thu7:352.97:513.51:550.21:190.15:517:51New Moon10Thu
11Fri8:183.18:343.62:310.12:050.05:527:50New Moon11Fri
12Sat9:013.39:173.73:040.02:50-0.15:537:48New Moon12Sat
13Sun9:463.410:023.63:35-0.13:35-0.15:547:47Waxing Crescent13Sun
14Mon10:333.510:493.54:08-0.14:230.05:557:45Waxing Crescent14Mon
15Tue11:233.611:403.34:45-0.15:160.15:567:44Waxing Crescent15Tue
16Wed12:173.65:280.06:220.35:577:43First Quarter16Wed
17Thu12:353.11:143.56:200.17:470.45:587:41First Quarter17Thu
18Fri1:332.92:143.57:190.29:090.45:597:40First Quarter18Fri
19Sat2:362.83:213.48:300.310:210.46:007:38First Quarter19Sat
20Sun3:472.74:323.49:560.311:230.36:017:37Waxing Gibbous20Sun
21Mon4:572.85:373.511:100.26:027:35Waxing Gibbous21Mon
22Tue5:583.06:323.612:160.212:100.16:037:34Waxing Gibbous22Tue
23Wed6:513.27:213.71:050.11:030.16:047:32Full Moon23Wed
24Thu7:403.38:073.71:490.01:500.06:057:31Full Moon24Thu
25Fri8:263.48:493.62:280.02:330.06:067:29Full Moon25Fri
26Sat9:083.49:293.53:030.03:110.16:077:27Full Moon26Sat
27Sun9:493.310:073.33:320.03:440.26:087:26Waning Gibbous27Sun
28Mon10:273.210:453.13:560.14:160.36:097:24Waning Gibbous28Mon
29Tue11:053.111:232.84:220.24:500.56:107:23Waning Gibbous29Tue
30Wed11:432.94:530.45:310.76:117:21Waning Gibbous30Wed
31Thu12:042.612:222.85:290.56:240.86:127:19Third Quarter31Thu
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 7:27 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 spring phase. Tonight's moon is 88% 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 (88% 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