Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 4h 04m at 6:07 am (0.3 ft)
Next high tide : 12:46 pm (2.9 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:20 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Mar 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:242.83:552.310:250.110:070.06:195:37Waxing Gibbous1Tue
2Wed4:352.94:572.511:19-0.111:09-0.26:175:38Waxing Gibbous2Wed
3Thu5:303.05:492.812:05-0.26:165:39Waxing Gibbous3Thu
4Fri6:173.16:353.012:01-0.312:46-0.36:145:41Full Moon4Fri
5Sat6:593.17:183.112:47-0.41:21-0.46:125:42Full Moon5Sat
6Sun7:383.17:583.21:27-0.41:51-0.46:115:43Full Moon6Sun
7Mon8:143.08:363.22:02-0.42:15-0.46:095:44Full Moon7Mon
8Tue8:482.89:113.12:33-0.32:36-0.36:085:45Waning Gibbous8Tue
9Wed9:222.69:442.93:03-0.12:58-0.26:065:46Waning Gibbous9Wed
10Thu9:562.410:172.73:340.03:260.06:045:47Waning Gibbous10Thu
11Fri10:322.210:532.54:090.23:590.26:035:48Waning Gibbous11Fri
12Sat11:132.011:362.44:510.44:380.46:015:50Third Quarter12Sat
13Sun1:001.86:470.66:270.56:596:51Third Quarter13Sun
14Mon1:272.21:561.78:230.77:280.66:586:52Third Quarter14Mon
15Tue2:312.23:061.710:070.68:450.66:566:53Third Quarter15Tue
16Wed3:572.24:281.911:070.510:280.56:546:54Waning Crescent16Wed
17Thu5:102.55:292.211:530.311:360.26:536:55Waning Crescent17Thu
18Fri6:002.76:162.512:310.16:516:56Waning Crescent18Fri
19Sat6:423.06:582.912:250.01:05-0.26:496:57Waning Crescent19Sat
20Sun7:233.27:413.31:11-0.31:37-0.46:486:58New Moon20Sun
21Mon8:053.38:243.51:57-0.52:09-0.66:466:59New Moon21Mon
22Tue8:483.39:073.72:41-0.62:43-0.76:447:01New Moon22Tue
23Wed9:333.29:533.83:26-0.63:19-0.76:437:02Waxing Crescent23Wed
24Thu10:203.110:413.74:12-0.53:57-0.66:417:03Waxing Crescent24Thu
25Fri11:102.811:333.55:02-0.44:40-0.46:397:04Waxing Crescent25Fri
26Sat12:062.66:06-0.15:30-0.26:387:05Waxing Crescent26Sat
27Sun12:323.31:072.47:320.16:320.16:367:06First Quarter27Sun
28Mon1:373.02:132.38:530.28:030.26:347:07First Quarter28Mon
29Tue2:512.83:272.410:040.39:510.36:337:08First Quarter29Tue
30Wed4:112.74:402.511:040.211:050.26:317:09Waxing Gibbous30Wed
31Thu5:192.85:402.711:540.16:297:10Waxing Gibbous31Thu
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 9:26 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 transitional phase. Tonight's moon is 62% 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 Third Quarter (62% 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