Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Block Island, RI.
Next low tide (tomorrow) : 4:56 am (0.3 ft)
Next high tide : in 4h 09m at 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 - Mar 2057

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:073.04:322.510:52-0.110:49-0.26:195:37Waning Crescent1Thu
2Fri5:083.25:292.811:43-0.311:46-0.46:175:38Waning Crescent2Fri
3Sat6:003.36:193.012:29-0.46:165:39New Moon3Sat
4Sun6:473.47:053.212:36-0.51:10-0.56:145:41New Moon4Sun
5Mon7:313.37:493.31:21-0.51:46-0.56:125:42New Moon5Mon
6Tue8:123.28:303.22:01-0.52:16-0.56:115:43New Moon6Tue
7Wed8:513.19:093.12:37-0.42:42-0.46:095:44Waxing Crescent7Wed
8Thu9:292.89:463.03:09-0.23:06-0.36:085:45Waxing Crescent8Thu
9Fri10:072.610:232.83:400.03:33-0.16:065:46Waxing Crescent9Fri
10Sat10:472.311:002.64:140.24:070.16:045:47Waxing Crescent10Sat
11Sun12:302.15:560.45:470.37:036:48First Quarter11Sun
12Mon12:412.41:171.96:540.56:350.47:016:50First Quarter12Mon
13Tue1:282.32:121.88:470.67:330.56:596:51First Quarter13Tue
14Wed2:252.23:211.810:090.68:430.66:586:52First Quarter14Wed
15Thu3:452.24:391.911:080.510:140.56:566:53Waxing Gibbous15Thu
16Fri5:052.45:342.111:550.311:240.36:546:54Waxing Gibbous16Fri
17Sat5:552.66:172.412:350.16:536:55Waxing Gibbous17Sat
18Sun6:362.86:572.712:140.01:10-0.16:516:56Waxing Gibbous18Sun
19Mon7:153.07:373.112:59-0.21:42-0.36:496:57Full Moon19Mon
20Tue7:553.28:183.31:43-0.42:12-0.46:486:58Full Moon20Tue
21Wed8:363.39:003.52:25-0.52:41-0.56:466:59Full Moon21Wed
22Thu9:193.39:443.63:08-0.63:13-0.66:447:01Full Moon22Thu
23Fri10:043.210:303.63:51-0.63:49-0.56:437:02Waning Gibbous23Fri
24Sat10:523.011:203.54:37-0.44:29-0.46:417:03Waning Gibbous24Sat
25Sun11:452.85:30-0.25:16-0.36:397:04Waning Gibbous25Sun
26Mon12:153.412:432.66:410.06:110.06:387:05Third Quarter26Mon
27Tue1:163.21:462.58:110.17:250.16:367:06Third Quarter27Tue
28Wed2:243.02:562.49:290.29:170.26:347:07Third Quarter28Wed
29Thu3:402.94:112.510:360.110:440.16:337:08Waning Crescent29Thu
30Fri4:532.95:192.711:330.011:470.06:317:09Waning Crescent30Fri
31Sat5:533.06:142.912:20-0.16:297:10Waning Crescent31Sat
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 1:51 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 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