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 : 4:08 pm (0.5 ft)
Next high tide : in 3h 57m at 10:34 am (2.7 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 - Apr 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:033.69:284.02:55-0.83:01-0.86:277:12Full Moon1Sat
2Sun9:523.410:174.03:44-0.83:41-0.76:267:13Waning Gibbous2Sun
3Mon10:423.211:093.84:35-0.64:23-0.56:247:14Waning Gibbous3Mon
4Tue11:363.05:33-0.45:10-0.36:227:15Waning Gibbous4Tue
5Wed12:053.512:342.76:45-0.16:070.06:217:16Third Quarter5Wed
6Thu1:073.21:362.58:010.17:360.36:197:17Third Quarter6Thu
7Fri2:132.92:432.49:120.29:160.46:177:18Third Quarter7Fri
8Sat3:252.83:562.410:160.310:310.36:167:19Third Quarter8Sat
9Sun4:362.75:022.511:100.311:300.36:147:20Waning Crescent9Sun
10Mon5:352.75:552.711:560.26:137:21Waning Crescent10Mon
11Tue6:222.86:412.912:190.212:340.16:117:22Waning Crescent11Tue
12Wed7:042.87:213.01:010.11:070.06:097:23Waning Crescent12Wed
13Thu7:412.87:573.11:390.01:350.06:087:24New Moon13Thu
14Fri8:162.98:293.22:130.02:01-0.16:067:25New Moon14Fri
15Sat8:492.89:003.22:45-0.12:26-0.16:057:27New Moon15Sat
16Sun9:222.89:303.13:140.02:530.06:037:28New Moon16Sun
17Mon9:552.710:013.03:420.03:240.06:027:29Waxing Crescent17Mon
18Tue10:302.510:352.94:110.13:570.26:007:30Waxing Crescent18Tue
19Wed11:102.411:152.84:440.34:350.35:597:31Waxing Crescent19Wed
20Thu11:542.35:230.45:170.45:577:32Waxing Crescent20Thu
21Fri12:012.712:452.26:130.56:090.55:567:33First Quarter21Fri
22Sat12:552.61:412.27:200.67:110.55:547:34First Quarter22Sat
23Sun1:542.62:432.48:520.58:240.55:537:35First Quarter23Sun
24Mon3:002.73:502.610:050.49:480.35:517:36First Quarter24Mon
25Tue4:102.84:542.910:570.111:050.15:507:37Waxing Gibbous25Tue
26Wed5:153.05:503.311:42-0.15:497:38Waxing Gibbous26Wed
27Thu6:123.36:413.712:05-0.212:24-0.35:477:39Waxing Gibbous27Thu
28Fri7:043.47:314.01:00-0.51:07-0.55:467:40Full Moon28Fri
29Sat7:543.58:204.21:54-0.71:51-0.65:457:42Full Moon29Sat
30Sun8:453.59:094.22:45-0.72:35-0.65:437:43Full Moon30Sun
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 1:21 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