Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Block Island, RI.
Next low tide (tomorrow) : in 5h 52m at 4:29 am (0.3 ft)
Next high tide (tomorrow) : 10:34 am (2.7 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 - Sep 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:462.75:253.211:060.511:590.46:137:19Waxing Gibbous1Wed
2Thu5:452.86:173.212:000.46:147:17Waxing Gibbous2Thu
3Fri6:342.97:023.312:430.412:450.36:157:16Waxing Gibbous3Fri
4Sat7:183.17:433.31:220.31:260.36:167:14Full Moon4Sat
5Sun7:593.28:203.31:560.22:020.26:177:12Full Moon5Sun
6Mon8:363.28:543.32:260.22:340.26:187:11Full Moon6Mon
7Tue9:103.29:273.22:510.13:040.36:197:09Full Moon7Tue
8Wed9:423.29:593.13:150.23:340.36:207:07Waning Gibbous8Wed
9Thu10:143.110:332.93:410.24:060.46:217:06Waning Gibbous9Thu
10Fri10:483.011:102.74:110.34:410.66:227:04Waning Gibbous10Fri
11Sat11:252.911:532.64:450.45:220.76:237:02Waning Gibbous11Sat
12Sun12:082.95:250.56:120.86:247:01Third Quarter12Sun
13Mon12:402.512:582.86:120.67:180.96:256:59Third Quarter13Mon
14Tue1:342.41:532.87:080.79:060.86:266:57Third Quarter14Tue
15Wed2:332.42:562.98:120.610:210.76:276:55Third Quarter15Wed
16Thu3:412.54:073.19:240.511:140.56:286:54Waning Crescent16Thu
17Fri4:472.85:123.310:380.311:590.26:296:52Waning Crescent17Fri
18Sat5:453.16:083.611:420.06:306:50Waning Crescent18Sat
19Sun6:373.56:593.812:41-0.112:38-0.26:316:49New Moon19Sun
20Mon7:273.87:494.01:23-0.31:31-0.46:326:47New Moon20Mon
21Tue8:164.18:384.02:04-0.42:24-0.56:336:45New Moon21Tue
22Wed9:054.29:273.92:45-0.53:16-0.56:346:43Waxing Crescent22Wed
23Thu9:554.210:173.63:26-0.54:08-0.46:356:42Waxing Crescent23Thu
24Fri10:464.111:103.44:07-0.35:04-0.26:366:40Waxing Crescent24Fri
25Sat11:413.84:51-0.16:130.16:376:38Waxing Crescent25Sat
26Sun12:063.112:403.65:430.27:300.36:386:37First Quarter26Sun
27Mon1:062.81:443.36:580.48:410.56:396:35First Quarter27Mon
28Tue2:112.72:523.18:360.69:470.56:406:33First Quarter28Tue
29Wed3:202.64:023.09:520.610:440.66:416:31First Quarter29Wed
30Thu4:282.75:053.010:550.611:320.56:426:30Waxing Gibbous30Thu
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 7:31 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