Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Block Island, RI.
Next low tide (tomorrow) : 7:43 am (0.2 ft)
Next high tide (tomorrow) : in 4h 31m at 1:55 am (2.6 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:20 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jul 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:143.010:333.34:140.03:570.25:178:23Waning Gibbous1Tue
2Wed10:582.911:143.14:490.14:360.45:188:22Waning Gibbous2Wed
3Thu11:432.811:552.95:210.25:180.65:198:22Waning Gibbous3Thu
4Fri12:262.85:510.36:090.75:198:22Third Quarter4Fri
5Sat12:352.61:082.76:240.47:120.85:208:22Third Quarter5Sat
6Sun1:162.51:482.77:010.58:220.95:208:21Third Quarter6Sun
7Mon2:002.32:312.77:430.69:320.95:218:21Third Quarter7Mon
8Tue2:502.23:222.78:300.610:370.85:228:21Third Quarter8Tue
9Wed3:522.14:222.89:230.611:330.75:228:20Waning Crescent9Wed
10Thu4:572.25:213.010:220.55:238:20Waning Crescent10Thu
11Fri5:512.36:123.212:230.511:19 AM0.45:248:19Waning Crescent11Fri
12Sat6:402.56:593.41:090.412:120.25:258:19New Moon12Sat
13Sun7:262.77:453.61:530.21:030.15:258:18New Moon13Sun
14Mon8:123.08:303.72:330.11:540.05:268:18New Moon14Mon
15Tue8:593.19:163.73:110.02:44-0.15:278:17New Moon15Tue
16Wed9:463.310:023.63:46-0.13:33-0.15:288:16Waxing Crescent16Wed
17Thu10:343.410:493.54:21-0.24:230.05:298:16Waxing Crescent17Thu
18Fri11:253.511:393.34:57-0.15:190.15:308:15Waxing Crescent18Fri
19Sat12:193.55:38-0.16:270.35:308:14First Quarter19Sat
20Sun12:333.11:143.56:250.07:470.45:318:13First Quarter20Sun
21Mon1:292.82:133.57:190.19:050.45:328:13First Quarter21Mon
22Tue2:302.63:173.48:190.210:170.45:338:12First Quarter22Tue
23Wed3:382.54:273.49:320.311:210.45:348:11Waxing Gibbous23Wed
24Thu4:502.55:333.410:500.35:358:10Waxing Gibbous24Thu
25Fri5:532.76:293.512:170.311:55 AM0.35:368:09Waxing Gibbous25Fri
26Sat6:482.87:203.51:070.312:510.25:378:08Full Moon26Sat
27Sun7:373.08:063.51:520.21:400.25:388:07Full Moon27Sun
28Mon8:233.18:473.52:330.12:240.25:398:06Full Moon28Mon
29Tue9:063.19:263.43:080.13:020.25:408:05Full Moon29Tue
30Wed9:473.110:023.23:380.13:360.35:418:04Waning Gibbous30Wed
31Thu10:253.110:373.14:040.14:090.45:428:03Waning 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 4:49 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 neap phase. Tonight's moon is 52% 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 minimum.

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 (52% illuminated). This places Block Island, RI in a neap tide cycle, so tidal ranges are near their weekly minimum 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