Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 3:29 pm (0.4 ft)
Next high tide : in 47m at 9:55 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 - May 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:263.03:112.89:330.29:260.35:437:43First Quarter1Tue
2Wed3:373.04:203.010:320.110:470.15:427:44Waxing Gibbous2Wed
3Thu4:473.05:223.311:23-0.111:48-0.15:407:45Waxing Gibbous3Thu
4Fri5:463.16:163.612:08-0.25:397:46Waxing Gibbous4Fri
5Sat6:383.27:053.812:42-0.212:50-0.35:387:47Waxing Gibbous5Sat
6Sun7:273.27:523.91:32-0.31:28-0.35:377:48Full Moon6Sun
7Mon8:133.28:363.82:19-0.32:05-0.35:357:49Full Moon7Mon
8Tue8:583.19:193.73:02-0.32:39-0.25:347:50Full Moon8Tue
9Wed9:412.910:023.53:42-0.23:110.05:337:51Waning Gibbous9Wed
10Thu10:252.810:443.24:190.03:450.15:327:52Waning Gibbous10Thu
11Fri11:102.611:283.04:570.24:220.35:317:53Waning Gibbous11Fri
12Sat11:572.45:400.45:040.55:307:54Waning Gibbous12Sat
13Sun12:152.712:482.36:400.55:540.75:297:55Third Quarter13Sun
14Mon1:052.61:412.27:480.67:000.85:287:56Third Quarter14Mon
15Tue1:582.42:362.28:470.68:370.95:277:57Third Quarter15Tue
16Wed2:552.43:362.39:380.610:010.85:267:58Third Quarter16Wed
17Thu3:582.44:332.510:230.511:000.65:257:59Waning Crescent17Thu
18Fri4:542.45:192.711:010.411:480.45:248:00Waning Crescent18Fri
19Sat5:402.65:593.011:350.35:238:01Waning Crescent19Sat
20Sun6:212.76:373.312:320.312:080.15:238:02Waning Crescent20Sun
21Mon7:022.87:173.51:150.112:430.05:228:03New Moon21Mon
22Tue7:442.97:593.71:57-0.11:22-0.15:218:04New Moon22Tue
23Wed8:283.08:433.82:38-0.22:03-0.25:208:05New Moon23Wed
24Thu9:143.09:303.83:19-0.22:47-0.25:208:06New Moon24Thu
25Fri10:033.010:193.74:02-0.23:33-0.25:198:07Waxing Crescent25Fri
26Sat10:543.011:123.64:49-0.14:23-0.15:188:07Waxing Crescent26Sat
27Sun11:503.05:470.05:180.15:188:08Waxing Crescent27Sun
28Mon12:093.412:503.06:570.16:280.25:178:09First Quarter28Mon
29Tue1:093.31:513.08:040.18:000.35:178:10First Quarter29Tue
30Wed2:113.12:553.19:030.19:260.35:168:11First Quarter30Wed
31Thu3:162.94:003.29:590.110:370.25:168:12Waxing 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 12:42 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 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