Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Block Island, RI.
Next low tide (tomorrow) : in 5h 41m at 4:01 am (0.3 ft)
Next high tide (tomorrow) : 9:55 am (2.7 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:17 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Dec 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:453.25:080.06:370.06:524:18Third Quarter1Mon
2Tue12:253.012:473.06:470.27:410.06:534:17Third Quarter2Tue
3Wed1:293.01:522.88:090.28:390.06:544:17Third Quarter3Wed
4Thu2:353.12:592.79:180.29:330.06:554:17Waning Crescent4Thu
5Fri3:393.24:022.610:170.110:210.06:564:17Waning Crescent5Fri
6Sat4:353.34:552.711:080.011:040.06:574:17Waning Crescent6Sat
7Sun5:243.35:422.711:530.011:41-0.16:584:17Waning Crescent7Sun
8Mon6:083.46:262.812:35-0.16:594:17New Moon8Mon
9Tue6:503.47:062.812:15-0.11:12-0.17:004:17New Moon9Tue
10Wed7:293.37:462.712:45-0.11:47-0.17:014:17New Moon10Wed
11Thu8:053.28:232.71:160.02:18-0.17:014:17New Moon11Thu
12Fri8:403.19:002.61:490.02:480.07:024:17Waxing Crescent12Fri
13Sat9:152.99:382.52:240.13:180.17:034:17Waxing Crescent13Sat
14Sun9:512.710:182.43:010.23:510.27:044:18Waxing Crescent14Sun
15Mon10:312.611:012.33:420.44:310.37:044:18Waxing Crescent15Mon
16Tue11:152.511:482.34:280.55:160.37:054:18First Quarter16Tue
17Wed12:032.35:240.66:070.47:064:19First Quarter17Wed
18Thu12:372.312:552.36:330.67:000.37:064:19First Quarter18Thu
19Fri1:302.41:532.38:050.67:560.27:074:19First Quarter19Fri
20Sat2:292.62:572.39:280.48:530.17:074:20Waxing Gibbous20Sat
21Sun3:302.94:002.510:240.19:49-0.17:084:20Waxing Gibbous21Sun
22Mon4:273.24:562.711:14-0.110:41-0.47:084:21Waxing Gibbous22Mon
23Tue5:193.55:482.912:02-0.47:094:21Waxing Gibbous23Tue
24Wed6:103.76:393.112:50-0.67:094:22Full Moon24Wed
25Thu7:003.97:293.312:22-0.71:37-0.77:104:23Full Moon25Thu
26Fri7:514.08:203.31:14-0.82:24-0.77:104:23Full Moon26Fri
27Sat8:423.99:123.32:06-0.83:11-0.77:104:24Waning Gibbous27Sat
28Sun9:333.710:063.32:58-0.74:00-0.67:114:25Waning Gibbous28Sun
29Mon10:273.411:033.23:53-0.54:56-0.47:114:25Waning Gibbous29Mon
30Tue11:243.15:02-0.25:58-0.27:114:26Third Quarter30Tue
31Wed12:033.112:232.86:280.07:01-0.17:114:27Third Quarter31Wed
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 6:58 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 97% 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 Full Moon (97% 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