41.1867’ N, 71.5783’ W

Block Island, RI

63°
H 64°
L 56°
SW
13mph
Low tide
4:53 pm

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Thursday, October 29, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 2h 21m at 4:53 pm (0.0 ft)
Next high tide : 10:56 pm (3.0 ft)
Sunset today : 5:45 pm
Sunrise tomorrow : 7:14 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jan 1785

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:532.411:352.34:200.44:510.27:164:33Third Quarter1Sat
2Sun11:352.25:120.55:300.37:164:33Third Quarter2Sun
3Mon12:182.312:202.06:160.66:140.37:164:34Third Quarter3Mon
4Tue1:042.41:121.97:340.67:040.47:164:35Third Quarter4Tue
5Wed1:572.42:131.98:590.58:010.37:164:36Third Quarter5Wed
6Thu2:592.63:221.910:040.39:040.27:164:37Waning Crescent6Thu
7Fri4:022.84:252.110:560.110:060.07:164:38Waning Crescent7Fri
8Sat4:583.05:192.311:44-0.111:02-0.27:164:39Waning Crescent8Sat
9Sun5:483.36:092.612:30-0.37:154:40New Moon9Sun
10Mon6:373.56:582.81:14-0.57:154:41New Moon10Mon
11Tue7:253.77:473.012:48-0.61:56-0.67:154:42New Moon11Tue
12Wed8:133.78:363.21:39-0.72:36-0.77:144:43Waxing Crescent12Wed
13Thu9:013.69:263.22:30-0.73:15-0.77:144:45Waxing Crescent13Thu
14Fri9:503.410:183.33:22-0.63:56-0.67:144:46Waxing Crescent14Fri
15Sat10:423.111:133.24:21-0.44:39-0.57:134:47Waxing Crescent15Sat
16Sun11:362.75:35-0.15:27-0.37:134:48First Quarter16Sun
17Mon12:103.112:342.47:000.06:22-0.17:124:49First Quarter17Mon
18Tue1:113.01:362.28:170.17:250.07:124:50First Quarter18Tue
19Wed2:192.92:472.19:280.28:420.17:114:51Waxing Gibbous19Wed
20Thu3:322.83:572.110:300.19:560.17:104:53Waxing Gibbous20Thu
21Fri4:372.84:562.211:230.110:550.07:104:54Waxing Gibbous21Fri
22Sat5:312.95:472.412:090.07:094:55Waxing Gibbous22Sat
23Sun6:172.96:322.512:50-0.17:084:56Full Moon23Sun
24Mon6:582.97:142.612:26-0.11:27-0.27:084:58Full Moon24Mon
25Tue7:352.97:532.71:04-0.21:59-0.27:074:59Full Moon25Tue
26Wed8:082.98:302.71:38-0.22:26-0.27:065:00Full Moon26Wed
27Thu8:392.89:042.72:09-0.22:49-0.27:055:01Waning Gibbous27Thu
28Fri9:092.79:372.62:41-0.13:10-0.27:045:02Waning Gibbous28Fri
29Sat9:402.510:102.53:150.03:33-0.17:035:04Waning Gibbous29Sat
30Sun10:142.310:462.53:520.14:020.07:025:05Waning Gibbous30Sun
31Mon10:532.211:262.44:330.34:360.17:015:06Third Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8459338)

Common Questions About Block Island, RI Tides

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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 84% 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 (84% 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