41.1867’ N, 71.5783’ W

Block Island, RI

47°
H 47°
L 37°
NNE
21mph
High tide
9:38 am

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Friday, November 13, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 3:44 pm (0.5 ft)
Next high tide : in 1h 35m at 9:38 am (2.9 ft)
Sunset today : 4:29 pm
Sunrise tomorrow : 6:32 am
Moon phase : Waxing Crescent (17% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Oct 1714

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:282.62:072.87:480.79:000.65:465:33Third Quarter1Mon
2Tue2:362.63:152.88:590.79:510.65:475:31Waning Crescent2Tue
3Wed3:392.74:122.89:570.610:340.55:485:29Waning Crescent3Wed
4Thu4:322.94:582.810:430.511:100.45:495:28Waning Crescent4Thu
5Fri5:163.05:362.911:230.411:410.35:505:26Waning Crescent5Fri
6Sat5:553.26:103.012:000.35:515:24New Moon6Sat
7Sun6:293.36:423.012:090.312:350.25:535:23New Moon7Sun
8Mon7:013.47:133.012:340.21:090.25:545:21New Moon8Mon
9Tue7:323.47:452.912:590.21:420.25:555:20New Moon9Tue
10Wed8:043.48:192.91:260.22:130.25:565:18Waxing Crescent10Wed
11Thu8:383.38:562.81:570.22:440.35:575:16Waxing Crescent11Thu
12Fri9:163.29:372.72:310.33:190.45:585:15Waxing Crescent12Fri
13Sat9:593.110:242.63:090.43:590.55:595:13Waxing Crescent13Sat
14Sun10:493.011:182.53:520.54:510.66:005:12First Quarter14Sun
15Mon11:453.04:450.66:000.76:015:10First Quarter15Mon
16Tue12:182.612:463.05:510.67:260.66:025:08First Quarter16Tue
17Wed1:212.71:523.07:120.68:360.46:045:07First Quarter17Wed
18Thu2:282.93:003.18:490.49:320.26:055:05Waxing Gibbous18Thu
19Fri3:343.24:043.310:030.210:20-0.16:065:04Waxing Gibbous19Fri
20Sat4:323.65:003.511:01-0.111:05-0.36:075:02Waxing Gibbous20Sat
21Sun5:253.95:523.611:54-0.311:49-0.56:085:01Full Moon21Sun
22Mon6:154.26:423.612:46-0.56:095:00Full Moon22Mon
23Tue7:044.37:323.612:33-0.51:36-0.56:104:58Full Moon23Tue
24Wed7:534.38:213.51:17-0.52:26-0.46:124:57Full Moon24Wed
25Thu8:434.19:113.32:01-0.43:15-0.26:134:55Waning Gibbous25Thu
26Fri9:333.810:033.12:45-0.24:080.06:144:54Waning Gibbous26Fri
27Sat10:273.410:592.93:300.15:110.36:154:53Waning Gibbous27Sat
28Sun11:253.111:592.74:220.36:200.56:164:51Third Quarter28Sun
29Mon12:262.85:370.67:220.66:184:50Third Quarter29Mon
30Tue1:012.61:282.67:160.78:180.66:194:49Third Quarter30Tue
31Wed2:042.62:322.58:270.79:080.66:204:47Third Quarter31Wed
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 17% 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 Waxing Crescent (17% 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