41.1867’ N, 71.5783’ W

Block Island, RI

67°
H -°
L 52°
W
10mph
High tide
10:48 pm

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, October 14, 2026
The tide is currently rising in Block Island, RI.
Next low tide (tomorrow) : 4:05 am (0.5 ft)
Next high tide : in 5h 19m at 10:48 pm (2.6 ft)
Sunset today : 6:07 pm
Sunrise tomorrow : 6:57 am
Moon phase : Waxing Crescent (16% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Aug 1810

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:023.08:093.22:040.21:400.24:447:07New Moon1Wed
2Thu8:363.08:423.12:310.22:160.34:457:06Waxing Crescent2Thu
3Fri9:123.09:173.12:520.22:510.34:467:05Waxing Crescent3Fri
4Sat9:493.09:553.03:160.23:290.44:477:04Waxing Crescent4Sat
5Sun10:303.010:392.93:470.34:120.54:487:03Waxing Crescent5Sun
6Mon11:153.011:272.84:250.35:020.64:497:01First Quarter6Mon
7Tue12:053.15:110.36:030.64:507:00First Quarter7Tue
8Wed12:212.71:003.16:050.47:160.64:516:59First Quarter8Wed
9Thu1:202.72:013.27:050.38:450.54:526:58First Quarter9Thu
10Fri2:262.73:093.48:130.39:590.34:536:56Waxing Gibbous10Fri
11Sat3:372.94:163.69:280.110:570.14:546:55Waxing Gibbous11Sat
12Sun4:423.15:153.910:39-0.111:49-0.24:556:54Waxing Gibbous12Sun
13Mon5:393.46:094.111:41-0.34:566:53Full Moon13Mon
14Tue6:333.77:014.212:38-0.412:39-0.44:576:51Full Moon14Tue
15Wed7:253.97:524.11:26-0.51:35-0.54:586:50Full Moon15Wed
16Thu8:153.98:414.02:10-0.52:27-0.44:596:48Waning Gibbous16Thu
17Fri9:053.99:303.72:51-0.43:18-0.35:006:47Waning Gibbous17Fri
18Sat9:563.810:203.43:31-0.34:120.05:016:46Waning Gibbous18Sat
19Sun10:483.611:123.14:11-0.15:160.35:026:44Waning Gibbous19Sun
20Mon11:423.34:530.26:260.55:036:43Third Quarter20Mon
21Tue12:052.812:383.15:420.47:330.75:046:41Third Quarter21Tue
22Wed1:022.61:382.96:390.68:360.75:056:40Third Quarter22Wed
23Thu2:032.52:452.87:480.79:340.85:066:38Third Quarter23Thu
24Fri3:102.43:512.89:000.710:250.75:076:37Waning Crescent24Fri
25Sat4:112.54:442.99:590.711:080.65:086:35Waning Crescent25Sat
26Sun5:002.65:273.010:460.611:480.55:096:33Waning Crescent26Sun
27Mon5:432.86:043.111:290.45:106:32Waning Crescent27Mon
28Tue6:202.96:363.212:240.412:090.35:116:30New Moon28Tue
29Wed6:563.17:073.212:580.312:470.25:126:29New Moon29Wed
30Thu7:293.27:393.21:270.21:230.25:136:27New Moon30Thu
31Fri8:043.38:133.21:510.11:580.25:146:26New Moon31Fri
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 16% 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 (16% 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