41.1867’ N, 71.5783’ W

Block Island, RI

42°
H 57°
L 47°
NNW
1mph
High tide
6:34 am

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Saturday, October 24, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 1:03 pm (0.0 ft)
Next high tide : in 1m at 6:34 am (3.5 ft)
Sunset today : 5:52 pm
Sunrise tomorrow : 7:08 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Aug 1794

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:062.811:082.74:200.44:390.74:457:06Waxing Crescent1Fri
2Sat11:472.711:502.54:560.55:320.84:467:05First Quarter2Sat
3Sun12:292.75:390.66:360.84:477:04First Quarter3Sun
4Mon12:362.41:162.76:270.67:540.84:487:03First Quarter4Mon
5Tue1:292.32:112.87:200.69:120.84:497:02First Quarter5Tue
6Wed2:302.33:143.08:190.610:110.64:507:00Waxing Gibbous6Wed
7Thu3:372.54:153.29:230.511:010.44:516:59Waxing Gibbous7Thu
8Fri4:372.75:083.410:230.311:470.24:526:58Waxing Gibbous8Fri
9Sat5:292.95:573.711:180.04:536:57Full Moon9Sat
10Sun6:193.26:463.912:310.012:11-0.14:546:55Full Moon10Sun
11Mon7:083.57:344.01:14-0.21:03-0.34:556:54Full Moon11Mon
12Tue7:573.68:224.01:55-0.41:55-0.34:566:53Full Moon12Tue
13Wed8:473.89:113.92:35-0.42:47-0.34:576:51Waning Gibbous13Wed
14Thu9:373.810:023.73:16-0.43:41-0.24:586:50Waning Gibbous14Thu
15Fri10:313.810:563.43:59-0.34:450.04:596:49Waning Gibbous15Fri
16Sat11:273.711:533.14:48-0.16:060.25:006:47Third Quarter16Sat
17Sun12:263.55:440.17:240.35:016:46Third Quarter17Sun
18Mon12:532.91:293.46:500.28:350.45:026:44Third Quarter18Mon
19Tue1:572.82:383.38:030.39:400.45:036:43Third Quarter19Tue
20Wed3:072.73:483.29:170.410:360.45:046:41Waning Crescent20Wed
21Thu4:122.84:473.310:190.411:260.35:056:40Waning Crescent21Thu
22Fri5:072.95:373.311:110.35:066:38Waning Crescent22Fri
23Sat5:563.06:223.312:100.311:56 AM0.35:076:37New Moon23Sat
24Sun6:403.17:023.312:490.212:360.25:086:35New Moon24Sun
25Mon7:213.27:383.31:240.21:120.25:096:34New Moon25Mon
26Tue8:003.28:123.31:540.11:450.25:106:32New Moon26Tue
27Wed8:363.28:443.12:190.22:170.35:116:31Waxing Crescent27Wed
28Thu9:103.19:173.02:410.22:490.35:126:29Waxing Crescent28Thu
29Fri9:443.09:512.83:050.33:250.55:136:27Waxing Crescent29Fri
30Sat10:202.910:292.73:340.44:040.65:146:26Waxing Crescent30Sat
31Sun10:592.911:132.54:090.54:500.75:156:24First Quarter31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8459338)

Common Questions About Block Island, RI Tides

Collapse All
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