41.1867’ N, 71.5783’ W

Block Island, RI

40°
H -°
L 36°
N
13mph
Low tide
3:21 am

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Friday, November 13, 2026
The tide is currently falling in Block Island, RI.
Next low tide (tomorrow) : in 4h 12m at 3:21 am (0.6 ft)
Next high tide (tomorrow) : 10:20 am (2.7 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 - Aug 1708

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:172.77:373.21:280.31:010.44:457:06Full Moon1Wed
2Thu7:532.88:093.22:010.31:390.34:467:05Full Moon2Thu
3Fri8:272.98:423.22:290.22:150.34:477:04Full Moon3Fri
4Sat9:032.99:163.12:530.22:500.44:487:03Waning Gibbous4Sat
5Sun9:403.09:533.03:160.23:270.54:497:02Waning Gibbous5Sun
6Mon10:203.110:362.83:450.24:090.64:507:01Waning Gibbous6Mon
7Tue11:043.111:242.74:200.25:000.64:516:59Third Quarter7Tue
8Wed11:533.15:030.36:030.74:526:58Third Quarter8Wed
9Thu12:172.612:473.25:540.37:250.74:536:57Third Quarter9Thu
10Fri1:172.51:493.26:540.39:000.64:546:55Third Quarter10Fri
11Sat2:252.53:003.38:010.310:110.44:556:54Waning Crescent11Sat
12Sun3:382.64:123.59:170.211:090.24:566:53Waning Crescent12Sun
13Mon4:442.95:143.710:310.04:576:51Waning Crescent13Mon
14Tue5:423.26:103.912:010.011:35 AM-0.24:586:50New Moon14Tue
15Wed6:353.47:014.012:49-0.212:34-0.34:596:49New Moon15Wed
16Thu7:263.77:504.01:34-0.31:29-0.45:006:47New Moon16Thu
17Fri8:153.88:363.82:15-0.42:20-0.35:016:46Waxing Crescent17Fri
18Sat9:033.89:223.52:53-0.33:09-0.25:026:44Waxing Crescent18Sat
19Sun9:513.710:083.23:27-0.23:580.15:036:43Waxing Crescent19Sun
20Mon10:403.510:552.93:590.04:530.35:046:41Waxing Crescent20Mon
21Tue11:303.311:452.64:310.35:570.65:056:40First Quarter21Tue
22Wed12:223.15:090.57:060.85:066:38First Quarter22Wed
23Thu12:372.31:192.95:550.78:140.95:076:37First Quarter23Thu
24Fri1:362.22:272.76:540.89:190.95:086:35First Quarter24Fri
25Sat2:492.13:402.78:200.910:150.95:096:34Waxing Gibbous25Sat
26Sun4:002.24:382.89:460.811:020.85:106:32Waxing Gibbous26Sun
27Mon4:532.35:242.910:410.711:430.65:116:31Waxing Gibbous27Mon
28Tue5:352.56:023.111:270.55:126:29Waxing Gibbous28Tue
29Wed6:122.76:353.212:200.512:080.45:136:28Full Moon29Wed
30Thu6:472.97:063.212:530.312:470.35:146:26Full Moon30Thu
31Fri7:213.17:383.31:220.21:230.25:156:24Full 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 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