41.1867’ N, 71.5783’ W

Block Island, RI

63°
H -°
L 62°
SW
15mph
Low tide
3:30 am

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, October 13, 2026
The tide is currently falling in Block Island, RI.
Next low tide (tomorrow) : in 4h 29m at 3:30 am (0.3 ft)
Next high tide (tomorrow) : 10:28 am (3.2 ft)
Sunset today : 6:08 pm
Sunrise tomorrow : 6:56 am
Moon phase : Waxing Crescent (9% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Dec 1811

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:003.78:263.11:20-0.42:32-0.36:564:22Full Moon1Sun
2Mon8:443.59:123.01:59-0.33:12-0.26:574:22Waning Gibbous2Mon
3Tue9:283.39:592.82:37-0.13:520.06:584:22Waning Gibbous3Tue
4Wed10:133.010:492.63:160.14:360.26:594:22Waning Gibbous4Wed
5Thu11:002.711:412.53:580.35:310.47:004:21Waning Gibbous5Thu
6Fri11:482.54:490.56:320.57:014:21Third Quarter6Fri
7Sat12:342.412:382.35:580.77:260.57:024:21Third Quarter7Sat
8Sun1:282.31:302.27:340.78:150.57:024:21Third Quarter8Sun
9Mon2:262.42:302.28:470.69:010.57:034:21Third Quarter9Mon
10Tue3:222.53:312.29:460.59:420.47:044:21Waning Crescent10Tue
11Wed4:102.74:212.310:350.310:190.27:054:21Waning Crescent11Wed
12Thu4:512.95:042.411:190.210:550.17:064:21Waning Crescent12Thu
13Fri5:293.15:442.612:000.07:074:22Waning Crescent13Fri
14Sat6:083.36:252.712:40-0.27:074:22New Moon14Sat
15Sun6:483.47:072.812:09-0.21:19-0.37:084:22New Moon15Sun
16Mon7:303.57:512.912:50-0.31:56-0.37:094:22New Moon16Mon
17Tue8:143.68:383.01:33-0.42:34-0.47:104:23Waxing Crescent17Tue
18Wed9:013.59:263.02:17-0.33:13-0.37:104:23Waxing Crescent18Wed
19Thu9:503.410:193.03:03-0.33:57-0.37:114:23Waxing Crescent19Thu
20Fri10:433.211:153.03:55-0.14:48-0.27:114:24Waxing Crescent20Fri
21Sat11:403.04:580.05:49-0.17:124:24First Quarter21Sat
22Sun12:153.012:402.96:310.16:57-0.17:124:25First Quarter22Sun
23Mon1:173.01:432.78:070.18:03-0.17:134:25First Quarter23Mon
24Tue2:233.12:512.69:200.19:07-0.27:134:26Waxing Gibbous24Tue
25Wed3:313.23:582.710:22-0.110:05-0.27:144:26Waxing Gibbous25Wed
26Thu4:323.34:562.711:17-0.210:56-0.37:144:27Waxing Gibbous26Thu
27Fri5:253.45:482.812:07-0.37:154:28Waxing Gibbous27Fri
28Sat6:143.56:372.912:53-0.47:154:28Full Moon28Sat
29Sun7:003.57:233.012:27-0.41:36-0.47:154:29Full Moon29Sun
30Mon7:443.48:072.91:07-0.42:15-0.47:154:30Full Moon30Mon
31Tue8:253.38:512.81:45-0.32:50-0.37:164:30Waning Gibbous31Tue
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 9% 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 (9% 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