41.1867’ N, 71.5783’ W

Block Island, RI

58°
H 64°
L 59°
SSW
4mph
Low tide
11:58 am

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, October 7, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 1h 41m at 11:58 am (0.1 ft)
Next high tide : 6:03 pm (3.3 ft)
Sunset today : 6:18 pm
Sunrise tomorrow : 6:49 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jan 1826

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:253.012:402.66:340.26:35-0.17:164:32Third Quarter1Sun
2Mon1:253.01:442.58:090.17:43-0.17:164:33Third Quarter2Mon
3Tue2:323.12:552.49:260.09:01-0.17:164:33Waning Crescent3Tue
4Wed3:413.24:052.510:29-0.110:11-0.27:164:34Waning Crescent4Wed
5Thu4:433.45:052.711:24-0.311:10-0.47:164:35Waning Crescent5Thu
6Fri5:383.55:592.912:15-0.47:164:36New Moon6Fri
7Sat6:293.66:493.012:03-0.51:02-0.57:164:37New Moon7Sat
8Sun7:173.67:373.112:53-0.51:45-0.57:164:38New Moon8Sun
9Mon8:023.58:223.01:38-0.52:24-0.57:154:39New Moon9Mon
10Tue8:453.39:063.02:19-0.42:58-0.47:154:40Waxing Crescent10Tue
11Wed9:263.19:492.82:55-0.23:28-0.37:154:41Waxing Crescent11Wed
12Thu10:062.810:322.73:30-0.13:55-0.27:154:42Waxing Crescent12Thu
13Fri10:472.511:152.54:070.24:250.07:144:43Waxing Crescent13Fri
14Sat11:302.311:582.44:520.35:020.17:144:45First Quarter14Sat
15Sun12:142.15:530.55:460.27:144:46First Quarter15Sun
16Mon12:432.31:031.97:290.66:370.37:134:47First Quarter16Mon
17Tue1:342.22:021.88:490.67:340.47:134:48First Quarter17Tue
18Wed2:382.33:131.89:520.58:410.37:124:49Waxing Gibbous18Wed
19Thu3:482.44:161.910:440.39:490.27:124:50Waxing Gibbous19Thu
20Fri4:422.65:052.111:300.110:440.07:114:51Waxing Gibbous20Fri
21Sat5:252.85:472.412:110.07:104:53Waxing Gibbous21Sat
22Sun6:063.06:292.612:50-0.27:104:54Full Moon22Sun
23Mon6:463.27:102.812:16-0.41:25-0.47:094:55Full Moon23Mon
24Tue7:273.37:533.01:01-0.51:56-0.57:084:56Full Moon24Tue
25Wed8:093.38:383.21:44-0.62:26-0.67:074:57Full Moon25Wed
26Thu8:533.39:233.22:28-0.62:58-0.67:074:59Waning Gibbous26Thu
27Fri9:393.110:123.23:14-0.53:34-0.67:065:00Waning Gibbous27Fri
28Sat10:292.911:053.24:03-0.34:16-0.57:055:01Waning Gibbous28Sat
29Sun11:232.75:04-0.25:05-0.37:045:02Third Quarter29Sun
30Mon12:023.112:212.56:270.06:04-0.27:035:04Third Quarter30Mon
31Tue1:043.01:252.37:580.17:18-0.17:025:05Third Quarter31Tue
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 10% 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 Waning Crescent (10% 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