41.1867’ N, 71.5783’ W

Block Island, RI

73°
H -°
L 67°
WSW
7mph
Low tide
7:27 pm

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Thursday, September 3, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 37m at 7:27 pm (0.6 ft)
Next high tide (tomorrow) : 1:19 am (2.6 ft)
Sunset today : 7:16 pm
Sunrise tomorrow : 6:15 am
Moon phase : Third Quarter (58% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jan 1897

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:383.66:012.812:18-0.47:124:28New Moon1Fri
2Sat6:313.66:522.91:07-0.57:124:29New Moon2Sat
3Sun7:213.67:413.012:50-0.51:52-0.57:124:30New Moon3Sun
4Mon8:083.58:283.01:39-0.52:33-0.57:124:31New Moon4Mon
5Tue8:523.49:142.92:23-0.43:11-0.47:124:32Waxing Crescent5Tue
6Wed9:363.19:592.83:04-0.23:44-0.37:124:33Waxing Crescent6Wed
7Thu10:182.810:452.73:440.04:15-0.17:114:34Waxing Crescent7Thu
8Fri11:012.511:312.54:270.24:450.07:114:35Waxing Crescent8Fri
9Sat11:452.35:210.45:200.27:114:36First Quarter9Sat
10Sun12:162.412:302.06:350.56:010.37:114:37First Quarter10Sun
11Mon1:022.31:201.97:550.66:500.47:114:38First Quarter11Mon
12Tue1:542.32:231.89:060.67:460.47:104:39First Quarter12Tue
13Wed3:012.33:361.810:060.58:510.47:104:40Waxing Gibbous13Wed
14Thu4:072.44:341.910:570.39:560.37:094:41Waxing Gibbous14Thu
15Fri4:582.65:192.111:430.210:510.17:094:42Waxing Gibbous15Fri
16Sat5:402.86:002.212:250.07:094:44Waxing Gibbous16Sat
17Sun6:192.96:402.51:04-0.17:084:45Full Moon17Sun
18Mon6:573.17:202.612:23-0.31:39-0.37:074:46Full Moon18Mon
19Tue7:363.28:012.81:06-0.42:10-0.47:074:47Full Moon19Tue
20Wed8:163.28:442.91:49-0.42:38-0.47:064:48Waning Gibbous20Wed
21Thu8:583.29:293.02:31-0.43:06-0.57:064:49Waning Gibbous21Thu
22Fri9:423.010:163.13:16-0.43:39-0.47:054:51Waning Gibbous22Fri
23Sat10:302.811:083.14:05-0.24:18-0.47:044:52Waning Gibbous23Sat
24Sun11:232.65:04-0.15:05-0.37:044:53Third Quarter24Sun
25Mon12:033.112:202.46:220.16:01-0.27:034:54Third Quarter25Mon
26Tue1:033.01:242.27:550.17:07-0.17:024:56Third Quarter26Tue
27Wed2:113.02:362.29:160.18:320.07:014:57Waning Crescent27Wed
28Thu3:263.03:522.310:220.010:00-0.17:004:58Waning Crescent28Thu
29Fri4:343.14:562.411:18-0.211:06-0.26:594:59Waning Crescent29Fri
30Sat5:313.25:502.712:08-0.36:585:01Waning Crescent30Sat
31Sun6:223.36:402.912:01-0.412:53-0.46:575:02New Moon31Sun
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 neap phase. Tonight's moon is 58% 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 minimum.

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 Third Quarter (58% illuminated). This places Block Island, RI in a neap tide cycle, so tidal ranges are near their weekly minimum 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