41.1867’ N, 71.5783’ W

Block Island, RI

63°
H 68°
L 59°
NNE
10mph
Low tide
9:32 am

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Sunday, September 6, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 25m at 9:32 am (0.4 ft)
Next high tide : 4:18 pm (3.3 ft)
Sunset today : 7:11 pm
Sunrise tomorrow : 6:18 am
Moon phase : Waning Crescent (24% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Dec 1883

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:063.28:252.71:230.02:250.06:524:18New Moon1Sat
2Sun8:423.19:052.61:590.12:550.16:534:18Waxing Crescent2Sun
3Mon9:223.09:482.62:370.13:280.16:544:18Waxing Crescent3Mon
4Tue10:062.910:362.63:190.24:060.26:554:17Waxing Crescent4Tue
5Wed10:552.811:292.64:060.34:530.26:564:17First Quarter5Wed
6Thu11:492.75:030.45:480.26:574:17First Quarter6Thu
7Fri12:252.712:472.76:150.46:490.16:584:17First Quarter7Fri
8Sat1:252.91:502.77:480.47:510.06:594:17First Quarter8Sat
9Sun2:283.12:572.79:180.28:56-0.17:004:17Waxing Gibbous9Sun
10Mon3:343.34:032.810:23-0.19:57-0.37:014:17Waxing Gibbous10Mon
11Tue4:343.65:033.011:19-0.310:53-0.57:014:17Waxing Gibbous11Tue
12Wed5:293.85:573.212:11-0.57:024:17Full Moon12Wed
13Thu6:224.06:493.31:03-0.67:034:18Full Moon13Thu
14Fri7:134.07:403.312:37-0.71:52-0.77:044:18Full Moon14Fri
15Sat8:033.98:313.31:28-0.72:38-0.67:044:18Full Moon15Sat
16Sun8:533.79:213.22:17-0.53:24-0.57:054:18Waning Gibbous16Sun
17Mon9:423.410:123.03:04-0.44:10-0.37:064:19Waning Gibbous17Mon
18Tue10:323.111:062.93:53-0.15:00-0.17:064:19Waning Gibbous18Tue
19Wed11:232.84:500.25:530.17:074:19Third Quarter19Wed
20Thu12:012.712:152.56:060.46:460.27:084:20Third Quarter20Thu
21Fri12:572.61:082.37:210.57:350.37:084:20Third Quarter21Fri
22Sat1:552.52:062.18:270.58:240.47:094:21Third Quarter22Sat
23Sun2:552.53:112.09:260.59:120.47:094:21Waning Crescent23Sun
24Mon3:532.64:092.110:170.49:570.37:094:22Waning Crescent24Mon
25Tue4:422.74:562.211:030.310:390.27:104:22Waning Crescent25Tue
26Wed5:232.85:362.311:450.111:170.17:104:23Waning Crescent26Wed
27Thu6:002.96:132.412:260.07:114:24New Moon27Thu
28Fri6:353.06:492.51:04-0.17:114:24New Moon28Fri
29Sat7:103.17:262.612:32-0.11:39-0.27:114:25New Moon29Sat
30Sun7:463.28:042.71:10-0.22:10-0.27:114:26New Moon30Sun
31Mon8:233.18:452.71:47-0.22:38-0.27:114:27Waxing Crescent31Mon
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 transitional phase. Tonight's moon is 24% 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 shifting between spring and neap.

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 (24% illuminated). This places Block Island, RI in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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