41.1867’ N, 71.5783’ W

Block Island, RI

77°
H 79°
L 68°
SW
10mph
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 4h 00m 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 1898

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:172.62:392.09:130.58:170.37:124:28First Quarter1Sat
2Sun3:222.53:441.910:090.49:140.37:124:29Waxing Gibbous2Sun
3Mon4:202.64:402.010:570.410:080.37:124:30Waxing Gibbous3Mon
4Tue5:092.65:262.111:410.310:540.27:124:31Waxing Gibbous4Tue
5Wed5:512.76:072.312:220.17:124:32Waxing Gibbous5Wed
6Thu6:282.86:452.41:010.07:124:33Full Moon6Thu
7Fri7:022.97:212.512:180.01:37-0.17:114:34Full Moon7Fri
8Sat7:342.97:572.512:58-0.12:09-0.17:114:35Full Moon8Sat
9Sun8:073.08:322.61:35-0.22:36-0.17:114:36Full Moon9Sun
10Mon8:412.99:102.62:12-0.12:58-0.17:114:37Waning Gibbous10Mon
11Tue9:172.89:502.72:49-0.13:22-0.17:114:38Waning Gibbous11Tue
12Wed9:582.710:342.73:290.03:53-0.17:104:39Waning Gibbous12Wed
13Thu10:432.611:222.74:140.14:31-0.17:104:40Waning Gibbous13Thu
14Fri11:342.45:090.25:18-0.17:104:41Third Quarter14Fri
15Sat12:152.812:302.36:160.26:13-0.17:094:42Third Quarter15Sat
16Sun1:132.91:332.27:440.27:17-0.17:094:43Third Quarter16Sun
17Mon2:182.92:452.29:170.18:30-0.17:084:44Waning Crescent17Mon
18Tue3:303.13:582.410:25-0.19:50-0.27:084:46Waning Crescent18Tue
19Wed4:373.35:022.611:22-0.310:59-0.47:074:47Waning Crescent19Wed
20Thu5:353.55:582.912:14-0.57:064:48New Moon20Thu
21Fri6:293.76:503.11:02-0.77:064:49New Moon21Fri
22Sat7:193.77:403.312:55-0.71:47-0.87:054:50New Moon22Sat
23Sun8:063.68:283.31:46-0.82:28-0.87:044:52New Moon23Sun
24Mon8:523.59:153.32:34-0.73:04-0.77:044:53Waxing Crescent24Mon
25Tue9:373.210:013.13:19-0.53:38-0.57:034:54Waxing Crescent25Tue
26Wed10:222.810:492.94:05-0.24:08-0.37:024:55Waxing Crescent26Wed
27Thu11:082.511:372.74:560.04:40-0.17:014:57First Quarter27Thu
28Fri11:562.26:020.35:170.17:004:58First Quarter28Fri
29Sat12:272.512:471.97:160.56:030.37:004:59First Quarter29Sat
30Sun1:212.31:471.88:280.56:590.46:595:00First Quarter30Sun
31Mon2:312.23:011.79:340.58:100.46:585:01Waxing Gibbous31Mon
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