41.1867’ N, 71.5783’ W

Block Island, RI

56°
H 60°
L 48°
WNW
13mph
High tide
5:11 pm

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, October 6, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 11:45 pm (0.1 ft)
Next high tide : in 4h 30m at 5:11 pm (3.2 ft)
Sunset today : 6:20 pm
Sunrise tomorrow : 6:48 am
Moon phase : Waning Crescent (18% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jul 1827

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:153.05:270.36:060.64:207:26First Quarter1Sun
2Mon12:242.71:073.16:180.37:160.64:207:26First Quarter2Mon
3Tue1:212.72:063.27:130.28:370.54:217:26First Quarter3Tue
4Wed2:252.73:103.48:150.19:530.34:217:26Waxing Gibbous4Wed
5Thu3:342.84:143.79:210.010:550.04:227:26Waxing Gibbous5Thu
6Fri4:393.05:133.910:26-0.111:51-0.24:237:25Waxing Gibbous6Fri
7Sat5:383.26:094.111:28-0.34:237:25Full Moon7Sat
8Sun6:333.47:024.212:45-0.412:28-0.44:247:25Full Moon8Sun
9Mon7:273.67:554.21:36-0.51:26-0.44:257:24Full Moon9Mon
10Tue8:203.68:454.12:24-0.52:21-0.44:257:24Waning Gibbous10Tue
11Wed9:113.69:363.83:10-0.43:15-0.24:267:24Waning Gibbous11Wed
12Thu10:033.610:263.53:54-0.34:120.04:277:23Waning Gibbous12Thu
13Fri10:573.411:183.24:39-0.15:170.24:277:23Waning Gibbous13Fri
14Sat11:513.35:260.16:260.44:287:22Third Quarter14Sat
15Sun12:102.912:453.16:120.37:320.64:297:22Third Quarter15Sun
16Mon1:032.61:423.06:570.48:340.74:307:21Third Quarter16Mon
17Tue2:002.42:432.97:430.59:320.74:317:20Third Quarter17Tue
18Wed3:032.33:452.98:370.610:240.74:317:20Waning Crescent18Wed
19Thu4:052.34:392.99:340.611:110.64:327:19Waning Crescent19Thu
20Fri4:572.45:253.010:250.511:540.54:337:18Waning Crescent20Fri
21Sat5:422.66:043.111:110.44:347:18Waning Crescent21Sat
22Sun6:222.76:403.212:350.411:55 AM0.34:357:17New Moon22Sun
23Mon7:012.87:133.21:130.312:370.34:367:16New Moon23Mon
24Tue7:372.97:463.31:480.21:170.24:377:15New Moon24Tue
25Wed8:133.08:203.22:170.21:550.24:387:14New Moon25Wed
26Thu8:503.08:563.22:410.22:320.34:397:13Waxing Crescent26Thu
27Fri9:293.19:363.13:030.23:100.34:397:12Waxing Crescent27Fri
28Sat10:113.110:193.03:320.23:520.44:407:11Waxing Crescent28Sat
29Sun10:573.111:082.94:080.24:420.54:417:10Waxing Crescent29Sun
30Mon11:473.24:520.25:410.54:427:09First Quarter30Mon
31Tue12:012.812:423.25:440.26:540.54:437:08First 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 18% 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 (18% 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