41.1867’ N, 71.5783’ W

Block Island, RI

64°
H 67°
L 52°
W
12mph
Low tide
1:32 pm

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Friday, October 9, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 2h 01m at 1:32 pm (0.0 ft)
Next high tide : 7:32 pm (3.3 ft)
Sunset today : 6:15 pm
Sunrise tomorrow : 6:51 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jul 1821

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:383.18:593.52:50-0.12:220.04:207:26Waxing Crescent1Sun
2Mon9:263.19:433.33:310.03:050.24:217:26Waxing Crescent2Mon
3Tue10:133.010:253.14:090.13:480.44:217:26Waxing Crescent3Tue
4Wed11:012.911:072.84:460.34:350.54:227:26Waxing Crescent4Wed
5Thu11:472.811:482.65:190.45:300.74:227:26First Quarter5Thu
6Fri12:322.85:500.56:330.84:237:25First Quarter6Fri
7Sat12:292.41:152.76:230.67:380.84:247:25First Quarter7Sat
8Sun1:132.22:012.77:020.68:450.84:247:25First Quarter8Sun
9Mon2:052.12:562.87:480.79:470.84:257:24Waxing Gibbous9Mon
10Tue3:092.13:542.98:420.610:410.74:267:24Waxing Gibbous10Tue
11Wed4:122.24:463.09:400.611:300.54:267:23Waxing Gibbous11Wed
12Thu5:042.35:323.210:350.54:277:23Waxing Gibbous12Thu
13Fri5:502.56:163.312:160.411:26 AM0.34:287:22Full Moon13Fri
14Sat6:342.77:003.512:590.312:150.24:297:22Full Moon14Sat
15Sun7:192.97:433.61:390.11:040.14:297:21Full Moon15Sun
16Mon8:043.08:263.62:160.01:510.04:307:21Full Moon16Mon
17Tue8:503.29:113.62:50-0.12:380.04:317:20Waning Gibbous17Tue
18Wed9:383.39:583.43:24-0.13:270.14:327:19Waning Gibbous18Wed
19Thu10:283.410:483.24:00-0.14:230.24:337:19Waning Gibbous19Thu
20Fri11:213.411:413.04:42-0.15:320.34:347:18Third Quarter20Fri
21Sat12:163.55:290.06:560.44:347:17Third Quarter21Sat
22Sun12:372.81:143.46:220.18:160.54:357:16Third Quarter22Sun
23Mon1:382.62:183.47:200.29:280.44:367:16Third Quarter23Mon
24Tue2:472.63:293.48:280.210:310.44:377:15Waning Crescent24Tue
25Wed3:582.64:353.59:440.211:270.34:387:14Waning Crescent25Wed
26Thu5:002.75:333.510:510.24:397:13Waning Crescent26Thu
27Fri5:552.96:253.612:180.211:49 AM0.14:407:12New Moon27Fri
28Sat6:453.17:113.61:040.112:410.14:417:11New Moon28Sat
29Sun7:323.27:543.51:460.01:270.14:427:10New Moon29Sun
30Mon8:173.28:343.42:230.02:070.14:437:09New Moon30Mon
31Tue8:593.29:113.22:550.02:440.24:447:08Waxing Crescent31Tue
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 1% 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 New Moon (1% 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