Nearby Harbors
41.1867’ N, 71.5783’ W

Block Island, RI

46°
H 55°
L 51°
N
5mph
High tide
12:29 pm
Photo Credits

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Sunday, November 1, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 7:36 pm (0.3 ft)
Next high tide : in 4h 33m at 12:29 pm (3.2 ft)
Sunset today : 4:42 pm
Sunrise tomorrow : 6:17 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Featured Local Businesses

New Harbor Great Salt Pond Block Island Aerial

New Shoreham (Block Island) Harbormaster
Champlins Marina Resort, docks filled on a sunny summer day

Champlin's Marina & Resort
Coast Guard Station, Point Judith Rhode Island,

USCG Station Point Judith, RI
Beach in East Hampton, NY -- Nicole Mayone, CC BY-SA 2.0 , via Wikimedia Commons

East Hampton Harbormaster

Block Island, RI Tides - Mar 1781

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:112.111:272.54:440.34:430.26:235:41First Quarter1Thu
2Fri12:001.95:360.55:310.36:225:43First Quarter2Fri
3Sat12:182.412:571.96:470.66:300.36:205:44First Quarter3Sat
4Sun1:192.42:051.98:560.57:390.36:195:45First Quarter4Sun
5Mon2:342.53:222.010:060.39:010.26:175:46Waxing Gibbous5Mon
6Tue3:522.74:292.310:570.110:19-0.16:155:47Waxing Gibbous6Tue
7Wed4:553.05:232.711:41-0.211:20-0.46:145:48Waxing Gibbous7Wed
8Thu5:473.36:133.112:22-0.56:125:49Full Moon8Thu
9Fri6:363.57:013.512:16-0.61:02-0.76:105:50Full Moon9Fri
10Sat7:233.67:483.71:08-0.81:39-0.86:095:52Full Moon10Sat
11Sun8:103.58:363.81:59-0.92:16-0.86:075:53Full Moon11Sun
12Mon8:573.49:243.82:48-0.82:52-0.86:055:54Waning Gibbous12Mon
13Tue9:463.110:143.63:39-0.73:29-0.66:045:55Waning Gibbous13Tue
14Wed10:372.811:083.44:35-0.44:10-0.36:025:56Waning Gibbous14Wed
15Thu11:322.55:44-0.14:580.06:005:57Third Quarter15Thu
16Fri12:073.112:332.27:030.26:030.25:595:58Third Quarter16Fri
17Sat1:142.81:402.18:180.37:560.45:575:59Third Quarter17Sat
18Sun2:302.62:582.19:260.49:260.45:556:00Third Quarter18Sun
19Mon3:462.54:072.210:230.410:290.35:546:01Waning Crescent19Mon
20Tue4:452.65:012.411:090.311:180.25:526:02Waning Crescent20Tue
21Wed5:322.75:462.611:480.25:506:03Waning Crescent21Wed
22Thu6:112.76:252.812:000.112:200.05:496:05Waning Crescent22Thu
23Fri6:462.87:002.912:360.012:49-0.15:476:06New Moon23Fri
24Sat7:182.87:313.01:10-0.11:14-0.25:456:07New Moon24Sat
25Sun7:492.88:013.01:42-0.11:36-0.25:446:08New Moon25Sun
26Mon8:192.78:293.02:11-0.12:00-0.25:426:09New Moon26Mon
27Tue8:502.68:593.02:390.02:26-0.15:406:10Waxing Crescent27Tue
28Wed9:242.59:332.93:080.12:560.05:396:11Waxing Crescent28Wed
29Thu10:022.310:112.83:390.23:310.15:376:12Waxing Crescent29Thu
30Fri10:452.210:572.74:170.34:110.25:356:13Waxing Crescent30Fri
31Sat11:372.111:522.65:060.55:010.35:346:14First Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8459338)

www.USHarbors.com

© 2026 US Harbors LLC All rights reserved

The US Harbors tide chart design is protected by copyright. It may be printed for personal use only.
Any commercial use, modification, redistribution, or repackaging without written permission is strictly prohibited.

Common Questions About Block Island, RI Tides

Collapse All
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 52% 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 (52% 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

Coastal Stories See All

A signboard thanking patrons at Tuna Harbor Dockside Market in San Diego. Credit: Tuna Harbor Dockside Market.

America First Seafood Strategy: Strengthening U.S. Fisheries, Coastal Economies, and Food Security

By fisheries.noaa.gov, fisheries.noaa.gov. The United States manages some of the world’s most productive and sustainable… More

Coastal NewsMarine Economy

North Atlantic right whale and her 2026 calf swimming off the Florida coast

Right Whale Speed Zones Take Effect Nov 1 2026

By US Harbors Starting November 1, most vessels 65 feet and longer must slow to… More

BoatingCoastal NewsOcean Science

Image Credits: Pixino.

Stray Current vs. Galvanic Corrosion: What Every Boat Owner Needs to Know

By Captain Ken Kreisler, Best4Boats.com. If you keep a boat in a marina — or… More

Boating

Restored oyster reefs are monitored to ensure the oysters that grow there are thriving. Photo: Oyster Recovery Partnership.

Celebrating Oysters During Oyster Week

By fisheries.noaa.gov, fisheries.noaa.gov. Oysters are great multitaskers! They provide many benefits to the ecosystem they… More

Marine EconomyOcean Science

A snow-Tanner hybrid crab collected during the 2026 eastern Bering Sea bottom trawl survey. Hybrid crab exhibit intermediate morphological traits—such as a curved mouth—relative to snow and Tanner crab parent species. Credit: NOAA Fisheries / Leah Zacher

Marine Heatwave Triggered a Hybrid Crab Surge in the Bering Sea

By fisheries.noaa.gov, fisheries.noaa.gov. A team of scientists at the Alaska Fisheries Science Center’s Kodiak Laboratory… More

Ocean Science

A car drives through a snowstorm in Broomfield, Colorado, in 2024. (Image credit: Bob Hyatt/NOAA)

El Nino looms large over U.S. Winter Outlook

By noaa.gov, noaa.gov. NOAA’s U.S. Winter Outlook, released today, shows how El Nino will likely influence the… More

Coastal NewsWeather & Tides

Archival photo of New England swordfishing vessel (left) courtesy of NOAA Fisheries; Background photo and photo offloading fish (right) courtesy of Hawaii Longline Association/Eric Kingma

Highly Migratory Species Management: Managing Shared Resources at Home and Around the World

By fisheries.noaa.gov, fisheries.noaa.gov. Highly migratory species—like Atlantic yellowfin tuna, Pacific albacore, and Atlantic swordfish—travel thousands of miles across… More

Coastal NewsOcean Science

A freediver from the Papahānaumokuākea Marine Debris Project works to carefully remove a ghost net from the reef at Kamokuokamohoali‘i (Maro Reef) in Hawaii. (Image credit: Andrew Sullivan-Hawkins/Papahānaumokuākea Marine Debris Project (Under permit # PMNM-2024-003))

Large-scale Marine Debris: 4 Ways to Clean up the Big Stuff

By fisheries.noaa.gov, fisheries.noaa.gov. Marine debris is a challenging problem. Across the country, NOAA and partners… More

Coastal NewsOcean Science

Map showing sea surface height anomalies using Darker reds to show sea levels higher than normal, while darker blues show heights below normal

Kelvin Waves, Explained

By fisheries.noaa.gov, fisheries.noaa.gov. You may be hearing a lot about Kelvin waves in the news.… More

Coastal NewsOcean ScienceWeather & Tides

Your Privacy Choices