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Block Island (Old Harbor) tide times

Rhode Island · NOAA station 8459338 · times in local time
Tuesday, October 27: high tide 8:44 AM (4.0 ft) and 9:13 PM (3.2 ft); low tide 2:04 AM (-0.3 ft) and 3:13 PM (-0.2 ft).
next high tide
8:44 AM
4.0 ft
next low tide
2:04 AM
-0.3 ft
moon
–
 

Tide chart — today, Tue, Oct 27

Heights in feet above Mean Lower Low Water (MLLW). Dots are NOAA's predicted highs and lows; the line between them is our interpolation. Shaded: night.

TideTimeHeight
Low tide2:04 AM-0.33 ft
High tide8:44 AM4.03 ft
Low tide3:13 PM-0.22 ft
High tide9:13 PM3.17 ft

Block Island (Old Harbor) tide table — next 7 days

DayHigh tidesLow tides
Today
Tue, Oct 27		8:44 AM 4.0 ft9:13 PM 3.2 ft2:04 AM -0.3 ft3:13 PM -0.2 ft
Tomorrow
Wed, Oct 28		9:32 AM 4.0 ft10:02 PM 3.1 ft2:47 AM -0.3 ft3:59 PM -0.1 ft
Thu, Oct 2910:23 AM 3.8 ft10:56 PM 3.0 ft3:34 AM -0.2 ft4:53 PM 0.1 ft
Fri, Oct 3011:20 AM 3.6 ft11:55 PM 2.9 ft4:24 AM -0.1 ft6:05 PM 0.2 ft
Sat, Oct 3112:23 PM 3.4 ft5:22 AM 0.1 ft7:27 PM 0.3 ft
Sun, Nov 112:59 AM 2.8 ft12:29 PM 3.2 ft5:44 AM 0.3 ft7:36 PM 0.3 ft
Mon, Nov 21:06 AM 2.8 ft1:37 PM 3.0 ft7:30 AM 0.4 ft8:35 PM 0.3 ft

The year at Block Island (Old Harbor)

Highest tide, next 12 months4.1 ft on September 30, 2027 at 8:11 AM
Lowest tide, next 12 months-0.9 ft on January 23, 2027 at 1:27 AM
Minus tides (below 0 ft)141 days in the next 12 months
Tide patternTwo high and two low tides a day
Typical daily range3.1 ft (30-day average)
StationNOAA 8459338 · harmonic (reference) station · 41.1733, -71.5567

Moving water at dawn and dusk —

The current runs fastest roughly halfway between a high and a low tide. Many anglers prefer those hours when they fall near sunrise or sunset. This is a rule of thumb, not a fishing forecast.

Map

Nearby tide stations

Southwest Point, Block Island2.9 mi · RI Point Judith, Harbor of Refuge14 mi · RI Weekapaug Point, Block Island Sound15 mi · RI Narragansett Pier18 mi · RI Watch Hill Point18 mi · RI Westerly, Pawcatuck River20 mi · RI Lake Montauk21 mi · NY Beavertail Point21 mi · RI

All Rhode Island tide stations →

Questions about Block Island (Old Harbor) tides

What time is high tide at Block Island (Old Harbor) today?

On Tuesday, October 27, high tide at Block Island (Old Harbor) is at 8:44 AM (4.0 ft) and 9:13 PM (3.2 ft); low tide is at 2:04 AM (-0.3 ft) and 3:13 PM (-0.2 ft) (EDT, heights above MLLW). The table above lists the next 7 days.

When are the highest tides of the year at Block Island (Old Harbor)?

The highest predicted tide in the next 12 months is 4.1 ft on September 30, 2027 at 8:11 AM. The largest tides fall a day or two after a full or new moon, especially when the Moon is closest to Earth.

Are there minus tides at Block Island (Old Harbor)?

Yes — on 141 days in the next 12 months the low tide drops below 0 ft (MLLW). The lowest is -0.9 ft on January 23, 2027 at 1:27 AM. Minus tides expose the most shoreline, which is why tide-poolers look for them.

What time zone are these tide times in?

Station local time (EDT at the time this page was built), with daylight saving time applied where the area observes it — the same convention as NOAA's own tide tables.

Where does this tide data come from?

From NOAA CO-OPS, the U.S. government tide station network (tidesandcurrents.noaa.gov); the predictions are public domain. The curve between highs and lows is our interpolation. This page is not for navigation.