TornadoLiveMap

Chowiet Island, Semidi Island tide times

Alaska · NOAA station 9458519 · times in local time
Tuesday, October 27: high tide 1:45 AM (8.7 ft) and 1:12 PM (10.8 ft); low tide 7:10 AM (2.5 ft) and 8:01 PM (-2.1 ft).
next high tide
1:45 AM
8.7 ft
next low tide
7:10 AM
2.5 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
High tide1:45 AM8.72 ft
Low tide7:10 AM2.48 ft
High tide1:12 PM10.77 ft
Low tide8:01 PM-2.14 ft

Chowiet Island, Semidi Island tide table — next 7 days

DayHigh tidesLow tides
Today
Tue, Oct 27		1:45 AM 8.7 ft1:12 PM 10.8 ft7:10 AM 2.5 ft8:01 PM -2.1 ft
Tomorrow
Wed, Oct 28		2:31 AM 8.5 ft1:49 PM 10.8 ft7:48 AM 2.9 ft8:46 PM -2.1 ft
Thu, Oct 293:20 AM 8.0 ft2:31 PM 10.5 ft8:28 AM 3.3 ft9:35 PM -1.7 ft
Fri, Oct 304:14 AM 7.5 ft3:19 PM 9.9 ft9:14 AM 3.8 ft10:29 PM -1.0 ft
Sat, Oct 315:16 AM 7.1 ft4:16 PM 9.1 ft10:11 AM 4.2 ft11:32 PM -0.2 ft
Sun, Nov 16:28 AM 6.9 ft5:30 PM 8.2 ft11:32 AM 4.5 ft
Mon, Nov 27:40 AM 7.1 ft7:01 PM 7.5 ft12:46 AM 0.6 ft1:21 PM 4.3 ft

The year at Chowiet Island, Semidi Island

Highest tide, next 12 months11.2 ft on December 24, 2026 at 12:37 PM
Lowest tide, next 12 months-2.8 ft on July 5, 2027 at 8:06 AM
Minus tides (below 0 ft)177 days in the next 12 months
Tide patternTwo high and two low tides a day
Typical daily range9.0 ft (30-day average)
StationNOAA 9458519 · harmonic (reference) station · 56.0517, -156.698

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

Chirikof Island41 mi · AK Nakchamik Island48 mi · AK Unavikshak Island50 mi · AK Chankliut Island55 mi · AK Aniakchak Bay57 mi · AK Kujulik Bay (North Shore)63 mi · AK Castle Bay, Northwest Arm65 mi · AK Chignik, Anchorage Bay68 mi · AK

All Alaska tide stations →

Questions about Chowiet Island, Semidi Island tides

What time is high tide at Chowiet Island, Semidi Island today?

On Tuesday, October 27, high tide at Chowiet Island, Semidi Island is at 1:45 AM (8.7 ft) and 1:12 PM (10.8 ft); low tide is at 7:10 AM (2.5 ft) and 8:01 PM (-2.1 ft) (HDT, heights above MLLW). The table above lists the next 7 days.

When are the highest tides of the year at Chowiet Island, Semidi Island?

The highest predicted tide in the next 12 months is 11.2 ft on December 24, 2026 at 12:37 PM. 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 Chowiet Island, Semidi Island?

Yes — on 177 days in the next 12 months the low tide drops below 0 ft (MLLW). The lowest is -2.8 ft on July 5, 2027 at 8:06 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 (HDT 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.