Udamat Bay, Sedanka Island, AK Tide Chart & Tide Times

NOAA tide station 9462645 · Alaska · updated Oct 23, 2026

Fri, Oct 23: High tide 1:32 AM (4.2 ft) and 1:46 PM (5.0 ft); low tide 7:25 AM (1.3 ft) and 8:10 PM (0.7 ft).

Tide todayHigh 1:32 AM · High 1:46 PMLow 7:25 AM · Low 8:10 PM
Today's range4.3 ft0.7 → 5.0 ft (MLLW)
WindLoading…   
Sun9:48 AM – 7:48 PMFirst light 9:11 AM · Last light 8:25 PM

Wind: observed at NOAA CO-OPS station 9462620 (Unalaska), 14 mi away; forecast from the NOAA National Weather Service (api.weather.gov).

Udamat Bay, Sedanka Island tides — next 3 days

Shaded = night · heights in feet above MLLW · local time

TodayFri, Oct 23
6 AMNoon6 PM1:32a · 4.2′7:25a · 1.3′1:46p · 5.0′8:10p · 0.7′
  • High 1:32 AM 4.2 ft
  • Low 7:25 AM 1.3 ft
  • High 1:46 PM 5.0 ft
  • Low 8:10 PM 0.7 ft

First light 9:11 AMSunrise 9:48 AMSunset 7:48 PMLast light 8:25 PM

TomorrowSat, Oct 24
6 AMNoon6 PM2:25a · 4.4′8:02a · 1.6′2:12p · 5.2′8:48p · -0.1′
  • High 2:25 AM 4.4 ft
  • Low 8:02 AM 1.6 ft
  • High 2:12 PM 5.2 ft
  • Low 8:48 PM -0.1 ft

First light 9:13 AMSunrise 9:50 AMSunset 7:46 PMLast light 8:23 PM

SundaySun, Oct 25
6 AMNoon6 PM3:17a · 4.5′8:38a · 2.0′2:39p · 5.5′9:27p · -0.7′
  • High 3:17 AM 4.5 ft
  • Low 8:38 AM 2.0 ft
  • High 2:39 PM 5.5 ft
  • Low 9:27 PM -0.7 ft

First light 9:15 AMSunrise 9:52 AMSunset 7:44 PMLast light 8:21 PM

MondayMon, Oct 26
6 AMNoon6 PM4:08a · 4.6′9:14a · 2.4′3:06p · 5.7′10:08p · -1.1′
  • High 4:08 AM 4.6 ft
  • Low 9:14 AM 2.4 ft
  • High 3:06 PM 5.7 ft
  • Low 10:08 PM -1.1 ft

First light 9:17 AMSunrise 9:54 AMSunset 7:42 PMLast light 8:19 PM

Udamat Bay, Sedanka Island tide table — next 9 days

Fri, Oct 23High 1:32 AM
4.19 ft
Low 7:25 AM
1.30 ft
High 1:46 PM
4.96 ft
Low 8:10 PM
0.67 ft
Sat, Oct 24High 2:25 AM
4.39 ft
Low 8:02 AM
1.61 ft
High 2:12 PM
5.25 ft
Low 8:48 PM
-0.07 ft
Sun, Oct 25High 3:17 AM
4.52 ft
Low 8:38 AM
1.98 ft
High 2:39 PM
5.49 ft
Low 9:27 PM
-0.69 ft
Mon, Oct 26High 4:08 AM
4.57 ft
Low 9:14 AM
2.39 ft
High 3:06 PM
5.69 ft
Low 10:08 PM
-1.14 ft
Tue, Oct 27High 5:01 AM
4.50 ft
Low 9:50 AM
2.79 ft
High 3:33 PM
5.82 ft
Low 10:53 PM
-1.36 ft
Wed, Oct 28High 5:58 AM
4.35 ft
Low 10:28 AM
3.16 ft
High 4:01 PM
5.85 ft
Low 11:41 PM
-1.35 ft
Thu, Oct 29High 7:00 AM
4.15 ft
Low 11:08 AM
3.46 ft
High 4:34 PM
5.72 ft
Fri, Oct 30Low 12:35 AM
-1.12 ft
High 8:18 AM
4.00 ft
Low 11:59 AM
3.69 ft
High 5:14 PM
5.41 ft
Sat, Oct 31Low 1:35 AM
-0.75 ft
High 10:38 AM
4.04 ft
Low 1:12 PM
3.80 ft
High 6:10 PM
4.91 ft

Times are local (standard/daylight). Heights in feet above MLLW.

Nearby tide stations

About this station

NOAA station ID
9462645
Type
Reference (harmonic) station
Coordinates
53.8289, -166.2163
Datum
MLLW (feet)
Time zone
America/Anchorage

FAQ

When is high tide today at Udamat Bay, Sedanka Island, AK?

On Fri, Oct 23, predicted high tide at Udamat Bay, Sedanka Island, AK is at 1:32 AM, 1:46 PM local time.

When is low tide today at Udamat Bay, Sedanka Island, AK?

On Fri, Oct 23, predicted low tide at Udamat Bay, Sedanka Island, AK is at 7:25 AM, 8:10 PM local time.

Where does this tide data come from?

Predictions come from NOAA's Center for Operational Oceanographic Products and Services (CO-OPS), station 9462645. Heights are in feet relative to Mean Lower Low Water (MLLW).