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Anchorage, AK Local Forecast Office

34NM ESE Seguam Island AK

Marine Point Forecast

[NOTICE]

Tuesday
High: 43 °F
N 35kt
28ft

Gale Warning
Tuesday Night
Low: 39 °F
N 35kt
25ft

Gale Warning
Wednesday
High: 42 °F
N 30kt
19-20ft
Wednesday Night
Low: 40 °F
N 30kt
19ft
Thursday
High: 42 °F
N 30kt
13-14ft
Thursday Night
Low: 39 °F
NNW 15kt⇓
12ft
Friday
High: 42 °F
Light Wind
8ft
Friday Night
Low: 39 °F
NNW 15kt
10ft
Saturday
High: 41 °F
NNW 15kt
9-11ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:36 pm AKST Dec 1, 2025
Forecast Valid: 3am AKST Dec 2, 2025-6pm AKST Dec 8, 2025

View Nearby Observations

Detailed Forecast

...GALE WARNING THROUGH TONIGHT...

Synopsis: A 960 mb low 35 nm N of Unalaska moves to 115 nm S of Nikolski at 980 mb Wed morning and then to 135 nm SW of False Pass at 996 mb Thu morning. Its front moves across the Eastern Aleutians and eastern Bering through Wed. A separate front moves into the western Bering Wed night.

Tuesday

N wind around 35 kt, with gusts as high as 45 kt. Rain, mainly before 3pm. Seas 20 ft building to 28 ft.

Tuesday Night

N wind 25 to 35 kt. Rain likely, mainly before midnight. Seas 25 ft subsiding to 20 ft.

Wednesday

N wind around 30 kt, with gusts as high as 35 kt. Rain likely, mainly before 9am. Seas 19 to 20 ft.

Wednesday Night

N wind 25 to 30 kt, with gusts as high as 35 kt. A chance of rain. Seas 19 ft subsiding to 15 ft.

Thursday

N wind 20 to 30 kt. A chance of rain after 9am. Seas 13 to 14 ft.

Thursday Night

NNW wind 10 to 15 kt becoming W 5 to 10 kt after midnight. Winds could gust as high as 20 kt. A chance of rain after 9pm. Seas 12 ft subsiding to 8 ft.

Friday

Variable winds 5 kt or less. A chance of rain. Seas 8 ft subsiding to 5 ft.

Friday Night

NNW wind 5 to 15 kt. A chance of rain. Seas 5 ft building to 10 ft.

Saturday

NNW wind 5 to 15 kt becoming NNE in the afternoon. A chance of rain. Seas 9 to 11 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.