National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

    • This Afternoon

      This Afternoon:SSW wind around 20 kt, with gusts as high as 25 kt. Mostly cloudy. Seas around 6 ft.

      High: 42 °F

      SSW 20kt
      6ft

    • Tonight

      Tonight:SSW wind 15 to 20 kt. Mostly cloudy. Seas around 5 ft.

      Low: 40 °F

      SSW 20kt
      5ft

    • New Year's Day

      New Year's Day:S wind 10 to 20 kt. A chance of showers after 3pm. Seas 4 to 5 ft.

      High: 41 °F

      S 20kt
      4-5ft

    • Thursday Night

      Thursday Night:SW wind 25 to 30 kt decreasing to 15 to 20 kt after midnight. A chance of rain after 3am. Seas 5 ft building to 11 ft.

      Low: 40 °F

      SW 30kt⇓
      Waves Building11ft

    • Friday

      Friday:S wind 15 to 25 kt increasing to 25 to 35 kt in the afternoon. Winds could gust as high as 40 kt. Rain. Seas 9 to 11 ft.

      High: 42 °F

      ⇑S 35kt
      9-11ft

    • Friday Night

      Friday Night:SSW wind 20 to 25 kt becoming SW 15 to 20 kt after midnight. Winds could gust as high as 30 kt. Rain, mainly before 9pm. Seas 9 ft subsiding to 6 ft.

      Low: 39 °F

      SSW 25kt⇓
      9ftWaves Subsiding

    • Saturday

      Saturday:SW wind 10 to 15 kt becoming variable and less than 5 kt in the afternoon. Winds could gust as high as 20 kt. Rain likely, mainly before 9am. Seas 5 to 6 ft.

      High: 43 °F

      SW 15kt⇓
      5-6ft

    • Saturday Night

      Saturday Night:Variable winds less than 5 kt becoming SE 20 to 25 kt in the evening. Rain. Seas 6 ft building to 13 ft.

      Low: 38 °F

      ⇑SE 25kt
      Waves Building13ft

    • Sunday

      Sunday:SE wind 25 to 35 kt becoming S 35 to 45 kt in the afternoon. Rain. Seas 13 ft building to 16 ft.

      High: 44 °F

      ⇑S 45kt
      Waves Building16ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 11:09 am AKST Dec 31, 2025
Forecast Valid: 3pm AKST Dec 31, 2025-6pm AKST Jan 6, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING TODAY AND THURSDAY...

Synopsis: A 986 mb low 180 nm W of Shemya moves to 110 nm N of Shemya at 995 mb Thu morning. It then moves near the Kamchatka Peninsula at 998 mb Thu afternoon. A 990 mb N Pacific low moves to 70 nm S of Shemya Thu morning, and then to 100 nm W of Saint Paul at 1004 mb Fri morning.

This Afternoon
SSW wind around 20 kt, with gusts as high as 25 kt. Mostly cloudy. Seas around 6 ft.
Tonight
SSW wind 15 to 20 kt. Mostly cloudy. Seas around 5 ft.
New Year's Day
S wind 10 to 20 kt. A chance of showers after 3pm. Seas 4 to 5 ft.
Thursday Night
SW wind 25 to 30 kt decreasing to 15 to 20 kt after midnight. A chance of rain after 3am. Seas 5 ft building to 11 ft.
Friday
S wind 15 to 25 kt increasing to 25 to 35 kt in the afternoon. Winds could gust as high as 40 kt. Rain. Seas 9 to 11 ft.
Friday Night
SSW wind 20 to 25 kt becoming SW 15 to 20 kt after midnight. Winds could gust as high as 30 kt. Rain, mainly before 9pm. Seas 9 ft subsiding to 6 ft.
Saturday
SW wind 10 to 15 kt becoming variable and less than 5 kt in the afternoon. Winds could gust as high as 20 kt. Rain likely, mainly before 9am. Seas 5 to 6 ft.
Saturday Night
Variable winds less than 5 kt becoming SE 20 to 25 kt in the evening. Rain. Seas 6 ft building to 13 ft.
Sunday
SE wind 25 to 35 kt becoming S 35 to 45 kt in the afternoon. Rain. Seas 13 ft building to 16 ft.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 52.89°N 173.1°W
Last Update: 11:09 am AKST Dec 31, 2025
Forecast Valid: 3pm AKST Dec 31, 2025-6pm AKST Jan 6, 2026
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