See long range weather forecasts for the next 60 days for the Deep South Region. The Old Farmer's Almanac's scientifically-based, long range forecasts can be used to make more informed decisions about future plans that depend on the weather, from vacations and weddings to sporting events and outdoor activities.
Weather in Alaska in September. The average maximum daytime temperature in Alaska in September is a cool 13Â°C (55Â°F). There are usually 5 hours of bright sunshine each day, which represents 41% of the 13 hours of daylight. The average sea temperature in and around Alaska in September is 12Â°C (54Â°F).
The unpredictable spring in Alaska has individual faces that read âquestioningâ in an up most unpredictable manner. Alaskaâs warmest season of the year begins in June and last through August. Summer has begun with temperatures that read 40 degrees and as high as 100 degrees.