Mid-summer temperatures average 50 to 60 degrees. Average annual precipitation is heavy, ranging from 80 to over 200 inches. The coastal route from the State of Washington to Southeast Alaska is usually quite wet. Low ceilings and frequently changing weather conditions are typical. Surface winds are greatly affected by the mountainous terrain, and sudden wind changes of as much as 180 degrees are commonplace.
Turbulence can cause difficult flight conditions at any time.
The interior route generally provides good weather through the summer months and may be compared to the inland area of the state of Washington. This is particularly important for wheeled aircraft because of the scarcity of airports and emergency landing areas. When flying into and out of Southeast Alaska, keep fuel tanks full. Seagulls, ravens, crows, eagles, game birds, bears and deer are a constant concern on and in the vicinity of airports. Talk to the local pilots, especially the air taxi operators.