We are taking a Sept. 13 cruise of 14 days to Alaska. Does anyone know what the weather is like in Sept. and what type of clothing to pack? We're flying out of Florida to the west coast than driving north to pick up the ship. Would like not to over pack (fat chance) with the wrong type of clothing, not to light, not to heavy. First time out that way and schlumping heavy suitcases all over is not my idea of fun. Thanks. Larry