Alaskan summer weather is warm and pleasant, excluding Far North region, where it remains rather chilly all the time. Pleasant temperatures around 18 °C stay in most of Southcentral and Southwest Alaska. July and August are the warmest months of the year. Due to direct sunlight, it feels even warmer outside. Long days is one of the major benefits of the season. In June the sun can stay above the horizon for 18 hours or more, it depends on your location.
If you come to Alaska in the summer, you will still need a jacket because occasional cold fronts may bring lower temperatures. Also, summer is a rainy season in Alaska. While June is relatively dry, August is the wettest month. It won’t rain all the time, but you will definitely need waterproof shoes and clothes.