Anchorage, Alaska is a fantastic summer vacation destination with its breathtaking landscapes and plethora of outdoor activities. Below are some tips and recommendations for the best months to visit Anchorage in the summer and 7 great local activities that are perfect for a day trip. Best Months to Visit Anchorage in the Summer Summer is the best time to visit Anchorage as the skies are clear, and temperatures range from 55 to 78 °F. The best months are June through August wh