The most popular time to visit Castle Rock is during the summer months, particularly in July. This peak season, spanning from June to August, attracts a diverse range of holidaymakers eager to take advantage of the warm weather and abundant outdoor activities. With temperatures typically ranging from 15 to 30 degrees Celsius, visitors can comfortably enjoy hiking, kayaking, and exploring the stunning natural surroundings.July is particularly lively, with many travellers flocking to the area for its vibrant setting and numerous events. The nearby Mount St. Helens National Volcanic Monument offers breathtaking views and educational opportunities, making it an excellent choice for travellers.For those seeking a more budget-friendly option, November presents a wonderful opportunity to visit Castle Rock. During this low season, you can enjoy the serene beauty of the region while avoiding the crowds. The fall foliage adds a unique charm to your experience, great for scenic drives and peaceful hikes.