Early Spring (March to April), the weather is pleasant with average temperatures ranging from 7°C to 18°C (45°F to 64°F). This period offers a comfortable climate for sightseeing and outdoor activities without the high humidity levels that come later in the summer. It's also less crowded than peak season, making it an ideal time for exploration.

One of the must-visit destinations in Busan is Haeundae Beach. Swimming, sunbathing, surfing, and participating in beach volleyball or other sand sports are popular activities. The beach also offers various water equipment rentals for more dynamic experiences like jet skiing or parasailing.

Late Fall (September to November), with temperatures ranging from 10°C to 23°C (50°F to 73°F), this is another great time to visit Busan. The fall foliage adds an extra layer of beauty to the city's scenic spots, and the cooler weather makes it pleasant for hiking or visiting beach areas.

Jangmandaro Park features Europe Island, which has small-scale reproductions of European landmarks like the Eiffel Tower and Venice Bridge. It's a fun place to explore on foot and take memorable photos.

Spy Island Park (Nurimaru APEC House and Haedong Yonggungsa Temple), this area offers a view of the 12 glass towers that serve as Korea's National Maritime Museum, which includes exhibitions on maritime history and culture.

During the summer months of June to August, summers in Busan can be hot and 부산고구려 humid with temperatures often exceeding 25°C (77°F), sometimes reaching up to 30°C or higher. This is peak tourist season, so expect larger crowds at popular destinations like Haeundae Beach and Taejongdae. However, the warm weather is perfect for water activities.

Gamcheon Culture Village, known as "Macha Hill," is famous for its colorful houses and artworks which create an Instagram-worthy backdrop. It's also a community of artists where you can find galleries, craft shops, and street murals.

Autumn (September to November), autumn offers cooler temperatures and less humidity, with September typically being the mildest month before it starts getting colder in late autumn. It's a fantastic time to enjoy the city's natural beauty, such as Naksan Beach and Songdo Beach Park, without the intensity of summer heat.

During the winter months from December to February, winter in Busan is relatively mild compared to other regions in Korea. Temperatures can drop below freezing, but it rarely gets extremely cold. It's a good time for indoor activities like visiting museums or hot spring resorts around the city. If you enjoy winter sports, nearby Gangwon Province offers skiing and snowboarding opportunities.

Considered Korea's best hidden gem, Taejongdae offers stunning views of rocky islets and lush greenery. You can take a cable car up to observe birds, especially during migration season, or hike one of the trails for a closer look at nature.

Spring (March to May), Busan is characterized by blooming cherry blossoms and other spring flowers. The climate is generally comfortable with less rainfall compared to the summer months, making it a great time for hiking or visiting attractions like Beomeosa Temple, Haedong Yonggungsa Temple, and Gamcheon Culture Village.