Weather: Busan — September

September is typically excellent for visiting Busan, with average highs of 28°C and around 13 rainy days. Plan your activities accordingly—outdoor sightseeing is best on dry days, while rainy days are perfect for museums and indoor attractions.

Nights stay pleasantly warm in Busan during September, around 22°C. Light evening wear is sufficient, and outdoor dining is very comfortable. Many locals and visitors enjoy late-night walks and outdoor activities after sunset.

With highs of 28°C and lows of 22°C in September, we recommend: Compact umbrella, Waterproof jacket/shell, Lightweight breathable clothes, Sunscreen SPF 30+. Layering is key as temperatures can vary between air-conditioned interiors and outdoors. Comfortable walking shoes are essential for cobblestone streets.

Busan typically sees around 13 rainy days in September. Rain is usually in the form of brief showers rather than all-day downpours, so a compact umbrella is sufficient. Mornings tend to be drier, making them ideal for outdoor sightseeing.

Yes, September is excellent for swimming in Busan! With warm air temperatures around 28°C, the water is comfortable for extended beach sessions. This is peak beach season, so arrive early to secure a good spot at popular beaches.

In September, Busan gets approximately 12.4 hours of daylight per day. This affects how much sightseeing you can fit in—longer days mean more time for outdoor activities, while shorter days are perfect for cozy museum visits and early dinners.

Yes, September is peak season in Busan. Expect higher prices for accommodation and more crowds at popular attractions, but also the best weather conditions. Book hotels and major attractions in advance to secure availability and better rates.