Busan Weather in September

With daytime temperatures of 26°C (79°F) and nighttime lows of 21°C (70°F), September in Busan brings high temperatures during the day. Do keep in mind that September is part of the rainy season, with frequent and often heavy rainfall.

Rainfall in Busan in September

Busan is in the rainy season in September, with rain on around 11 days and an average of 171 mm (6.7 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.

Temperature in Busan in September

Busan in September gets highs of 26°C (79°F) during the day and drops to 21°C (70°F) at night. Summer occurs in September. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 21°C (70°F), evenings stay pleasantly warm.

Sunshine in Busan in September

You can expect a moderate amount of sunlight, with approximately 172 hours. Even though this month is part of the wet season, you can still see the sun occasionally.

For Busan itself, October generally stands out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.