Busan has been very hot for more than two weeks. Every day the temperature was above 30 °C, sometimes well above. The air felt heavy, and even the evenings offered no relief. But this morning… it felt different. I opened the window and a cool breeze slipped in. Only 23 °C. My wife Nara looked at me and said with a smile: “It’s the solar terms!.”
What Are the 24 Solar Terms?
The 24 Solar Terms are an ancient East Asian method of dividing the year, based on the sun’s position in the sky. Each term lasts about 15 days and has a name — like Liqiu (Start of Autumn) or Chushu (End of Heat). Farmers used them for ages to decide when to plant, harvest, or get ready for the next season.
This system started in China over 2,000 years ago and spread to Korea, Japan, and Vietnam. Even though it’s rooted in northern China’s climate, the same names and timings are used here in Korea. They’re more than a tool for farming—they’re woven into traditions, festivals, and even what people cook and wear.
Sometimes, the weather still follows these old rhythms. But often nowadays, it doesn’t. Summers stretch longer, winters come later, and sometimes autumn feels more like summer with a gentler breeze. Still, when a day like today comes along, it feels like the world remembered its old pulse
The Rest of Summer in Busan
If things continue as usual, expect a few more warm days, but cooler nights. By early September, mornings should feel fresher, and humidity will ease up. Beware of typhoons—mid-September can bring some storms. But in between, skies will clear and afternoons will feel comfortably warm.
I’ll be here in Busan until September 4, then off for a short “after-summer holiday” in the Netherlands. Returning on October 1, I’ll step right into what I believe is one of the loveliest months in Busan.
October: Busan at Its Best
October is something special in Busan. No more stifling heat, but days are still beautifully warm. The air turns dry and clear, and sunlight softens to a golden glow. Mornings might need a light jacket, but by midday, short sleeves are perfect.
The sea is still warm from summer, so coastal walks are a treat. Hikes up Geumjeongsan or along cliff trails are calm and uplifting. Jagalchi Market buzzes with fresh seafood, and Gamcheon Culture Village is vibrant—without the summer crowds.
It’s also festival season. The Busan International Film Festival brings energy to the city, and cultural performances pop up in parks. October blends tradition, creativity, and space to breathe.
Did you know?
- The 24 Solar Terms were added to UNESCO’s Intangible Cultural Heritage list in 2016. thechinajourney.com+8chinaeducationaltours.com+8chinaeducationaltours.com+8
- They follow the sun’s path along the ecliptic, not weather patterns. Imperial Harvest+4chinaeducationaltours.com+4Susa Asia Limited+4
- Even a few days’ shift in timing could historically make or break a harvest.
- Many Korean calendars still show these terms, even if most people don’t notice them anymore.
Weather Note
Sunshine and clear skies are common—ideal for dining outdoors or taking in the city. wanderlog.comweatherspark.com
In October, Busan’s average daily high is about 20–22 °C (68–72 °F), low around 14–15 °C (58–60 °F). World Weather & Climate InformationHoliday Weather
Rain is lower than in summer—expect around 6–8 rainy days and roughly 60–75 mm of precipitation. World Weather & Climate Informationavionero.com