Last and first frost dates in Busan

When is the last frost in Busan?

The last frost in Busan usually comes around 19 March: that is the median of 2016–2025, so in about half of those years the last night at or below 0 °C came later. Hardy crops start before it and frost-tender ones only after it: in the table below arugula can go into open ground from 26 February, while corn waits until 30 March. The first autumn frost follows around 22 November, about 248 days later: harvest or cover frost-tender crops before then.

When to sow and plant

Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day. Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

When the soil warms up in Busan

The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo). The soil reaches 10 °C 4 days after the last spring frost and 15 °C 33 days after it.

Frost dates near Busan

Of the nearest cities on our list, the last spring frost ends earliest in Daegu (19 March) and latest in Gwangju (1 April).

Seeds, seedlings and markets in Busan

Within 15 km of Busan OpenStreetMap lists 27 markets (collected 28 October 2026). The nearest market to the city centre is Bujeon market, 2 km away.

• Bujeon market — market
  중앙대로783번길 23, 47251 부산광역시 · 2 km
• Millac The Market — market
  10:00–00:00 · 6 km
• Gaya Computer Wholesale Marketplace — market
  Mon–Sat 09:30–19:00; Sun 11:00–18:30 · 7 km
• Haeundae Traditional Market — market
  Mon–Sun 09:00–22:00 · 9 km
• Gukje Market — market
  국제시장2길 55 · Mon–Sun 09:00–18:00 · 10 km
• 기장회센터 — market
  읍내로104번길 16, 부산광역시 · 15 km

• Where to buy seeds and seedlings in Busan

Places: © OpenStreetMap contributors, ODbL.

Weather in Busan by month

Average weather in Busan over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: May–October (21.3–30.6 °C). Months that average 30 °C or more by day: August (30.6 °C). Nights average below 0 °C in January (-2.8 °C), February (-1.1 °C) and December (-1.6 °C). About 1548 mm of rain falls in a year, on 108 days; July is the wettest month (272 mm) and December the driest (33 mm).

Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).

Planted in autumn

From a month before the first autumn frost, so the roots grow before winter, to the late-planting limit on each crop’s page (about two weeks before the ground freezes, by ten years of weather).