The short version
Late April to mid-May and October are the two good windows β and everyone
knows it, so flights and rooms go early. Every other month has a real cost, listed below.
JAN
Coldest of the year. Many hiking trails ice over.
β6 / 2Β°C
FEB
Seollal (μ€λ ) shuts shops and markets for three days.
β4 / 5Β°C
MAR
Yellow dust peaks. Blossom is Busan-only until month's end.
1 / 11Β°C
APR
Blossom crowds. The most expensive fortnight of spring.
7 / 18Β°C
MAY
The best weather there is β and rooms are booked out early.
13 / 23Β°C
JUN
Humidity climbs hard; the rains arrive late in the month.
18 / 27Β°C
JUL
The monsoon month (μ₯λ§) β rain most days, and it comes down hard.
22 / 29Β°C
AUG
Hottest and stickiest, and it's Korea's own holiday peak.
23 / 31Β°C
SEP
Typhoons run to late month. Chuseok (μΆμ) closes shops.
18 / 27Β°C
OCT
The other good month. Book flights and rooms months ahead.
11 / 20Β°C
NOV
Foliage is gone by mid-month, and then it's grey.
4 / 13Β°C
DEC
Cold and dry. Christmas is a single day here, not a week.
β2 / 5Β°C