Question 1

Is Jeju City safe to visit?

Accepted Answer

Travelia rates Jeju City, South Korea “safe”, following US State Department and UK FCDO travel advisories.

Question 2

What is the sea temperature in Jeju City in July?

Accepted Answer

The sea off Jeju City averages about 24°C in July.

Question 3

When is the best time to visit Jeju City?

Accepted Answer

Jeju City is warmest in Aug and driest in Dec; mild (18–28°C) months are Jun, Jul, Aug, Sep, Oct.

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	5	6	9	13	17	21	25	26	22	18	12	7
Sea °C	15	14	14	14	16	20	24	27	25	22	19	17
Rain (days)	69	80	109	149	176	250	255	255	179	77	77	52

Jeju City, South Korea

Climate by month