Jeju weather in September (Jeju Island, South Korea)
How is the weather in Jeju in September? Wondering if it's the right time to visit? Browse this page for a comprehensive overview of the weather conditions for that month.
In September, Jeju typically experiences high temperatures and heavy rainfall. September is a summer month. Throughout the daytime, temperatures often hover around 26°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 22°C.
Jeju in September falls under the rainy season with heavy rainfall, averaging around 178 mm for the month. Based on our climate data of the past 30 years, about 11 days of rain are anticipated.
The area enjoys a balanced 162 hours of sunlight. Ensuring it's neither too overcast nor too sunny.
In case you lean more towards enjoying temperate temperatures and rain-free days October typically offers the most optimal weather. In contrast, January and February tend to have less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Jeju climate page with graphs.
Jeju, monthly averages in September
Min Temperature
22°C
Max Temperature
26°C
Chance of Rain
36%
Precipitation
178 mm
Rainy days
11 days
Humidity
73%
Sunshine
162 hours
Percentage Sunshine
Where to go in South Korea in September
Find out more about the weather in South Korea in September and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Jeju in September?
It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in September.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Jeju.
Our site offers climate and forecast data for every country in the world. Are you going to South Korea? On this website you can find historical weather averages for many cities in South Korea. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.
