Jeju

Jeju Island Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Jeju Island, South Korea in September.

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Jeju Seogwipo

Thinking about venturing to Jeju Island, South Korea this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Jeju Island in September

Jeju Island, South Korea is a region in South Korea. September in Jeju Island generally has warm temperatures, with heavy precipitation. During September, summer is in full swing.

Temperatures

You can expect warm maximum daytime temperatures of around 26°C (79°F) and nighttime temperatures around 22°C (72°F) in Jeju.

To learn more about the conditions in specific areas of Jeju Island, South Korea, check out the map below.

Precipitation

In September, precipitation varies across different areas. From heavy rainfall in Jeju with an average of 178 mm (7 in) to heavy rainfall in Seogwipo with 200 mm (7.9 in).

Average sunshine

Most areas see decent amounts of sunshine this month. Jeju gets around 162 hours of sunlight, providing a pleasant balance of sun and clouds. If you'd prefer more guaranteed sunshine, our weather planner can show you sunnier spots around the world.

Explore Jeju Island by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Best Places to Visit in Jeju Island in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Jeju Island.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Jeju Island

What is the weather like in September for some of the most popular destinations in Jeju Island, South Korea?

Temperature range in Jeju Island (September)

Precipitation variation in Jeju Island (September)

Jeju

In September Jeju generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 22°C (72°F) and heavy monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
29°C (84°F)
26°C (79°F)
21°C (70°F)
Min temperature
25°C (77°F)
22°C (72°F)
17°C (63°F)
Monthly sun hours
193 hours
162 hours
178 hours
Monthly rainfall
175 mm (6.9 in)
178 mm (7 in)
82 mm (3.2 in)
Monthly rainy days
13 days
11 days
8 days
Weather conditions
pleasant
pleasant
perfect
Climate in Jeju →

Seogwipo

In September Seogwipo generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 21°C (70°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

« August
September
October »
August
September
October
Max temperature
30°C (86°F)
27°C (81°F)
22°C (72°F)
Min temperature
25°C (77°F)
21°C (70°F)
16°C (61°F)
Monthly sun hours
186 hours
176 hours
209 hours
Monthly rainfall
229 mm (9 in)
200 mm (7.9 in)
90 mm (3.5 in)
Monthly rainy days
13 days
11 days
8 days
Weather conditions
poor
unpleasant
perfect
Climate in Seogwipo →

Is your destination not in the list? Have a look at all destinations in Jeju Island, in South Korea.

Popular cities in September

Day & night temperatures, rainfall and average weather in Jeju Island in September.

City Weather Day temp Night temp Rainfall
Jeju 26°C (79°F) 22°C (72°F) 178 mm (7 in)
Seogwipo 27°C (81°F) 21°C (70°F) 200 mm (7.9 in)

Jeju Island weather in September: frequently asked questions

What is the weather like in Jeju Island, South Korea in September?

September in Jeju Island, South Korea brings pleasant weather. In Jeju, daytime temperatures are typically around 26°C (79°F) and nighttime lows hover near 22°C (72°F).

What is the average temperature in Jeju Island, South Korea in September?

In Jeju, the average daytime high in September is 26°C (79°F), while nighttime temperatures drop to around 22°C (72°F).

Does Jeju Island, South Korea get a lot of rain in September?

Expect plenty of rainfall. Jeju records an average of 178 mm (7 in) in September, putting it among the wetter months for Jeju Island, South Korea.

Is September a Good Time to Visit Jeju Island, South Korea?

Given the typically pleasant weather conditions in Jeju, September might be a good time to visit Jeju Island, South Korea. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in October offering mostly perfect weather in Jeju. On the other hand, the months of January and February tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Jeju Island.

Weather and climate has detailed information for every country in the world. Are you going to South Korea? Get detailed 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 travel conditions. Find out where to go with our weather planner.

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