Jeju Island Weather by Month – South Korea Climate

Jeju Island in January

In January the weather in Jeju Island is generally less favorable. January is a winter month. In Jeju you can expect cold maximum average daytime temperatures around 9°C (48°F) and nighttime temperatures around 5°C (41°F). On average, this month is the coldest month of the year in Jeju Island.

Find more detailed climate information for Jeju Island in January here.

Conditions Temperatures Precipitation

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).

Marker color shows the average daytime high temperature in January: blue is cold, red is hot.

Marker color shows total monthly precipitation in January: pale blue is dry, deep blue is wet.

Jeju Island in February

In February the weather in Jeju Island is generally less favorable. February is a winter month. In Jeju you can expect cold maximum average daytime temperatures around 10°C (50°F) and nighttime temperatures around 5°C (41°F).

Find more detailed climate information for Jeju Island in February here.

Conditions Temperatures Precipitation

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).

Marker color shows the average daytime high temperature in February: blue is cold, red is hot.

Marker color shows total monthly precipitation in February: pale blue is dry, deep blue is wet.

Jeju Island in March

In March the weather in Jeju Island is generally mixed. In Jeju you can expect mild maximum average daytime temperatures around 13°C (55°F) and nighttime temperatures around 7°C (45°F).

Find more detailed climate information for Jeju Island in March here.

Conditions Temperatures Precipitation

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).

Marker color shows the average daytime high temperature in March: blue is cold, red is hot.

Marker color shows total monthly precipitation in March: pale blue is dry, deep blue is wet.

Jeju Island in April

In April the weather in Jeju Island ranges from mixed in Jeju to good in Seogwipo. In Jeju you can expect mild maximum average daytime temperatures around 16°C (61°F) and nighttime temperatures around 11°C (52°F).

Find more detailed climate information for Jeju Island in April here.

Conditions Temperatures Precipitation

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).

Marker color shows the average daytime high temperature in April: blue is cold, red is hot.

Marker color shows total monthly precipitation in April: pale blue is dry, deep blue is wet.

Jeju Island in May

In May the weather in Jeju Island is generally very good. The temperatures range from pleasant in Jeju with 20°C (68°F) to high in Seogwipo with 22°C (72°F).

Find more detailed climate information for Jeju Island in May here.

Conditions Temperatures Precipitation

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).

Marker color shows the average daytime high temperature in May: blue is cold, red is hot.

Marker color shows total monthly precipitation in May: pale blue is dry, deep blue is wet.

Jeju Island in June

In June the weather in Jeju Island is generally mixed. In Jeju you can expect warm maximum average daytime temperatures around 23°C (73°F) and nighttime temperatures around 19°C (66°F).

Find more detailed climate information for Jeju Island in June here.

Conditions Temperatures Precipitation

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).

Marker color shows the average daytime high temperature in June: blue is cold, red is hot.

Marker color shows total monthly precipitation in June: pale blue is dry, deep blue is wet.

Jeju Island in July

In July the weather in Jeju Island ranges from mixed in Seogwipo to good in Jeju. July is a summer month. In Jeju you can expect warm maximum average daytime temperatures around 28°C (82°F) and nighttime temperatures around 24°C (75°F).

Find more detailed climate information for Jeju Island in July here.

Conditions Temperatures Precipitation

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).

Marker color shows the average daytime high temperature in July: blue is cold, red is hot.

Marker color shows total monthly precipitation in July: pale blue is dry, deep blue is wet.

Jeju Island in August

In August the weather in Jeju Island ranges from less favorable in Seogwipo to very good in Jeju. August is a summer month. In Jeju you can expect warm maximum average daytime temperatures around 29°C (84°F) and nighttime temperatures around 25°C (77°F). On average, this month is one of the warmest months of the year in Jeju Island. So be prepared and make sure to dress lightly.

Find more detailed climate information for Jeju Island in August here.

Conditions Temperatures Precipitation

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).

Marker color shows the average daytime high temperature in August: blue is cold, red is hot.

Marker color shows total monthly precipitation in August: pale blue is dry, deep blue is wet.

Jeju Island in September

In September the weather in Jeju Island ranges from mixed in Seogwipo to very good in Jeju. September is a summer month. In Jeju you can expect warm maximum average daytime temperatures around 26°C (79°F) and nighttime temperatures around 22°C (72°F).

Find more detailed climate information for Jeju Island in September here.

Conditions Temperatures Precipitation

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).

Marker color shows the average daytime high temperature in September: blue is cold, red is hot.

Marker color shows total monthly precipitation in September: pale blue is dry, deep blue is wet.

Jeju Island in October

In October the weather in Jeju Island is generally excellent. In Jeju you can expect pleasant maximum average daytime temperatures around 21°C (70°F) and nighttime temperatures around 17°C (63°F).

Find more detailed climate information for Jeju Island in October here.

Conditions Temperatures Precipitation

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).

Marker color shows the average daytime high temperature in October: blue is cold, red is hot.

Marker color shows total monthly precipitation in October: pale blue is dry, deep blue is wet.

Jeju Island in November

In November the weather in Jeju Island is generally good. In Jeju you can expect mild maximum average daytime temperatures around 17°C (63°F) and nighttime temperatures around 12°C (54°F).

Find more detailed climate information for Jeju Island in November here.

Conditions Temperatures Precipitation

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).

Marker color shows the average daytime high temperature in November: blue is cold, red is hot.

Marker color shows total monthly precipitation in November: pale blue is dry, deep blue is wet.

Jeju Island in December

In December the weather in Jeju Island is generally mixed. December is a winter month. In Jeju you can expect cold maximum average daytime temperatures around 12°C (54°F) and nighttime temperatures around 7°C (45°F).

Find more detailed climate information for Jeju Island in December here.

Conditions Temperatures Precipitation

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).

Marker color shows the average daytime high temperature in December: blue is cold, red is hot.

Marker color shows total monthly precipitation in December: pale blue is dry, deep blue is wet.

Jeju Island Weather by Month: Temperature & Rainfall Guide

Jeju Island in January

Jeju Island in February

Jeju Island in March

Jeju Island in April

Jeju Island in May

Jeju Island in June

Jeju Island in July

Jeju Island in August

Jeju Island in September

Jeju Island in October

Jeju Island in November

Jeju Island in December

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