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Best time to visit Jeju, South Korea

Our verdict

The best time to visit Jeju is May

Want to know when to travel to Jeju? Based on criteria such as the weather, cost of flights and hotels, and peak travel periods, May is the best time to go to Jeju. Don’t just take our word for it though… We’ve put together loads of information below to help you decide, such as a monthly breakdown of the weather, what to pack, when to fly, and much more.

In the height of summer, temperatures in Jeju can reach a maximum of 29℃ (85℉). In the winter, temperatures can get down to 1℃ (34℉) around January.

The days are longest in Jeju in May, so if you want to see the sights during the day when the sun is up for the longest time, it’s best to visit around that time of year. You don’t want to get wet on your holiday, do you? Well if you’re trying to avoid the rain, then steer clear of Jeju in August. Head over there in January instead if you want to increase your chances of not being rained on.

If you want to learn everything you need to know about the best times to travel to Jeju, the weather and stats by month and so much more, make sure you keep reading. Once you’re ready, we’ve included a bunch of our favourite online booking tools to help you find the best deals on flights, accommodation and anything else you’ll need for your trip. Happy reading!

Warmest month

August

Least rainfall

January

Most daylight

May

Jeju seasons

Before you continue, it’s important to know when the seasons are in Jeju as they might be different to yours depending on where in the world you’re travelling from. Jeju is in the Northern Hemisphere, so the seasons fall during these months:

SeasonMonths
Summer June to August
Autumn/fall September to November
Winter December to February
Spring March to May

Average temperatures in Jeju

If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Jeju for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.

Jeju climate by month

If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Jeju for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.

Jump to:

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC

Jeju in January

  • Average temperature: 6℃ (42℉)
  • Average high temperature: 7℃ (45℉)
  • Average low temperature: 4℃ (40℉)
  • Average humidity: 71%
  • Average sunny days: 12 days
  • Average rainfall: 42mm (2") over 11 days
  • Average snow days: 5 days
12 days
of pure sunshine
11 days
of showers or rain

What to pack: If you’re heading to Jeju in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Jeju in February

  • Average temperature: 7℃ (44℉)
  • Average high temperature: 8℃ (47℉)
  • Average low temperature: 5℃ (41℉)
  • Average humidity: 70%
  • Average sunny days: 12 days
  • Average rainfall: 46mm (2") over 11 days
  • Average snow days: 3 days
12 days
of pure sunshine
11 days
of showers or rain

What to pack: If you’re heading to Jeju in February, make sure you pack a warm jacket or coat.


Jeju in March

  • Average temperature: 9℃ (49℉)
  • Average high temperature: 11℃ (52℉)
  • Average low temperature: 7℃ (45℉)
  • Average humidity: 68%
  • Average sunny days: 17 days
  • Average rainfall: 52mm (2") over 12 days
17 days
of pure sunshine
12 days
of showers or rain

What to pack: If you’re heading to Jeju in March, make sure you pack a warm jacket or coat.


Jeju in April

  • Average temperature: 13℃ (56℉)
  • Average high temperature: 15℃ (58℉)
  • Average low temperature: 11℃ (52℉)
  • Average humidity: 71%
  • Average sunny days: 17 days
  • Average rainfall: 68mm (3") over 11 days
17 days
of pure sunshine
11 days
of showers or rain

What to pack: If you’re heading to Jeju in April, make sure you pack a warm jacket or coat.


Jeju in May

  • Average temperature: 17℃ (63℉)
  • Average high temperature: 19℃ (66℉)
  • Average low temperature: 16℃ (60℉)
  • Average humidity: 75%
  • Average sunny days: 20 days
  • Average rainfall: 63mm (2") over 9 days
20 days
of pure sunshine
9 days
of showers or rain

What to pack: If you’re heading to Jeju in May, make sure you pack a light jumper or hoodie.


Jeju in June

  • Average temperature: 21℃ (69℉)
  • Average high temperature: 22℃ (71℉)
  • Average low temperature: 20℃ (67℉)
  • Average humidity: 83%
  • Average sunny days: 16 days
  • Average rainfall: 81mm (3") over 13 days
16 days
of pure sunshine
13 days
of showers or rain

What to pack: If you’re heading to Jeju in June, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.


Jeju in July

  • Average temperature: 25℃ (77℉)
  • Average high temperature: 26℃ (79℉)
  • Average low temperature: 24℃ (75℉)
  • Average humidity: 86%
  • Average sunny days: 15 days
  • Average rainfall: 122mm (5") over 15 days
15 days
of pure sunshine
15 days
of showers or rain

What to pack: If you’re heading to Jeju in July, make sure you pack t-shirts and light clothing.


Jeju in August

  • Average temperature: 27℃ (80℉)
  • Average high temperature: 28℃ (82℉)
  • Average low temperature: 25℃ (77℉)
  • Average humidity: 81%
  • Average sunny days: 13 days
  • Average rainfall: 129mm (5") over 15 days
13 days
of pure sunshine
15 days
of showers or rain

What to pack: If you’re heading to Jeju in August, make sure you pack t-shirts and light clothing.


Jeju in September

  • Average temperature: 23℃ (74℉)
  • Average high temperature: 24℃ (76℉)
  • Average low temperature: 22℃ (71℉)
  • Average humidity: 76%
  • Average sunny days: 13 days
  • Average rainfall: 111mm (4") over 14 days
13 days
of pure sunshine
14 days
of showers or rain

What to pack: If you’re heading to Jeju in September, make sure you pack t-shirts and light clothing.

Jeju in October

  • Average temperature: 19℃ (66℉)
  • Average high temperature: 20℃ (68℉)
  • Average low temperature: 18℃ (64℉)
  • Average humidity: 69%
  • Average sunny days: 17 days
  • Average rainfall: 99mm (4") over 12 days
17 days
of pure sunshine
12 days
of showers or rain

What to pack: If you’re heading to Jeju in October, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.


Jeju in November

  • Average temperature: 14℃ (56℉)
  • Average high temperature: 15℃ (59℉)
  • Average low temperature: 12℃ (54℉)
  • Average humidity: 70%
  • Average sunny days: 12 days
  • Average rainfall: 44mm (2") over 14 days
12 days
of pure sunshine
14 days
of showers or rain

What to pack: If you’re heading to Jeju in November, make sure you pack a light jumper or hoodie.


Jeju in December

  • Average temperature: 8℃ (46℉)
  • Average high temperature: 9℃ (49℉)
  • Average low temperature: 6℃ (43℉)
  • Average humidity: 70%
  • Average sunny days: 10 days
  • Average rainfall: 46mm (2") over 15 days
  • Average snow days: 2 days
10 days
of pure sunshine
15 days
of showers or rain

What to pack: If you’re heading to Jeju in December, make sure you pack a warm jacket or coat.


Top FAQs

The hottest month of the year in Jeju is usually August, where temperatures tend to rise to around 28℃ (82℉) in the middle of the day or early afternoon.
The month with the least amount of rain in Jeju is generally around January. The dry season often coincides with cooler weather, so you should check the temperatures in January first to make sure it’s still a good time to go.
The rainiest time of year in Jeju is generally around August, although the wetter season can sometimes extend a few months either side of August too.
If you want to get the most out of your time visiting Jeju, or if you're just afraid of the dark, the days in May are usually the longest between sunrise and sunset.

Jeju map