Our verdict
The best time to visit Jeju is May
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!
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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:
| Season | Months |
|---|---|
| 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:
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
of pure sunshine
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.
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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
of pure sunshine
of showers or rain
What to pack: If you’re heading to Jeju in February, make sure you pack a warm jacket or coat.
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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
of pure sunshine
of showers or rain
What to pack: If you’re heading to Jeju in March, make sure you pack a warm jacket or coat.
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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
of pure sunshine
of showers or rain
What to pack: If you’re heading to Jeju in April, make sure you pack a warm jacket or coat.
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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
of pure sunshine
of showers or rain
What to pack: If you’re heading to Jeju in May, make sure you pack a light jumper or hoodie.
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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
of pure sunshine
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.
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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
of pure sunshine
of showers or rain
What to pack: If you’re heading to Jeju in July, make sure you pack t-shirts and light clothing.
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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
of pure sunshine
of showers or rain
What to pack: If you’re heading to Jeju in August, make sure you pack t-shirts and light clothing.
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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
of pure sunshine
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
of pure sunshine
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.
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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
of pure sunshine
of showers or rain
What to pack: If you’re heading to Jeju in November, make sure you pack a light jumper or hoodie.
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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
of pure sunshine
of showers or rain
What to pack: If you’re heading to Jeju in December, make sure you pack a warm jacket or coat.
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