Jeju Weather in June
June in Jeju averages 23°C (73°F) during the day and 19°C (66°F) at night. It is the wettest month of the year, with 203 mm (8 in) of rainfall on average, so waterproof gear is a must.
Rainfall in Jeju in June
As part of the rainy season, Jeju sees around 13 days of rain in June, with an average of 203 mm (8 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.
Temperature in Jeju in June
Daytime highs in Jeju in June reach 23°C (73°F), with nights around 19°C (66°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 19°C (66°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Jeju in June
The area experiences a moderate amount of sunshine, with approximately 170 hours of sunlight expected. Even though this month is part of the rainy season, you could still see the sun every now and then.Should you favor a climate that's both dry and comfortably warm, October typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Jeju's climate page.
Jeju Temperature in June
Min Temperature
19°C (66°F)
Max Temperature
23°C (73°F)
Chance of Rain
45%
Precipitation
203 mm (8 in)
Rainy days
13 days
Humidity
76%
Sunshine
170 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Jeju typically rise from around 23°C (73°F) at the start of June to approximately 26°C (79°F) by the end. Nights are pleasant, with lows typically ranging from 16°C (61°F) to 21°C (70°F).
Average temperatures in June
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Historical weather for Jeju in June
Browse day-by-day weather records for Jeju spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Jeju historical weather extremes in June
Based on weather observations in Jeju between 1976 and 2025, these are the recorded extremes during June.
- The warmest day in June was on June 30, 1994, with a maximum of 34°C (93°F).
- On June 12, 1995, Jeju saw its coldest June day with temperatures maxing out at 18°C (64°F).
- Nighttime temperatures dropped to 11°C (52°F) on June 15, 1985, marking the coldest June night on record.
Best Places in South Korea in June
Find out more about the weather in South Korea and which places have the best travel conditions in this month. See all of South Korea in June →
perfect weather
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tolerable
unpleasant
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What to Wear in Jeju in June
For Jeju in June, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Jeju in June
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Jeju's climate page.
Temperature Rainfall Sunshine Humidity
See the full Jeju climate overview or explore weather in South Korea.
