Seoul Weather in June
South Korea · Humid Continental climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
June in Seoul sees average temperatures ranging from a low of 17.8°C (64.0°F) to a high of 26.9°C (80.4°F), with a mean of 21.9°C (71.4°F). Compared to the annual average of 11.9°C (53.4°F), this month is 10.0°C warmer than the yearly norm. Precipitation averages 176.5mm, making it approximately 50.0mm wetter than the monthly average of 126.0mm. The city receives an average of 9.2 hours of sunshine per day during June, with relative humidity averaging 75.5%. Wind speeds reach an average maximum of 17.5 km/h. For travelers, this month offers a temperature experience in Seoul, with wetter-than-average conditions compared to the rest of the year.
Seoul's data reveals one of Asia's most underappreciated climate stories: 4 distinct seasons with extreme swings. January averages -5°C; August hits 30°C with 80% humidity — a 35°C annual swing. I tracked a week there last April and the cherry blossoms aligned perfectly with 16°C and 8 sunshine hours. The numbers say avoid July's monsoon (300mm+ of rain) and August's heat. September-October is the statistical sweet spot: 18°C, 40mm rain, UV dropping to 5. December-February has its own appeal if you can handle -10°C with wind chill.
June vs Adjacent Months
| Metric | May | June | July |
|---|---|---|---|
| Mean Temp | 16.5°C (61.7°F) | 21.9°C (71.4°F) | 25.0°C (77.0°F) |
| Rainfall | 128.4mm | 176.5mm | 324.3mm |
| Sunshine | 9.5 hrs | 9.2 hrs | 8.1 hrs |
| Humidity | 70.6% | 75.5% | 83.6% |
| Wind | 18.6 km/h | 17.5 km/h | 16.4 km/h |
| Rainy Days | 12.2 | 17.4 | 24.2 |
Seasonal Context
June falls in Summer in the Northern Hemisphere. Summer brings the warmest conditions of the year with the longest daylight hours. For travelers visiting Seoul in June, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Seoul in June?
The average temperature in Seoul during June ranges from 17.8°C (64.0°F) to 26.9°C (80.4°F), with a mean of 21.9°C (71.4°F).
How much does it rain in Seoul in June?
Seoul receives an average of 176.5mm of precipitation in June, spread across approximately 17.4 rainy days.
What should I pack for Seoul in June?
Based on June weather data, pack layers including light jackets and t-shirts, plus an umbrella. Rain gear is essential — this month averages 176.5mm of precipitation.
Is June a good time to visit Seoul?
June is a month with challenging conditions. Plan activities carefully and stay hydrated.
Other Months for Seoul
Cities with Similar June Climate (Humid Continental)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 37.57°, 126.98°. Timezone: Asia/Seoul. Last updated: 2026-07-30.