April in Jeju, a volcanic island south of the Korean Peninsula, marks the transition from spring to summer. Expect average temperatures ranging from 10C to 16C (50F to 61F), with daytime highs occasionally exceeding 20C (68F). Rainfall is moderate, and sunshine hours increase, creating pleasant conditions for outdoor activities. This period witnesses the peak of cherry blossom season, transforming the landscape into a vibrant spectacle.
This time of year offers an optimal balance of comfortable temperatures and clear skies, making it ideal for exploring the island’s diverse natural beauty, from its volcanic peaks and lava caves to its stunning coastlines and waterfalls. Historically, April has been a significant month for agriculture on Jeju, with farmers preparing fields for the upcoming growing season. The pleasant weather also coincides with important local festivals celebrating the arrival of spring.