![[Weekly Weather] “Summer Is Finally Here” Highs to Soar to 30°C This Week!](https://offloadmedia.feverup.com/secretseoul.com/wp-content/uploads/2026/05/11171946/shutterstock_2648474889-1-1024x678.jpg)
The weather in Seoul is still quite chilly.
The start of summer has already passed, but when on earth is the warm weather coming?
According to the Korea Meteorological Administration, the lingering chill is expected to give way to full-fledged early summer weather starting this week. Given the rapid temperature changes, it is advisable to check the daily forecast when planning your activities.
📅 Weekly Forecast: 30°C Heat Arrives After the Rain Stops
While the beginning of the week will still bring a cool, rainy feel, temperatures will rise sharply as the week progresses.
Wednesday marks a turning point in this week’s weather. On Wednesday, the high will reach 26°C, signaling the start of milder conditions. From Thursday through the weekend, temperatures are expected to fluctuate between 28°C and 30°C, with early summer weather featuring bright sunshine. It’struly theperfect time in Mayto enjoy outdoor terraces or a picnic along the Han River.
We recommend getting out and soaking up the seasonal atmosphere this weekend rather than staying indoors. If you’re still deciding on your weekend plans, check out the weekly curated suggestions from “Secret Seoul.”
May 11 (Mon) ☔ Cloudy with rain 12° / 21° Somewhat cool even during the day
May 12 (Tue) ☁️ Cloudy, then clear 14° / 22° Light outerwear required
May 13 (Wed) ⛅ Partly cloudy 14° / 26° Temperatures begin to rise
May 14 (Thu) ☀️ Mostly sunny 16° / 28° Early summer in full swing
May 15 (Fri) ☀️ Sunny 15° / 29° Beware of heat during daytime outdoor activities
Weekend (16–17) 😎 Bright sunshine 16° / 30° Perfect time for outdoor activities
