Planning a summer vacation in Korea this year?
Here’s a quick guide to what the weather might look like during the peak 2025 holiday season.
Based on mid-range forecasts from Korea Meteorological Administration.
(Written for domestic travelers in Korea – not region-specific, but nationwide trends.)
Do you also check the weather before planning your summer vacation? Or is it just me?
As of now, there’s barely any forecast data available when you search “summer vacation weather 2025” on Google.
So I gathered and organized it in advance, based on Korea’s climate and official mid-term weather reports.
✅ When is Korea’s summer vacation season?
In Korea, summer vacation for workers and families typically falls between late July and mid-August.
The peak travel period is around early August, especially leading up to National Liberation Day (Aug 15).
🗓️ In 2025, August 15 lands on a Friday, meaning a potential long weekend (golden holiday)!
✅ Nationwide Weather Outlook by Category
| Element | Forecast |
|---|---|
| 🌡️ Temperature | Daytime highs of 33–36°C / Feels-like temp above 37°C |
| 💦 Humidity | High even after the monsoon season → higher discomfort index |
| 🌃 Tropical nights | Expected to last 10+ nights in cities like Seoul and Daegu |
| 🌧️ Rain | Monsoon ends in late July, scattered showers possible in early August |
| 💨 Wind | Almost no wind inland → can feel even hotter |
Interesting note: The monsoon season (장마, jangma) is a defined wet period in Korea, typically lasting 3–4 weeks in summer.
Many travelers try to avoid it when planning their trips.
✅ Weekly Weather Summary Table
| Date Range | Weather Forecast | Travel Tips |
|---|---|---|
| July 20–25 | End of monsoon / Cloudy & occasional rain | Consider alternative destinations |
| July 26–Aug 2 | Monsoon ends / Hot & humid begins | Peak vacation season begins |
| Aug 3–10 | Hottest days / Tropical nights in full swing | Plan indoor activities wisely |
| Aug 11–15 | Scattered showers + heat | Pack umbrellas / Stay cool indoors |
🇰🇷 Note: This forecast is for domestic travel within Korea.
It reflects nationwide trends (Seoul, Jeju, Gangwon, southern coast, etc.)
and does not include regional micro-forecasts or international travel advice.
✅ Reference
👉 Korean Meteorological Administration: Nationwide Mid-Term Forecast (in Korean)
Mid-range forecasts are updated every 10 days.
Be sure to check again just before your trip!
✅ Final Tip
This summer in Korea will likely bring:
- High temperatures
- Persistent humidity
- Tropical nights
- Sudden showers
Plan your holidays early, and don’t forget to pack:
☂️ Umbrellas, 🌀 fans, and proper heat management gear!
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