BTS Comeback Performance at Gwanghwamun Square: March 20th Weather Forecast
It is difficult to confirm the exact weather (whether it will rain, be sunny, etc.) for March 20, 2026, as it is still about two months away from today (January 28), even with modern meteorological technology.
However, based on historical weather data and Seoul’s average climate, we can predict the most likely weather conditions. Naturally, I received some help from AI for this analysis.
Looking back at the weather in Gwanghwamun, Seoul on March 20, 2025 (Thu), based on a 12-hour format: It was quite chilly during the morning commute, but the temperature rose significantly in the afternoon, making it mild. However, it was a day with hazy mist (fine dust) throughout the day, causing poor visibility.
🕒 Detailed Hourly Weather (Gwanghwamun – Past Data)
| Time | Temp | Weather & Conditions |
| 12:00 AM | 5°C | ☁️ Cloudy (Midnight) |
| 03:00 AM | 3°C | ☁️ Cloudy |
| 06:00 AM | 1°C | 🌫️ Light Mist / Lowest Temp (Chilliest) |
| 09:00 AM | 6°C | 🌫️ Mostly cloudy & Haze (Mask essential for commute) |
| 12:00 PM | 12°C | 🌫️ Mostly cloudy & Haze (Mild lunch time) |
| 03:00 PM | 14°C | ☁️ Cloudy / Highest Temp (Good for activity but bad air quality) |
| 06:00 PM | 11°C | ☁️ Cloudy (Cool commute home) |
| 09:00 PM | 8°C | ☁️ Cloudy |
📝 Summary
- AM: Temperatures dropped to 1°C around 6 AM, requiring a coat or light padded jacket.
- PM: Temperatures rose to 14°C during the day, feeling like full spring, but the sky wasn’t clear due to fine dust and haze.
- Note: The daily temperature range was wide (13-degree difference), creating an environment prone to catching colds.
Regarding the weather for BTS’s comeback stage at Gwanghwamun Square (their first in 3 years):
We cannot confirm the exact weather for March 20, 2026 (Fri) right now (about 50 days away). However, by analyzing the last 30 years of climate data and average weather patterns for Gwanghwamun, Seoul, we can predict the most probable scenario. Please use this for planning purposes.
📅 March 20, 2026 Gwanghwamun Weather Prediction
This day marks Chunbun (Spring Equinox), the time when spring truly begins.
1. Temperature Outlook (Beware of large temperature gap)
- Morning (Low): 3°C ~ 5°C (Chilly like early winter)
- Day (High): 12°C ~ 14°C (Light clothing possible)
- Features: The temperature difference between morning and day is expected to be over 10 degrees. A coat is essential for the morning commute, but you might feel warm during lunchtime.
2. Sky & Atmospheric Conditions
- Sky: Due to the influence of migratory anticyclones, it is highly likely to be clear or slightly cloudy.
- Fine Dust: Late March is one of the seasons with the highest concentration of Yellow Dust or Fine Dust in the year. Since Gwanghwamun is a city center, the air might feel heavier, so preparing a mask might be necessary.
3. Clothing Recommendations
- Recommended: Trench coat, cardigan, thin light padded vest.
- It is better to wear multiple layers of thin clothing that are easy to put on and take off, rather than one thick coat.
💡 Tip: The most accurate forecast (rain probability, etc.) can be checked via the Korea Meteorological Administration around March 13, about a week prior.
For this comeback event at Gwanghwamun Square, which global ARMY is watching, if there is no fine dust, it will truly be a beautiful night for ARMY.
Here are direct links to the official Korea Meteorological Administration (KMA) website and historical weather data.
1. Weather Nuri (Main Website)
The representative site to check current weather, forecasts, and special warnings.
🔗 Link: https://www.weather.go.kr
2. Past Weather Inquiry
The page where you can search for temperatures and rainfall by specific past dates and times, as seen above.
🔗 Link: KMA Past Observations (Land) Shortcut
How to use: Access the link, select ‘Location (Seoul)’, ‘Year/Month/Day’, and click [Search].
3. Weather Data Service Portal
A professional site where you can download all official records and statistical data from the KMA in Excel format.
🔗 Link: https://data.kma.go.kr
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