30YearWeather
Seoul
When to avoid visiting Seoul, South Korea
Seasonal Comparison

Least Favorable Months in Seoul

Based on 30 years of NASA satellite data, Seoul enjoys relatively good weather year-round. However, if you're comparing months, July, August, June are the least favorable — though still perfectly visitable.

July55/100August56/100June64/100

Good news: Seoul has no truly bad months!

With a score of 55/100, even July(the "worst" month) is still a reasonable time to visit. These months are simply the least favorable compared to other months in Seoul, not objectively bad. Many travelers enjoy visiting during these periods and benefit from lower prices and fewer crowds.

Why July is the Least Favorable (But Still Okay) Time to Visit Seoul

Is July a Good Time to Visit Seoul?

👌A reasonable choice for your trip
Short Answer

Monsoon conditions shape Seoul's July: expect 44% daily rain chance. Mornings often clear before afternoon showers - early starts recommended.

Decision Factors

Oppressive heat and humidity

28.8°C with 83% humidity - challenging conditions

Vaccinations required

Yellow Fever

Feels significantly hotter than 28.8°C

Heat index: 35°C due to 83% humidity

Peak tourist season

91% of annual peak - expect crowds and peak prices

Health precautions needed

Be aware of: Leptospirosis, Avian/Bird Flu, Hantavirus

Rich cultural heritage

4 UNESCO World Heritage sites nearby

Good For

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👴
    Elderly travelers

    83% humidity creates difficult conditions

  • 🌡️
    Heat-sensitive visitors

    35°C feels-like temperature creates discomfort

930 observations30-year historical data
Confidence: 95%

Key Challenges During These Months

Extreme Heat

Temperatures can become dangerously hot with oppressive humidity

Months to Avoid: Detailed Breakdown

Worst55

July

Oppressive heat and humidity, Feels significantly hotter than 28.8°C

View details
2nd Worst56

August

Oppressive heat and humidity, Feels significantly hotter than 29°C

View details
3rd Worst64

June

Peak tourist season

View details

Looking for the Best Time Instead?

Discover the optimal months to visit Seoul with ideal weather conditions, fewer crowds, and better prices.

Best Time to Visit Seoul

Frequently Asked Questions

When should I avoid visiting Seoul?

Based on 30 years of data, the most challenging months are July, August, June. Primary concerns include: oppressive heat and humidity, feels significantly hotter than 28.8°c.

What is the worst month to visit Seoul?

July is typically the most challenging month, scoring only 55/100 in our travel conditions analysis.

Can I still visit during these months?

Yes, many travelers still visit during challenging months. Come prepared with appropriate gear, flexible bookings, and backup plans. Lower prices and fewer tourists can offset the weather challenges.

Are hotels cheaper during these months?

Often yes. Low season typically means reduced hotel rates, easier reservations, and fewer crowds at popular attractions. Some travelers prefer this trade-off.