30YearWeather
Osaka
When to avoid visiting Osaka, Japan
Seasonal Comparison

Least Favorable Months in Osaka

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

July51/100August53/100September53/100

Good news: Osaka has no truly bad months!

With a score of 51/100, even July(the "worst" month) is still a reasonable time to visit. These months are simply the least favorable compared to other months in Osaka, 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 Osaka

Is July a Good Time to Visit Osaka?

👌Good option with minor considerations
Short Answer

Storm season alert for Osaka in July: beyond the 31°C, 37% rain averages, hurricane risk requires travel insurance and schedule flexibility.

Decision Factors

Typhoon season active

Western Pacific zone - expect potential typhoon activity

Oppressive heat and humidity

30.5°C with 79% humidity - challenging conditions

Vaccinations required

Yellow Fever

Feels significantly hotter than 30.5°C

Heat index: 39°C due to 79% humidity

Warm tropical seas

29.1°C sea temperature - Hot Soup

Seismically active region

13 earthquakes recorded in this month (30-year data)

Good For

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👨‍👩‍👧‍👦
    Families with children

    39°C heat index dangerous for children

  • 👴
    Elderly travelers

    Heat index of 39°C poses health risks

  • 💼
    Business travelers

    Storm season may cause flight disruptions

930 observations30-year historical data
Confidence: 99%

Key Challenges During These Months

Extreme Heat

Temperatures can become dangerously hot with oppressive humidity

Storm Season

Typhoons or hurricanes can disrupt travel and cause dangerous conditions

Months to Avoid: Detailed Breakdown

Worst51

July

Typhoon season active, Oppressive heat and humidity

View details
2nd Worst53

August

Typhoon season active, Very hot conditions

View details
3rd Worst53

September

Typhoon season active, Oppressive heat and humidity

View details

Looking for the Best Time Instead?

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

Best Time to Visit Osaka

Frequently Asked Questions

When should I avoid visiting Osaka?

Based on 30 years of data, the most challenging months are July, August, September. Primary concerns include: typhoon season active, oppressive heat and humidity.

What is the worst month to visit Osaka?

July is typically the most challenging month, scoring only 51/100 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.