30YearWeather
Perth
When to avoid visiting Perth, Australia
Seasonal Comparison

Least Favorable Months in Perth

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

July62/100August64/100September64/100

Good news: Perth has no truly bad months!

With a score of 62/100, even July(the "worst" month) is still a reasonable time to visit. These months are simply the least favorable compared to other months in Perth, 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 Perth

Is July a Good Time to Visit Perth?

👌Decent conditions for most activities
Short Answer

Popular July in Perth offers 17°C and 33% rain chance - excellent conditions that attract maximum visitors. Book 3-6 months ahead for best rates.

Decision Factors

Vaccinations required

Yellow Fever

Rough sea conditions

1.59m average wave height - Surfers Only

Peak tourist season

100% of annual peak - expect crowds and peak prices

Health precautions needed

Be aware of: Leptospirosis, Melioidosis, Dengue

Plenty of sunshine

8.1h of sunshine daily

Good For

  • 📸
    Photographers

    8.1h sunshine, 52% clear skies for golden hour shots

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

  • 🎯
    Adventure seekers

    1.59m waves - good for surfing and water sports

Who Should Avoid

  • 🏖️
    Beach lovers

    Sea temperature only 16.9°C - too cold for comfortable swimming

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👴
    Elderly travelers

    76% humidity creates difficult conditions

930 observations30-year historical data
Confidence: 99%

Key Challenges During These Months

Challenging Conditions

Weather conditions may limit outdoor activities and sightseeing options

Months to Avoid: Detailed Breakdown

Worst62

July

Rough sea conditions, Peak tourist season

View details
2nd Worst64

August

Rough sea conditions

View details
3rd Worst64

September

Peak tourist season

View details

Looking for the Best Time Instead?

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

Best Time to Visit Perth

Frequently Asked Questions

When should I avoid visiting Perth?

Based on 30 years of data, the most challenging months are July, August, September. Primary concerns include: rough sea conditions, peak tourist season.

What is the worst month to visit Perth?

July is typically the most challenging month, scoring only 62/100 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.