30YearWeather
San Juan
When to avoid visiting San Juan, Puerto Rico
Seasonal Comparison

Least Favorable Months in San Juan

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

June50/100July51/100August51/100

Good news: San Juan has no truly bad months!

With a score of 50/100, even June(the "worst" month) is still a reasonable time to visit. These months are simply the least favorable compared to other months in San Juan, not objectively bad. Many travelers enjoy visiting during these periods and benefit from lower prices and fewer crowds.

Why June is the Least Favorable (But Still Okay) Time to Visit San Juan

Is June a Good Time to Visit San Juan?

👌Worthwhile timing with some trade-offs
Short Answer

Storm season alert for San Juan in June: beyond the 31°C, 26% rain averages, hurricane risk requires travel insurance and schedule flexibility.

Decision Factors

Atlantic Hurricane season active

Atlantic zone - expect potential atlantic hurricane activity

Oppressive heat and humidity

31.2°C with 76% humidity - challenging conditions

Vaccinations required

Yellow Fever

Feels significantly hotter than 31.2°C

Heat index: 40°C due to 76% humidity

Warm tropical seas

28.9°C sea temperature - Tropical Bath

Peak tourist season

88% of annual peak - expect crowds and high prices

Good For

  • 🏖️
    Beach lovers

    28.9°C warm seas and 26% rain probability

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👨‍👩‍👧‍👦
    Families with children

    40°C heat index dangerous for children

  • 👴
    Elderly travelers

    Heat index of 40°C poses health risks

  • 💼
    Business travelers

    Storm season may cause flight disruptions

900 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

Worst50

June

Atlantic Hurricane season active, Oppressive heat and humidity

View details
2nd Worst51

July

Atlantic Hurricane season active, Oppressive heat and humidity

View details
3rd Worst51

August

Atlantic Hurricane season active, Oppressive heat and humidity

View details

Looking for the Best Time Instead?

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

Best Time to Visit San Juan

Frequently Asked Questions

When should I avoid visiting San Juan?

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

What is the worst month to visit San Juan?

June is typically the most challenging month, scoring only 50/100 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.