30YearWeather
San Sebastian
When to avoid visiting San Sebastian, Spain
Seasonal Comparison

Least Favorable Months in San Sebastian

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

June63/100November63/100December63/100

Good news: San Sebastian has no truly bad months!

With a score of 63/100, 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 Sebastian, 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 Sebastian

Is June a Good Time to Visit San Sebastian?

👌Worthwhile timing with some trade-offs
Short Answer

Ideal beach conditions in San Sebastian during June: 20.6°C turquoise waters, 22°C air, 31% rain. 0.9m calm waves suit families and swimmers alike.

Decision Factors

Vaccinations required

Yellow Fever

Very high humidity

82% average humidity

Peak tourist season

100% of annual peak - expect crowds and peak prices

Ideal temperature range

21.6°C - perfect for sightseeing and outdoor activities

Health precautions needed

Be aware of: Leptospirosis, Leishmaniasis, Hantavirus

Plenty of sunshine

10.6h of sunshine daily

Good For

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👴
    Elderly travelers

    82% humidity creates difficult conditions

900 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

Worst63

June

Very high humidity, Peak tourist season

View details
2nd Worst63

November

Rough sea conditions

View details
3rd Worst63

December

Rough sea conditions

View details

Looking for the Best Time Instead?

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

Best Time to Visit San Sebastian

Frequently Asked Questions

When should I avoid visiting San Sebastian?

Based on 30 years of data, the most challenging months are June, November, December. Primary concerns include: very high humidity, peak tourist season.

What is the worst month to visit San Sebastian?

June is typically the most challenging month, scoring only 63/100 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.