San Sebastián in August
Great time to visit
August is when San Sebastián completely loses its mind in the best possible way. Semana Grande transforms the city into one giant party, but expect crowds that would make Tokyo blush.
Weather
August continues July's sunny streak but adds more heat and humidity. The Atlantic provides essential cooling, though even morning beach walks can feel warm. Thunderstorms occasionally break the heat with dramatic but brief downpours.
27°C high18°C low6 rain days
Crowds & Cost
peak crowds
~$190/day average
Events & Festivals
- •Semana Grande (mid-August)
- •International Fireworks Competition
- •Assumption Day (August 15)
August Tips
- •Semana Grande means hotel prices triple - book elsewhere in Basque Country
- •The entire city revolves around festival schedule
- •Escape to Hondarribia or Getaria for breathing room
All Months
July and August bring perfect beach weather but also crowds and €300+ hotel rates. La Concha gets packed by noon, and good pintxos bars require 20-minute waits.
September hits the sweet spot - warm ocean temperatures, fewer tourists, and restaurant reservations become possible again. The International Film Festival in late September adds glamour but books up accommodation.
May through June offers mild weather perfect for walking. Ocean stays chilly (around 18°C) but pintxos season runs year-round. Hotel prices drop 40% from peak summer.
October can surprise you with warm days, though rain becomes more frequent. Many beach clubs close by month's end, but the food scene never sleeps.
Winter (November-March) brings serious rain and wind. But this is when locals reclaim their city, and you'll find the most authentic pintxos experiences without tourist crowds.
San Sebastián Scores
Solo
8/10
Couples
9/10
Families
7/10
Adventure
5/10
Budget
4/10
Luxury
9/10
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