Best: Jun-Sep · Jul for San Fermín (Running of the Bulls)
Weather shifts through genuine seasons here, from December's cool stretch to July's warmth, with rain a little heavier around January and lighter around July — real variation, but nothing as sharp as a true monsoon or Mediterranean dry season. In July, expect highs around 27°C with rain on roughly 9 days of the month.
San Fermín (Running of the Bulls) (July) — The daily encierro sends bulls charging through the old town's narrow streets each morning from July 6-14, followed by fireworks and nonstop celebration late into the night.
Walk the medieval old town and the Plaza del Castillo, then follow the actual bull-run route along Calle Estafeta if visiting outside festival week. The Ciudadela park and the Camino de Santiago's French Way, which passes directly through the city, are worth a slower day. San Fermín (July 6-14) transforms the city with the daily encierro (bull run), fireworks, and nonstop street celebration.
Try pintxos (Basque-style tapas) in the old town's bars, alongside local Navarra wines and, in season, fresh white asparagus.
Daylight, sunrise, and sunset are calculated exactly from this region's latitude. Temperature and rainfall are modeled from its general climate type, not measured station data. Month summaries are generated from those modeled figures.
Expect cool days around 10°/2°C, with frequent rain (~14 rainy days).
Expect cool days around 12°/2°C, with frequent rain (~13 rainy days).
Expect mild days around 15°/4°C, with frequent rain (~12 rainy days).
Expect mild days around 17°/6°C, with frequent rain (~14 rainy days).
Expect mild days around 20°/9°C, with frequent rain (~13 rainy days).
Expect warm days around 25°/12°C, with frequent rain (~10 rainy days).
Expect warm days around 27°/14°C, with occasional rain (~9 rainy days).
Expect warm days around 27°/14°C, with frequent rain (~10 rainy days).
Expect warm days around 24°/12°C, with frequent rain (~11 rainy days).
Expect mild days around 19°/9°C, with frequent rain (~12 rainy days).
Expect cool days around 13°/5°C, with frequent rain (~14 rainy days).
Expect cool days around 9°/3°C, with frequent rain (~13 rainy days).