Climate in Pamplona
Pamplona sits in the Arga basin in a transition zone between the oceanic climate of northern Navarre and the continental Mediterranean of the Ribera. Summers are warm with average highs of 28 degrees Celsius, and winters are cold with occasional snowfalls.
Annual rainfall is around 760 mm, spread across the year but peaking in autumn and winter. Persistent fog over the basin is common between November and February.
A warm, dry southerly wind (Pyrenean foehn) can spike winter temperatures above 25 degrees for a day or two before a rain front arrives. In summer, Pyrenean afternoon storms are frequent.
Best time to visit is May to September, with the San Fermines in July as the highlight. Use the hourly forecast, rain probability and UV index before planning the citadel, the old town or a trip to the Pyrenees.