August in Santiago de Compostela averages a daily high of 25.1°C with nights around 13.6°C. Expect roughly 7.3 wet days totalling 52.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Santiago de Compostela is June–September.
Based on SANTIAGO DE COMPOSTELA LABACOL, SP (11km), 1995–2024. 30 years of August data.