September in Oviedo averages a daily high of 22.2°C with nights around 13.3°C. Expect roughly 10.7 wet days totalling 63.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Oviedo is June–October.
Based on OVIEDO, SP (2.4km), 1995–2024. 28 years of September data.