October in Porto averages a daily high of 20.9°C with nights around 12.8°C. Expect roughly 13.4 wet days totalling 140.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Porto is June–September.
Based on PORTO, PO (1.9km), 1995–2024. 17 years of October data.