July in Porto averages a daily high of 24.4°C with nights around 15.5°C. Expect roughly 5.1 wet days totalling 23.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Porto is June–September.
Based on PORTO, PO (1.9km), 1995–2024. 17 years of July data.