July in Västerås averages a daily high of 23.1°C with nights around 13.2°C. Expect roughly 12 wet days totalling 76mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Västerås is June–September.
Based on VASTERAS HASSLO, SW (5.2km), 1995–2024. 26 years of July data.