August in Norrköping averages a daily high of 22.2°C with nights around 12.4°C. Expect roughly 11.7 wet days totalling 64mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Norrköping is May–September.
Based on NORRKOPING SMHI, SW (2.5km), 1995–2024. 30 years of August data.