August in Södermalm averages a daily high of 22.4°C with nights around 14.3°C. Expect roughly 9 wet days totalling 25.5mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Södermalm is June–August.
Based on STOCKHOLM A, SW (3.2km), 1995–2024. 27 years of August data.