December in Kungsholmen averages a daily high of 2.4°C with nights around -1.3°C. Expect roughly 14.5 wet days totalling 43.4mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Kungsholmen is June–August.
Based on STOCKHOLM A, SW (1.4km), 1995–2024. 29 years of December data.