December in Eskilstuna averages a daily high of 1.5°C with nights around -4.1°C. Expect roughly 16.2 wet days totalling 41.2mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Eskilstuna is June–September.
Based on ESKILSTUNA MO, SW (3.6km), 1995–2024. 27 years of December data.