January in Sollentuna averages a daily high of 0.8°C with nights around -4.2°C. Expect roughly 6.3 wet days totalling 24.5mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Sollentuna is June–August.
Based on STOCKHOLM BROMMA, SW (8.3km), 1995–2024. 30 years of January data.