January in Gatineau averages a daily high of -5.1°C with nights around -14.7°C. Expect roughly 13.1 wet days totalling 65.7mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Gatineau is May–September.
Based on CHELSEA, QC CA (7.7km), 1995–2024. 25 years of January data.