January in Tournai averages a daily high of 6.6°C with nights around 1.6°C. Expect roughly 15.2 wet days totalling 59.9mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Tournai is May–September.
Based on LILLE LESQUIN, FR (21km), 1995–2024. 30 years of January data.