In December 2025, Basel experienced an increase in tourism activity compared to previous years. Arrivals reached 101,142, marking a 6% rise from 2024 and a 25% increase from 2023. Similarly, overnight stays totaled 175,960, which is a 3% increase from the previous year and a 23% increase from 2023. The number of available rooms slightly decreased to 140,110, while occupied rooms increased to 99,867, indicating a higher occupancy rate. The average stay duration slightly decreased to 1.7 days from 1.8 days in previous years.

Hotel occupancy rates varied by category, with higher-end hotels showing higher occupancy rates, reflecting a trend towards more luxury accommodations. The data indicates that Swiss nationals contributed the most to overnight stays, accounting for 35% of the total, followed by visitors from the United States, Germany, Italy, and the United Kingdom. Notably, the United States showed a significant presence, with 10.5% of the total overnight stays, suggesting a growing interest from American tourists.

Seasonal effects typical for December, such as holiday travel, likely contributed to the increased tourism activity. There were no significant anomalies or special events noted in the data that would have skewed these figures. Overall, Basel's tourism sector showed robust growth in December 2025, with a notable increase in both arrivals and overnight stays, reflecting a positive trend for the city's hospitality industry.