How it works
The When to Go page has two modes. Pick a month to see which cities score highest for that period. Or select multiple cities and find the month where all of them overlap at their best. Seasonality scores are based on weather, tourism patterns, and local events.
Seasonality calendar on city pages
Every city page includes a Season Calendar showing 12-month seasonality scores. Gold-highlighted months are the recommended peak. The calendar also powers the sparkline on city cards.
Using this for multi-city trips
If you're planning a trip to multiple destinations, use the When to Go tool to find the best overlap month. Select all your candidate cities and the tool will highlight months where the most cities are in good season simultaneously.