The prime time for Bordeaux travel is between June and August.
For fewer crowds and lower rates, come in spring, or autumn. One downfall of coming in fall: starting in September, the wineries start doing their harvests, and some don’t allow visitors. While it can get chilly, a December visit to Bordeaux is very Christmas-festive. No matter the season, you might get some rain in Bordeaux: spring and fall can see frequent showers, and so can the otherwise hot summers.