The Best Time to Visit Belgium
Without doubt, the best time to visit Belgium is in the springtime, for tulip season. During this time, all of Holland is brightly painted with endless fields of rainbow tulips set on the backdrop of old windmills that reminisce of fairy tales. These "Tulip Time" cruises are the most popular time in Belgium and the Netherlands, especially for cruises that visit multiple cities, so make sure to book your trip in advance.
Of course, that's not the only time to visit Belgium, and cruises departing from or passing through Antwerp are great all throughout the summer season and into the early autumn, when the weather is starting to cool off.
You will not find December-early March cruises of this region as the temperatures drop significantly going into the frigid months of the northern hemisphere's winter season.