Rotterdam in July

April through September gives you the best weather and longest days. Summer temperatures hover around 20°C – perfect for walking along the waterfront or cycling between neighborhoods. But July and August bring crowds and higher hotel prices. May hits the sweet spot. Tulip season is wrapping up, the weather is mild, and locals emerge from their winter hibernation. Restaurant terraces reopen and the city feels alive again. Winter in Rotterdam is gray and wet, but indoor attractions like the Boijmans Van Beuningen depot and Kunsthal Rotterdam make it bearable. Hotel prices drop by 30% between November and March. Just pack a good rain jacket. Avoid King's Day (April 27) unless you love massive street parties. The entire city turns orange and accommodation prices triple. Architecture Day in June offers free access to normally private buildings – worth planning around if you're into design.