Most of the city’s 3three million to 4 four million annual visitors come in the summer months between June and September. June sees the longest days, with the sun rising just after 5 a.m. and setting after 10 p.m. Evenings on the canals are particularly beautiful, with the bridges decorated with fairy lights and the sky a peacock blue. And while the streets are busy, they don’t throng with visitors as they do in peak months. The summer festival season kicks off in June with the Holland Festival of classical and contemporary music and a string of cultural events in Vondelpark, the city’s largest green space.
July and August are Amsterdam’s busiest months, with the longest queues at museums and galleries. These are the sunniest months as well, though temperatures rarely climb out of the seventies and drop into the low fifties in the evenings. During the Grachtenfestival canal festival in mid-August, waterside concerts pop up at some 100 makeshift venues throughout the city.
Autumns are cool and damp, with overcast skies and frequent rain showers. Winters run from November through March and, though generally quite mild, bring sporadic flurries of snow. The mercury rarely drops below 30. During these months, Amsterdam is almost empty of visitors, except for the annual High Times Cannabis Cup in November and for Oudejaarsavond (New Year's Eve), when the city holds one of northern Europe’s bawdiest parties.
Spring is a great time to visit Amsterdam. Between late March and May, Holland’s famous tulips are in bloom, most spectacularly in the vast Keukenhof gardensGardens, where beds are a riot of brilliant reds, blues, and pinks. And in April, the city hosts its biggest annual festival, Koninginnedag (Queen's Day).