September and October
Go nowAutumn: the colour, and the crowd gone
The best window of the year. The summer visitors leave, the maples turn through late September and October, and the weather stays comfortable for walking. The Île d'Orléans and the surrounding hills are the reason people plan trips around this. Prices ease from the summer peak. Book ahead for the colour weeks.
June
Go nowWarm, long days, before the peak
Everything is open, the terraces are out, the days are long and the July crowd has not arrived. The best value of the warm months. Saint-Jean-Baptiste day on 24 June is Quebec's national holiday and a genuine city-wide celebration — worth catching, and it books up.
July and August
Worth it, butPeak summer: everything open, everything full
Warm, humid, and the busiest stretch of the year, with festivals through both months and the old town crowded through the middle of the day. Hotel prices are at their highest. Go early in the morning and late in the evening and it is lovely; between eleven and four it is a queue.
January and February
Worth it, butDeep winter: Carnaval, snow, and serious cold
Carnaval runs about two and a half weeks from late January into February and the dates move, so check the year. The old town under snow is extraordinary and the city is built to function in it. It is also below minus twenty regularly, and it demands proper boots and a real coat. Come deliberately, not by accident.
December
Worth it, butChristmas markets, in early winter
The German-style Christmas market and the old town lit and snowed on, which is exactly the postcard. Cold is setting in and the days are very short. Prices rise over the holidays. Good if the season is the reason; the snow is not yet as reliable as in January.
March and April
Think twiceThe thaw: grey, wet and between two seasons
The snow goes dirty and then goes, leaving grey streets and mud, and it is too late for winter and too early for spring. The one redeeming thing is the sugar shacks, which run through the sap season here. Cheapest weeks of the year, and the city at its least attractive.
May and November
Think twiceThe two empty edges
May is cold and often wet with the terraces not yet open; November is grey with the leaves gone and the snow not arrived. Both are cheap and quiet, and both give you a city missing the thing that makes it worth the trip — either the summer outdoors or the winter snow.