Updated August 29, 2019

All dates below are from 2019. None of these dates will be updated for next year before March 2020. Most seasons follow a similar pattern but there are novelties and changes from time to time.

March

March 21-24: Cabane Panache et Bois rond on Wellington Street in Verdun, the first street fair of the year

May

May 24 and 25: Closure of lower St-Denis to mark the opening of terrasse season. Quartier Latin
May 25, 10 a.m. to 1 p.m.: Mile End en Fleurs on St-Viateur between de Gaspé and Henri-Julien
May 23-26: Promenade Masson in Rosemont
May 30-June 2: Mont-Royal street fair from St-Laurent east to d’Iberville
May 30-June 2: Ontario Street from Darling to Pie-IX: Le Branle-bas d’Hochelaga

June

June 1: A new entry this year, Jarry between St-Gérard and Châteaubriand (3 blocks, one day only)
June 6-16: Mural Festival on the Main from Sherbrooke to Mont-Royal
June 6-8: Westmount, Victoria Village sidewalk sale
June 7-9: Grand Prix weekend. Crescent Street and part of Peel Street are closed for festivals from Thursday to Sunday. Boulevard Saint-Laurent in Little Italy closes for a festival from Friday to Sunday.
June 7-9: Promenade Wellington street fair
June 14: Roumeliotes Association feast at Liège and Querbes
June 21-28: The Marché des Possibles is atypical, taking place on the green space at St-Dominique and Bernard, near the Van Horne overpass, rather than on a commercial street

July

Sunday, July 7: San Marziale around Waverly and St-Viateur. The official saint’s day is June 30 according to the Italian Wikipedia and it’s usually celebrated on a Sunday early in July, but seldom widely announced.
July 12-14: Ste-Catherine street sale, promoted as the biggest one in Canada.
July 19-21: Plaza St-Hubert, in a reprieve between bouts of road renovation, lists these dates as well as July 26‑28 and August 2‑4 as sidewalk sale days.

August

August 2-4: Plaza St-Hubert
August 10-11: La Grande fabrique, Ste-Catherine East between Aird and Bourbonnière. Neighbourhood street sale and artisanal products.
August 17-18: final weekend of Italian Week in Little Italy. Boulevard Saint-Laurent closed between Saint-Zotique and Jean-Talon.
August 22-25: Mont-Royal, street sale plus arty event called RU.
August 23-25: Promenade Wellington: street fair with a back-to-school theme
August 23-25: Westmount, Victoria Village sidewalk sale
August 24-25: 18th-century public market around Place Royale in Old Montreal
August 29-September 1: Boulevard piéton, Boulevard Saint-Laurent on the usual stretch from Sherbrooke to Mont-Royal.
August 29-September 1: Ontario between Darling and Pie-IX
August 30-September 1: Asian night market in Chinatown

September

September 5-8: Promenade Masson