what should i pack for montreal in may?

May falls right at the start of Montreal's best travel season, which runs from May to July and returns in September. Data from 2020 to 2024 shows an average temperature of 13.2°C for May, warming up significantly from April at 5.3°C before reaching summer averages like 18.6°C in June and 21.2°C in July. For a slower-paced trip spending lots of time outdoors, packing flexible layers is ideal so you can adjust comfortably throughout the day.