The most active month of the year in terms of outdoor festival fun, Montreal July weather is HOT! It's also humid as hell, so be prepared to sweat: much like in New Orleans, 30ºC (86ºF) in Montreal can feel more like 40ºC (104ºF).
- Average July temperature: 22.3ºC / 72ºF
- Average July high (day): 26.6ºC / 80ºF
- Average July low (night): 17.9ºC / 64ºF
- Record high: 36.1ºC / 97ºF
- Record low: 7.8ºC / 46ºF
Precipitation**: anticipate 11 days of moderate to heavy rain in July and 12 days involving light showers.
What to Wear
Dress light. Very light. And don't go near anything polyester lest you live to regret the foot-wide patch of sweat expanding over your torso as you bake in what feels like plastic wrap covering your body. Instead, opt for natural, lightweight fabrics like linen, a comfort saver on a hot and humid festival day, and consider merino wool t-shirts and tanks, which minimize sweat patches by wicking away sweat quickly and effectively, this without damaging or discoloring the fabric. Seriously. It sounds counterintuitive to wear wool but merino wool is somewhat of a miracle fabric. It warms you up in the winter and cools you down in the summer. The trick with merino is to wear the appropriate thickness, which for summer, translates into a thinner fabric that offers more heat relief than cotton.
What to Pack
- Shorts, linen pants, short-sleeved and sleeveless shirts, tank tops, summer dresses (particularly maxi dresses which are comfortable on a warm day and yet can withstand a temperature drop in the evening)
- Light cardigans (e.g., linen, merino wool), wraps, light cotton jackets, blazers, windbreakers
- Long pants, jeans, leggings made of breathable material
- Closed-toe shoes, open-toe shoes, sandals
- Sunglasses and sunscreen are a must year-round; sunhat could be useful
- Umbrella and/or raincoat
The most vibrant month of the year, Montreal weather in July is as hot as its event calendar.
Locals who aren't out of town on vacation in July come out in droves to make the most of the hottest month of the year, whether it's lingering in Montreal's large parks, on city beaches, or at Montreal's various outdoor festivals and sidewalk sales.
*Source: Environment Canada. Average temperatures, extremes, and precipitation data retrieved September 14, 2010.