Montréal in June

When to go

June brings the start of summer to Montréal. Environment and Climate Change Canada's most recent normals for the Montréal-Trudeau station list the month's typical highs and lows, its rain days and the days when the humidex runs high, so pack for warm afternoons and cooler evenings and check the forecast close to your dates. The Québec government's Fête nationale site says festivities take place across Québec on the twenty-third and twenty-fourth of June. Tourisme Montréal lists Les Francos de Montréal in mid-June and the Jazz Festival from late June into early July, both in the Quartier des spectacles.

Trip facts

• Environment and Climate Change Canada's 1991–2020 Canadian Climate Normals for the Montreal Trudeau (Airport) station list, for June, a daily maximum of 24.2 °C, a daily minimum of 13.8 °C, 83.6 mm of precipitation, 12.9 days with at least 0.2 mm of precipitation and 9.0 days with a humidex of 30 or more. (climate.weather.gc.ca, checked 2026-10-16)
• The Québec government's Fête nationale website says the Fête nationale is celebrated in every region of Québec, with national, regional and local festivities offered on June 23 and 24. (fetenationale.gouv.qc.ca, checked 2026-10-16)
• Tourisme Montréal's listing shows Les Francos de Montréal from June 11 to June 19, 2027 in the Quartier des spectacles, a festival of French-language music with nearly 150 concerts, most of which are presented for free. (www.mtl.org, checked 2026-10-16)
• Tourisme Montréal's listing shows the Festival International de Jazz de Montréal from June 25 to July 4, 2027 in the Quartier des spectacles, with some 3,000 performers and musicians from over 30 countries and a vast number of indoor and outdoor concerts, most of which are free. (www.mtl.org, checked 2026-10-16)
• The Canada Border Services Agency says that, to prove identity and citizenship, regardless of age, it recommends US citizens travel with a valid passport, that they may also present documents showing their full name, date of birth and citizenship, and that documents required by the airlines may be different than what the CBSA requires upon entry. (www.cbsa-asfc.gc.ca, checked 2026-10-16)
• The Canada Border Services Agency says you can make your customs and immigration declaration with Advance Declaration in the ArriveCAN app up to 72 hours before a flight into a participating airport, and lists Montréal-Trudeau International Airport (YUL) among them. (www.canada.ca, checked 2026-10-16)
• Montréal-Trudeau's help centre says YUL provides border preclearance for passengers bound for the United States, so they will not have to submit to any other formalities when arriving in the United States, and that they must have all the required documentation to enter the United States, including a valid passport. (yulsatisfaction.admtl.com, checked 2026-10-16)
• Montréal-Trudeau's help centre says the 747 bus line runs between YUL and downtown Montréal 24 hours a day, 7 days a week, on a short route between Lionel-Groulx metro station and YUL (approximately 30 to 35 minutes) and a long route between the Gare d'autocars de Montréal (Berri-UQAM station) and YUL with 11 stops (approximately 45 to 70 minutes). (yulsatisfaction.admtl.com, checked 2026-10-16)
• Montréal-Trudeau's help centre says the fare for the 747 line is $11.25 and includes unlimited travel for 24 hours on the entire STM bus and métro network. (yulsatisfaction.admtl.com, checked 2026-10-16)
• Tourisme Montréal says the STM is composed of a four-line Métro system linked with 220 daytime bus lines and 23 night routes, and that children aged 11 and under can travel for free at all times when accompanied by someone 14 or older who holds a valid transit fare, an offer that also applies to the 747 YUL Airport / Downtown bus line. (www.mtl.org, checked 2026-10-16)