Best Time to Visit Longueuil
Best time: Jun, Jul, Aug, May.
Jul is warmest (27.1°C high); Sep is rainiest (98 mm).
Longueuil weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | -5.2 | -14.7 | 73 | 2.4 |
| Feb | -3.4 | -13.1 | 62 | 3.8 |
| Mar | 2.4 | -6.9 | 74 | 5.5 |
| Apr | 10.5 | 0.7 | 78 | 7.3 |
| May | 19.1 | 7.5 | 83 | 8.5 |
| Jun | 24.2 | 12.8 | 91 | 9.4 |
| Jul | 27.1 | 15.9 | 94 | 9.1 |
| Aug | 26 | 15 | 95 | 8 |
| Sep | 20.9 | 10.5 | 98 | 6 |
| Oct | 13.5 | 4.5 | 85 | 3.7 |
| Nov | 6.1 | -1.2 | 94 | 2.2 |
| Dec | -1.4 | -9.8 | 88 | 1.8 |
Average high temperature
Best months by activity
Overall: JunJulAugMay
Beaches: Jul
Hiking: MayJunAug
Sightseeing: JunMayJulAug
Longueuil quick facts
What to pack
Cold months (Jan, Feb, Mar, Apr, Nov, Dec): warm layers and a coat.
Wet months (Jun, Jul, Aug, Sep, Nov): raincoat and umbrella.
Frequently asked questions
When is the best time to visit Longueuil?
Jun, Jul, Aug, May.
What is the rainiest month?
Sep, about 98 mm.
What is the warmest month?
Jul, with average highs of 27.1°C.
Where to stay
See Longueuil hotels · Book Longueuil tours & activities
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Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.