Vancouver has a mild, maritime climate with distinct seasons. Summer (June-September) offers warm, dry weather perfect for outdoor activities, though it's the busiest tourist season. Temperatures range from 20-25°C (68-77°F). Spring (March-May) brings blooming flowers and moderate crowds with temperatures around 15-20°C (59-68°F). Fall (September-November) features beautiful weather with fewer tourists and autumn foliage. Winter (December-February) is mild by Canadian standards with occasional rain, rarely heavy snow in the city, though nearby mountains receive snow perfect for skiing.
Shoulder seasons (April-May and September-October) offer the best combination of pleasant weather, fewer crowds, and value on accommodations.