Direct answer
The best time to visit Europe depends on your priorities: late spring (May–June) and early autumn (September–October) offer the best balance of pleasant weather, fewer crowds, and reasonable prices. For beach holidays, July–August; for winter sports and holiday markets, December–March.
Why May–June and September–October are ideal
When to choose other seasons
Regional considerations
Practical tips
Bottom line
For most travelers seeking pleasant weather, manageable crowds, and value, plan Europe trips for May–June or September–October. Choose summer for beaches and nightlife, winter for skiing and holiday markets.