The ideal time to visit Copenhagen is between April and June. January and February are the coldest months with temperatures falling below freezing. Summers are cool and windy with temperatures averaging 70 ˚to 55 ˚ Fahrenheit; making it the ideal weather for travelers who wish to enjoy a relaxing cruise.
Copenhagen is the hub of all festivities. If you are fond of arts and entertainment, February and August are the most happening months.
Economically speaking, prices are most reasonable in the non-peak months when there are no festivals or events, but the events alone can sometimes make your trip worthwhile.