You may see in the forecast that the weather in Copenhagen for 14 days promises to be slightly cool and think you'll be comfortable. However, if you arrive in the city during the cold season, prepare for 0°C to feel like 10°C of frost due to high humidity and strong winds.
The weather forecast in Copenhagen doesn't usually show major annual temperature fluctuations. There are no very cold winters, with temperatures rarely dropping below -3°C, but summers are cool enough that temperatures above +20°C are rare. Even if you're traveling to the city in the warmer months, pack a windbreaker when you pack your vacation suitcase.
Also remember that it rains a lot. If you're visiting in the summer, the Copenhagen 3-day weather forecast may also suggest prolonged rainfall.
Storms are not uncommon in Denmark in winter, but they are almost non-existent in summer. However, check the weather in Copenhagen for 5 days before you travel to ensure your trip is free of unpleasant surprises.
Should I go to Copenhagen in winter?
If you tolerate this time of year well - yes, feel free to declare "I'm going to Copenhagen in winter!". You'll bring back tons of great experiences and photos, stroll through Christmas markets, sample glögg (Scandinavian mulled wine), and attend lavish church services. Plus, the winter season (excluding the holiday season) is when it's cheaper to travel to Copenhagen.
But keep in mind that with temperatures around freezing, constant winds are almost guaranteed, it gets dark early, and indoor areas (except stores and cafes) are chilly: Danes don't like heated houses.
So if you can't stand the cold, the Danish winter is not for you, and the answer to the question of when to go to Copenhagen is clear: in the second half of summer.
