Denmark Weather by Month
Denmark has a mild, maritime climate – rarely very hot, rarely very cold, and famously changeable. This guide to Denmark weather by month gives you the average temperatures, the daylight swing from short winter days to long summer evenings, and what to pack, so you can pick the right time to go. The figures below are typical averages for Copenhagen; pack for variety whatever the month.
The short answer
Denmark is mild and damp rather than extreme. Summers are pleasant (typically high teens to low twenties), winters are cold but not bitter (around freezing to a few degrees above), and rain can fall in any month, with autumn the wettest. The biggest change through the year is light: from roughly seven hours of daylight in midwinter to around seventeen in midsummer. For most visitors, May to September is the sweet spot.
Mild maritime climate: ~20C summers, ~2-4C winters, rain year-round, huge daylight swing. Best weather May-September; December is cold but magical for Christmas.
Denmark weather by month, at a glance
Here is the Denmark weather by month – typical average daytime highs and the general feel, based on Copenhagen:
| Month | Avg high | What it’s like |
|---|---|---|
| January | ~2-4C | Cold, grey, short days (~7h light). Quiet, cheap. |
| February | ~2-4C | Still cold and dark; occasional crisp, bright spells. |
| March | ~5-7C | Early spring, days lengthening fast, changeable. |
| April | ~10-12C | Spring proper, blossom, sun and showers. |
| May | ~16C | Fresh, green, long days – one of the loveliest months. |
| June | ~19-20C | Warm, very long days (~17h light around solstice). |
| July | ~21-22C | Warmest month, peak summer, busiest and dearest. |
| August | ~21C | Warm summer, lively, with some rain. |
| September | ~17-18C | Mild, golden, thinning crowds – a great time. |
| October | ~12C | Autumn, wetter, falling leaves, cosier. |
| November | ~7C | Grey, wet and dark; shoulder into winter. |
| December | ~3-4C | Cold, very short days (~7h light), festive lights. |
Averages only – Danish weather is changeable, so expect warmer and cooler days, and pack a rain layer year-round.
The seasons at a glance
- Spring (Mar-May): warming and brightening, blossom, fewer tourists – lovely by May.
- Summer (Jun-Aug): the warmest, liveliest, longest-day season; busiest and priciest.
- Autumn (Sep-Nov): mild and golden early on, then wet and grey – the rainiest stretch.
- Winter (Dec-Feb): cold, dark and quiet, but festive in December with markets and lights.
When’s best to visit
May to September gives you the best weather, longest days and the outdoor, harbourside side of Denmark – with July and August the warmest but most crowded, and May, June and September a sweet balance of pleasant weather and thinner crowds. Come in December for Christmas markets and hygge, if you do not mind the cold and the dark.
What to pack
- Always: a waterproof jacket and layers – the weather turns quickly in any season.
- Summer: light layers, but bring a jumper for cool evenings and a rain layer.
- Spring/autumn: warm layers, a proper coat and waterproof shoes.
- Winter: a warm coat, hat, gloves and sturdy footwear; it is cold and damp.
- Year-round: comfortable shoes – this is a walking and cycling country.
Questions and answers
What is the weather like in Denmark?
Mild and maritime – pleasant summers around 20C, cold winters around freezing to a few degrees above, rain possible year-round, and a big daylight swing between seasons.
What is the warmest month in Denmark?
July, with average highs around 21-22C, closely followed by August.
When is the best time to visit Denmark?
May to September for the best weather and long days; July and August are warmest but busiest, while May, June and September balance weather and crowds.
Does it rain a lot in Denmark?
Rain can fall in any month and autumn is the wettest, so a waterproof layer is wise year-round – but downpours are usually short rather than tropical.
How long are the days in Denmark?
From roughly 7 hours of daylight in midwinter to around 17 hours near the midsummer solstice.