Copenhagen in January: 4°C / 39°F afternoons, −1°C / 30°F nights, frost on about 18 nights, and about 7h 40m of daylight by mid-month.
Pack for the first real frost of the winter. NOAA's daily record for Kastrup, a station the Danish Meteorological Institute operates, puts January at 3.6°C by day and −1.1°C / 30°F at night, with frost on about 18 nights and some precipitation on about 14 days. December averaged just above freezing; January does not. Copenhagen Municipality says it treats the cycle tracks and the main roads first, salting about 600 km of cycle track, while pavements are treated once ice is confirmed and the stretch outside each building falls to the owner. So the bike lane is gritted and the walk is not. Trade December's bare wind shell for down, keep a thin striped layer under a knit for the hot cafés, wear straight jeans for the chain, and put the grip on your feet.
Copenhagen grits the cycle track before it grits your pavement. In January, the ride is the safe part and the walk to the bike is where you need the boots.

Insulation now, not only wind-proofing. December's page answered wind at an above-freezing night; January's nights average −1.1°C / 30°F, and a shell over a knit runs out of warmth by the second week. A hip-length down jacket clears the saddle, the stand collar zips to the chin on the ride, and a hood rolls out of it for wet snow. Stone grey keeps to Copenhagen's quiet palette without adding another black.

A thin striped layer sits under a knit without bulk and shows at the cuff when the jacket comes off. It is also a local reference: Jørgen Nørgaard launched his ribbed, long-sleeved #101 at Nørgaard paa Strøget in 1967, and Design Museum Denmark keeps it in its permanent exhibition. Wear it alone in a café that runs hot.

This is the warm layer, and it earns its place indoors as well as out. A cable crew traps air in its ridges under the down jacket at −1.1°C, then carries the outfit alone at a Nørrebro café table. Navy picks up the stripes of the tee and sits quietly against stone grey, which suits a city that dresses in a narrow range.

Straight, not wide: a loose hem catches the chain on the ride over Knippelsbro. Denim shrugs off salt spray and a damp saddle better than wool trousers, and black goes with the grey jacket, the navy knit and the grey mittens without a second thought.

Grip goes on your feet in January. Copenhagen Municipality treats pavements only once ice is confirmed, after the cycle tracks and main roads, and the stretch outside each building is the owner's job, so the surface changes from door to door. A rubber shell with a deep lug handles those untreated metres and the slush at crossings, and the cuff keeps frost-night air off your ankles.

About 7h 40m of daylight in mid-January means you ride home in the dark, and an ecru hat with a reflective tab on the cuff shows up on an unlit cycle track where a charcoal one disappears. The folded cuff doubles the merino over your ears, and a close rib sits under the jacket's hood without pushing it back.

Hands on a handlebar take the wind before anything else on a −1.1°C morning. Mittens keep your fingers together so they warm each other, felted wool blocks the wind a loose knit lets through, and a ribbed cuff tucks under the jacket's sleeve.

On a bike the bag has to stay put, and a tote swings into the handlebars on the first turn. A small camera crossbody with a buckled strap shortens to sit tight at your hip, the zip top stays shut through a wet-snow shower, and it holds a card, keys and a phone, which is all a day on the bike needs. Cognac leather is the one warm colour against stone, navy and black.
Striped tee · navy cable crew · stone-grey down jacket zipped · black straight jeans · snow boots · ecru beanie · grey mittens · cognac crossbody worn short. A ride along the salted cycle track to Designmuseum Danmark at ten, lunch in Torvehallerne, the harbour while the light lasts until about 4pm.
Same layers, crew off inside and back on at the door. A heated bar in Vesterbro after dark, then the ride home at −1°C / 30°F with the hat pulled down and the mittens on.
A suggested look — stone grey down jacket, navy cable-knit crew, white and navy striped tee, black straight jeans, black lace-up snow boots.
Cold, often frosty and dark by mid-afternoon. NOAA NCEI's daily record for Copenhagen-Kastrup, the station the Danish Meteorological Institute operates, averages thirty Januaries at a 3.6°C daily maximum and a −1.1°C / 30°F daily minimum, the first month of the winter whose average night falls below freezing. Frost comes on about 18 nights. Some precipitation falls on about 14 days, and only about 9 of them clear a millimetre. Daylight grows from 7h 10m on 1 January to 8h 35m on the 31st, and sunset moves from about 3:45pm to about 4:40pm.
A stone-grey down jacket, a white-and-navy striped long-sleeve tee, a navy cable-knit crew, black straight-leg jeans, black rubber-shelled snow boots, an ecru rib beanie, grey felted wool mittens and a cognac leather crossbody. That covers a −1°C / 30°F ride at 8am, a 4°C / 39°F afternoon on foot and a hot café in between. Leave the wide-leg trousers, the long loose scarf and the smooth-soled shoes at home, and add thick wool socks for the boots.
The cycle tracks are the safest surface in the city. Copenhagen Municipality says it treats the cycle tracks and the most important roads first and preventively, and that it salts about 600 km of cycle track and about 700 km of carriageway. Pavements and smaller roads are treated once ice is confirmed, after that first round, and property owners must grit and clear the pavement outside their buildings. So the metres between your door and the bike vary. Wear a boot with a rubber shell and a deep lug rather than a smooth leather sole, since frost comes on about 18 nights.
Late January, for light and for fashion week, unless Tivoli is the point. Christmas in Tivoli runs until 3 January, and the gardens' next season, Easter, opens on 19 March 2027, so the first weekend is your last Tivoli evening of the winter. By late January sunset has moved from about 3:45pm to about 4:40pm, and daylight has grown by nearly an hour and a half since the 1st. Copenhagen Fashion Week's Autumn/Winter 2027 shows run from 1 to 5 February, so a trip in the last days of January can run straight into them.
January is the month the nights cross zero. NOAA's Kastrup record puts December nights at 0.3°C, just above freezing, and January's at −1.1°C / 30°F, with frost on about 18 nights against about 13 in December. Days are about a degree colder too. December's problem was wind and rain at an above-freezing temperature, so that guide argues for a wind shell and against an ice-lug sole. In January the down jacket, the mittens and a boot with real grip take over, and Tivoli, December's evening, closes after the 3rd.
A dark down jacket or wool coat over a knit, straight jeans, a boot that grips and a hat, usually on a bike, and often a striped long-sleeve tee from a local shop. Jørgen Nørgaard opened Nørgaard paa Strøget in 1958 and launched the #101 there in 1967, a ribbed long-sleeved T-shirt named after Highway 101 and Levi's 501; more than 3 million have been sold, and it is part of the permanent exhibition at Design Museum Denmark. His son founded Mads Nørgaard – Copenhagen in 1986, and its shops sit on Amagertorv, on Strøget.