Early autumn · Weather & things to do
Copenhagen in September
Copenhagen cools off: highs slip to 63°F (17°C), from 69°F in August, with lows of 53°F (12°C) and about 2.1 in (54 mm) of rain.
At 85/100 for comfort (3rd of 12), it's one of the best months to visit.
- Avg high
- 63°F (17°C)
- Avg low
- 53°F (12°C)
- Rain
- 2.1 in (54 mm)
- Humidity
- 83%
- Cloud cover
- 65%
- Daylight
- ~12 h 26 min
- Comfort score
- 85/100 · Great
What September feels like
Days are mild at around 63°F (17°C): comfortable for walking all day, with a layer for the evening.
Nights cool to an average low of 53°F (12°C).
About 2.1 in (54 mm) of rain falls in a typical year's September.
Plan around September
September is one of Copenhagen's best months on the climate data.
- Last of the best-scoring months: by October, the score drops to 65/100.
- Comfort holds steady from August (83 → 85/100).
- Our Scandinavian Capitals route recommends Jun – Aug, so September falls outside its suggested window.
- Our Copenhagen, Odense & Aarhus route is planned for Mid-Nov – Dec, a window set by the holiday season rather than the weather — September falls outside it.
What to pack for September
- A warm layer for eveningslows near 53°F
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Copenhagen in September
With conditions on your side, the picks below favor time outside.
Rosenborg Castle
Renaissance castle holding the crown jewels, set in the King's Garden.
Why now September scores 85/100 for comfort, good conditions for being outside.
Rundetaarn
17th-century observatory tower climbed by a spiral ramp, with rooftop views.
Why now Highs near 63°F and 2.1 in of monthly rain make this an easy outdoor pick.
Netto-Bådene canal tour
Budget hour-long harbor and canal cruise past the Little Mermaid and the Opera.
Royal Copenhagen Flagship Store
The porcelain maker's Renaissance house on Amagertorv, where set Christmas tables fill the upper floors each December.
Mikkeller Bar
Original Vesterbro bar of the Danish craft brewer, with 20 taps.
Tivoli Gardens
Amusement park and gardens from 1843, best when lit up at night.
Why now One to do outside while the weather is on your side.
Nearby in September
- Odense in September~87 mi · highs 63°F, 2.3 in rain · similar daytime temperatures, about as wet
- Aarhus in September~97 mi · highs 63°F, 2.7 in rain · similar daytime temperatures, wetter
- Berlin in September~221 mi · highs 69°F, 1.9 in rain · 3°C (6°F) warmer by day, about as wet
- Potsdam in September~228 mi · highs 69°F, 1.9 in rain · 3°C (6°F) warmer by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Copenhagen in September: quick answers
Is September a good time to visit Copenhagen?
Yes. On the climate data it's one of the best months, scoring 85/100. Expect highs of 63°F (17°C) and 2.1 in (54 mm) of rain. Our Scandinavian Capitals route recommends Jun – Aug, so September is outside its suggested window.
How cold is Copenhagen in September?
Average highs are 63°F (17°C) and average lows 53°F (12°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Copenhagen in September?
Not much: about 2.1 in (54 mm) of rain falls across September on average, the 5th-driest month of the year. The annual total is about 27.4 in (697 mm).
What should I pack for Copenhagen in September?
Bring a warm layer for evenings (lows near 53°F) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on Copenhagen
Planning Copenhagen in September?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.