What to pack for Copenhagen in September
- long sleeves and a warm layer
- a medium jacket
- a compact umbrella or rain shell — rain is frequent
Humidity averages 78%; max daily wind around 24 km/h.
How September compares
Best months in Copenhagen: June & August–September. See the full best time to visit Copenhagen guide.
Copenhagen in September: the details
In September, Copenhagen sees average daytime highs of 18°C (64°F) and overnight lows of 13°C (55°F). Rainfall totals roughly 61 mm across 10.8 rainy days, and the sun shines about 9 hours per day with 12.4 hours of daylight mid-month. Relative humidity averages 78%.
In context: September is the 4th-warmest month and the 7th-wettest in Copenhagen. The sunniest month is June (13.2 h/day).
| Metric | September average |
|---|---|
| Daytime high | 18°C / 64°F |
| Overnight low | 13°C / 55°F |
| Rainfall | 61 mm over 10.8 rainy days |
| Sunshine | 9 h/day (12.4 h daylight) |
| Humidity | 78% |
| Travel score | 8.9 / 10 |
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Copenhagen, Denmark (55.68, 12.57) — see our methodology. Actual conditions vary year to year.
Not set on Copenhagen? Browse the best places to visit in September ranked by travel score.
Frequently asked questions
How hot is Copenhagen in September?
Daytime highs in Copenhagen in September average 18°C (64°F); nights drop to about 13°C.
Does it rain in Copenhagen in September?
Expect around 10.8 rainy days and 61 mm of rainfall in September.
Is September a good time to visit Copenhagen?
September is one of the best months to visit Copenhagen. Overall travel score: 8.9/10. The best months are June & August–September.
Also good in September, near Copenhagen
Where should you go next month?
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