Weather Comparison
Side-by-side weather comparison for September
| Metric | Copenhagen | Hamburg | Better |
|---|---|---|---|
| Average HighHigher is warmer | 17°C (63°F)▲ | 10°C (50°F) | Copenhagen |
| Average LowHigher is milder | 12°C (54°F)▲ | -2°C (28°F) | Copenhagen |
| Rain DaysFewer is drier | 11 days | 4 days▲ | Hamburg |
| PrecipitationLess is drier | 57 mm | 50 mm▲ | Hamburg |
| Sunshine HoursMore is sunnier | 8h/day▲ | 4h/day | Copenhagen |
| HumidityLower is more comfortable | 65% | 65% | Tie |
| UV IndexLower is safer | 6 | 6 | Tie |
| Wind SpeedCalmer is better | 23 km/h | 15 km/h▲ | Hamburg |
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Copenhagen edges ahead as the better destination in September. Copenhagen offers 8 hours of daily sunshine with only 11 rain days, while Hamburg sees 4 sunshine hours and 4 rain days.
Copenhagen sits in the comfortable travel range at 17°C. Hamburg is cooler at 10°C.
For travelers who prioritize dry weather, Hamburg is the stronger choice in September. Copenhagen receives 4 more hours of sunshine per day, which matters for sightseeing and outdoor activities.
Copenhagen reaches an average high of 17°C (63°F) and drops to 12°C (54°F) at night during September. The daily temperature range is 5°C, meaning relatively stable temperatures from day to night.
Hamburg averages 10°C (50°F) for the high and -2°C (28°F) for the low, with a daily range of 12°C. There is a notable 7°C gap between the two cities, so expect a very different feel.
Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in September.
Copenhagen receives approximately 57 mm of rainfall across 11 rain days during September. You can expect rain roughly every other day.
Hamburg sees 50 mm over 4 rain days. That makes Hamburg the drier option by 7 rain days and 7 mm of total precipitation.
Both cities share similar humidity levels at 65%.
Highs of 17°C, lows of 12°C, 11 rain days
Highs of 10°C, lows of -2°C, 4 rain days
Pack for both: warm layers, a mid-weight jacket, long trousers. These items are useful in either destination during September.
The table below shows average high temperatures and rain days for every month. September is highlighted for quick reference.
| Month | Copenhagen | Hamburg | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 3°C | 12d | -1°C | 3d |
| Feb | 3°C | 9d | 4°C | 3d |
| Mar | 6°C | 10d | 10°C | 4d |
| Apr | 11°C | 10d | 16°C | 5d |
| May | 15°C | 10d | 21°C | 6d |
| Jun | 18°C | 12d | 23°C | 6d |
| Jul | 21°C | 12d | 21°C | 6d |
| Aug | 21°C | 13d | 16°C | 5d |
| Sep | 17°C | 11d | 10°C | 4d |
| Oct | 12°C | 12d | 4°C | 3d |
| Nov | 7°C | 11d | -1°C | 3d |
| Dec | 4°C | 12d | -3°C | 3d |
Copenhagen Weather in September
Full forecast, packing tips, and activities
Hamburg Weather in September
Full forecast, packing tips, and activities