Sunniest places to go from Copenhagen in September
The sunniest place you can reach from Copenhagen in September within 15 hours is Fethiye at 11.8 h, costing 618 kg CO₂e return. The lowest-carbon option is Stralsund at 4.6 kg — 134× less carbon for 2.0 h less.
Every destination here is on the efficiency frontier: nowhere else in Europe is both sunnier in September and lower in carbon. Anything a better option beats outright has been left out.
By rail or ferry By air
What the 15-hour limit costs: at this budget Rome can only be reached by air — 386 kg CO₂e, in 5h 30m. Allow up to 24 hours and the train does the same journey for 45.2 kg in 23h — 9× less carbon for 17h 30m more travelling.
| Destination | How | CO₂e return | Temp | Sun/day | Rain/day | Journey |
|---|---|---|---|---|---|---|
| Stralsund, Germany | Rail | 4.6 kg | 17.2 °C | 9.8 h | 2.0 mm | 4h 6m |
| Giżycko, Poland | Rail | 18.2 kg | 17.8 °C | 10.4 h | 1.1 mm | 10h 24m |
| Rome, Italy | Air | 386 kg | 22.3 °C | 10.8 h | 2.6 mm | 5h 30m |
| Akhisar, Turkey | Air | 548 kg | 24.0 °C | 11.6 h | 0.4 mm | 6h 24m |
| Fethiye, Turkey | Air | 618 kg | 26.0 °C | 11.8 h | 1.6 mm | 6h 48m |
Warm is not the same as pleasant, which is why sunshine and rainfall are shown alongside temperature. All three are ERA5 monthly means for 2023–2024.
Where the curve breaks
The frontier is gentle until it isn't. Going from Giżycko (18.2 kg, 10.4 h) to Rome (386 kg, 10.8 h) buys 0.4 hours more sunshine for an extra 367 kg — 918 kg of CO₂e per hour. That single step is the most expensive sunshine on the whole curve.
The pick of them
If you'd rather have heat than sunshine
September answers differently depending on what you're after. The warmest destinations from Copenhagen in September are a different list — hours of sunshine and degrees of warmth come apart, especially early and late in the year.
Where to stay in Fethiye
Places to stay in Fethiye, Turkey, on a live map. Prices and availability come from Stay22 and its booking partners.
Affiliate disclosure. A booking made through this map may earn 0xCarbon a commission, at no extra cost to you. It changes nothing above it: the emissions figures come from UK Government conversion factors and are computed before anyone is paid anything.See the method.
Other months from Copenhagen
September from elsewhere
- Amsterdam
- Barcelona
- Berlin
- Birmingham
- Bristol
- Brussels
- Cardiff
- Copenhagen
- Dublin
- Edinburgh
- Frankfurt
- Glasgow
- Leeds
- Lisbon
- Liverpool
- London
- Madrid
- Manchester
- Milan
- Munich
- Newcastle
- Nottingham
- Oslo
- Paris
- Prague
- Rome
- Sheffield
- Southampton
- Stockholm
- Vienna
- Warsaw
- Zurich
Questions
Where is the sunniest place to go from Copenhagen in September?
Fethiye, Turkey, at 11.8 h. Reaching it emits 618 kg CO₂e return, travelling 6h 48m each way by air.
Can I get somewhere sunny from Copenhagen in September without flying?
Yes. Giżycko reaches 10.4 h and is reachable by rail or ferry in 10h 24m, emitting 18.2 kg CO₂e return — though Fethiye is sunnier still, if you fly.
How much carbon does a return trip from Copenhagen to Fethiye produce?
618 kg CO₂e for one person, return, by air. That uses the UK Government's 2026 conversion factors, including radiative forcing for flights.
Carbon uses UK Government (DESNZ/DEFRA) 2026 conversion factors applied to great-circle distance, with radiative forcing included for flights. Rail journey times are modelled estimates, not timetabled services. Full method · download the data.