Warmest places to go from Frankfurt in September
The warmest place you can reach from Frankfurt in September within 15 hours is Sharm el-Sheikh at 33.7 °C, costing 826 kg CO₂e return. The lowest-carbon option is Eisenach at 4.4 kg — 188× less carbon for 17.0 °C less.
Every destination here is on the efficiency frontier: nowhere else in Europe is both warmer 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 Foggia can only be reached by air — 276 kg CO₂e, in 5h. Allow up to 24 hours and the train does the same journey for 32.4 kg in 17h — 9× less carbon for 12h more travelling.
| Destination | How | CO₂e return | Temp | Sun/day | Rain/day | Journey |
|---|---|---|---|---|---|---|
| Eisenach, Germany | Rail | 4.4 kg | 16.7 °C | 10.1 h | 2.1 mm | 4h 6m |
| Cologne, Germany | Rail | 4.5 kg | 17.5 °C | 9.8 h | 3.0 mm | 4h 6m |
| Bolzano, Italy | Rail | 13.2 kg | 19.7 °C | 9.8 h | 6.5 mm | 8h 6m |
| Mantua, Italy | Rail | 16.9 kg | 20.8 °C | 10.2 h | 3.2 mm | 9h 48m |
| Chioggia, Italy | Rail | 17.9 kg | 21.8 °C | 10.1 h | 3.2 mm | 10h 18m |
| Civitavecchia, Italy | Rail | 27.3 kg | 22.4 °C | 10.6 h | 1.7 mm | 14h 36m |
| Foggia, Italy | Air | 276 kg | 23.2 °C | 10.3 h | 2.0 mm | 5h |
| Palermo, Italy | Air | 348 kg | 24.5 °C | 11.0 h | 2.1 mm | 5h 18m |
| Tunis, Tunisia | Air | 373 kg | 25.7 °C | 10.9 h | 0.9 mm | 5h 30m |
| Kairouan, Tunisia | Air | 405 kg | 27.0 °C | 10.7 h | 0.7 mm | 5h 36m |
| Metlaoui, Tunisia | Air | 442 kg | 27.7 °C | 10.5 h | 0.3 mm | 5h 48m |
| Tozeur, Tunisia | Air | 453 kg | 29.4 °C | 10.3 h | 0.3 mm | 5h 54m |
| Al Fayyum, Egypt | Air | 746 kg | 30.3 °C | 11.7 h | 0.0 mm | 7h 30m |
| Assiut, Egypt | Air | 801 kg | 31.6 °C | 11.7 h | 0.0 mm | 7h 42m |
| Sohag, Egypt | Air | 823 kg | 32.3 °C | 11.7 h | 0.0 mm | 7h 54m |
| Sharm el-Sheikh, Egypt | Air | 826 kg | 33.7 °C | 11.5 h | 0.0 mm | 7h 54m |
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 Tozeur (453 kg, 29.4 °C) to Al Fayyum (746 kg, 30.3 °C) buys 0.9 °C more warmth for an extra 293 kg — 326 kg of CO₂e per degree. That single step is the most expensive warmth on the whole curve.
The pick of them
If you'd rather have sunshine than heat
September answers differently depending on what you're after. The sunniest destinations from Frankfurt in September are a different list — the brightest places are not always the hottest, and in winter the difference is large.
Where to stay in Sharm el-Sheikh
Places to stay in Sharm el-Sheikh, Egypt, 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 Frankfurt
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 warmest place to go from Frankfurt in September?
Sharm el-Sheikh, Egypt, at 33.7 °C. Reaching it emits 826 kg CO₂e return, travelling 7h 54m each way by air.
Can I get somewhere warm from Frankfurt in September without flying?
Yes. Civitavecchia reaches 22.4 °C and is reachable by rail or ferry in 14h 36m, emitting 27.3 kg CO₂e return — though Sharm el-Sheikh is warmer still, if you fly.
How much carbon does a return trip from Frankfurt to Sharm el-Sheikh produce?
826 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.