Warmest places to go from London in October
The warmest place you can reach from London in October within 15 hours is Sharm el-Sheikh at 29.0 °C, costing 909 kg CO₂e return. The lowest-carbon option is Calais at 4.5 kg — 202× less carbon for 15.4 °C less.
Every destination here is on the efficiency frontier: nowhere else in Europe is both warmer in October 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 Tortosa can only be reached by air — 299 kg CO₂e, in 5h 6m. Allow up to 24 hours and the train does the same journey for 35.1 kg in 18h 18m — 9× less carbon for 13h 12m more travelling.
| Destination | How | CO₂e return | Temp | Sun/day | Rain/day | Journey |
|---|---|---|---|---|---|---|
| Calais, France | Rail | 4.5 kg | 13.6 °C | 6.2 h | 3.7 mm | 4h 6m |
| St-Malo, France | Rail | 10.2 kg | 15.0 °C | 7.1 h | 3.0 mm | 6h 42m |
| La Rochelle, France | Rail | 17.7 kg | 16.0 °C | 7.2 h | 7.3 mm | 10h 12m |
| La Teste-de-Buch, France | Rail | 22.7 kg | 16.9 °C | 7.5 h | 5.8 mm | 12h 30m |
| Donostia / San Sebastian, Spain | Rail | 27.2 kg | 18.1 °C | 7.4 h | 5.8 mm | 14h 36m |
| Perpignan, France | Air | 253 kg | 18.7 °C | 7.9 h | 1.2 mm | 4h 48m |
| Tortosa, Spain | Air | 299 kg | 19.6 °C | 8.0 h | 5.4 mm | 5h 6m |
| Castellon, Spain | Air | 322 kg | 20.2 °C | 8.8 h | 2.3 mm | 5h 12m |
| Ibiza Town, Spain | Air | 354 kg | 22.0 °C | 9.8 h | 0.7 mm | 5h 24m |
| Kairouan, Tunisia | Air | 488 kg | 23.7 °C | 9.2 h | 0.9 mm | 6h 6m |
| Sfax, Tunisia | Air | 518 kg | 24.1 °C | 9.5 h | 1.5 mm | 6h 12m |
| Tozeur, Tunisia | Air | 520 kg | 25.4 °C | 10.0 h | 0.3 mm | 6h 18m |
| Eilat, Israel | Air | 885 kg | 26.6 °C | 10.6 h | 0.0 mm | 8h 30m |
| Sohag, Egypt | Air | 901 kg | 27.0 °C | 10.9 h | 0.0 mm | 8h 36m |
| Sharm el-Sheikh, Egypt | Air | 909 kg | 29.0 °C | 10.9 h | 0.0 mm | 8h 42m |
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 Donostia / San Sebastian (27.2 kg, 18.1 °C) to Perpignan (253 kg, 18.7 °C) buys 0.6 °C more warmth for an extra 226 kg — 376 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
October answers differently depending on what you're after. The sunniest destinations from London in October 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 London
October 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 London in October?
Sharm el-Sheikh, Egypt, at 29.0 °C. Reaching it emits 909 kg CO₂e return, travelling 8h 42m each way by air.
Can I get somewhere warm from London in October without flying?
Yes. Donostia / San Sebastian reaches 18.1 °C and is reachable by rail or ferry in 14h 36m, emitting 27.2 kg CO₂e return — though Sharm el-Sheikh is warmer still, if you fly.
How much carbon does a return trip from London to Sharm el-Sheikh produce?
909 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.