Warmest places to go from London in March
The warmest place you can reach from London in March within 15 hours is Kom Ombo at 23.6 °C, costing 962 kg CO₂e return. The lowest-carbon option is Calais at 4.5 kg — 214× less carbon for 15.3 °C less.
Every destination here is on the efficiency frontier: nowhere else in Europe is both warmer in March 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 Castellon can only be reached by air — 322 kg CO₂e, in 5h 12m. Allow up to 24 hours and the train does the same journey for 37.8 kg in 19h 30m — 9× less carbon for 14h 18m more travelling.
| Destination | How | CO₂e return | Temp | Sun/day | Rain/day | Journey |
|---|---|---|---|---|---|---|
| Calais, France | Rail | 4.5 kg | 8.3 °C | 5.8 h | 3.6 mm | 4h 6m |
| St-Malo, France | Rail | 10.2 kg | 9.5 °C | 6.9 h | 2.9 mm | 6h 42m |
| Rochefort, France | Rail | 18.4 kg | 10.3 °C | 7.3 h | 4.3 mm | 10h 30m |
| Mont-de-Marsan, France | Rail | 25.0 kg | 11.3 °C | 7.7 h | 3.9 mm | 13h 36m |
| Donostia / San Sebastian, Spain | Rail | 27.2 kg | 12.6 °C | 8.0 h | 4.1 mm | 14h 36m |
| Zaragoza, Spain | Air | 276 kg | 13.5 °C | 9.5 h | 1.2 mm | 5h |
| Castellon, Spain | Air | 322 kg | 14.4 °C | 10.1 h | 0.5 mm | 5h 12m |
| Alzira, Spain | Air | 346 kg | 15.9 °C | 10.1 h | 0.5 mm | 5h 18m |
| Almería, Spain | Air | 413 kg | 16.7 °C | 10.2 h | 1.3 mm | 5h 42m |
| Metlaoui, Tunisia | Air | 511 kg | 17.5 °C | 10.8 h | 0.2 mm | 6h 12m |
| Tozeur, Tunisia | Air | 520 kg | 18.9 °C | 10.7 h | 0.0 mm | 6h 18m |
| Moulay Ali Cherif, Morocco | Air | 572 kg | 19.7 °C | 10.7 h | 0.0 mm | 6h 30m |
| Taroudant, Morocco | Air | 616 kg | 20.9 °C | 10.5 h | 0.6 mm | 6h 48m |
| Akhmim, Egypt | Air | 902 kg | 21.7 °C | 11.4 h | 0.0 mm | 8h 36m |
| Luxor, Egypt | Air | 932 kg | 22.7 °C | 11.4 h | 0.0 mm | 8h 48m |
| Kom Ombo, Egypt | Air | 962 kg | 23.6 °C | 11.3 h | 0.0 mm | 9h |
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 Taroudant (616 kg, 20.9 °C) to Akhmim (902 kg, 21.7 °C) buys 0.8 °C more warmth for an extra 286 kg — 357 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
March answers differently depending on what you're after. The sunniest destinations from London in March are a different list — the brightest places are not always the hottest, and in winter the difference is large.
Where to stay in Kom Ombo
Places to stay in Kom Ombo, 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
March 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 March?
Kom Ombo, Egypt, at 23.6 °C. Reaching it emits 962 kg CO₂e return, travelling 9h each way by air.
Can I get somewhere warm from London in March without flying?
Yes. Donostia / San Sebastian reaches 12.6 °C and is reachable by rail or ferry in 14h 36m, emitting 27.2 kg CO₂e return — though Kom Ombo is warmer still, if you fly.
How much carbon does a return trip from London to Kom Ombo produce?
962 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.