Warmest places to go from Barcelona in December
The warmest place you can reach from Barcelona in December within 15 hours is Maspalomas at 19.7 °C, costing 557 kg CO₂e return. The lowest-carbon option is Tortosa at 4.5 kg — 124× less carbon for 8.7 °C less.
Every destination here is on the efficiency frontier: nowhere else in Europe is both warmer in December and lower in carbon. Anything a better option beats outright has been left out.
By rail or ferry By air
| Destination | How | CO₂e return | Temp | Sun/day | Rain/day | Journey |
|---|---|---|---|---|---|---|
| Tortosa, Spain | Rail | 4.5 kg | 11.0 °C | 7.9 h | 0.4 mm | 4h 6m |
| Valencia, Spain | Rail | 8.9 kg | 12.1 °C | 7.9 h | 0.5 mm | 6h 6m |
| Gandia, Spain | Rail | 9.9 kg | 13.5 °C | 8.2 h | 0.4 mm | 6h 36m |
| Roquetas de Mar, Spain | Rail | 19.4 kg | 14.3 °C | 8.9 h | 0.4 mm | 11h |
| Melilla, Spain | Air | 204 kg | 15.2 °C | 8.9 h | 0.4 mm | 4h 36m |
| San Pawl il-Bahar, Malta | Air | 307 kg | 16.0 °C | 7.9 h | 1.3 mm | 5h 6m |
| Taroudant, Morocco | Air | 394 kg | 17.9 °C | 8.9 h | 0.3 mm | 5h 36m |
| Las Palmas de Gran Canaria, Spain | Air | 547 kg | 19.1 °C | 9.3 h | 2.8 mm | 6h 24m |
| Maspalomas, Spain | Air | 557 kg | 19.7 °C | 9.4 h | 0.5 mm | 6h 30m |
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 Roquetas de Mar (19.4 kg, 14.3 °C) to Melilla (204 kg, 15.2 °C) buys 0.9 °C more warmth for an extra 184 kg — 205 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
December answers differently depending on what you're after. The sunniest destinations from Barcelona in December are a different list — the brightest places are not always the hottest, and in winter the difference is large.
Where to stay in Maspalomas
Places to stay in Maspalomas, Spain, 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 Barcelona
December 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 Barcelona in December?
Maspalomas, Spain, at 19.7 °C. Reaching it emits 557 kg CO₂e return, travelling 6h 30m each way by air.
Can I get somewhere warm from Barcelona in December without flying?
Yes. Roquetas de Mar reaches 14.3 °C and is reachable by rail or ferry in 11h, emitting 19.4 kg CO₂e return — though Maspalomas is warmer still, if you fly.
How much carbon does a return trip from Barcelona to Maspalomas produce?
557 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.