0xCarbon
Cardiff · January · warmth

Warmest places to go from Cardiff in January

The warmest place you can reach from Cardiff in January within 15 hours is Maspalomas at 19.6 °C, costing 713 kg CO₂e return. The lowest-carbon option is Reading at 12.3 kg — 58× less carbon for 14.7 °C less.

Every destination here is on the efficiency frontier: nowhere else in Europe is both warmer in January and lower in carbon. Anything a better option beats outright has been left out.

ReadingMaspalomas
Where they are. Solid lines are rail or ferry, dashed are flights, from Cardiff. Pick one to compare.
Carbon against warmth, January, departing Cardiff. Journeys of up to 15 hours each way.15 destinations. Lowest carbon Reading at 12.3 kilograms and 4.9 °C; best for warmth Maspalomas at 713 kilograms and 19.6 °C. Reading · 12.3 kgLa Rochelle · 34.7 kgLa Teste-de-Buch · 195 kgMaspalomas · 713 kg

By rail or ferry By air

Carbon against warmth, January, departing Cardiff. Journeys of up to 15 hours each way.

What the 15-hour limit costs: at this budget Gandia can only be reached by air — 355 kg CO₂e, in 5h 24m. Allow up to 24 hours and the train does the same journey for 58.1 kg in 24h — 6× less carbon for 18h 36m more travelling.

January from Cardiff — 15 destinations on the frontier, 4 without flying.
DestinationHowCO₂e returnTempSun/dayRain/dayJourney
Reading, United KingdomRail12.3 kg4.9 °C4.7 h2.2 mm4h 6m
Portsmouth, United KingdomRail13.2 kg5.7 °C4.8 h3.0 mm4h 12m
Falmouth, United KingdomRail16.0 kg7.0 °C3.9 h3.8 mm4h 42m
La Rochelle, FranceRail34.7 kg7.5 °C5.0 h3.4 mm13h 6m
La Teste-de-Buch, FranceAir195 kg8.4 °C5.4 h3.7 mm4h 30m
Santander, SpainAir224 kg9.8 °C5.5 h6.2 mm4h 42m
A Coruña, SpainAir247 kg10.7 °C5.6 h6.0 mm4h 48m
Santa Uxia de Ribeira, SpainAir273 kg11.5 °C5.5 h6.3 mm4h 54m
Gandia, SpainAir355 kg13.0 °C7.8 h1.0 mm5h 24m
Ibiza Town, SpainAir363 kg13.3 °C8.6 h0.6 mm5h 24m
Melilla, SpainAir453 kg14.6 °C8.6 h0.9 mm5h 54m
Essaouira, MoroccoAir575 kg16.0 °C9.5 h0.3 mm6h 30m
Taroudant, MoroccoAir599 kg17.7 °C9.5 h0.0 mm6h 42m
Las Palmas de Gran Canaria, SpainAir703 kg18.8 °C9.4 h1.8 mm7h 12m
Maspalomas, SpainAir713 kg19.6 °C9.6 h0.2 mm7h 18m

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 La Rochelle (34.7 kg, 7.5 °C) to La Teste-de-Buch (195 kg, 8.4 °C) buys 0.9 °C more warmth for an extra 161 kg — 178 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

January answers differently depending on what you're after. The sunniest destinations from Cardiff in January 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 Cardiff

January from elsewhere

Questions

Where is the warmest place to go from Cardiff in January?

Maspalomas, Spain, at 19.6 °C. Reaching it emits 713 kg CO₂e return, travelling 7h 18m each way by air.

Can I get somewhere warm from Cardiff in January without flying?

Yes. La Rochelle reaches 7.5 °C and is reachable by rail or ferry in 13h 6m, emitting 34.7 kg CO₂e return — though Maspalomas is warmer still, if you fly.

How much carbon does a return trip from Cardiff to Maspalomas produce?

713 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.