Sunniest places to go from London in March
The sunniest place you can reach from London in March within 15 hours is Arona at 11.5 h, costing 741 kg CO₂e return. The lowest-carbon option is Calais at 4.5 kg — 165× less carbon for 5.7 h less.
Every destination here is on the efficiency frontier: nowhere else in Europe is both sunnier 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 Lleida can only be reached by air — 277 kg CO₂e, in 5h. Allow up to 24 hours and the train does the same journey for 32.5 kg in 17h 6m — 9× less carbon for 12h 6m 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 |
| Dieppe, France | Rail | 5.8 kg | 8.8 °C | 6.3 h | 3.2 mm | 4h 42m |
| Caen, France | Rail | 7.6 kg | 8.9 °C | 6.9 h | 2.5 mm | 5h 30m |
| Vannes, France | Rail | 13.8 kg | 9.5 °C | 7.4 h | 4.7 mm | 8h 24m |
| Clermont-Ferrand, France | Rail | 20.1 kg | 8.5 °C | 8.1 h | 2.9 mm | 11h 18m |
| Saint-Etienne, France | Rail | 22.2 kg | 8.1 °C | 8.6 h | 4.3 mm | 12h 18m |
| Montpellier, France | Rail | 27.4 kg | 11.6 °C | 9.2 h | 2.7 mm | 14h 42m |
| Marseille, France | Air | 252 kg | 11.6 °C | 9.6 h | 2.6 mm | 4h 48m |
| Lleida, Spain | Air | 277 kg | 12.9 °C | 10.4 h | 0.8 mm | 5h |
| Palma, Spain | Air | 338 kg | 14.4 °C | 10.7 h | 1.4 mm | 5h 18m |
| Arona, Spain | Air | 741 kg | 16.1 °C | 11.5 h | 1.2 mm | 7h 24m |
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 Montpellier (27.4 kg, 9.2 h) to Marseille (252 kg, 9.6 h) buys 0.4 hours more sunshine for an extra 225 kg — 561 kg of CO₂e per hour. That single step is the most expensive sunshine on the whole curve.
The pick of them
If you'd rather have heat than sunshine
March answers differently depending on what you're after. The warmest destinations from London in March are a different list — hours of sunshine and degrees of warmth come apart, especially early and late in the year.
Where to stay in Arona
Places to stay in Arona, 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 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 sunniest place to go from London in March?
Arona, Spain, at 11.5 h. Reaching it emits 741 kg CO₂e return, travelling 7h 24m each way by air.
Can I get somewhere sunny from London in March without flying?
Yes. Montpellier reaches 9.2 h and is reachable by rail or ferry in 14h 42m, emitting 27.4 kg CO₂e return — though Arona is sunnier still, if you fly.
How much carbon does a return trip from London to Arona produce?
741 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.