Sunniest places to go from Madrid in September
The sunniest place you can reach from Madrid in September within 15 hours is Arona at 11.7 h, costing 456 kg CO₂e return. The lowest-carbon option is Tomelloso at 4.5 kg — 101× less carbon for 0.6 h less.
Every destination here is on the efficiency frontier: nowhere else in Europe is both sunnier in September and lower in carbon. Anything a better option beats outright has been left out.
By rail or ferry By air
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 Tomelloso (4.5 kg, 11.1 h) to Arona (456 kg, 11.7 h) buys 0.6 hours more sunshine for an extra 451 kg — 752 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
September answers differently depending on what you're after. The warmest destinations from Madrid in September 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 Madrid
September 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 Madrid in September?
Arona, Spain, at 11.7 h. Reaching it emits 456 kg CO₂e return, travelling 5h 54m each way by air.
Can I get somewhere sunny from Madrid in September without flying?
Yes. Tomelloso reaches 11.1 h and is reachable by rail or ferry in 4h 6m, emitting 4.5 kg CO₂e return — though Arona is sunnier still, if you fly.
How much carbon does a return trip from Madrid to Arona produce?
456 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.