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Barcelona · May · warmth

Warmest places to go from Barcelona in May

The warmest place you can reach from Barcelona in May within 15 hours is Edfu at 31.4 °C, costing 846 kg CO₂e return. The lowest-carbon option is Tortosa at 4.5 kg — 188× less carbon for 12.0 °C less.

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

TortosaEdfu
Where they are. Solid lines are rail or ferry, dashed are flights, from Barcelona. Pick one to compare.
Carbon against warmth, May, departing Barcelona. Journeys of up to 15 hours each way.12 destinations. Lowest carbon Tortosa at 4.5 kilograms and 19.4 °C; best for warmth Edfu at 846 kilograms and 31.4 °C. Tortosa · 4.5 kgZagora · 358 kgAssiut · 774 kgEdfu · 846 kg

By rail or ferry By air

Carbon against warmth, May, departing Barcelona. Journeys of up to 15 hours each way.
May from Barcelona — 12 destinations on the frontier, 3 without flying.
DestinationHowCO₂e returnTempSun/dayRain/dayJourney
Tortosa, SpainRail4.5 kg19.4 °C12.7 h1.8 mm4h 6m
Alzira, SpainRail9.8 kg20.3 °C12.2 h1.3 mm6h 30m
Córdoba, SpainRail20.9 kg21.3 °C12.2 h1.0 mm11h 42m
Ar Rudayyif, TunisiaAir236 kg22.3 °C11.8 h1.3 mm4h 48m
Metlaoui, TunisiaAir241 kg23.8 °C11.8 h0.8 mm4h 48m
Tozeur, TunisiaAir247 kg25.8 °C11.6 h0.6 mm4h 48m
Moulay Ali Cherif, MoroccoAir317 kg26.6 °C12.1 h0.1 mm5h 12m
Zagora, MoroccoAir358 kg27.6 °C12.4 h0.0 mm5h 24m
Assiut, EgyptAir774 kg29.0 °C11.9 h0.0 mm7h 36m
Sohag, EgyptAir795 kg29.8 °C11.9 h0.0 mm7h 42m
Luxor, EgyptAir829 kg31.2 °C12.0 h0.0 mm7h 54m
Edfu, EgyptAir846 kg31.4 °C12.1 h0.0 mm8h

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 Zagora (358 kg, 27.6 °C) to Assiut (774 kg, 29.0 °C) buys 1.4 °C more warmth for an extra 416 kg — 297 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

May answers differently depending on what you're after. The sunniest destinations from Barcelona in May are a different list — the brightest places are not always the hottest, and in winter the difference is large.

Where to stay in Edfu

Places to stay in Edfu, 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 Barcelona

May from elsewhere

Questions

Where is the warmest place to go from Barcelona in May?

Edfu, Egypt, at 31.4 °C. Reaching it emits 846 kg CO₂e return, travelling 8h each way by air.

Can I get somewhere warm from Barcelona in May without flying?

Yes. Córdoba reaches 21.3 °C and is reachable by rail or ferry in 11h 42m, emitting 20.9 kg CO₂e return — though Edfu is warmer still, if you fly.

How much carbon does a return trip from Barcelona to Edfu produce?

846 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.