Barcelona · July · warmth

Warmest places to go from Barcelona in July

The warmest place you can reach from Barcelona in July within 15 hours is Zagora at 36.6 °C, costing 358 kg CO₂e return. The lowest-carbon option is Tortosa at 4.5 kg — 80× less carbon for 9.8 °C less.

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

Where they are. Solid lines are rail or ferry, dashed are flights, from Barcelona. Pick one to compare.

By rail or ferry By air

Carbon against warmth, July, departing Barcelona. Journeys of up to 15 hours each way.

July from Barcelona — 9 destinations on the frontier, 4 without flying.
Destination	How	CO₂e return	Temp	Sun/day	Rain/day	Journey
Tortosa, Spain	Rail	4.5 kg	26.8 °C	12.9 h	0.7 mm	4h 6m
Alzira, Spain	Rail	9.8 kg	28.4 °C	13.3 h	0.4 mm	6h 30m
Murcia, Spain	Rail	13.9 kg	28.8 °C	13.6 h	0.0 mm	8h 30m
Andujar, Spain	Rail	19.1 kg	30.9 °C	13.6 h	0.0 mm	10h 54m
Jendouba, Tunisia	Air	199 kg	32.2 °C	12.8 h	0.0 mm	4h 36m
Ar Rudayyif, Tunisia	Air	236 kg	33.3 °C	12.9 h	0.0 mm	4h 48m
Metlaoui, Tunisia	Air	241 kg	34.3 °C	12.9 h	0.0 mm	4h 48m
Tozeur, Tunisia	Air	247 kg	35.6 °C	13.0 h	0.0 mm	4h 48m
Zagora, Morocco	Air	358 kg	36.6 °C	12.1 h	0.0 mm	5h 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 Andujar (19.1 kg, 30.9 °C) to Jendouba (199 kg, 32.2 °C) buys 1.3 °C more warmth for an extra 179 kg — 138 kg of CO₂e per degree. That single step is the most expensive warmth on the whole curve.

The pick of them

TortosaSpain4.5 kg CO₂e return26.8 °C · 12.9 h sun · 4h 6m by railwarm, bright and dry AndujarSpain19.1 kg CO₂e return30.9 °C · 13.6 h sun · 10h 54m by railwarm, bright and dry ZagoraMorocco358 kg CO₂e return36.6 °C · 12.1 h sun · 5h 24m by airwarm, bright and dry

If you'd rather have sunshine than heat

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

Where to stay in Zagora

Places to stay in Zagora, Morocco, 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

July from elsewhere

Questions

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

Zagora, Morocco, at 36.6 °C. Reaching it emits 358 kg CO₂e return, travelling 5h 24m each way by air.

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

Yes. Andujar reaches 30.9 °C and is reachable by rail or ferry in 10h 54m, emitting 19.1 kg CO₂e return — though Zagora is warmer still, if you fly.

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

358 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.