Barcelona · August · warmth

Warmest places to go from Barcelona in August

In August, the warmest well-known place within 15 hours of Barcelona is Aswan, Egypt, averaging 36.4 °C across day and night and 12.0 h sun a day, about 8h 6m each way by air. Without flying, it is Seville, Spain, averaging 30.1 °C across day and night, about 7h 30m each way by train, for about 35× less carbon (24.4 kg CO₂e return against 863 kg).

Every city at once, with and without flying: where is hot in August.

The 10 warmest places within 15 hours of Barcelona

Ranked on warmth in August alone, among well-known places (a Wikivoyage travel guide and at least 40,000 Wikipedia readers a year), one per area and at most three per country. The carbon is shown, not used to choose: the list further down is the other question, how much warmth each extra kilogram buys.

Aswan, Egypt36.4 °C · 12.0 h sun a day · mostly dryair ≈ 8h 6m · 863 kg CO₂e return
Luxor, Egypt36.3 °C · 12.0 h sun a day · mostly dryair ≈ 7h 54m · 829 kg CO₂e return
Sharm el-Sheikh, Egypt36.0 °C · 12.3 h sun a day · mostly dry · sea 30.1 °Cair ≈ 7h 54m · 824 kg CO₂e return
Aqaba, Jordan34.0 °C · 12.5 h sun a day · mostly dry · sea 29.0 °Cair ≈ 7h 48m · 812 kg CO₂e return
Sanliurfa, Turkey33.3 °C · 12.9 h sun a day · mostly dryair ≈ 7h 42m · 796 kg CO₂e return
Batman, Turkey32.7 °C · 12.8 h sun a day · mostly dryair ≈ 7h 54m · 838 kg CO₂e return
Diyarbakir, Turkey32.3 °C · 12.9 h sun a day · mostly dryair ≈ 7h 48m · 819 kg CO₂e return
Marrakesh, Morocco31.1 °C · 12.2 h sun a day · mostly dryair ≈ 5h 24m · 355 kg CO₂e return
Ouarzazate, Morocco31.0 °C · 11.8 h sun a day · mostly dryair ≈ 5h 24m · 357 kg CO₂e return
Kairouan, Tunisia30.5 °C · 12.6 h sun a day · mostly dryair ≈ 4h 42m · 236 kg CO₂e return

Without flying

The warmest places the train reaches within 15 hours. Seville is 30.1 °C for 24.4 kg — about 35× less carbon than flying to Aswan.

Seville, Spain30.1 °C · 12.7 h sun a day · mostly dryrail ≈ 7h 30m · 24.4 kg CO₂e return
Almería, Spain28.9 °C · 12.4 h sun a day · mostly dry · sea 26.8 °Crail ≈ 10h 6m · 19.0 kg CO₂e return
Granada, Spain28.7 °C · 12.8 h sun a day · mostly dryrail ≈ 8h 18m · 20.1 kg CO₂e return
Madrid, Spain28.2 °C · 12.7 h sun a day · mostly dryrail ≈ 4h · 14.9 kg CO₂e return
Terni, Italy27.2 °C · 12.5 h sun a day · 1.7 mm rain a dayrail ≈ 14h 42m · 25.8 kg CO₂e return
Rome, Italy27.1 °C · 12.8 h sun a day · 1.7 mm rain a dayrail ≈ 14h 30m · 25.4 kg CO₂e return

≈ is the model's estimate (air times include getting to and through the airport); ✓ is a rail journey checked against a real timetable, with the date it was checked. Temperatures are historical daily means for 2023–2024, averaged across day and night, so afternoons run warmer.

The low-carbon trade-off

The warmest place you can reach from Barcelona in August within 15 hours is Kom Ombo, 36.8 °C, costing 857 kg CO₂e return. The lowest-carbon option is Tortosa at 4.5 kg — 190× less carbon, for 9.4 degrees less warmth.

Every destination here is on the efficiency frontier: nowhere else this site covers is both warmer in August 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, August, departing Barcelona. Journeys of up to 15 hours each way.

August from Barcelona — 8 destinations on the frontier, 4 without flying.
Destination	How	CO₂e return	Temp	Sun/day	Rain/day	Journey
Tortosa, Spain	Rail	4.5 kg	27.4 °C	12.6 h	0.4 mm	3h 42m
Alzira, Spain	Rail	9.8 kg	28.4 °C	12.3 h	0.2 mm	5h 36m
Andujar, Spain	Rail	19.1 kg	31.1 °C	12.7 h	0.1 mm	8h 24m
Palma del Rio, Spain	Rail	22.4 kg	31.5 °C	12.8 h	0.0 mm	8h 6m
Nefta, Tunisia	Air	245 kg	33.3 °C	12.3 h	0.0 mm	4h 48m
Recani, Morocco	Air	317 kg	34.9 °C	12.0 h	0.1 mm	5h 12m
Zagora, Morocco	Air	358 kg	35.9 °C	12.1 h	0.0 mm	5h 24m
Kom Ombo, Egypt	Air	857 kg	36.8 °C	11.9 h	0.0 mm	8h

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, 35.9 °C) to Kom Ombo (857 kg, 36.8 °C) buys 0.9 °C more warmth for an extra 499 kg — 554 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 return27.4 °C · 12.6 h sun · 3h 42m by railwarm, bright and dry Palma del RioSpain22.4 kg CO₂e return31.5 °C · 12.8 h sun · 8h 6m by railwarm, bright and dry

Kom OmboEgypt857 kg CO₂e return36.8 °C · 11.9 h sun · 8h by airwarm, bright and dry

The same month, asked differently

August answers differently depending on what you are after, and the lists genuinely diverge: the brightest places are not the hottest, and in summer the useful question stops being where is warm at all.

Where to stay in Kom Ombo

Places to stay in Kom Ombo, Egypt, on a live map. Prices and availability come from Stay22 and its booking partners.

Search places to stay in Kom Ombo →Opens the booking search in a new tab. Same partners as the map below.

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

August from elsewhere

Photo credits

Kom Ombo: Jerzy Strzelecki, CC BY-SA 3.0, via Wikimedia Commons
Aswan: Vyacheslav Argenberg, CC BY 4.0, via Wikimedia Commons
Luxor: Roland Unger, CC BY-SA 3.0, via Wikimedia Commons
Sharm el-Sheikh: Tanya Dedyukhina, CC BY 3.0, via Wikimedia Commons
Aqaba: Sana Janakat, CC BY-SA 4.0, via Wikimedia Commons
Sanliurfa: Damien Halleux Radermecker, CC BY-SA 2.0, via Wikimedia Commons
Batman: Ferhat 72 at Turkish Wikipedia, Public domain, via Wikimedia Commons
Marrakesh: Donar Reiskoffer, CC BY 3.0, via Wikimedia Commons
Ouarzazate: Bjørn Christian Tørrissen, CC BY-SA 3.0, via Wikimedia Commons
Kairouan: Unknown authorUnknown author, Public domain, via Wikimedia Commons
Seville: Diliff, CC BY-SA 3.0, via Wikimedia Commons
Almería: Javier rodriguez jimenez, CC BY-SA 4.0, via Wikimedia Commons
Rome: Bert Kaufmann from Roermond, Netherlands, CC BY-SA 2.0, via Wikimedia Commons

Questions

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

Kom Ombo, Egypt, at 36.8 °C. Reaching it emits 857 kg CO₂e return, travelling 8h each way by air (modelled).

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

Yes. Palma del Rio reaches 31.5 °C and is reachable by rail or ferry in 8h 6m (modelled), emitting 22.4 kg CO₂e return — though Kom Ombo is warmer still, if you fly.

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

857 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.