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Brussels · May · warmth

Warmest places to go from Brussels in May

The warmest place you can reach from Brussels in May within 15 hours is Edfu at 31.4 °C, costing 882 kg CO₂e return. The lowest-carbon option is Nijmegen at 4.5 kg — 196× less carbon for 16.8 °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.

NijmegenEdfu
Where they are. Solid lines are rail or ferry, dashed are flights, from Brussels. Pick one to compare.
Carbon against warmth, May, departing Brussels. Journeys of up to 15 hours each way.16 destinations. Lowest carbon Nijmegen at 4.5 kilograms and 14.6 °C; best for warmth Edfu at 882 kilograms and 31.4 °C. Nijmegen · 4.5 kgZagora · 612 kgMallawi · 855 kgEdfu · 882 kg

By rail or ferry By air

Carbon against warmth, May, departing Brussels. Journeys of up to 15 hours each way.

What the 15-hour limit costs: at this budget Lleida can only be reached by air — 268 kg CO₂e, in 4h 54m. Allow up to 24 hours and the train does the same journey for 31.4 kg in 16h 36m — 9× less carbon for 11h 42m more travelling.

May from Brussels — 16 destinations on the frontier, 5 without flying.
DestinationHowCO₂e returnTempSun/dayRain/dayJourney
Nijmegen, The NetherlandsRail4.5 kg14.6 °C11.0 h3.5 mm4h 6m
Koblenz, GermanyRail6.9 kg14.9 °C10.8 h3.5 mm5h 12m
Bellinzona, SwitzerlandRail18.3 kg16.3 °C9.4 h8.3 mm10h 30m
Mantua, ItalyRail23.4 kg17.5 °C10.0 h6.9 mm12h 54m
Cannes, FranceRail24.7 kg18.0 °C11.8 h2.1 mm13h 24m
Lleida, SpainAir268 kg19.1 °C13.0 h1.4 mm4h 54m
Alzira, SpainAir340 kg20.3 °C12.2 h1.3 mm5h 18m
Seville, SpainAir429 kg21.7 °C12.3 h0.8 mm5h 48m
Kairouan, TunisiaAir440 kg21.8 °C11.0 h1.7 mm5h 48m
Gafsa, TunisiaAir468 kg22.9 °C11.7 h1.2 mm6h
Metlaoui, TunisiaAir470 kg23.8 °C11.8 h0.8 mm6h
Tozeur, TunisiaAir480 kg25.8 °C11.6 h0.6 mm6h
Moulay Ali Cherif, MoroccoAir576 kg26.6 °C12.1 h0.1 mm6h 36m
Zagora, MoroccoAir612 kg27.6 °C12.4 h0.0 mm6h 42m
Mallawi, EgyptAir855 kg28.6 °C11.8 h0.1 mm8h
Edfu, EgyptAir882 kg31.4 °C12.1 h0.0 mm8h 30m

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 (612 kg, 27.6 °C) to Mallawi (855 kg, 28.6 °C) buys 1.0 °C more warmth for an extra 243 kg — 243 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 Brussels 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 Brussels

May from elsewhere

Questions

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

Edfu, Egypt, at 31.4 °C. Reaching it emits 882 kg CO₂e return, travelling 8h 30m each way by air.

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

Yes. Cannes reaches 18.0 °C and is reachable by rail or ferry in 13h 24m, emitting 24.7 kg CO₂e return — though Edfu is warmer still, if you fly.

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

882 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.