Southampton · April · warmth

Warmest places to go from Southampton in April

The warmest place you can reach from Southampton in April within 15 hours is Kom Ombo at 28.3 °C, costing 971 kg CO₂e return. The lowest-carbon option is Exeter at 12.1 kg — 80× less carbon for 19.0 °C less.

Every destination here is on the efficiency frontier: nowhere else in Europe is both warmer in April 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 Southampton. Pick one to compare.

By rail or ferry By air

Carbon against warmth, April, departing Southampton. Journeys of up to 15 hours each way.

What the 15-hour limit costs: at this budget Alzira can only be reached by air — 329 kg CO₂e, in 5h 12m. Allow up to 24 hours and the train does the same journey for 49.5 kg in 22h 18m — 7× less carbon for 17h 6m more travelling.

April from Southampton — 17 destinations on the frontier, 5 without flying.
Destination	How	CO₂e return	Temp	Sun/day	Rain/day	Journey
Exeter, United Kingdom	Rail	12.1 kg	9.3 °C	7.8 h	2.9 mm	4h 6m
Le Havre, France	Rail	15.6 kg	10.2 °C	9.2 h	2.7 mm	6h 36m
Angers, France	Rail	22.2 kg	11.1 °C	8.8 h	2.2 mm	9h 42m
La Rochelle, France	Rail	26.6 kg	12.1 °C	9.8 h	2.6 mm	11h 42m
Bordeaux, France	Rail	30.9 kg	12.9 °C	9.6 h	2.2 mm	13h 42m
Montpellier, France	Air	227 kg	14.1 °C	10.5 h	1.9 mm	4h 42m
Perpignan, France	Air	244 kg	15.2 °C	10.4 h	1.3 mm	4h 48m
Zaragoza, Spain	Air	259 kg	16.1 °C	11.3 h	0.6 mm	4h 54m
Alzira, Spain	Air	329 kg	18.2 °C	11.5 h	0.1 mm	5h 12m
Andujar, Spain	Air	364 kg	18.7 °C	11.9 h	0.4 mm	5h 24m
Seville, Spain	Air	389 kg	19.8 °C	11.8 h	0.2 mm	5h 36m
Tozeur, Tunisia	Air	513 kg	21.3 °C	10.8 h	0.6 mm	6h 12m
Arfoud, Morocco	Air	548 kg	22.8 °C	11.7 h	0.1 mm	6h 24m
Zagora, Morocco	Air	583 kg	24.7 °C	12.1 h	0.0 mm	6h 36m
Sohag, Egypt	Air	910 kg	26.3 °C	11.7 h	0.0 mm	8h 42m
Luxor, Egypt	Air	941 kg	27.4 °C	11.8 h	0.0 mm	8h 54m
Kom Ombo, Egypt	Air	971 kg	28.3 °C	11.8 h	0.0 mm	9h

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 (583 kg, 24.7 °C) to Sohag (910 kg, 26.3 °C) buys 1.6 °C more warmth for an extra 327 kg — 205 kg of CO₂e per degree. That single step is the most expensive warmth on the whole curve.

The pick of them

ExeterUnited Kingdom12.1 kg CO₂e return9.3 °C · 7.8 h sun · 4h 6m by railcold but bright BordeauxFrance30.9 kg CO₂e return12.9 °C · 9.6 h sun · 13h 42m by railmild and bright Kom OmboEgypt971 kg CO₂e return28.3 °C · 11.8 h sun · 9h by airwarm, bright and dry

If you'd rather have sunshine than heat

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

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.

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 Southampton

April from elsewhere

Questions

Where is the warmest place to go from Southampton in April?

Kom Ombo, Egypt, at 28.3 °C. Reaching it emits 971 kg CO₂e return, travelling 9h each way by air.

Can I get somewhere warm from Southampton in April without flying?

Yes. Bordeaux reaches 12.9 °C and is reachable by rail or ferry in 13h 42m, emitting 30.9 kg CO₂e return — though Kom Ombo is warmer still, if you fly.

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

971 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.