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Cardiff · April · warmth

Warmest places to go from Cardiff in April

In April, the warmest well-known place within 15 hours of Cardiff is Aswan, Egypt, averaging 28.1 °C across day and night and 11.8 h sun a day, about 9h 18m each way by air. Without flying, it is Perpignan, France, averaging 15.2 °C across day and night, about 14h 6m each way by train, for about 22× less carbon (46.7 kg CO₂e return against 1,011 kg).

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

The 10 warmest places within 15 hours of Cardiff

Ranked on warmth in April 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.

  1. Aswan, Egypt28.1 °C · 11.8 h sun a day · mostly dryair ≈ 9h 18m · 1,011 kg CO₂e return
  2. Luxor, Egypt27.4 °C · 11.8 h sun a day · mostly dryair ≈ 9h · 974 kg CO₂e return
  3. Sharm el-Sheikh, Egypt27.3 °C · 11.9 h sun a day · mostly dry · sea 23.2 °Cair ≈ 8h 54m · 953 kg CO₂e return
  4. Aqaba, Jordan25.2 °C · 11.7 h sun a day · mostly dry · sea 22.2 °Cair ≈ 8h 48m · 931 kg CO₂e return
  5. Maspalomas, Spain22.1 °C · 11.9 h sun a day · mostly dry · sea 20.5 °Cair ≈ 7h 18m · 713 kg CO₂e return
  6. Marrakesh, Morocco21.7 °C · 11.5 h sun a day · mostly dryair ≈ 6h 30m · 564 kg CO₂e return
  7. Ouarzazate, Morocco20.8 °C · 12.2 h sun a day · mostly dryair ≈ 6h 36m · 580 kg CO₂e return
  8. Agadir, Morocco20.2 °C · 12.1 h sun a day · mostly dry · sea 18.5 °Cair ≈ 6h 42m · 604 kg CO₂e return
  9. Las Palmas de Gran Canaria, Spain20.1 °C · 11.6 h sun a day · mostly dry · sea 20.5 °Cair ≈ 7h 12m · 703 kg CO₂e return
  10. Seville, Spain19.8 °C · 11.8 h sun a day · mostly dryair ≈ 5h 36m · 398 kg CO₂e return

Without flying

The warmest places the train reaches within 15 hours. Perpignan is 15.2 °C for 46.7 kg — about 22× less carbon than flying to Aswan.

  1. Perpignan, France15.2 °C · 10.4 h sun a day · 1.3 mm rain a day · sea 14.4 °Crail ≈ 14h 6m · 46.7 kg CO₂e return
  2. Toulon, France14.5 °C · 11.5 h sun a day · 1.2 mm rain a day · sea 15.1 °Crail ≈ 13h · 47.6 kg CO₂e return
  3. Nice, France14.4 °C · 11.3 h sun a day · 1.5 mm rain a day · sea 15.4 °Crail ≈ 14h 48m · 47.3 kg CO₂e return
  4. Avignon, France13.5 °C · 10.9 h sun a day · 1.6 mm rain a dayrail ≈ 11h 48m · 44.1 kg CO₂e return
  5. Turin, Italy12.5 °C · 10.2 h sun a day · 2.4 mm rain a dayrail ≈ 14h 48m · 44.1 kg CO₂e return
  6. Karlsruhe, Germany10.2 °C · 8.9 h sun a day · 3.0 mm rain a dayrail ≈ 13h · 36.7 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 Cardiff in April within 15 hours is Kom Ombo, 28.3 °C, costing 1,004 kg CO₂e return. The lowest-carbon option is Portsmouth at 13.2 kg — 76× less carbon, for 18.8 degrees less warmth.

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

PortsmouthKom Ombo
Where they are. Solid lines are rail or ferry, dashed are flights, from Cardiff. Pick one to compare.
Carbon against warmth, April, departing Cardiff. Journeys of up to 15 hours each way.17 destinations. Lowest carbon Portsmouth at 13.2 kilograms and 9.5 °C; best for warmth Kom Ombo at 1,004 kilograms and 28.3 °C. Portsmouth · 13.2 kgPerpignan · 46.7 kgZaragoza · 278 kgKom Ombo · 1,004 kg

By rail or ferry By air

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

What the 15-hour limit costs: at this budget Palma del Rio can only be reached by air — 388 kg CO₂e, in 5h 36m. Allow up to 24 hours and the train does the same journey for 63.8 kg in 23h 36m — 6× less carbon for 18h more travelling.

April from Cardiff — 17 destinations on the frontier, 7 without flying.
DestinationHowCO₂e returnTempSun/dayRain/dayJourney
Portsmouth, United KingdomRail13.2 kg9.5 °C8.5 h2.6 mm3h 54m
Newquay, United KingdomRail14.3 kg10.0 °C8.1 h3.9 mm4h 6m
Angers, FranceRail30.3 kg11.1 °C8.8 h2.2 mm12h 12m
La Rochelle, FranceRail34.7 kg12.1 °C9.8 h2.6 mm12h 54m
Bordeaux, FranceRail38.9 kg12.9 °C9.6 h2.2 mm11h 12m
Montpellier, FranceRail44.4 kg14.1 °C10.5 h1.9 mm12h 30m
Perpignan, FranceRail46.7 kg15.2 °C10.4 h1.3 mm14h 6m
Zaragoza, SpainAir278 kg16.1 °C11.3 h0.6 mm5h
Alzira, SpainAir349 kg18.2 °C11.5 h0.1 mm5h 18m
Andujar, SpainAir376 kg18.7 °C11.9 h0.4 mm5h 30m
Palma del Rio, SpainAir388 kg20.0 °C11.9 h0.4 mm5h 36m
Al Fqih Ben Calah, MoroccoAir536 kg21.9 °C11.5 h0.5 mm6h 18m
Recani, MoroccoAir565 kg23.2 °C11.7 h0.0 mm6h 30m
Zagora, MoroccoAir594 kg24.7 °C12.1 h0.0 mm6h 36m
Sohag, EgyptAir943 kg26.3 °C11.7 h0.0 mm8h 54m
Luxor, EgyptAir974 kg27.4 °C11.8 h0.0 mm9h
Kom Ombo, EgyptAir1,004 kg28.3 °C11.8 h0.0 mm9h 12m

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 Perpignan (46.7 kg, 15.2 °C) to Zaragoza (278 kg, 16.1 °C) buys 0.9 °C more warmth for an extra 232 kg — 257 kg of CO₂e per degree. That single step is the most expensive warmth on the whole curve.

The pick of them

Portsmouth, United KingdomPortsmouthUnited Kingdom13.2 kg CO₂e return9.5 °C · 8.5 h sun · 3h 54m by railcold but brightPerpignan, FrancePerpignanFrance46.7 kg CO₂e return15.2 °C · 10.4 h sun · 14h 6m by railwarm overallKom Ombo, EgyptKom OmboEgypt1,004 kg CO₂e return28.3 °C · 11.8 h sun · 9h 12m by airwarm, bright and dry

The same month, asked differently

April 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 Cardiff

April from elsewhere

Photo credits

Questions

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

Kom Ombo, Egypt, at 28.3 °C. Reaching it emits 1,004 kg CO₂e return, travelling 9h 12m each way by air (modelled).

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

Yes. Perpignan reaches 15.2 °C and is reachable by rail or ferry in 14h 6m (modelled), emitting 46.7 kg CO₂e return — though Kom Ombo is warmer still, if you fly.

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

1,004 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.