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Barcelona · May · sunshine

Sunniest places to go from Barcelona in May

In May, the sunniest well-known place within 15 hours of Barcelona is Sundsvall, Sweden, 15.1 h of sun a day and 11.7 °C, about 6h 54m each way by air. Without flying, it is Zaragoza, Spain, 13.1 h of sun a day, about 2h 54m each way by train, for about 85× less carbon (7.5 kg CO₂e return against 639 kg).

The 10 sunniest places within 15 hours of Barcelona

Ranked on sunshine in May 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 sunshine each extra kilogram buys.

  1. Sundsvall, Sweden15.1 h · 11.7 °C · mostly dry · sea 5.0 °Cair ≈ 6h 54m · 639 kg CO₂e return
  2. Umeå, Sweden15.0 h · 9.0 °C · mostly dry · sea 3.8 °Cair ≈ 7h 12m · 693 kg CO₂e return
  3. Luleå, Sweden14.8 h · 7.9 °C · mostly dry · sea 1.5 °Cair ≈ 7h 30m · 746 kg CO₂e return
  4. Vaasa, Finland14.8 h · 9.8 °C · mostly dry · sea 5.2 °Cair ≈ 7h 6m · 686 kg CO₂e return
  5. Tallinn, Estonia14.7 h · 12.0 °C · mostly dry · sea 6.8 °Cair ≈ 6h 54m · 639 kg CO₂e return
  6. Turku, Finland14.4 h · 12.2 °C · mostly dryair ≈ 6h 54m · 635 kg CO₂e return
  7. Helsinki, Finland14.4 h · 11.0 °C · mostly dry · sea 6.4 °Cair ≈ 7h · 655 kg CO₂e return
  8. Pärnu, Estonia14.3 h · 13.1 °C · mostly dry · sea 11.8 °Cair ≈ 6h 48m · 617 kg CO₂e return
  9. Riga, Latvia14.2 h · 13.6 °C · 1.2 mm rain a day · sea 10.4 °Cair ≈ 6h 36m · 587 kg CO₂e return
  10. Tartu, Estonia14.1 h · 12.8 °C · mostly dryair ≈ 6h 54m · 642 kg CO₂e return

Without flying

The sunniest places the train reaches within 15 hours. Zaragoza is 13.1 h for 7.5 kg — about 85× less carbon than flying to Sundsvall.

  1. Zaragoza, Spain13.1 h · 18.8 °C · mostly dryrail ≈ 2h 54m · 7.5 kg CO₂e return
  2. Huesca, Spain12.9 h · 16.7 °C · mostly dryrail ≈ 4h 30m · 6.7 kg CO₂e return
  3. Portimão, Portugal12.6 h · 19.3 °C · mostly dry · sea 16.8 °Crail ≈ 11h 54m · 30.5 kg CO₂e return
  4. Valencia, Spain12.6 h · 19.3 °C · 1.2 mm rain a day · sea 19.1 °Crail ≈ 4h 30m · 8.9 kg CO₂e return
  5. Madrid, Spain12.6 h · 17.6 °C · mostly dryrail ≈ 4h · 14.9 kg CO₂e return
  6. Amadora, Portugal12.4 h · 17.9 °C · mostly dry · sea 16.8 °Crail ≈ 12h 30m · 29.9 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 sunniest place you can reach from Barcelona in May within 15 hours is Örnsköldsvik, 15.1 h, costing 670 kg CO₂e return. The lowest-carbon option is Tortosa at 4.5 kg — 149× less carbon, for 2.4 hours less sunshine.

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

TortosaÖrnsköldsvik
Where they are. Solid lines are rail or ferry, dashed are flights, from Barcelona. Pick one to compare.
Carbon against sunshine, May, departing Barcelona. Journeys of up to 15 hours each way.5 destinations. Lowest carbon Tortosa at 4.5 kilograms and 12.7 h; best for sunshine Örnsköldsvik at 670 kilograms and 15.1 h. Tortosa · 4.5 kgŚwinoujście · 417 kgÖrnsköldsvik · 670 kg

By rail or ferry By air

Carbon against sunshine, May, departing Barcelona. Journeys of up to 15 hours each way.

What the 15-hour limit costs: at this budget Allerød Municipality can only be reached by air — 446 kg CO₂e, in 5h 54m. Allow up to 24 hours and the train does the same journey for 52.3 kg in 23h — 9× less carbon for 17h 6m more travelling.

May from Barcelona — 5 destinations on the frontier, 1 without flying.
DestinationHowCO₂e returnTempSun/dayRain/dayJourney
Tortosa, SpainRail4.5 kg19.4 °C12.7 h1.8 mm3h 42m
Świnoujście, PolandAir417 kg14.6 °C13.2 h0.9 mm5h 42m
Allerød Municipality, DenmarkAir446 kg13.3 °C13.8 h0.7 mm5h 54m
Gävle, SwedenAir597 kg12.6 °C14.7 h0.7 mm6h 42m
Örnsköldsvik, SwedenAir670 kg9.0 °C15.1 h0.5 mm7h 6m

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 Tortosa (4.5 kg, 12.7 h) to Świnoujście (417 kg, 13.2 h) buys 0.5 hours more sunshine for an extra 412 kg — 824 kg of CO₂e per hour. That single step is the most expensive sunshine on the whole curve.

The pick of them

TortosaSpain4.5 kg CO₂e return19.4 °C · 12.7 h sun · 3h 42m by railwarm overallÖrnsköldsvik, SwedenÖrnsköldsvikSweden670 kg CO₂e return9.0 °C · 15.1 h sun · 7h 6m by aircold but bright

The same month, asked differently

May 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 Örnsköldsvik

Places to stay in Örnsköldsvik, Sweden, on a live map. Prices and availability come from Stay22 and its booking partners.

Search places to stay in Örnsköldsvik →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

May from elsewhere

Photo credits

Questions

Where is the sunniest place to go from Barcelona in May?

Örnsköldsvik, Sweden, at 15.1 h. Reaching it emits 670 kg CO₂e return, travelling 7h 6m each way by air (modelled).

Can I get somewhere sunny from Barcelona in May without flying?

Yes. Tortosa reaches 12.7 h and is reachable by rail or ferry in 3h 42m (modelled), emitting 4.5 kg CO₂e return — though Örnsköldsvik is sunnier still, if you fly.

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

670 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.