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Sheffield · December · relief from the heat

Coolest places to go from Sheffield in December

In December, the coolest well-known place within 15 hours of Sheffield is Rovaniemi, Finland, 14.7 °C cooler than Sheffield and 0.1 h sun a day, about 6h 18m each way by air. Without flying, it is La Chaux-de-Fonds, Switzerland, 5.9 °C cooler than Sheffield, about 13h 54m each way by train, for about 13× less carbon (39.0 kg CO₂e return against 521 kg).

The 10 coolest places within 15 hours of Sheffield

Ranked on relief from the heat in December 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 relief from the heat each extra kilogram buys.

  1. Rovaniemi, Finland14.7 °C cooler · 0.1 h sun a day · 1.2 mm rain a dayair ≈ 6h 18m · 521 kg CO₂e return
  2. Tromsø, Norway12.9 °C cooler · 0.0 h sun a day · 3.8 mm rain a dayair ≈ 6h 18m · 524 kg CO₂e return
  3. Joensuu, Finland12.8 °C cooler · 0.9 h sun a day · 1.7 mm rain a dayair ≈ 6h 18m · 523 kg CO₂e return
  4. Östersund, Sweden12.7 °C cooler · 0.9 h sun a day · 1.8 mm rain a dayair ≈ 5h 24m · 360 kg CO₂e return
  5. Oulu, Finland12.6 °C cooler · 0.4 h sun a day · mostly dry · sea 0.2 °Cair ≈ 6h 6m · 498 kg CO₂e return
  6. Luleå, Sweden12.3 °C cooler · 0.3 h sun a day · 1.9 mm rain a day · sea 0.8 °Cair ≈ 6h · 473 kg CO₂e return
  7. Umeå, Sweden12.0 °C cooler · 0.9 h sun a day · 2.1 mm rain a day · sea 2.0 °Cair ≈ 5h 48m · 427 kg CO₂e return
  8. Bodø, Norway11.0 °C cooler · 0.0 h sun a day · 7.8 mm rain a day · sea 6.7 °Cair ≈ 5h 54m · 443 kg CO₂e return
  9. Oslo, Norway9.7 °C cooler · 1.8 h sun a day · 1.7 mm rain a dayair ≈ 4h 54m · 261 kg CO₂e return
  10. Erzurum, Turkey9.7 °C cooler · 6.9 h sun a day · mostly dryair ≈ 8h 12m · 886 kg CO₂e return

Without flying

The coolest places the train reaches within 15 hours. La Chaux-de-Fonds is 5.9 °C cooler for 39.0 kg — about 13× less carbon than flying to Rovaniemi.

  1. La Chaux-de-Fonds, Switzerland5.9 °C cooler · 4.0 h sun a day · 5.1 mm rain a dayrail ≈ 13h 54m · 39.0 kg CO₂e return
  2. Suhl, Germany5.5 °C cooler · 1.8 h sun a day · 3.7 mm rain a dayrail ≈ 14h 30m · 40.8 kg CO₂e return
  3. Bern, Switzerland5.1 °C cooler · 4.8 h sun a day · 4.8 mm rain a dayrail ≈ 13h 54m · 40.3 kg CO₂e return
  4. Memmingen, Germany5.1 °C cooler · 4.2 h sun a day · 3.5 mm rain a dayrail ≈ 14h 42m · 43.0 kg CO₂e return
  5. Ulm, Germany5.0 °C cooler · 3.9 h sun a day · 2.7 mm rain a dayrail ≈ 14h 6m · 41.9 kg CO₂e return
  6. Zurich, Switzerland4.5 °C cooler · 4.1 h sun a day · 4.6 mm rain a dayrail ≈ 13h 18m · 41.2 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 coolest place you can reach from Sheffield in December within 15 hours is Rovaniemi, 14.7 °C cooler, costing 521 kg CO₂e return. The lowest-carbon option is Charleville-Mézières at 29.9 kg — 17× less carbon, for 12.2 degrees less relief from the heat.

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

Charleville-MézièresRovaniemi
Where they are. Solid lines are rail or ferry, dashed are flights, from Sheffield. Pick one to compare.
Carbon against relief from the heat, December, departing Sheffield. Journeys of up to 15 hours each way.10 destinations. Lowest carbon Charleville-Mézières at 29.9 kilograms and 2.5 °C cooler; best for relief from the heat Rovaniemi at 521 kilograms and 14.7 °C cooler. Charleville-Mézières · 29.9 kgLillehammer · 281 kgTornio · 496 kgRovaniemi · 521 kg

By rail or ferry By air

Carbon against relief from the heat, December, departing Sheffield. Journeys of up to 15 hours each way.

What the 15-hour limit costs: at this budget Drammen can only be reached by air — 252 kg CO₂e, in 4h 48m. Allow up to 24 hours and the train does the same journey for 51.3 kg in 23h 18m — 5× less carbon for 18h 30m more travelling.

December from Sheffield — 10 destinations on the frontier, 5 without flying.
DestinationHowCO₂e returnTempSun/dayRain/dayJourney
Charleville-Mézières, FranceRail29.9 kg4.4 °C2.1 h3.3 mm9h 42m
Arlon, BelgiumRail32.0 kg3.6 °C1.8 h3.0 mm10h 30m
Schmallenberg, GermanyRail35.6 kg2.8 °C1.6 h4.6 mm12h 24m
Freudenstadt, GermanyRail38.9 kg1.8 °C3.1 h4.4 mm12h 54m
La Chaux-de-Fonds, SwitzerlandRail39.0 kg1.0 °C4.0 h5.1 mm13h 54m
Porsgrunn, NorwayAir236 kg-1.8 °C2.3 h3.2 mm4h 42m
Drammen, NorwayAir252 kg-3.4 °C2.1 h2.8 mm4h 48m
Lillehammer, NorwayAir281 kg-6.0 °C1.9 h1.9 mm5h
Tornio, FinlandAir496 kg-7.0 °C0.1 h1.4 mm6h 6m
Rovaniemi, FinlandAir521 kg-7.8 °C0.1 h1.2 mm6h 18m

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 Lillehammer (281 kg, 12.9 °C cooler) to Tornio (496 kg, 13.9 °C cooler) buys 1.0 °C more relief from the heat for an extra 215 kg — 215 kg of CO₂e per degree. That single step is the most expensive relief from the heat on the whole curve.

The pick of them

The same month, asked differently

December 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 Rovaniemi

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

Search places to stay in Rovaniemi →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 Sheffield

December from elsewhere

Photo credits

Questions

Where is the coolest place to go from Sheffield in December?

Rovaniemi, Finland, at 14.7 °C cooler. Reaching it emits 521 kg CO₂e return, travelling 6h 18m each way by air (modelled).

Can I get somewhere cool from Sheffield in December without flying?

Yes. La Chaux-de-Fonds reaches 5.9 °C cooler and is reachable by rail or ferry in 13h 54m (modelled), emitting 39.0 kg CO₂e return — though Rovaniemi is cooler still, if you fly.

How much carbon does a return trip from Sheffield to Rovaniemi produce?

521 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.