0xCarbon
Oslo · December · warmth

Warmest places to go from Oslo in December

The warmest place you can reach from Oslo in December within 15 hours is Sharm el-Sheikh at 20.4 °C, costing 932 kg CO₂e return. The lowest-carbon option is Karlstad at 4.9 kg — 190× less carbon for 21.9 °C less.

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

KarlstadSharm el-Sheikh
Where they are. Solid lines are rail or ferry, dashed are flights, from Oslo. Pick one to compare.
Carbon against warmth, December, departing Oslo. Journeys of up to 15 hours each way.20 destinations. Lowest carbon Karlstad at 4.9 kilograms and -1.5 °C; best for warmth Sharm el-Sheikh at 932 kilograms and 20.4 °C. Karlstad · 4.9 kgDen Helder · 25.2 kgBoulogne-sur-Mer · 295 kgSharm el-Sheikh · 932 kg

By rail or ferry By air

Carbon against warmth, December, departing Oslo. Journeys of up to 15 hours each way.

What the 15-hour limit costs: at this budget Boulogne-sur-Mer can only be reached by air — 295 kg CO₂e, in 5h 6m. Allow up to 24 hours and the train does the same journey for 34.6 kg in 18h — 9× less carbon for 12h 54m more travelling.

December from Oslo — 20 destinations on the frontier, 8 without flying.
DestinationHowCO₂e returnTempSun/dayRain/dayJourney
Karlstad, SwedenRail4.9 kg-1.5 °C2.1 h2.3 mm4h 18m
Uddevalla, SwedenRail5.5 kg0.7 °C2.1 h2.8 mm4h 36m
Arendal, NorwayRail5.8 kg2.0 °C1.9 h4.9 mm4h 42m
Stavanger, NorwayRail8.9 kg3.6 °C1.6 h7.4 mm6h 6m
Copenhagen, DenmarkRail14.3 kg4.3 °C1.5 h1.9 mm8h 36m
Wilhelmshaven, GermanyRail21.4 kg5.4 °C1.9 h3.4 mm11h 54m
Leeuwarden, The NetherlandsRail23.7 kg6.3 °C1.9 h3.8 mm13h
Den Helder, The NetherlandsRail25.2 kg7.3 °C2.6 h3.5 mm13h 42m
Boulogne-sur-Mer, FranceAir295 kg8.1 °C2.8 h3.8 mm5h 6m
Plymouth, United KingdomAir356 kg9.3 °C3.0 h4.5 mm5h 24m
Saint Helier, JerseyAir364 kg10.0 °C3.8 h3.0 mm5h 24m
Fondi, ItalyAir521 kg11.2 °C7.3 h2.4 mm6h 18m
Alghero, ItalyAir543 kg12.2 °C7.8 h1.5 mm6h 24m
Ibiza Town, SpainAir610 kg14.0 °C8.4 h0.4 mm6h 42m
Milazzo, ItalyAir612 kg14.7 °C7.1 h8.2 mm6h 42m
San Pawl il-Bahar, MaltaAir673 kg16.0 °C7.9 h1.3 mm7h 6m
Suez, EgyptAir867 kg16.9 °C9.3 h0.0 mm8h 24m
Eilat, IsraelAir897 kg17.9 °C9.2 h0.0 mm8h 36m
Puerto del Rosario, SpainAir926 kg18.9 °C9.4 h0.3 mm8h 48m
Sharm el-Sheikh, EgyptAir932 kg20.4 °C9.7 h0.1 mm8h 48m

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 Den Helder (25.2 kg, 7.3 °C) to Boulogne-sur-Mer (295 kg, 8.1 °C) buys 0.8 °C more warmth for an extra 269 kg — 337 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

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

Where to stay in Sharm el-Sheikh

Places to stay in Sharm el-Sheikh, 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 Oslo

December from elsewhere

Questions

Where is the warmest place to go from Oslo in December?

Sharm el-Sheikh, Egypt, at 20.4 °C. Reaching it emits 932 kg CO₂e return, travelling 8h 48m each way by air.

Can I get somewhere warm from Oslo in December without flying?

Yes. Den Helder reaches 7.3 °C and is reachable by rail or ferry in 13h 42m, emitting 25.2 kg CO₂e return — though Sharm el-Sheikh is warmer still, if you fly.

How much carbon does a return trip from Oslo to Sharm el-Sheikh produce?

932 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.