Lisbon · December · sunshine

Sunniest places to go from Lisbon in December

The sunniest place you can reach from Lisbon in December within 15 hours is Luxor at 10.0 h, costing 971 kg CO₂e return. The lowest-carbon option is Coimbra at 5.2 kg — 187× less carbon for 2.6 h less.

Every destination here is on the efficiency frontier: nowhere else in Europe is both sunnier in December 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 Lisbon. Pick one to compare.

By rail or ferry By air

Carbon against sunshine, December, departing Lisbon. Journeys of up to 15 hours each way.

December from Lisbon — 5 destinations on the frontier, 3 without flying.
Destination	How	CO₂e return	Temp	Sun/day	Rain/day	Journey
Coimbra, Portugal	Rail	5.2 kg	10.2 °C	7.4 h	1.3 mm	4h 24m
Portimão, Portugal	Rail	5.4 kg	13.2 °C	8.0 h	0.5 mm	4h 30m
Almuñécar, Spain	Rail	15.6 kg	13.5 °C	8.6 h	0.5 mm	9h 12m
Beni Mellal, Morocco	Air	190 kg	14.6 °C	9.2 h	0.3 mm	4h 30m
Luxor, Egypt	Air	971 kg	18.0 °C	10.0 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 Beni Mellal (190 kg, 9.2 h) to Luxor (971 kg, 10.0 h) buys 0.8 hours more sunshine for an extra 781 kg — 977 kg of CO₂e per hour. That single step is the most expensive sunshine on the whole curve.

The pick of them

CoimbraPortugal5.2 kg CO₂e return10.2 °C · 7.4 h sun · 4h 24m by railmild and bright AlmuñécarSpain15.6 kg CO₂e return13.5 °C · 8.6 h sun · 9h 12m by railmild and bright LuxorEgypt971 kg CO₂e return18.0 °C · 10.0 h sun · 9h by airwarm, bright and dry

If you'd rather have heat than sunshine

December answers differently depending on what you're after. The warmest destinations from Lisbon in December are a different list — hours of sunshine and degrees of warmth come apart, especially early and late in the year.

Where to stay in Luxor

Places to stay in Luxor, 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 Lisbon

December from elsewhere

Questions

Where is the sunniest place to go from Lisbon in December?

Luxor, Egypt, at 10.0 h. Reaching it emits 971 kg CO₂e return, travelling 9h each way by air.

Can I get somewhere sunny from Lisbon in December without flying?

Yes. Almuñécar reaches 8.6 h and is reachable by rail or ferry in 9h 12m, emitting 15.6 kg CO₂e return — though Luxor is sunnier still, if you fly.

How much carbon does a return trip from Lisbon to Luxor 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.