0xCarbon
Milan · April · sunshine

Sunniest places to go from Milan in April

The sunniest place you can reach from Milan in April within 15 hours is Cagliari at 12.0 h, costing 174 kg CO₂e return. The lowest-carbon option is Carpi at 4.5 kg — 39× less carbon for 1.6 h less.

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

CarpiCagliari
Where they are. Solid lines are rail or ferry, dashed are flights, from Milan. Pick one to compare.
Carbon against sunshine, April, departing Milan. Journeys of up to 15 hours each way.4 destinations. Lowest carbon Carpi at 4.5 kilograms and 10.4 h; best for sunshine Cagliari at 174 kilograms and 12.0 h. Carpi · 4.5 kgSiena · 8.6 kgCagliari · 174 kg

By rail or ferry By air

Carbon against sunshine, April, departing Milan. Journeys of up to 15 hours each way.
April from Milan — 4 destinations on the frontier, 3 without flying.
DestinationHowCO₂e returnTempSun/dayRain/dayJourney
Carpi, ItalyRail4.5 kg13.0 °C10.4 h3.2 mm4h 6m
La Spezia, ItalyRail4.7 kg13.0 °C11.0 h2.3 mm4h 12m
Siena, ItalyRail8.6 kg12.1 °C11.5 h2.4 mm6h
Cagliari, ItalyAir174 kg15.4 °C12.0 h0.6 mm4h 24m

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 Siena (8.6 kg, 11.5 h) to Cagliari (174 kg, 12.0 h) buys 0.5 hours more sunshine for an extra 166 kg — 332 kg of CO₂e per hour. That single step is the most expensive sunshine on the whole curve.

The pick of them

If you'd rather have heat than sunshine

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

Where to stay in Cagliari

Places to stay in Cagliari, Italy, 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 Milan

April from elsewhere

Questions

Where is the sunniest place to go from Milan in April?

Cagliari, Italy, at 12.0 h. Reaching it emits 174 kg CO₂e return, travelling 4h 24m each way by air.

Can I get somewhere sunny from Milan in April without flying?

Yes. Siena reaches 11.5 h and is reachable by rail or ferry in 6h, emitting 8.6 kg CO₂e return — though Cagliari is sunnier still, if you fly.

How much carbon does a return trip from Milan to Cagliari produce?

174 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.