0xCarbon
Southampton · June · sunshine

Sunniest places to go from Southampton in June

The sunniest place you can reach from Southampton in June within 15 hours is Rauma at 16.1 h, costing 454 kg CO₂e return. The lowest-carbon option is Exeter at 12.1 kg — 38× less carbon for 3.7 h less.

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

ExeterRauma
Where they are. Solid lines are rail or ferry, dashed are flights, from Southampton. Pick one to compare.
Carbon against sunshine, June, departing Southampton. Journeys of up to 15 hours each way.6 destinations. Lowest carbon Exeter at 12.1 kilograms and 12.4 h; best for sunshine Rauma at 454 kilograms and 16.1 h. Exeter · 12.1 kgEsbjerg · 30.1 kgArendal · 267 kgRauma · 454 kg

By rail or ferry By air

Carbon against sunshine, June, departing Southampton. Journeys of up to 15 hours each way.

What the 15-hour limit costs: at this budget Gävle can only be reached by air — 397 kg CO₂e, in 5h 36m. Allow up to 24 hours and the train does the same journey for 52.3 kg in 23h 36m — 8× less carbon for 18h more travelling.

June from Southampton — 6 destinations on the frontier, 3 without flying.
DestinationHowCO₂e returnTempSun/dayRain/dayJourney
Exeter, United KingdomRail12.1 kg16.0 °C12.4 h1.3 mm4h 6m
Torquay, United KingdomRail12.6 kg16.1 °C13.2 h1.1 mm4h 12m
Esbjerg, DenmarkRail30.1 kg15.3 °C13.9 h2.8 mm13h 18m
Arendal, NorwayAir267 kg15.5 °C14.4 h3.5 mm4h 54m
Gävle, SwedenAir397 kg16.3 °C15.5 h1.8 mm5h 36m
Rauma, FinlandAir454 kg15.7 °C16.1 h2.0 mm5h 54m

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 Esbjerg (30.1 kg, 13.9 h) to Arendal (267 kg, 14.4 h) buys 0.5 hours more sunshine for an extra 237 kg — 474 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

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

Where to stay in Rauma

Places to stay in Rauma, Finland, 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 Southampton

June from elsewhere

Questions

Where is the sunniest place to go from Southampton in June?

Rauma, Finland, at 16.1 h. Reaching it emits 454 kg CO₂e return, travelling 5h 54m each way by air.

Can I get somewhere sunny from Southampton in June without flying?

Yes. Esbjerg reaches 13.9 h and is reachable by rail or ferry in 13h 18m, emitting 30.1 kg CO₂e return — though Rauma is sunnier still, if you fly.

How much carbon does a return trip from Southampton to Rauma produce?

454 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.