Oslo · April · sunshine

Sunniest places to go from Oslo in April

In April, the sunniest well-known place within 15 hours of Oslo is Ouarzazate, Morocco, 12.2 h of sun a day and 20.8 °C, about 8h 6m each way by air. Without flying, it is Halmstad, Sweden, 10.0 h of sun a day, about 7h 30m each way by train, for about 78× less carbon (11.2 kg CO₂e return against 875 kg).

The 10 sunniest places within 15 hours of Oslo

Ranked on sunshine in April 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 sunshine each extra kilogram buys.

Ouarzazate, Morocco12.2 h · 20.8 °C · mostly dryair ≈ 8h 6m · 875 kg CO₂e return
Agadir, Morocco12.1 h · 20.2 °C · mostly dry · sea 18.5 °Cair ≈ 8h 18m · 909 kg CO₂e return
Ávila, Spain12.1 h · 11.0 °C · mostly dryair ≈ 6h 42m · 602 kg CO₂e return
Granada, Spain12.0 h · 16.5 °C · mostly dryair ≈ 7h 6m · 685 kg CO₂e return
Cagliari, Italy12.0 h · 15.4 °C · mostly dry · sea 15.8 °Cair ≈ 6h 36m · 579 kg CO₂e return
Essaouira, Morocco12.0 h · 18.9 °C · mostly dry · sea 17.3 °Cair ≈ 8h 12m · 881 kg CO₂e return
Portimão, Portugal11.9 h · 17.8 °C · mostly dry · sea 16.7 °Cair ≈ 7h 18m · 724 kg CO₂e return
Madrid, Spain11.9 h · 15.6 °C · mostly dryair ≈ 6h 42m · 601 kg CO₂e return
Olbia, Italy11.9 h · 15.1 °C · mostly dry · sea 15.2 °Cair ≈ 6h 18m · 532 kg CO₂e return
Sharm el-Sheikh, Egypt11.9 h · 27.3 °C · mostly dry · sea 23.2 °Cair ≈ 8h 48m · 932 kg CO₂e return

Without flying

The sunniest places the train reaches within 15 hours. Halmstad is 10.0 h for 11.2 kg — about 78× less carbon than flying to Ouarzazate.

Halmstad, Sweden10.0 h · 6.8 °C · 2.1 mm rain a day · sea 6.9 °Crail ≈ 7h 30m · 11.2 kg CO₂e return
Gothenburg, Sweden9.9 h · 6.3 °C · 2.3 mm rain a day · sea 6.7 °Crail ≈ 5h 18m · 7.5 kg CO₂e return
Aarhus, Denmark9.6 h · 7.1 °C · 3.0 mm rain a day · sea 7.4 °Crail ≈ 8h · 12.4 kg CO₂e return
Visby, Sweden9.6 h · 5.8 °C · mostly dry · sea 3.7 °Crail ≈ 9h 18m · 14.8 kg CO₂e return
Helsingborg, Sweden9.5 h · 7.1 °C · 1.7 mm rain a day · sea 6.5 °Crail ≈ 8h 24m · 13.1 kg CO₂e return
Copenhagen, Denmark9.4 h · 7.0 °C · 1.8 mm rain a day · sea 6.4 °Crail ≈ 9h · 14.3 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 sunniest place you can reach from Oslo in April within 15 hours is Cagliari, 12.0 h, costing 579 kg CO₂e return. The lowest-carbon option is Karlstad at 4.9 kg — 118× less carbon, for 2.7 hours less sunshine.

Every destination here is on the efficiency frontier: nowhere else this site covers is both sunnier in April 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 Oslo. Pick one to compare.

By rail or ferry By air

Carbon against sunshine, April, departing Oslo. Journeys of up to 15 hours each way.

April from Oslo — 6 destinations on the frontier, 2 without flying.
Destination	How	CO₂e return	Temp	Sun/day	Rain/day	Journey
Karlstad, Sweden	Rail	4.9 kg	5.0 °C	9.3 h	2.1 mm	4h 24m
Gothenburg, Sweden	Rail	7.5 kg	6.3 °C	9.9 h	2.3 mm	5h 18m
Trento, Italy	Air	387 kg	12.7 °C	10.6 h	2.2 mm	5h 36m
Cannes, France	Air	462 kg	14.7 °C	11.4 h	1.6 mm	5h 54m
Marseille, France	Air	474 kg	13.7 °C	11.7 h	0.8 mm	6h
Cagliari, Italy	Air	579 kg	15.4 °C	12.0 h	0.6 mm	6h 36m

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 Gothenburg (7.5 kg, 9.9 h) to Trento (387 kg, 10.6 h) buys 0.7 hours more sunshine for an extra 380 kg — 543 kg of CO₂e per hour. That single step is the most expensive sunshine on the whole curve.

The pick of them

KarlstadSweden4.9 kg CO₂e return5.0 °C · 9.3 h sun · 4h 24m by railcold but bright

GothenburgSweden7.5 kg CO₂e return6.3 °C · 9.9 h sun · 5h 18m by railcold but bright CagliariItaly579 kg CO₂e return15.4 °C · 12.0 h sun · 6h 36m by airwarm, bright and dry

The same month, asked differently

April 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 Cagliari

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

Search places to stay in Cagliari →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 Oslo

April from elsewhere

Photo credits

Karlstad: Håkan Svensson (Xauxa) (image 1), Janee (image 2 & 5), I99pema (image 3 & 4), CC BY-SA 3.0, via Wikimedia Commons
Gothenburg: Bengt Nyman from Vaxholm, Sweden, CC BY 2.0, via Wikimedia Commons
Ouarzazate: Bjørn Christian Tørrissen, CC BY-SA 3.0, via Wikimedia Commons
Agadir: Marco Riss, CC BY-SA 3.0, via Wikimedia Commons
Ávila: Anual, CC BY 3.0, via Wikimedia Commons
Essaouira: Kayaky, CC BY 3.0, via Wikimedia Commons
Portimão: Jose A., CC BY 2.0, via Wikimedia Commons
Olbia: Gianni Careddu, CC BY-SA 4.0, via Wikimedia Commons
Sharm el-Sheikh: Tanya Dedyukhina, CC BY 3.0, via Wikimedia Commons
Halmstad: Boberger. Photo: Bengt Oberger, CC BY 3.0, via Wikimedia Commons
Visby: Żeglarz, Public domain, via Wikimedia Commons
Helsingborg: Jsdo1980, Public domain, via Wikimedia Commons
Copenhagen: Pudelek, CC BY-SA 4.0, via Wikimedia Commons

Questions

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

Cagliari, Italy, at 12.0 h. Reaching it emits 579 kg CO₂e return, travelling 6h 36m each way by air (modelled).

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

Yes. Gothenburg reaches 9.9 h and is reachable by rail or ferry in 5h 18m (modelled), emitting 7.5 kg CO₂e return — though Cagliari is sunnier still, if you fly.

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

579 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.