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Oslo · September · sunshine

Sunniest places to go from Oslo in September

In September, the sunniest well-known place within 15 hours of Oslo is Alexandria, Egypt, 11.9 h of sun a day and 27.4 °C, about 8h 12m each way by air. Without flying, it is Hamburg, Germany, 10.1 h of sun a day, about 12h 12m each way by train, for about 42× less carbon (20.9 kg CO₂e return against 879 kg).

The 10 sunniest places within 15 hours of Oslo

Ranked on sunshine in September 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.

  1. Alexandria, Egypt11.9 h · 27.4 °C · mostly dry · sea 28.7 °Cair ≈ 8h 12m · 879 kg CO₂e return
  2. Marmaris, Turkey11.8 h · 26.5 °C · mostly dryair ≈ 7h 18m · 717 kg CO₂e return
  3. Fethiye, Turkey11.8 h · 26.0 °C · 1.6 mm rain a day · sea 27.7 °Cair ≈ 7h 24m · 730 kg CO₂e return
  4. Bodrum, Turkey11.8 h · 26.2 °C · mostly dry · sea 26.0 °Cair ≈ 7h 12m · 706 kg CO₂e return
  5. Rhodes, Greece11.8 h · 27.0 °C · mostly dry · sea 27.4 °Cair ≈ 7h 24m · 728 kg CO₂e return
  6. Damietta, Egypt11.7 h · 27.2 °C · mostly dry · sea 28.8 °Cair ≈ 8h 12m · 888 kg CO₂e return
  7. Al Fayyum, Egypt11.7 h · 30.3 °C · mostly dryair ≈ 8h 30m · 871 kg CO₂e return
  8. Limassol, Cyprus11.6 h · 26.6 °C · mostly dry · sea 27.4 °Cair ≈ 7h 48m · 814 kg CO₂e return
  9. Amman, Jordan11.6 h · 24.9 °C · mostly dryair ≈ 8h 18m · 911 kg CO₂e return
  10. Heraklion, Greece11.6 h · 24.0 °C · mostly dry · sea 25.9 °Cair ≈ 7h 24m · 736 kg CO₂e return

Without flying

The sunniest places the train reaches within 15 hours. Hamburg is 10.1 h for 20.9 kg — about 42× less carbon than flying to Alexandria.

  1. Hamburg, Germany10.1 h · 16.8 °C · 2.0 mm rain a dayrail ≈ 12h 12m · 20.9 kg CO₂e return
  2. Dessau, Germany10.1 h · 18.1 °C · 1.4 mm rain a dayrail ≈ 15h · 26.6 kg CO₂e return
  3. Copenhagen, Denmark10.0 h · 16.5 °C · 1.5 mm rain a day · sea 17.4 °Crail ≈ 9h · 14.3 kg CO₂e return
  4. Schwerin, Germany10.0 h · 16.9 °C · 2.0 mm rain a dayrail ≈ 12h 6m · 20.7 kg CO₂e return
  5. Berlin, Germany10.0 h · 18.2 °C · mostly dryrail ≈ 14h 6m · 24.7 kg CO₂e return
  6. Olsztyn, Poland10.0 h · 17.8 °C · mostly dryrail ≈ 15h · 26.6 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 September within 15 hours is Izmir, 11.6 h, costing 668 kg CO₂e return. The lowest-carbon option is Karlstad at 4.9 kg — 136× less carbon, for 3.4 hours less sunshine.

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

KarlstadIzmir
Where they are. Solid lines are rail or ferry, dashed are flights, from Oslo. Pick one to compare.
Carbon against sunshine, September, departing Oslo. Journeys of up to 15 hours each way.7 destinations. Lowest carbon Karlstad at 4.9 kilograms and 8.2 h; best for sunshine Izmir at 668 kilograms and 11.6 h. Karlstad · 4.9 kgKaunas · 242 kgMangalia · 542 kgIzmir · 668 kg

By rail or ferry By air

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

What the 15-hour limit costs: at this budget Kaunas can only be reached by air — 242 kg CO₂e, in 4h 48m. Allow up to 24 hours and the train does the same journey for 28.4 kg in 22h 48m — 9× less carbon for 18h more travelling.

September from Oslo — 7 destinations on the frontier, 4 without flying.
DestinationHowCO₂e returnTempSun/dayRain/dayJourney
Karlstad, SwedenRail4.9 kg14.5 °C8.2 h2.8 mm4h 24m
Gothenburg, SwedenRail7.5 kg15.0 °C9.0 h3.2 mm5h 18m
Varberg, SwedenRail9.6 kg15.8 °C9.5 h3.3 mm6h 42m
Copenhagen, DenmarkRail14.3 kg16.5 °C10.0 h1.5 mm9h
Kaunas, LithuaniaAir242 kg17.5 °C10.6 h1.1 mm4h 48m
Mangalia, RomaniaAir542 kg21.1 °C11.1 h1.7 mm6h 24m
Izmir, TurkeyAir668 kg24.9 °C11.6 h1.0 mm7h

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 Kaunas (242 kg, 10.6 h) to Mangalia (542 kg, 11.1 h) buys 0.5 hours more sunshine for an extra 300 kg — 599 kg of CO₂e per hour. That single step is the most expensive sunshine on the whole curve.

The pick of them

Karlstad, SwedenKarlstadSweden4.9 kg CO₂e return14.5 °C · 8.2 h sun · 4h 24m by railmild and brightCopenhagen, DenmarkCopenhagenDenmark14.3 kg CO₂e return16.5 °C · 10.0 h sun · 9h by railwarm overallIzmir, TurkeyIzmirTurkey668 kg CO₂e return24.9 °C · 11.6 h sun · 7h by airwarm, bright and dry

The same month, asked differently

September 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 Izmir

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

Search places to stay in Izmir →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

September from elsewhere

Photo credits

Questions

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

Izmir, Turkey, at 11.6 h. Reaching it emits 668 kg CO₂e return, travelling 7h each way by air (modelled).

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

Yes. Copenhagen reaches 10.0 h and is reachable by rail or ferry in 9h (modelled), emitting 14.3 kg CO₂e return — though Izmir is sunnier still, if you fly.

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

668 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.