Sunniest places to go from Oslo in August
The sunniest place you can reach from Oslo in August within 15 hours is Trebinje at 12.9 h, costing 498 kg CO₂e return. The lowest-carbon option is Karlstad at 4.9 kg — 102× less carbon for 2.7 h less.
Every destination here is on the efficiency frontier: nowhere else in Europe is both sunnier in August and lower in carbon. Anything a better option beats outright has been left out.
By rail or ferry By air
What the 15-hour limit costs: at this budget Dunaújváros can only be reached by air — 386 kg CO₂e, in 5h 30m. Allow up to 24 hours and the train does the same journey for 45.3 kg in 23h — 9× less carbon for 17h 30m more travelling.
| Destination | How | CO₂e return | Temp | Sun/day | Rain/day | Journey |
|---|---|---|---|---|---|---|
| Karlstad, Sweden | Rail | 4.9 kg | 16.8 °C | 10.2 h | 4.9 mm | 4h 18m |
| Hjørring, Denmark | Rail | 8.1 kg | 16.3 °C | 10.7 h | 3.7 mm | 5h 48m |
| Ventspils, Latvia | Rail | 20.2 kg | 18.4 °C | 11.4 h | 3.7 mm | 11h 24m |
| Riga, Latvia | Rail | 24.9 kg | 18.6 °C | 11.8 h | 3.9 mm | 13h 30m |
| Dunaújváros, Hungary | Air | 386 kg | 24.2 °C | 12.4 h | 1.2 mm | 5h 30m |
| Trebinje, Bosnia and Herzegovina | Air | 498 kg | 24.9 °C | 12.9 h | 2.4 mm | 6h 6m |
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 Riga (24.9 kg, 11.8 h) to Dunaújváros (386 kg, 12.4 h) buys 0.6 hours more sunshine for an extra 361 kg — 602 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
August answers differently depending on what you're after. The warmest destinations from Oslo in August are a different list — hours of sunshine and degrees of warmth come apart, especially early and late in the year.
Where to stay in Trebinje
Places to stay in Trebinje, Bosnia and Herzegovina, 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 Oslo
August from elsewhere
- Amsterdam
- Barcelona
- Berlin
- Birmingham
- Bristol
- Brussels
- Cardiff
- Copenhagen
- Dublin
- Edinburgh
- Frankfurt
- Glasgow
- Leeds
- Lisbon
- Liverpool
- London
- Madrid
- Manchester
- Milan
- Munich
- Newcastle
- Nottingham
- Oslo
- Paris
- Prague
- Rome
- Sheffield
- Southampton
- Stockholm
- Vienna
- Warsaw
- Zurich
Questions
Where is the sunniest place to go from Oslo in August?
Trebinje, Bosnia and Herzegovina, at 12.9 h. Reaching it emits 498 kg CO₂e return, travelling 6h 6m each way by air.
Can I get somewhere sunny from Oslo in August without flying?
Yes. Riga reaches 11.8 h and is reachable by rail or ferry in 13h 30m, emitting 24.9 kg CO₂e return — though Trebinje is sunnier still, if you fly.
How much carbon does a return trip from Oslo to Trebinje produce?
498 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.