0xCarbon
Stockholm · August · relief from the heat

Coolest places to go from Stockholm in August

In August, the coolest well-known place within 15 hours of Stockholm is Reykjavik, Iceland, 6.3 °C cooler than Stockholm and 8.6 h sun a day, about 6h 18m each way by air. Without flying, it is Bergen, Norway, 3.3 °C cooler than Stockholm, about 12h 24m each way by train, for about 25× less carbon (21.3 kg CO₂e return against 536 kg).

The 10 coolest places within 15 hours of Stockholm

Ranked on relief from the heat in August 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 relief from the heat each extra kilogram buys.

  1. Reykjavik, Iceland6.3 °C cooler · 8.6 h sun a day · 3.8 mm rain a day · sea 12.0 °Cair ≈ 6h 18m · 536 kg CO₂e return
  2. Bergen, Norway3.3 °C cooler · 6.6 h sun a day · 11.7 mm rain a day · sea 15.7 °Crail ≈ 12h 24m · 21.3 kg CO₂e return
  3. Östersund, Sweden3.2 °C cooler · 10.0 h sun a day · 5.1 mm rain a dayrail ≈ 8h 12m · 13.7 kg CO₂e return
  4. Sligo, Ireland2.7 °C cooler · 8.7 h sun a day · 6.6 mm rain a day · sea 16.0 °Cair ≈ 5h 48m · 427 kg CO₂e return
  5. Douglas, Isle of Man2.5 °C cooler · 10.1 h sun a day · 4.1 mm rain a day · sea 15.5 °Cair ≈ 5h 30m · 373 kg CO₂e return
  6. Haugesund, Norway2.5 °C cooler · 8.7 h sun a day · 8.6 mm rain a day · sea 15.9 °Crail ≈ 11h 54m · 21.4 kg CO₂e return
  7. Oldham, United Kingdom2.4 °C cooler · 9.2 h sun a day · 3.6 mm rain a dayair ≈ 5h 24m · 350 kg CO₂e return
  8. Glasgow, United Kingdom2.4 °C cooler · 9.5 h sun a day · 5.1 mm rain a dayair ≈ 5h 18m · 347 kg CO₂e return
  9. Ålesund, Norway2.4 °C cooler · 7.5 h sun a day · 6.3 mm rain a day · sea 15.1 °Crail ≈ 12h 36m · 21.6 kg CO₂e return
  10. Belfast, United Kingdom2.2 °C cooler · 10.0 h sun a day · 4.1 mm rain a dayair ≈ 5h 30m · 387 kg CO₂e return

Without flying

The coolest places the train reaches within 15 hours. Bergen is 3.3 °C cooler for 21.3 kg — about 25× less carbon than flying to Reykjavik.

  1. Bergen, Norway3.3 °C cooler · 6.6 h sun a day · 11.7 mm rain a day · sea 15.7 °Crail ≈ 12h 24m · 21.3 kg CO₂e return
  2. Östersund, Sweden3.2 °C cooler · 10.0 h sun a day · 5.1 mm rain a dayrail ≈ 8h 12m · 13.7 kg CO₂e return
  3. Haugesund, Norway2.5 °C cooler · 8.7 h sun a day · 8.6 mm rain a day · sea 15.9 °Crail ≈ 11h 54m · 21.4 kg CO₂e return
  4. Ålesund, Norway2.4 °C cooler · 7.5 h sun a day · 6.3 mm rain a day · sea 15.1 °Crail ≈ 12h 36m · 21.6 kg CO₂e return
  5. Trondheim, Norway2.0 °C cooler · 9.6 h sun a day · 4.6 mm rain a dayrail ≈ 10h 48m · 18.0 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 coolest place you can reach from Stockholm in August within 15 hours is Reykjavik, 6.3 °C cooler, costing 536 kg CO₂e return. The lowest-carbon option is Östersund at 13.7 kg — 39× less carbon, for 3.1 degrees less relief from the heat.

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

ÖstersundReykjavik
Where they are. Solid lines are rail or ferry, dashed are flights, from Stockholm. Pick one to compare.
Carbon against relief from the heat, August, departing Stockholm. Journeys of up to 15 hours each way.2 destinations. Lowest carbon Östersund at 13.7 kilograms and 3.2 °C cooler; best for relief from the heat Reykjavik at 536 kilograms and 6.3 °C cooler. Östersund · 13.7 kgReykjavik · 536 kg

By rail or ferry By air

Carbon against relief from the heat, August, departing Stockholm. Journeys of up to 15 hours each way.
August from Stockholm — 2 destinations on the frontier, 1 without flying.
DestinationHowCO₂e returnTempSun/dayRain/dayJourney
Östersund, SwedenRail13.7 kg13.8 °C10.0 h5.1 mm8h 12m
Reykjavik, IcelandAir536 kg10.7 °C8.6 h3.8 mm6h 18m

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 Östersund (13.7 kg, 3.2 °C cooler) to Reykjavik (536 kg, 6.3 °C cooler) buys 3.1 °C more relief from the heat for an extra 523 kg — 169 kg of CO₂e per degree. That single step is the most expensive relief from the heat on the whole curve.

The pick of them

Östersund, SwedenÖstersundSweden13.7 kg CO₂e return13.8 °C · 10.0 h sun · 8h 12m by railmild and brightReykjavik, IcelandReykjavikIceland536 kg CO₂e return10.7 °C · 8.6 h sun · 6h 18m by airmild and bright

The same month, asked differently

August 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 Reykjavik

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

Search places to stay in Reykjavik →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 Stockholm

August from elsewhere

Photo credits

Questions

Where is the coolest place to go from Stockholm in August?

Reykjavik, Iceland, at 6.3 °C cooler. Reaching it emits 536 kg CO₂e return, travelling 6h 18m each way by air (modelled).

Can I get somewhere cool from Stockholm in August without flying?

Yes. Östersund reaches 3.2 °C cooler and is reachable by rail or ferry in 8h 12m (modelled), emitting 13.7 kg CO₂e return — though Reykjavik is cooler still, if you fly.

How much carbon does a return trip from Stockholm to Reykjavik produce?

536 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.