Zurich · July · relief from the heat

Coolest places to go from Zurich in July

In July, the coolest well-known place within 15 hours of Zurich is Reykjavik, Iceland, 9.2 °C cooler than Zurich and 9.5 h sun a day, about 7h each way by air. Without flying, it is Oldham, United Kingdom, 5.9 °C cooler than Zurich, about 13h 24m each way by train, for about 15× less carbon (44.1 kg CO₂e return against 659 kg).

The 10 coolest places within 15 hours of Zurich

Ranked on relief from the heat in July 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.

Reykjavik, Iceland9.2 °C cooler · 9.5 h sun a day · 2.9 mm rain a day · sea 11.1 °Cair ≈ 7h · 659 kg CO₂e return
Sligo, Ireland6.5 °C cooler · 7.8 h sun a day · 6.3 mm rain a day · sea 15.5 °Cair ≈ 5h 24m · 356 kg CO₂e return
Aberdeen, United Kingdom6.4 °C cooler · 10.7 h sun a day · 4.2 mm rain a day · sea 12.8 °Cair ≈ 5h 12m · 328 kg CO₂e return
Douglas, Isle of Man6.3 °C cooler · 10.2 h sun a day · 5.2 mm rain a day · sea 14.2 °Cair ≈ 5h 6m · 298 kg CO₂e return
Bergen, Norway6.0 °C cooler · 9.2 h sun a day · 7.7 mm rain a day · sea 15.1 °Cair ≈ 5h 30m · 368 kg CO₂e return
Oldham, United Kingdom5.9 °C cooler · 9.4 h sun a day · 5.2 mm rain a dayrail ≈ 13h 24m · 44.1 kg CO₂e return
Belfast, United Kingdom5.9 °C cooler · 9.5 h sun a day · 4.2 mm rain a dayair ≈ 5h 12m · 324 kg CO₂e return
Tralee, Ireland5.9 °C cooler · 8.6 h sun a day · 5.6 mm rain a dayair ≈ 5h 24m · 356 kg CO₂e return
Östersund, Sweden5.8 °C cooler · 12.0 h sun a day · 4.4 mm rain a dayair ≈ 5h 54m · 452 kg CO₂e return
Haugesund, Norway5.7 °C cooler · 10.8 h sun a day · 7.0 mm rain a day · sea 15.2 °Cair ≈ 5h 18m · 341 kg CO₂e return

Without flying

The coolest places the train reaches within 15 hours. Oldham is 5.9 °C cooler for 44.1 kg — about 15× less carbon than flying to Reykjavik.

Oldham, United Kingdom5.9 °C cooler · 9.4 h sun a day · 5.2 mm rain a dayrail ≈ 13h 24m · 44.1 kg CO₂e return
Merthyr Tydfil, United Kingdom5.4 °C cooler · 9.1 h sun a day · 5.8 mm rain a dayrail ≈ 14h 6m · 41.1 kg CO₂e return
Wrexham, United Kingdom5.1 °C cooler · 9.7 h sun a day · 4.0 mm rain a dayrail ≈ 14h 30m · 43.8 kg CO₂e return
Blackpool, United Kingdom4.6 °C cooler · 9.6 h sun a day · 5.0 mm rain a day · sea 16.8 °Crail ≈ 14h 24m · 49.0 kg CO₂e return
Esbjerg, Denmark3.9 °C cooler · 11.7 h sun a day · 5.7 mm rain a day · sea 17.7 °Crail ≈ 15h · 26.6 kg CO₂e return
Flensburg, Germany3.6 °C cooler · 11.7 h sun a day · 4.3 mm rain a dayrail ≈ 13h 48m · 24.4 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 Zurich in July within 15 hours is Reykjavik, 9.2 °C cooler, costing 659 kg CO₂e return. The lowest-carbon option is Pontarlier at 5.1 kg — 129× less carbon, for 6.6 degrees less relief from the heat.

Every destination here is on the efficiency frontier: nowhere else this site covers is both cooler in July 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 Zurich. Pick one to compare.

By rail or ferry By air

Carbon against relief from the heat, July, departing Zurich. Journeys of up to 15 hours each way.

July from Zurich — 5 destinations on the frontier, 4 without flying.
Destination	How	CO₂e return	Temp	Sun/day	Rain/day	Journey
Pontarlier, France	Rail	5.1 kg	17.5 °C	11.9 h	4.1 mm	4h 30m
High Wycombe, United Kingdom	Rail	26.6 kg	16.2 °C	10.3 h	3.3 mm	11h 24m
Stroud, United Kingdom	Rail	34.6 kg	15.6 °C	10.2 h	3.4 mm	12h 54m
Buxton, United Kingdom	Rail	41.4 kg	13.5 °C	9.7 h	4.7 mm	14h 6m
Reykjavik, Iceland	Air	659 kg	10.9 °C	9.5 h	2.9 mm	7h

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 Buxton (41.4 kg, 6.6 °C cooler) to Reykjavik (659 kg, 9.2 °C cooler) buys 2.6 °C more relief from the heat for an extra 617 kg — 237 kg of CO₂e per degree. That single step is the most expensive relief from the heat on the whole curve.

The pick of them

PontarlierFrance5.1 kg CO₂e return17.5 °C · 11.9 h sun · 4h 30m by railwarm but wet

BuxtonUnited Kingdom41.4 kg CO₂e return13.5 °C · 9.7 h sun · 14h 6m by railmild and bright

ReykjavikIceland659 kg CO₂e return10.9 °C · 9.5 h sun · 7h by airmild and bright

The same month, asked differently

July 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 Zurich

July from elsewhere

Photo credits

Pontarlier: Henk Monster, CC BY-SA 3.0, via Wikimedia Commons
Buxton: Andrew Hill, CC BY-SA 2.0, via Wikimedia Commons
Reykjavik: Hedwig Storch, CC BY-SA 3.0, via Wikimedia Commons
Sligo: Gerd Eichmann, CC BY-SA 4.0, via Wikimedia Commons
Aberdeen: Ragazzi00, CC BY-SA 3.0, via Wikimedia Commons
Douglas: Jim Linwood, CC BY 2.0, via Wikimedia Commons
Bergen: W. Bulach, CC BY-SA 4.0, via Wikimedia Commons
Oldham: Matt from Oldham, UK, CC BY 2.0, via Wikimedia Commons
Tralee: Colin Park, CC BY-SA 2.0, via Wikimedia Commons
Östersund: Lars Falkdalen Lindahl (User:Njaelkies Lea), CC BY-SA 3.0, via Wikimedia Commons
Haugesund: Efarestv, CC BY-SA 3.0, via Wikimedia Commons
Merthyr Tydfil: Robin Drayton, CC BY-SA 2.0, via Wikimedia Commons
Esbjerg: No machine-readable author provided. Cnyborg assumed (based on copyright claims)., CC BY-SA 3.0, via Wikimedia Commons

Questions

Where is the coolest place to go from Zurich in July?

Reykjavik, Iceland, at 9.2 °C cooler. Reaching it emits 659 kg CO₂e return, travelling 7h each way by air (modelled).

Can I get somewhere cool from Zurich in July without flying?

Yes. Buxton reaches 6.6 °C cooler and is reachable by rail or ferry in 14h 6m (modelled), emitting 41.4 kg CO₂e return — though Reykjavik is cooler still, if you fly.

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

659 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.