Bristol · July · warmth

Warmest places to go from Bristol in July

The warmest place you can reach from Bristol in July within 15 hours is Zagora at 36.6 °C, costing 595 kg CO₂e return. The lowest-carbon option is Hemel Hempstead at 12.2 kg — 49× less carbon for 20.3 °C less.

Every destination here is on the efficiency frontier: nowhere else in Europe is both warmer 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 Bristol. Pick one to compare.

By rail or ferry By air

Carbon against warmth, July, departing Bristol. Journeys of up to 15 hours each way.

What the 15-hour limit costs: at this budget Orange can only be reached by air — 247 kg CO₂e, in 4h 48m. Allow up to 24 hours and the train does the same journey for 40.3 kg in 16h 36m — 6× less carbon for 11h 48m more travelling.

July from Bristol — 20 destinations on the frontier, 8 without flying.
Destination	How	CO₂e return	Temp	Sun/day	Rain/day	Journey
Hemel Hempstead, United Kingdom	Rail	12.2 kg	16.3 °C	10.2 h	3.1 mm	4h 6m
Bognor Regis, United Kingdom	Rail	12.3 kg	17.1 °C	10.9 h	3.2 mm	4h 6m
Dunkirk, France	Rail	19.1 kg	17.9 °C	11.2 h	2.7 mm	6h 48m
Amiens, France	Rail	21.0 kg	18.7 °C	10.8 h	2.4 mm	7h 42m
Paris, France	Rail	23.9 kg	20.0 °C	11.2 h	2.6 mm	9h
Mainz, Germany	Rail	31.9 kg	20.7 °C	11.6 h	3.9 mm	12h 48m
Chalon-sur-Saône, France	Rail	32.6 kg	21.2 °C	12.4 h	2.9 mm	13h 6m
Lyon, France	Rail	35.5 kg	22.5 °C	13.0 h	3.1 mm	14h 24m
Romans-sur-Isère, France	Air	229 kg	23.5 °C	13.7 h	1.6 mm	4h 42m
Orange, France	Air	247 kg	25.3 °C	13.7 h	0.9 mm	4h 48m
Nîmes, France	Air	250 kg	25.5 °C	13.5 h	0.8 mm	4h 48m
Zaragoza, Spain	Air	276 kg	27.1 °C	13.7 h	0.2 mm	5h
Madrid, Spain	Air	310 kg	28.1 °C	14.0 h	0.0 mm	5h 6m
Aranjuez, Spain	Air	320 kg	28.9 °C	14.0 h	0.0 mm	5h 12m
Andujar, Spain	Air	376 kg	30.9 °C	13.6 h	0.0 mm	5h 30m
Kairouan, Tunisia	Air	509 kg	32.8 °C	12.9 h	0.0 mm	6h 12m
Ar Rudayyif, Tunisia	Air	525 kg	33.3 °C	12.9 h	0.0 mm	6h 18m
Metlaoui, Tunisia	Air	528 kg	34.3 °C	12.9 h	0.0 mm	6h 18m
Tozeur, Tunisia	Air	536 kg	35.6 °C	13.0 h	0.0 mm	6h 18m
Zagora, Morocco	Air	595 kg	36.6 °C	12.1 h	0.0 mm	6h 42m

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 Lyon (35.5 kg, 22.5 °C) to Romans-sur-Isère (229 kg, 23.5 °C) buys 1.0 °C more warmth for an extra 193 kg — 193 kg of CO₂e per degree. That single step is the most expensive warmth on the whole curve.

The pick of them

Hemel HempsteadUnited Kingdom12.2 kg CO₂e return16.3 °C · 10.2 h sun · 4h 6m by railwarm but wet LyonFrance35.5 kg CO₂e return22.5 °C · 13.0 h sun · 14h 24m by railwarm but wet ZagoraMorocco595 kg CO₂e return36.6 °C · 12.1 h sun · 6h 42m by airwarm, bright and dry

If you'd rather have sunshine than heat

July answers differently depending on what you're after. The sunniest destinations from Bristol in July are a different list — the brightest places are not always the hottest, and in winter the difference is large.

Where to stay in Zagora

Places to stay in Zagora, Morocco, 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 Bristol

July from elsewhere

Questions

Where is the warmest place to go from Bristol in July?

Zagora, Morocco, at 36.6 °C. Reaching it emits 595 kg CO₂e return, travelling 6h 42m each way by air.

Can I get somewhere warm from Bristol in July without flying?

Yes. Lyon reaches 22.5 °C and is reachable by rail or ferry in 14h 24m, emitting 35.5 kg CO₂e return — though Zagora is warmer still, if you fly.

How much carbon does a return trip from Bristol to Zagora produce?

595 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.