Bristol · September · warmth

Warmest places to go from Bristol in September

The warmest place you can reach from Bristol in September within 15 hours is Sharm el-Sheikh, 33.7 °C, costing 944 kg CO₂e return. The lowest-carbon option is Hemel Hempstead at 12.2 kg — 77× less carbon, for 18.1 degrees less warmth.

The 10 warmest places within 15 hours of Bristol

Ranked on warmth 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 warmth each extra kilogram buys.

Aswan, Egypt34.1 °C · 11.5 h sun a dayair 9h 12m · 1,003 kg CO₂e return
Sharm el-Sheikh, Egypt33.7 °C · 11.5 h sun a dayair 8h 54m · 944 kg CO₂e return
Luxor, Egypt33.6 °C · 11.6 h sun a dayair 9h · 965 kg CO₂e return
Aqaba, Jordan31.5 °C · 11.4 h sun a dayair 8h 48m · 922 kg CO₂e return
Sanliurfa, Turkey27.7 °C · 11.4 h sun a dayair 8h 18m · 904 kg CO₂e return
Adana, Turkey27.5 °C · 11.1 h sun a dayair 8h · 848 kg CO₂e return
Famagusta, Cyprus27.1 °C · 11.4 h sun a dayair 8h 6m · 860 kg CO₂e return
Kairouan, Tunisia27.0 °C · 10.7 h sun a dayair 6h 12m · 509 kg CO₂e return
Rhodes, Greece27.0 °C · 11.8 h sun a dayair 7h 24m · 741 kg CO₂e return
Batman, Turkey26.8 °C · 11.6 h sun a dayair 8h 24m · 867 kg CO₂e return

Without flying

The warmest places the train reaches within 15 hours. Toulon is 21.3 °C for 44.4 kg — about 23× less carbon than flying to Aswan.

Toulon, France21.3 °C · 10.6 h sun a dayrail 12h 42m · 44.4 kg CO₂e return
Perpignan, France21.3 °C · 10.1 h sun a dayrail 13h 48m · 43.4 kg CO₂e return
Nice, France21.2 °C · 10.3 h sun a dayrail 14h 30m · 44.1 kg CO₂e return
Avignon, France20.1 °C · 10.3 h sun a dayrail 11h 30m · 40.8 kg CO₂e return
Turin, Italy18.7 °C · 9.6 h sun a dayrail 14h 30m · 40.9 kg CO₂e return
Karlsruhe, Germany18.1 °C · 9.7 h sun a dayrail 12h 42m · 33.4 kg CO₂e return

Rail times are modelled; air times include getting to and through the airport.

The low-carbon trade-off

Every destination here is on the efficiency frontier: nowhere else this site covers is both warmer in September 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, September, departing Bristol. Journeys of up to 15 hours each way.

What the 15-hour limit costs: at this budget Palma del Rio can only be reached by air — 388 kg CO₂e, in 5h 36m. Allow up to 24 hours and the train does the same journey for 60.6 kg in 23h 18m — 6× less carbon for 17h 42m more travelling.

September from Bristol — 18 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	15.6 °C	7.9 h	4.0 mm	3h 42m
Bognor Regis, United Kingdom	Rail	12.3 kg	16.5 °C	8.9 h	3.8 mm	3h 42m
Dunkirk, France	Rail	19.1 kg	17.3 °C	8.8 h	3.0 mm	8h
La Rochelle, France	Rail	31.4 kg	18.7 °C	10.0 h	3.5 mm	12h 36m
Villeneuve-sur-Lot, France	Rail	37.1 kg	19.1 °C	9.9 h	4.0 mm	13h 6m
Avignon, France	Rail	40.8 kg	20.1 °C	10.3 h	3.1 mm	11h 30m
Perpignan, France	Rail	43.4 kg	21.3 °C	10.1 h	1.1 mm	13h 48m
Cannes, France	Rail	44.2 kg	21.7 °C	10.3 h	3.3 mm	14h 30m
Valencia, Spain	Air	338 kg	22.9 °C	10.6 h	3.5 mm	5h 18m
Alzira, Spain	Air	347 kg	23.3 °C	10.1 h	2.4 mm	5h 18m
Palma del Rio, Spain	Air	388 kg	24.4 °C	10.9 h	0.9 mm	5h 36m
Bizerte, Tunisia	Air	467 kg	25.4 °C	10.8 h	0.4 mm	6h
Kairouan, Tunisia	Air	509 kg	27.0 °C	10.7 h	0.7 mm	6h 12m
Nefta, Tunisia	Air	536 kg	29.6 °C	10.2 h	0.2 mm	6h 18m
Minya, Egypt	Air	889 kg	31.0 °C	11.8 h	0.0 mm	8h 36m
Assiut, Egypt	Air	914 kg	31.6 °C	11.7 h	0.0 mm	8h 42m
Sohag, Egypt	Air	934 kg	32.3 °C	11.7 h	0.0 mm	8h 48m
Sharm el-Sheikh, Egypt	Air	944 kg	33.7 °C	11.5 h	0.0 mm	8h 54m

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 Nefta (536 kg, 29.6 °C) to Minya (889 kg, 31.0 °C) buys 1.4 °C more warmth for an extra 354 kg — 253 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 return15.6 °C · 7.9 h sun · 3h 42m by railwarm but wet

CannesFrance44.2 kg CO₂e return21.7 °C · 10.3 h sun · 14h 30m by railwarm but wet

Sharm el-SheikhEgypt944 kg CO₂e return33.7 °C · 11.5 h sun · 8h 54m 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 Sharm el-Sheikh

Places to stay in Sharm el-Sheikh, Egypt, on a live map. Prices and availability come from Stay22 and its booking partners.

Search places to stay in Sharm el-Sheikh →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 Bristol

September from elsewhere

Photo credits

Hemel Hempstead: Nigel Cox, CC BY-SA 2.0, via Wikimedia Commons
Cannes: Jenny Andersson / News Oresund, CC BY 2.0, via Wikimedia Commons
Sharm el-Sheikh: Tanya Dedyukhina, CC BY 3.0, via Wikimedia Commons
Aswan: Vyacheslav Argenberg, CC BY 4.0, via Wikimedia Commons
Luxor: Roland Unger, CC BY-SA 3.0, via Wikimedia Commons
Aqaba: Sana Janakat, CC BY-SA 4.0, via Wikimedia Commons
Sanliurfa: Damien Halleux Radermecker, CC BY-SA 2.0, via Wikimedia Commons
Adana: Anatolianpride, Public domain, via Wikimedia Commons
Kairouan: Unknown authorUnknown author, Public domain, via Wikimedia Commons
Rhodes: Bernard Gagnon, CC BY-SA 4.0, via Wikimedia Commons
Batman: Ferhat 72 at Turkish Wikipedia, Public domain, via Wikimedia Commons
Toulon: Rafi88, CC BY-SA 4.0, via Wikimedia Commons
Perpignan: Jean Tosti, Public domain, via Wikimedia Commons
Nice: Moody Dreiza (Moody751 at English Wikipedia), CC BY 2.5, via Wikimedia Commons
Avignon: Jean-Marc Rosier (de/from http://www.cjrosier.com + http://www.gordes-immobilier.com), CC BY-SA 3.0, via Wikimedia Commons

Questions

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

Sharm el-Sheikh, Egypt, at 33.7 °C. Reaching it emits 944 kg CO₂e return, travelling 8h 54m each way by air (modelled).

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

Yes. Cannes reaches 21.7 °C and is reachable by rail or ferry in 14h 30m (modelled), emitting 44.2 kg CO₂e return — though Sharm el-Sheikh is warmer still, if you fly.

How much carbon does a return trip from Bristol to Sharm el-Sheikh produce?

944 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.