Warmest places to go from Brussels in September
In September, the warmest well-known place within 15 hours of Brussels is Aswan, Egypt, averaging 34.1 °C across day and night and 11.5 h sun a day, about 8h 36m each way by air. Without flying, it is Lleida, Spain, averaging 21.7 °C across day and night, about 12h 48m each way by train, for about 29× less carbon (31.4 kg CO₂e return against 901 kg).
Every city at once, with and without flying: where is hot in September.
The 10 warmest places within 15 hours of Brussels
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 day · mostly dryair ≈ 8h 36m · 901 kg CO₂e return
Sharm el-Sheikh, Egypt33.7 °C · 11.5 h sun a day · mostly dry · sea 28.7 °Cair ≈ 8h 18m · 900 kg CO₂e return
Luxor, Egypt33.6 °C · 11.6 h sun a day · mostly dryair ≈ 8h 24m · 927 kg CO₂e return
Aqaba, Jordan31.5 °C · 11.4 h sun a day · mostly dry · sea 27.8 °Cair ≈ 8h 6m · 875 kg CO₂e return
Sanliurfa, Turkey27.7 °C · 11.4 h sun a day · mostly dryair ≈ 7h 36m · 782 kg CO₂e return
Adana, Turkey27.5 °C · 11.1 h sun a day · 1.5 mm rain a dayair ≈ 7h 24m · 727 kg CO₂e return- Famagusta, Cyprus27.1 °C · 11.4 h sun a day · mostly dry · sea 28.6 °Cair ≈ 7h 24m · 740 kg CO₂e return
Kairouan, Tunisia27.0 °C · 10.7 h sun a day · mostly dryair ≈ 5h 48m · 440 kg CO₂e return
Rhodes, Greece27.0 °C · 11.8 h sun a day · mostly dry · sea 27.4 °Cair ≈ 6h 48m · 624 kg CO₂e return
Batman, Turkey26.8 °C · 11.6 h sun a day · mostly dryair ≈ 7h 48m · 809 kg CO₂e return
Without flying
The warmest places the train reaches within 15 hours. Lleida is 21.7 °C for 31.4 kg — about 29× less carbon than flying to Aswan.
Lleida, Spain21.7 °C · 10.5 h sun a day · 2.3 mm rain a dayrail ≈ 12h 48m · 31.4 kg CO₂e return- Reus, Spain21.5 °C · 10.3 h sun a day · 2.6 mm rain a day · sea 25.1 °Crail ≈ 12h 54m · 32.6 kg CO₂e return
- Barcelona, Spain21.5 °C · 10.2 h sun a day · 2.6 mm rain a day · sea 25.2 °Crail ≈ 11h · 31.4 kg CO₂e return
Toulon, France21.3 °C · 10.6 h sun a day · 2.1 mm rain a day · sea 23.3 °Crail ≈ 8h 12m · 25.6 kg CO₂e return
Perpignan, France21.3 °C · 10.1 h sun a day · mostly dry · sea 21.4 °Crail ≈ 9h 18m · 26.9 kg CO₂e return
Nice, France21.2 °C · 10.3 h sun a day · 3.3 mm rain a day · sea 24.2 °Crail ≈ 10h · 24.3 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 warmest place you can reach from Brussels in September within 15 hours is Edfu, 34.0 °C, costing 882 kg CO₂e return. The lowest-carbon option is Krefeld at 4.8 kg — 184× less carbon, for 16.7 degrees less warmth.
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.
By rail or ferry By air
| Destination | How | CO₂e return | Temp | Sun/day | Rain/day | Journey |
|---|---|---|---|---|---|---|
| Krefeld, Germany | Rail | 4.8 kg | 17.3 °C | 9.8 h | 2.5 mm | 4h 24m |
| Karlsruhe, Germany | Rail | 10.5 kg | 18.1 °C | 9.7 h | 2.3 mm | 6h 54m |
| Aix-les-Bains, France | Rail | 17.3 kg | 18.9 °C | 9.3 h | 4.8 mm | 8h |
| Milan, Italy | Rail | 20.6 kg | 19.9 °C | 9.6 h | 5.3 mm | 11h 18m |
| Imperia, Italy | Rail | 24.3 kg | 21.9 °C | 10.4 h | 2.9 mm | 11h 42m |
| Alghero, Italy | Air | 298 kg | 22.9 °C | 10.7 h | 1.3 mm | 5h 6m |
| Ibiza Town, Spain | Air | 339 kg | 24.2 °C | 10.8 h | 1.6 mm | 5h 18m |
| Tunis, Tunisia | Air | 409 kg | 25.7 °C | 10.9 h | 0.9 mm | 5h 42m |
| Kairouan, Tunisia | Air | 440 kg | 27.0 °C | 10.7 h | 0.7 mm | 5h 48m |
| Metlaoui, Tunisia | Air | 470 kg | 27.7 °C | 10.5 h | 0.3 mm | 6h |
| Tozeur, Tunisia | Air | 480 kg | 29.4 °C | 10.3 h | 0.3 mm | 6h |
| Al Fayyum, Egypt | Air | 819 kg | 30.3 °C | 11.7 h | 0.0 mm | 7h 48m |
| Mallawi, Egypt | Air | 855 kg | 31.3 °C | 11.8 h | 0.0 mm | 8h |
| Edfu, Egypt | Air | 882 kg | 34.0 °C | 11.5 h | 0.0 mm | 8h 30m |
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 Tozeur (480 kg, 29.4 °C) to Al Fayyum (819 kg, 30.3 °C) buys 0.9 °C more warmth for an extra 339 kg — 376 kg of CO₂e per degree. That single step is the most expensive warmth on the whole curve.
The pick of them
EdfuEgypt882 kg CO₂e returnwarm, bright and dryThe 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 Edfu
Places to stay in Edfu, Egypt, on a live map. Prices and availability come from Stay22 and its booking partners.
Search places to stay in Edfu →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 Brussels
September 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
Photo credits
- Edfu: Olaf Tausch, CC BY 3.0, via Wikimedia Commons
- Aswan: Vyacheslav Argenberg, CC BY 4.0, via Wikimedia Commons
- Sharm el-Sheikh: Tanya Dedyukhina, CC BY 3.0, 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
- Lleida: Jorge Franganillo from Barcelona, Spain, CC BY 2.0, 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
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Questions
Where is the warmest place to go from Brussels in September?
Edfu, Egypt, at 34.0 °C. Reaching it emits 882 kg CO₂e return, travelling 8h 30m each way by air (modelled).
Can I get somewhere warm from Brussels in September without flying?
Yes. Imperia reaches 21.9 °C and is reachable by rail or ferry in 11h 42m (modelled), emitting 24.3 kg CO₂e return — though Edfu is warmer still, if you fly.
How much carbon does a return trip from Brussels to Edfu produce?
882 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.