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Rome · September · warmth

Warmest places to go from Rome in September

In September, the warmest well-known place within 15 hours of Rome is Aswan, Egypt, averaging 34.1 °C across day and night and 11.5 h sun a day, about 7h 6m each way by air. Without flying, it is Catania, Italy, averaging 24.7 °C across day and night, about 8h 48m each way by train, for about 43× less carbon (15.8 kg CO₂e return against 687 kg).

Every city at once, with and without flying: where is hot in September.

The 10 warmest places within 15 hours of Rome

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.

  1. Aswan, Egypt34.1 °C · 11.5 h sun a day · mostly dryair ≈ 7h 6m · 687 kg CO₂e return
  2. Sharm el-Sheikh, Egypt33.7 °C · 11.5 h sun a day · mostly dry · sea 28.7 °Cair ≈ 6h 48m · 632 kg CO₂e return
  3. Luxor, Egypt33.6 °C · 11.6 h sun a day · mostly dryair ≈ 6h 54m · 648 kg CO₂e return
  4. Aqaba, Jordan31.5 °C · 11.4 h sun a day · mostly dry · sea 27.8 °Cair ≈ 6h 48m · 614 kg CO₂e return
  5. Sanliurfa, Turkey27.7 °C · 11.4 h sun a day · mostly dryair ≈ 6h 36m · 580 kg CO₂e return
  6. Adana, Turkey27.5 °C · 11.1 h sun a day · 1.5 mm rain a dayair ≈ 6h 12m · 510 kg CO₂e return
  7. Famagusta, Cyprus27.1 °C · 11.4 h sun a day · mostly dry · sea 28.6 °Cair ≈ 6h 12m · 504 kg CO₂e return
  8. Kairouan, Tunisia27.0 °C · 10.7 h sun a day · mostly dryair ≈ 4h 30m · 182 kg CO₂e return
  9. Rhodes, Greece27.0 °C · 11.8 h sun a day · mostly dry · sea 27.4 °Cair ≈ 5h 30m · 373 kg CO₂e return
  10. Batman, Turkey26.8 °C · 11.6 h sun a day · mostly dryair ≈ 6h 48m · 621 kg CO₂e return

Without flying

The warmest places the train reaches within 15 hours. Catania is 24.7 °C for 15.8 kg — about 43× less carbon than flying to Aswan.

  1. Catania, Italy24.7 °C · 11.0 h sun a day · 1.2 mm rain a day · sea 26.3 °Crail ≈ 8h 48m · 15.8 kg CO₂e return
  2. Taranto, Italy24.3 °C · 11.0 h sun a day · mostly dry · sea 26.1 °Crail ≈ 6h 54m · 12.6 kg CO₂e return
  3. Trapani, Italy24.2 °C · 11.3 h sun a day · 1.2 mm rain a day · sea 25.7 °Crail ≈ 7h 42m · 12.7 kg CO₂e return
  4. Corfu, Greece23.9 °C · 10.4 h sun a day · 3.0 mm rain a day · sea 26.0 °Crail ≈ 13h 54m · 19.9 kg CO₂e return
  5. Brindisi, Italy23.9 °C · 10.9 h sun a day · 2.1 mm rain a day · sea 25.4 °Crail ≈ 7h 36m · 14.0 kg CO₂e return
  6. Berat, Albania23.5 °C · 10.2 h sun a day · 2.6 mm rain a dayrail ≈ 12h 48m · 18.7 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 Rome in September within 15 hours is Sharm el-Sheikh, 33.7 °C, costing 632 kg CO₂e return. The lowest-carbon option is Castel Volturno at 4.5 kg — 140× less carbon, for 10.7 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.

Castel VolturnoSharm el-Sheikh
Where they are. Solid lines are rail or ferry, dashed are flights, from Rome. Pick one to compare.
Carbon against warmth, September, departing Rome. Journeys of up to 15 hours each way.11 destinations. Lowest carbon Castel Volturno at 4.5 kilograms and 23.0 °C; best for warmth Sharm el-Sheikh at 632 kilograms and 33.7 °C. Castel Volturno · 4.5 kgNefta · 246 kgMinya · 567 kgSharm el-Sheikh · 632 kg

By rail or ferry By air

Carbon against warmth, September, departing Rome. Journeys of up to 15 hours each way.
September from Rome — 11 destinations on the frontier, 2 without flying.
DestinationHowCO₂e returnTempSun/dayRain/dayJourney
Castel Volturno, ItalyRail4.5 kg23.0 °C10.8 h3.2 mm3h 42m
Palermo, ItalyRail12.6 kg24.5 °C11.0 h2.1 mm7h 42m
Tunis, TunisiaAir151 kg25.7 °C10.9 h0.9 mm4h 18m
Kairouan, TunisiaAir182 kg27.0 °C10.7 h0.7 mm4h 30m
Houmt Souk, TunisiaAir227 kg27.3 °C10.9 h0.7 mm4h 42m
Tozeur, TunisiaAir243 kg29.4 °C10.3 h0.3 mm4h 48m
Nefta, TunisiaAir246 kg29.6 °C10.2 h0.2 mm4h 48m
Minya, EgyptAir567 kg31.0 °C11.8 h0.0 mm6h 30m
Assiut, EgyptAir593 kg31.6 °C11.7 h0.0 mm6h 36m
Sohag, EgyptAir614 kg32.3 °C11.7 h0.0 mm6h 48m
Sharm el-Sheikh, EgyptAir632 kg33.7 °C11.5 h0.0 mm6h 48m

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 (246 kg, 29.6 °C) to Minya (567 kg, 31.0 °C) buys 1.4 °C more warmth for an extra 320 kg — 229 kg of CO₂e per degree. That single step is the most expensive warmth on the whole curve.

The pick of them

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 Rome

September from elsewhere

Photo credits

Questions

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

Sharm el-Sheikh, Egypt, at 33.7 °C. Reaching it emits 632 kg CO₂e return, travelling 6h 48m each way by air (modelled).

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

Yes. Palermo reaches 24.5 °C and is reachable by rail or ferry in 7h 42m (modelled), emitting 12.6 kg CO₂e return — though Sharm el-Sheikh is warmer still, if you fly.

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

632 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.