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Warsaw · September · warmth

Warmest places to go from Warsaw in September

In September, the warmest well-known place within 15 hours of Warsaw is Aswan, Egypt, averaging 34.1 °C across day and night and 11.5 h sun a day, about 7h 54m each way by air. Without flying, it is Trieste, Italy, averaging 20.8 °C across day and night, about 14h 36m each way by train, for about 31× less carbon (26.6 kg CO₂e return against 827 kg).

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

The 10 warmest places within 15 hours of Warsaw

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 54m · 827 kg CO₂e return
  2. Sharm el-Sheikh, Egypt33.7 °C · 11.5 h sun a day · mostly dry · sea 28.7 °Cair ≈ 7h 24m · 735 kg CO₂e return
  3. Luxor, Egypt33.6 °C · 11.6 h sun a day · mostly dryair ≈ 7h 36m · 782 kg CO₂e return
  4. Aqaba, Jordan31.5 °C · 11.4 h sun a day · mostly dry · sea 27.8 °Cair ≈ 7h 12m · 698 kg CO₂e return
  5. Sanliurfa, Turkey27.7 °C · 11.4 h sun a day · mostly dryair ≈ 6h 24m · 547 kg CO₂e return
  6. Adana, Turkey27.5 °C · 11.1 h sun a day · 1.5 mm rain a dayair ≈ 6h 12m · 511 kg CO₂e return
  7. Famagusta, Cyprus27.1 °C · 11.4 h sun a day · mostly dry · sea 28.6 °Cair ≈ 6h 24m · 543 kg CO₂e return
  8. Kairouan, Tunisia27.0 °C · 10.7 h sun a day · mostly dryair ≈ 6h 12m · 511 kg CO₂e return
  9. Rhodes, Greece27.0 °C · 11.8 h sun a day · mostly dry · sea 27.4 °Cair ≈ 6h · 464 kg CO₂e return
  10. Batman, Turkey26.8 °C · 11.6 h sun a day · mostly dryair ≈ 6h 30m · 561 kg CO₂e return

Without flying

The warmest places the train reaches within 15 hours. Trieste is 20.8 °C for 26.6 kg — about 31× less carbon than flying to Aswan.

  1. Trieste, Italy20.8 °C · 9.8 h sun a day · 6.4 mm rain a day · sea 24.7 °Crail ≈ 14h 36m · 26.6 kg CO₂e return
  2. Szeged, Hungary20.1 °C · 9.8 h sun a day · 1.9 mm rain a dayrail ≈ 11h 6m · 19.7 kg CO₂e return
  3. Oradea, Romania19.7 °C · 9.9 h sun a day · 1.8 mm rain a dayrail ≈ 13h 36m · 17.1 kg CO₂e return
  4. Debrecen, Hungary19.5 °C · 9.8 h sun a day · 2.5 mm rain a dayrail ≈ 9h 24m · 15.5 kg CO₂e return
  5. Satu Mare, Romania19.4 °C · 9.9 h sun a day · 2.1 mm rain a dayrail ≈ 12h 42m · 15.1 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 Warsaw in September within 15 hours is Sharm el-Sheikh, 33.7 °C, costing 735 kg CO₂e return. The lowest-carbon option is Lublin at 4.5 kg — 163× less carbon, for 15.8 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.

LublinSharm el-Sheikh
Where they are. Solid lines are rail or ferry, dashed are flights, from Warsaw. Pick one to compare.
Carbon against warmth, September, departing Warsaw. Journeys of up to 15 hours each way.15 destinations. Lowest carbon Lublin at 4.5 kilograms and 17.9 °C; best for warmth Sharm el-Sheikh at 735 kilograms and 33.7 °C. Lublin · 4.5 kgTrieste · 26.6 kgSplit · 258 kgSharm el-Sheikh · 735 kg

By rail or ferry By air

Carbon against warmth, September, departing Warsaw. Journeys of up to 15 hours each way.

What the 15-hour limit costs: at this budget Taranto can only be reached by air — 337 kg CO₂e, in 5h 18m. Allow up to 24 hours and the train does the same journey for 39.5 kg in 20h 42m — 9× less carbon for 15h 24m more travelling.

September from Warsaw — 15 destinations on the frontier, 4 without flying.
DestinationHowCO₂e returnTempSun/dayRain/dayJourney
Lublin, PolandRail4.5 kg17.9 °C10.0 h1.6 mm3h 42m
Michalovce, SlovakiaRail11.6 kg18.9 °C9.5 h2.9 mm7h 42m
Szolnok, HungaryRail16.7 kg20.3 °C9.5 h1.9 mm9h 36m
Trieste, ItalyRail26.6 kg20.8 °C9.8 h6.4 mm14h 36m
Split, CroatiaAir258 kg22.3 °C10.2 h4.7 mm4h 54m
Gevgelija, North MacedoniaAir311 kg22.9 °C10.6 h1.2 mm5h 12m
Taranto, ItalyAir337 kg24.3 °C11.0 h0.9 mm5h 18m
Mytilene, GreeceAir382 kg24.6 °C11.5 h1.2 mm5h 30m
OEdemis, TurkeyAir414 kg26.5 °C11.6 h0.3 mm5h 42m
Rhodes, GreeceAir464 kg27.0 °C11.8 h0.6 mm6h
Akcakale, TurkeyAir559 kg28.5 °C11.6 h0.1 mm6h 30m
Tozeur, TunisiaAir574 kg29.4 °C10.3 h0.3 mm6h 30m
Al Fayyum, EgyptAir673 kg30.3 °C11.7 h0.0 mm7h 6m
Assiut, EgyptAir732 kg31.6 °C11.7 h0.0 mm7h 24m
Sharm el-Sheikh, EgyptAir735 kg33.7 °C11.5 h0.0 mm7h 24m

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 Trieste (26.6 kg, 20.8 °C) to Split (258 kg, 22.3 °C) buys 1.5 °C more warmth for an extra 232 kg — 155 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 Warsaw

September from elsewhere

Photo credits

Questions

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

Sharm el-Sheikh, Egypt, at 33.7 °C. Reaching it emits 735 kg CO₂e return, travelling 7h 24m each way by air (modelled).

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

Yes. Trieste reaches 20.8 °C and is reachable by rail or ferry in 14h 36m (modelled), emitting 26.6 kg CO₂e return — though Sharm el-Sheikh is warmer still, if you fly.

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

735 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.