30 city-break destinations have the right September conditions — typically 12–24°C with sea temperatures of 11–25°C. Which is best depends on where you start from: the ranking below is computed in your browser, for your own location and preferences, and matches the live map exactly.
Open this on the live map →| Destination | °C | Sea | Rain d | Price | Safety |
|---|---|---|---|---|---|
| Adelaide, AU | 14° | 14° | 60 | €€ | safe |
| Almaty, KZ | 18° | — | 26 | € | safe |
| Anaheim, US | 23° | — | 8 | €€ | safe |
| Athens, GR | 24° | 25° | 11 | € | safe |
| Bratislava, SK | 16° | — | 54 | € | safe |
| Brisbane, AU | 18° | — | 37 | €€ | safe |
| Bucharest, RO | 17° | — | 46 | € | safe |
| Budapest, HU | 17° | — | 42 | € | safe |
| Buenos Aires, AR | 14° | 15° | 70 | € | safe |
| Denver, US | 17° | — | 34 | €€ | safe |
| Kraków, PL | 14° | — | 60 | € | safe |
| Lisbon, PT | 21° | 19° | 27 | € | safe |
| Los Angeles, US | 23° | — | 7 | €€ | safe |
| Lusaka, ZM | 22° | — | 2 | € | safe |
| Melbourne, AU | 12° | 12° | 56 | €€ | safe |
| Portland, US | 17° | — | 48 | €€ | safe |
| Prague, CZ | 15° | — | 39 | € | safe |
| Reno, US | 17° | — | 12 | €€ | safe |
| Sacramento, US | 22° | — | 9 | €€ | safe |
| Salta, AR | 17° | — | 7 | € | safe |
| San Diego, US | 22° | 20° | 6 | €€ | safe |
| San Francisco, US | 18° | 14° | 9 | €€ | safe |
| San Jose, US | 21° | — | 6 | €€ | safe |
| Seattle, US | 16° | 11° | 46 | €€ | safe |
| Sofia, BG | 16° | — | 43 | € | safe |
| Sydney, AU | 15° | 18° | 72 | €€ | safe |
| Thessaloníki, GR | 21° | 24° | 25 | € | safe |
| Vienna, AT | 16° | — | 49 | €€ | safe |
| Warsaw, PL | 13° | — | 44 | € | safe |
| Zürich, CH | 15° | — | 85 | €€ | very safe |
Listed alphabetically: destinations whose September climate, safety and viability pass Travelia's bar for city breaks. The Travelia Score isn't shown here because it isn't a fixed rating — it's computed live for your location and preferences. With JavaScript on, this table becomes your personal ranking (identical to the map's numbers); with it off, the facts stand on their own.