September is the month the Mediterranean stops shouting. Sea temperatures peak around 25–27°C after a full summer of warming, the beaches empty out in the first week of term, and hotel rates across Greece, Malta and southern Italy fall by roughly a third. Northern Europe gets its clearest walking weather of the year at the same time.
Below: where it stays hot, what a week actually costs right now, and the September stays our team has checked this week.
Every stay below has travel dates inside September. Prices are for the whole stay, not per night, and they move daily.
A calm base a short walk from Corfu's Old Fortress 🏛️
Short stroll to Santa Maria Maggiore and the Colosseum 😍
Apartment-style comfort with a pool and gym near Fira 🥂
A short walk from the Gulbenkian Museum and city parks 🎨
The top 10 beach destinations for September, ranked by sea temperature — September is the month the water is at its warmest. Everything here is above 21°C in the sea and swimmable without thinking about it.
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Climate figures are long-term monthly averages, not a forecast. Flight times are direct, from London.
September city breaks run in two directions. Southern cities keep the summer evening warmth without the August heat, and the fares that cost a fortune in the school holidays drop back to normal in the first week of term.
The UK’s warmest sea of the year is in September, not August, and the school-holiday premium disappears in the first week of term.
The schools go back in the first week and the Mediterranean turns into a couples' month. Adults-only resorts come down with the family demand, and the sea stays warm for another six weeks.
Cyprus and the Turkish Riviera lead at 30–31°C, with the sea at 27°C. For the full list of everywhere still above 25°C, see our guide to where’s hot in September 2026.
For sun without August prices, the eastern Mediterranean: Cyprus, Crete, Malta and the Turkish coast. For a city break, Rome, Barcelona and Lisbon lose the worst of the summer heat. The Algarve suits anyone who wants a beach and a golf course in the same week.
Yes, and the drop is steep. UK schools go back in the first week, and Mediterranean hotel rates typically fall 25–40% between the last weekend of August and mid-September. Flight prices follow about a week behind.
The Mediterranean is at its warmest of the entire year in September, because the sea lags the air by about six weeks. Cyprus, Turkey and Crete all run 25–27°C, warmer than they were in June.
Six to eight weeks covers most of the Mediterranean. Anything tied to a school-holiday weekend, or to an event such as Malta’s late-September air show, wants three months. Deal prices on this page move daily.
Cornwall and the south coast. The sea around Cornwall and Brighton is at its warmest of the year in September, at 17–18°C, and the school-holiday premium disappears after the first week of term.
