Where is hot in September? Warm places

YesTrip editorial team · Updated: 12 October 2026

In short

In September the Mediterranean is still summery: Rhodes and Cyprus average 29 °C, Sardinia, Malta, Mallorca and Sicily just over 27 °C – with warm sea and quieter beaches. Cyprus (4 mm) and Rhodes (12 mm) stay driest. In the northern Adriatic and Barcelona rain already rises to 92 to 116 mm.

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For many people September is the best month by the sea. The air is still summery, but no longer as hot as in July and August. The water has been warming all summer and is now as warm as it gets all year. And once the school holidays are over, beaches, old towns and ferries get noticeably quieter. If you are not tied to school holidays, September often gives you the best part of the summer.

We looked at the weather of the Septembers 2015 to 2024 for 20 destinations. The pattern is clear: in the east and south of the Mediterranean it stays dry and warm. In the west and north, the first autumn thunderstorms arrive in the course of the month – and rainfall rises noticeably there.

The table: 20 destinations in September

Destination	Day (avg. high)	Night (avg. low)	Rain per month	Flight from London
Hurghada	33.3 °C	26.7 °C	0 mm	approx. 5 h
Antalya	32.3 °C	20.7 °C	26 mm	approx. 4 h
Djerba	31.3 °C	24.2 °C	13 mm	approx. 3 h
Rhodes	29.5 °C	23.4 °C	12 mm	approx. 4 h
Cyprus (Paphos)	29.2 °C	22.0 °C	4 mm	approx. 4.5 h
Athens	28.6 °C	19.4 °C	30 mm	approx. 3.5 h
Agadir	28.3 °C	19.9 °C	4 mm	approx. 4 h
Gran Canaria (Maspalomas)	27.8 °C	21.5 °C	11 mm	approx. 4.5 h
Sardinia (Cagliari)	27.6 °C	19.8 °C	31 mm	approx. 2.5 h
Malta	27.6 °C	23.4 °C	32 mm	approx. 3 h
Mallorca (Palma)	27.4 °C	20.2 °C	68 mm	approx. 2.5 h
Sicily (Palermo)	27.3 °C	20.8 °C	66 mm	approx. 3 h
Crete (Chania)	26.9 °C	21.5 °C	34 mm	approx. 4 h
Corfu	26.6 °C	21.1 °C	101 mm	approx. 3 h
Algarve (Faro)	26.1 °C	19.0 °C	13 mm	approx. 3 h
Lisbon	26.1 °C	17.5 °C	30 mm	approx. 2.5 h
Split	25.9 °C	17.7 °C	116 mm	approx. 2.5 h
Istanbul	25.5 °C	18.0 °C	49 mm	approx. 4 h
Nice	25.1 °C	17.9 °C	50 mm	approx. 2 h
Barcelona	25.0 °C	18.0 °C	92 mm	approx. 2 h

Temperature and rain: average of the Septembers 2015–2024 from the ERA5 reanalysis (via Open-Meteo), rounded. The values describe a grid cell of about 25 km and are often 1 to 2 degrees below what you measure on the beach. Flight times: typical direct flights, rounded.

Daytime high (bar) and night low (start of the line) in September

Rain in September, average 2015–2024

Average daytime high in September at 20 destinations

Gran Canaria 27.8°
Agadir 28.3°
Faro 26.1°
Lisbon 26.1°
Barcelona 25.0°
Palma 27.4°
Nice 25.1°
Cagliari 27.6°
Djerba 31.3°
Palermo 27.3°
Malta 27.6°
Split 25.9°
Corfu 26.6°
Athens 28.6°
Chania 26.9°
Rhodes 29.5°
Istanbul 25.5°
Antalya 32.3°
Paphos 29.2°
Hurghada 33.3°

Base map: Natural Earth

The safest bet: the eastern Mediterranean

If you want a beach holiday in September without weather risk, head east. Cyprus averages 29.2 °C with only 4 mm of rain in the whole month, Rhodes 29.5 °C with 12 mm. Nights stay summery too at 22 to 23 °C. Antalya is still hot by day at 32 °C, but cools down to just under 21 °C at night – much more pleasant than in July and August.

Crete sits at just under 27 °C with 34 mm of rain. Athens, at 28.6 °C, is good for sightseeing again: the Acropolis^* in the morning is no longer a heat march in September, and in the afternoon you can head for the beaches of the riviera south of the city.

Athens trip planDay by day, with map and tips

**The bays of Paleokastritsa on Corfu**Photo: Dietmar Rabich, CC BY-SA 4.0, via Wikimedia Commons

**The Venetian lighthouse in the harbour of Chania, Crete**Photo: Ввласенко, CC BY-SA 3.0, via Wikimedia Commons

**A ferry on the Bosphorus below Istanbul's old town**Photo: Moonik, CC BY-SA 3.0, via Wikimedia Commons

**Nice and the Baie des Anges from Castle Hill**Photo: Spike, CC BY-SA 4.0, via Wikimedia Commons

Istanbul, at 25.5 °C, is one of the most pleasant big cities in the south in September – warm enough for ferry rides on the Bosphorus, no longer as oppressive as in high summer.

Istanbul trip planDay by day, with map and tips

Italy, Malta, Mallorca: 27 °C and warm water

In the central Mediterranean, Sardinia, Malta, Mallorca and Sicily all sit at around 27 °C. Malta stays warmest at night at 23.4 °C, Sardinia is driest with 31 mm of rain. On Mallorca and Sicily, however, rain already rises to 66 to 68 mm in September – often as heavy thunderstorms on a few days, with sunny, warm weather in between.

Navagio bay on Zakynthos in the Ionian Sea · Photo: kallerna, CC BY-SA 4.0, via Wikimedia Commons

In the Ionian Sea and on the Adriatic, September becomes more changeable. Corfu averages 101 mm of rain, Split even 116 mm. It is still warm at 26 °C, and the sea is still pleasant – but plan a few days with something else to do.

The west: Algarve, Lisbon, Nice, Barcelona

The Algarve (26.1 °C, 13 mm of rain) is dry and warm in September, and the Atlantic is as warm as it gets all year. Lisbon also sits at 26 °C and, after the heat of high summer, is ideal for a city break with beach days in Cascais.

Nice (25.1 °C) and Barcelona (25 °C) are cities with beaches in September – warm, lively and much quieter after August. In Barcelona, though, rain rises to 92 mm; in autumn the Spanish Mediterranean coast sees heavy storms more often.

Nice trip planDay by day, with map and tips

Barcelona trip planDay by day, with map and tips

Even warmer: Red Sea, Djerba, Agadir, Canaries

At 33 °C and with no rain, Hurghada is still very warm in September – nights stay at almost 27 °C. Djerba reaches 31 °C, Agadir just over 28 °C with only 4 mm of rain, and Gran Canaria almost 28 °C. These places carry the summer furthest into autumn.

Outside your home region, mobile data abroad can get expensive. A travel eSIM is often much cheaper:

How to plan the trip

For a reliable beach holiday, September in the east and south is almost as good as high summer – just quieter. In the first half of September every place in the table works; the later in the month, the more it pays to look east or to the Canaries. Cities such as Athens, Istanbul, Lisbon and Nice are pleasant for walking again.

YesTrip turns your destination and dates into a day-by-day plan with a map and the forecast for your travel days. For Nice there is a ready-made plan with the old town, the promenade and trips along the Côte d'Azur:

For a honeymoon in autumn or at another time, Honeymoon destinations by month offers one place per month.

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Frequently asked questions

Where is it still warm in September?

Almost everywhere around the Mediterranean: Rhodes (29.5 °C), Cyprus (29.2 °C), Athens (28.6 °C), Sardinia and Malta (27.6 °C each) average well above 25 °C. Warmer still are Hurghada (33.3 °C), Antalya (32.3 °C) and Djerba (31.3 °C).

Where does it rain least in September?

In Hurghada (0 mm), on Cyprus (4 mm), in Agadir (4 mm), on Gran Canaria (11 mm) and on Rhodes (12 mm). The most rain in our list falls in Split (116 mm), on Corfu (101 mm) and in Barcelona (92 mm).

Is the sea warm in September?

Yes, in the Mediterranean the water is warmest at the end of August and in September, because it has been warming all summer. On the Algarve, too, the Atlantic is as warm then as it gets all year.

Is Mallorca still good in September?

Yes: an average of 27.4 °C by day and 20.2 °C at night, with a warm sea. Rain does rise to 68 mm in September, though, mostly as a few heavy thunderstorms.

How were the values calculated?

We averaged the daily highs, lows and rainfall of the Septembers 2015 to 2024 from the ERA5 reanalysis of the European Copernicus programme (retrieved via Open-Meteo). ERA5 uses a grid of about 25 km, so right on the coast it can be 1 to 2 degrees warmer.

Sources

Open-Meteo Historical Weather API (ERA5), average 2015–2024 – open-meteo.com
Copernicus ERA5 reanalysis (Hersbach et al. 2020) – cds.climate.copernicus.eu

Researched with AI support and checked by our editors. Prices, opening hours and weather can change – please check before you go. YesTrip is not a travel agency. Published: 12 October 2026.