La Croisette, Cannes, French Riviera, France – the Belle Époque Carlton Hotel above a sandy beach with sunshades
France · Mediterranean

Cannes Sea Temperature Today

Sea
/
Air
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UV
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Refreshing
⁦18–23°C⁩

The sea temperature at Cannes today is 20.8 °C / 69 °F – cold to refreshing water, better for a short swim. The usual October average is 20.9 °C / 70 °F. The forecast for the next 3 days is 20.4 to 20.7 °C. Over the last 30 days the sea has cooled from 23.8 °C to 20.8 °C. Swimmable from June to November, when the sea averages 18 °C or more. Source: Sea Temp Map (seatempmap.com) – NASA MUR satellite data and the Copernicus Marine sea forecast.

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Beachfront hotels in this photo: Carlton Cannes.

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Climate · monthly averages

Sea temperature by month

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.

Warmest in August (26.0°C). Coldest in February (13.8°C). Swimmable from June to November, when the sea averages 18 °C or more.

La Croisette, Cannes, French Riviera, France

The sea temperature at Cannes today is 20.8 °C (69 °F) – cold to refreshing water, better for a short swim. The usual October average is 20.9 °C. The forecast for the next 3 days is 20.4 to 20.7 °C. Over the last 30 days the sea has cooled from 23.8 °C to 20.8 °C. Swimmable from June to November, when the sea averages 18 °C or more. Source: Sea Temp Map (seatempmap.com) – NASA MUR satellite data and the Copernicus Marine sea forecast.


Sea temperature by month – Cannes
MonthMinAvgMax
January14.2°C / 57.6°F14.5°C / 58.1°F14.9°C / 58.8°F
February13.7°C / 56.7°F13.8°C / 56.9°F14.0°C / 57.3°F
March13.7°C / 56.6°F13.9°C / 57.1°F14.2°C / 57.6°F
April14.4°C / 57.9°F15.0°C / 58.9°F15.7°C / 60.2°F
May16.4°C / 61.6°F17.9°C / 64.2°F19.0°C / 66.2°F
June21.2°C / 70.1°F22.6°C / 72.6°F23.7°C / 74.7°F
July24.0°C / 75.2°F25.5°C / 77.9°F26.7°C / 80.1°F
August24.5°C / 76.2°F26.0°C / 78.9°F27.7°C / 81.8°F
September23.4°C / 74.1°F23.7°C / 74.6°F24.3°C / 75.7°F
October20.4°C / 68.7°F20.9°C / 69.5°F21.5°C / 70.8°F
November17.7°C / 63.8°F18.2°C / 64.8°F19.1°C / 66.3°F
December15.5°C / 59.9°F15.9°C / 60.6°F16.4°C / 61.6°F

Air temperature by month – Cannes
MonthMinAvgMax
January9.1°C / 48.4°F10.3°C / 50.5°F12.2°C / 54.0°F
February9.6°C / 49.2°F11.0°C / 51.7°F12.9°C / 55.1°F
March10.3°C / 50.6°F12.0°C / 53.7°F14.0°C / 57.2°F
April12.0°C / 53.6°F13.9°C / 57.1°F15.6°C / 60.1°F
May15.5°C / 59.9°F17.6°C / 63.8°F19.4°C / 66.9°F
June20.6°C / 69.1°F22.6°C / 72.8°F24.2°C / 75.6°F
July23.2°C / 73.8°F25.3°C / 77.5°F27.0°C / 80.5°F
August23.4°C / 74.1°F25.5°C / 77.8°F27.3°C / 81.1°F
September20.3°C / 68.5°F22.0°C / 71.5°F23.9°C / 74.9°F
October17.3°C / 63.1°F18.7°C / 65.6°F20.4°C / 68.6°F
November12.9°C / 55.3°F14.1°C / 57.4°F15.9°C / 60.6°F
December10.2°C / 50.4°F11.4°C / 52.5°F13.2°C / 55.7°F

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes. (Copernicus ERA5)

Cannes holidays

Known around the world for the film festival held every May in the Palais des Festivals, Cannes is a resort city on the French Riviera between Nice and the red Esterel hills. Beyond the festival, it is a seaside town of palm-lined promenades, a steep old quarter and two islands a short boat ride offshore.

Beaches

Many stretches along the Boulevard de la Croisette are run by hotels and beach clubs under concessions, with sunbeds rented by the day, and public beaches lie between them and at the eastern end near Pointe Croisette. West of the old port, the long public Plage du Midi runs towards La Bocca and is popular with families. The Lérins Islands, reached by boat from the old port in 15–20 minutes, have quieter coves for swimming.

Things to do

La Croisette, the seafront boulevard, runs from the Palais des Festivals past the grand hotels, and handprints of film stars are set into the pavement nearby. Above the old port, the lanes of Le Suquet climb to the Musée des Explorations du Monde in the old castle, with a view over the bay. The Forville market sells local produce, and Rue d'Antibes is the main shopping street. On Île Sainte-Marguerite, the Fort Royal held the prisoner known as the Man in the Iron Mask; on Île Saint-Honorat, monks still make wine at Lérins Abbey. Nice, Antibes and the perfume town of Grasse are all easy day trips.

Weather and best time to visit

From May to June the sea at Cannes gains about 5 °C (8 °F), its biggest monthly rise of the year.

Cannes has warm, dry summers and mild winters. July and August are the peak beach months, and during the film festival in May hotel prices rise sharply and access to festival venues and many events is limited to accredited guests. June and September are warm and less crowded.

Hotels and where to stay

The grand hotels line La Croisette facing the sea, while the streets around Rue d'Antibes and the station have more mid-range rooms. Le Suquet has small hotels and apartments in the old town, La Californie in the hills is an upscale residential area, and La Bocca to the west is quieter and cheaper.

Signature hotels: Hôtel Barrière Le Majestic Cannes (La Croisette) · Carlton Cannes, a Regent Hotel (La Croisette)

Airport and getting there

Nice Côte d'Azur Airport (NCE) is about 27 km away; express buses and trains via Nice reach Cannes in under an hour. Cannes station lies on the coastal line between Marseille and Ventimiglia, with direct TGV trains to Paris in about five hours.

Frequently asked questions

Is the sea at Cannes warm enough for swimming today?

Today, October 29, the sea at Cannes is 20.8 °C (69 °F) – cold to refreshing water, better for a short swim. The usual October average is 20.9 °C / 70 °F.

When is the best time to swim at Cannes?

From July to August, when the sea at Cannes (France) averages 25.5–26 °C / 78–79 °F – warm. You can swim in September (23.7 °C / 75 °F) too, but the first dip still feels fresh. No single number works for everyone, so the scale on this page is only a guide to how the water feels: below 13 °C / 55 °F only for cold-water swimmers, 13–18 °C / 55–64 °F icy, 18–23 °C / 64–73 °F cold to refreshing, 23–28 °C / 73–82 °F refreshing to pleasantly warm and above 28 °C / 82 °F as warm as a bath.

Can you swim at Cannes in May?

In May the sea at Cannes (France) averages 17.9 °C / 64 °F – icy water, most people reach for a wetsuit. It keeps warming until August, when it peaks at 26 °C / 79 °F.

Is the sea at Cannes still warm in October?

In October the sea at Cannes (France) still averages 20.9 °C / 70 °F – cold to refreshing water, better for a short swim.