Plage du Casino, one of Cannes’ free public beaches. This one runs alongside the Festival Hall (Palais des Festivals, visible on the left) and the famous Boulevard de la Croisette.
The Cote d’Azur is happily free of sharks but does get occasional visits from jellyfish, usually the pelagia noctiluca, a fairly small and clearly visible creature that generally travels in swarms. The sting is painful but not deadly. These purple blobbies swarm every few years but scientists have failed to find a definitive explanation of why they suddenly appear.
French pharmacies sell a sun cream cream called Medusyl which prevents jellyfish stings by not allowing the tentacles to attach.
What to Do if Stung
If you’re stung, either tough it out, deal with it yourself or head to the nearest lifeguard/first aid station where they should be equipped with an antidote.
An effective treatment is to soak the area in salt water and then rub with sand to remove the stingers. If you have access to hot water soak the area in very hot water. Don’t try the urine cure, it doesn’t work, nor does washing the stings off in fresh water.
Gazagnaire, Macé and Plages du Midi beaches place anti-stinger barrier nets during the summer months.
Cannes gets a surprising amount of rain, including during the notoriously wet Cannes Film Festival week, so June thru August should be the best months for tourism, although it’ll be busy of course. Firework festivals in Cannes and neighbouring towns such as Antibes and Cagnes-sur-Mer give plenty of bangs for no bucks, the Mediterranean Sea is a perfect cool but not cold temperature, the sun shines for at least 12 hours a day and air temperatures are generally comfortable for T-shirts and shorts 24/7 if you like to keep it simple.
Average summer temperatures range from highs of 28C to lows of 17C while winter runs to average highs of 14C and lows of 4C.
October and November are statistically the wettest months.