The Camargue's marsh mosquitoes bite hardest on still summer evenings. Plan for those.

Yes, plenty. The Camargue, the Rhône delta between Arles, Saintes-Maries-de-la-Mer and Aigues-Mortes, has a reputation as one of France's buggiest places, and still summer evenings by the marshes are the reason. It is also France's historic West Nile area, and Aigues-Mortes had a small chikungunya cluster in September 2026, so the evening routine doubles as disease prevention.

Salt-marsh evenings

The Camargue's signature biters are salt-marsh mosquitoes, led by Aedes caspius. They hatch in huge numbers when the temporary marshes flood and after rain, and researchers trapping in the Camargue have written that these mosquitoes limit tourism there. A 2018 study found that much of the Camargue's wetland is left untreated. In Italy's Po delta, a similar wetland, the same species was densest in July and August, flew mainly at dusk with a smaller peak at dawn, and stayed within about 5 feet (1.6 m) of the ground, which is why ankles and legs take most of the bites.

Wind decides many evenings. The mistral, the strong, dry north wind that blows down the Rhône valley, tends to keep mosquitoes grounded, and the still, humid evenings after it drops tend to be the bad ones. Two other mosquitoes share the work. Culex pipiens, the West Nile carrier, bites at night and comes indoors, and the day-biting tiger mosquito lives in the towns.

For a sunset walk, a horseback ride, flamingo watching or dinner outdoors, wear long sleeves and long trousers in a light fabric, treated with permethrin at home if you'll be out every evening, and put repellent on all exposed skin, ankles included. Pick a room with air conditioning or screens and keep the windows shut from dusk. Save marsh walks for days when the mistral blows. Our repellent timing guide shows how long one coat lasts.

West Nile and chikungunya in 2026

A West Nile outbreak hit the Camargue in 1962, and the virus returned in horses in 2000 and 2015. 2026 set a record for France. Santé publique France, the national public health agency, counted 201 locally acquired cases nationwide as of October 26, in its bulletin of October 27. The Bouches-du-Rhône, home to Arles and Saintes-Maries, led every department with 37, with onsets from late June to mid-October, and the Gard, Aigues-Mortes' department, had 8. Cases aren't published by town, so whether any was caught in Arles or Saintes-Maries isn't known. Most infections cause no symptoms, and ECDC, Europe's disease agency, notes that severe illness falls mostly on people 65 and older.

Chikungunya travels on the tiger mosquito, a day biter. Aigues-Mortes, the walled town on the Gard side, had a cluster of 14 local cases with onsets in September 2026, still active on October 26, and it was the only 2026 cluster in either department. The big 2025 outbreaks there were around Marseille, Aix and Nîmes, with none in Arles, Saintes-Maries or Aigues-Mortes. In the towns, keep a daytime coat of repellent on from July to October.

CDC has no travel notice for mainland France, lists no malaria medicine and says the yellow fever vaccine is neither recommended nor required. Its France page also lists leishmaniasis, spread by sand flies that bite from dusk to dawn, which the evening routine covers.

Where you're going

How the main stops compare for a June–September trip.

The France briefing covers Provence, Paris and the rest of the country, and our Riviera briefing covers the coast.

What travelers report

Paraphrased from a hotel review and a forum thread and linked so you can read them in full. Neither is dated, and Camargue evenings change with the wind and how close you stay to the marshes.

• Les Bains Gardians, Saintes-Maries-de-la-Mer (Camargue)

  A reviewer at this hotel next to the Camargue nature park said there were no mosquitoes at all during their stay, a contrast with the area's reputation. TripAdvisor ↗

• Camargue, Arles and Aigues-Mortes · September

  In a thread about September mosquitoes, one traveler who went in late September had no bites, another in early September had no problems in the Camargue or Arles, and a poster writing in 2007 had met quite a few mosquitoes there the previous September. Posters still urged plenty of repellent, and reported few bites in Aigues-Mortes. Fodor's ↗

One rule outlasts the trip. A fever, severe headache, rash or joint pain during or within two weeks after the trip means a doctor visit, and you tell the doctor you were in the Camargue, where West Nile and chikungunya circulated in 2026.

Traveler questions