Corsica: where dry maquis, wind and sudden severe storms converge

Corsica is one of the most beautiful islands in the Mediterranean: mountains rising straight from the sea, hidden coves and the famous GR20 hiking trail. But that same rugged nature brings two risks you need to take seriously here: forest fire and suddenly emerging severe storms.

In our atlas, Corsica rates a total risk of approximately 51%. The combination of hazards makes the island less predictable than a purely heat- or fire-focused destination.

Dry maquis plus wind = explosive

The island is covered with maquis: dense, fragrant scrubland that becomes bone-dry in summer. Combined with the dry mistral wind, a fire can spread at lightning speed here.

In 2023 there were multiple maquis fires during dry mistral conditions. In 2025 fire danger remained elevated throughout the summer and part of the GR20 hiking route closed temporarily.

The storm you don't see coming

The second risk is less well-known, but has proven the most dangerous in practice: summer storms that suddenly turn extremely violent.

In August 2022 a severe thunderstorm swept across the island with wind gusts up to 220 km/h. Five people died, some at campsites, struck by falling trees.

These types of storms build rapidly over warm seawater and can catch campsites and coastal towns off guard. Peak months for both risks are July and August.

Practical advice

• Take campsite warnings extremely seriously. If severe weather is forecast on Corsica, it's not a formality — the 2022 storm arrived largely without warning.
• Choose a campsite or accommodation without large trees directly overhead and with sturdier shelter than just your tent.
• Plan the GR20 and other mountain hikes early in the day and check daily for storm and fire risk; routes can close without notice.
• Avoid wooded, remote areas during dry mistral conditions.

In brief

Corsica is not a relaxed "kick back" destination in terms of risk: dry maquis plus wind make fires explosive, and summer storms can suddenly become life-threatening. Those who take warnings seriously and camp wisely will enjoy themselves fully. Check the current fire and weather situation for Corsica in the atlas shortly before departure and during your stay.