Sicily & Sardinia: the heat is more dangerous than Mount Etna

Sicily, Sardinia, and southern mainland Italy are dramatically beautiful: volcanoes, Greek temples, wild coastlines. They are also hot — in summer hotter than almost anywhere else in Europe. In the risk profile of this region, it is not the volcano but extreme heat that represents the greatest and most underestimated risk.

In our atlas, the region scores a total risk of approximately 67% — one of the highest anywhere, with heat, fire, and a seismic/volcanic element.

Heat is the real danger

People come for Mount Etna, but it's the temperature that makes your holiday difficult.

In 2021, Syracuse recorded 48.8 °C — Europe's heat record. That same year, large parts of Sardinia burned (20,000 hectares). In 2023, Palermo airport temporarily closed due to fires during the 'Cerberus' heat wave, and in 2024 record drought led to water rationing in dozens of Sicilian municipalities.

Peak months run from June through September. At these temperatures, an afternoon walk is not romantic but risky.

And Mount Etna and the Campi Flegrei?

The volcanoes capture the imagination, but the real danger is small and well-monitored.

• Mount Etna is active several times a year, but this mainly means ash showers and occasional delays at Catania airport — no threat to tourists at a distance.
• The Campi Flegrei near Naples are continuously monitored by volcanologists. Flight delays due to ash are more realistic than direct danger.

Practical information

• Travel in May, early June, or October if you want to explore the cities and interior; July and August are physically demanding.
• Book accommodation with air conditioning — not a luxury but a necessity, even at night.
• Plan sightseeing early in the morning or late in the afternoon, drink plenty of water, and account for possible water restrictions in dry years.
• Avoid accommodation directly adjacent to dry scrubland or forest during peak fire season.

In short

Sicily and Sardinia are magnificent, but summer heat is the greatest threat there — not the volcano. Choose a cooler month or opt for the coast with air conditioning, and don't be distracted by Mount Etna: it is well-monitored. Check the current heat and fire forecast for your destination in the atlas shortly before departure.