The second heatwave of 2026 has prompted the Italian Ministry of Health to issue red-level alerts for eight urban centers, effective Sunday, June 21. According to the ministry’s bulletin, which monitors 27 cities, the number of locations under the highest risk category will rise from five to eight as temperatures climb alongside high humidity and low wind speeds.
Which cities are under red alert?
As of June 21, the red-level warning—indicating a health risk for the general population—will include eight cities. Bologna, Brescia, Firenze, Perugia, and Torino remain under the alert, which was also in effect on June 20. Bolzano, Milano, and Rieti will be added to this group on Sunday, transitioning from an orange-level alert that previously indicated risk only for vulnerable populations.
What are the health implications?
Health risks associated with these weather conditions stem from prolonged exposure to extreme temperatures, often exacerbated by a lack of ventilation and intense solar radiation. The ministry’s data shows a steady increase in cities facing heat-related risks. While the number of cities under red alert is growing, the number of locations facing orange-level alerts for vulnerable groups is also increasing, rising from seven today to eight on Sunday.
What could happen next?
As the heatwave continues, the status of cities like Rome, which remains at the orange level for both June 20 and June 21, may be subject to change depending on evolving meteorological data. If the current trend of rising temperatures and humidity persists, it is possible that more cities currently under lower alert levels could be reclassified by the Ministry of Health in subsequent bulletins.
Frequently Asked Questions
What does a red-level heat alert mean?
A red-level alert signifies that the heat poses a risk to the health of the general population, not just those considered vulnerable.
How many cities are monitored by the Ministry of Health?
The ministry’s bulletin takes into consideration 27 urban centers.
Which cities move to red alert on Sunday?
Bolzano, Milano, and Rieti will join the existing list of red-alert cities on Sunday, June 21.
How are you and your community preparing for the rising temperatures this weekend?
