Broualan, a small village in the Breton department of Ille-et-Vilaine, is usually known for the fresh Atlantic air. Even on warm spring days, proximity to the ocean usually ensures pleasant temperatures. But at the end of May 2026, the weather in Brittany followed completely different rules.
“That night I was very hot, it was 28 degrees,” recounts a resident. The phrase initially sounds like a memory of a holiday day in the Mediterranean. In reality, it comes from a region that many people associate more with windbreakers than tropical nights.
It is especially the nights that have been drawing attention lately.
While high daytime values seem spectacular, meteorologists consider the unusually warm nights particularly remarkable. The reason is obvious: if temperatures barely drop after sunset, the body lacks necessary cooling. Sleeping becomes more difficult, homes heat up, and the burden on elderly or health-compromised people increases considerably.
In Broualan and other places in Brittany, nighttime minimum temperatures have been recorded these days that are usually only known in the height of summer. Also in nearby Dinard, the nighttime minimum exceeded 22 degrees, clearly surpassing previous May records. For many residents, the night felt more like the end of July than late May.
However, the exceptional heat is not limited to Brittany. In multiple regions of France, local temperature records have been broken within a few days. Climate experts speak of an unusually early and sustained heat event. The fact that such high values are recorded at night already in May highlights the peculiarity of the current situation.
Those who have lived in Broualan for decades are experiencing a noticeable change. Previously, warm summer nights were pleasant and rarely oppressive. Today, residents report that bedrooms hardly cool down after midnight. The heat remains like a heavy blanket over the houses.
These are still isolated record events. Nevertheless, they show how much climate extremes have already been felt even in regions that were long considered relatively cool and balanced. Brittany, once synonymous with fresh sea air, is now experiencing nights these days more typical of southern coasts.
Author: C.H.