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Heat wave this weekend in Nantes: nearly 40°C expected!

undefined undefined 26 juin 2025 undefined 19h00

The Editor

A blazing weekend ahead!

According to Météo France, the first major heat will kick in starting Saturday, with peaks of 34-35°C, especially in the northern part of the department. But that's just the beginning; on Sunday, June 29, temperatures are expected to reach up to 37°C, and they won’t drop much in the evening. So get ready for tropical nights, where the thermometer won’t dip below 20°C!

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Une publication partagée par Futura (@futura.sciences)


Up to 39°C on Monday!

The worst is yet to come on Monday, June 30. Météo France is predicting maximum temperatures reaching as high as 38 or even 39°C in the southwest of Loire-Atlantique, a real heatwave. In Nantes, temperatures could also feel close to 40°C , with heavy air and little wind to cool things down.
These temperatures are 4 to 7 degrees above the seasonal norms, according to meteorologists. It's safe to say that this episode should be taken seriously, especially for the elderly, children, and outdoor workers.

How to stay cool in Nantes during the heatwave?

The City of Nantes has already announced extended opening hours for several parks and gardens until late in the evening, to allow residents to find a bit of coolness. Fountains, shaded squares, and air-conditioned places (like libraries or shopping centers) will become essential retreats.

A helpful reminder:
*Drink water regularly, even if you're not thirsty
*Avoid physical exertion during the hottest hours (12 PM - 6 PM)
*Close your shutters during the day, and open them at night to create a draft

A taste of summer or a warning signal?

This new heat wave illustrates once again the effects of climate change, increasingly tangible in the west of France. Nantes is not escaping the trend, with peaks nearing 40°C at the end of June becoming, unfortunately, less and less rare.

So, let's bring out the hats, stay in the shade, and take care of one another. This summer is shaping up to be sizzling!