Heat wave

A heat wave could be edging into Paris and the Île-de-France region by the end of the week of June 15, 2026, as temperatures rise day after day. Météo-France is closely watching a possible shift to alert status. Here’s the latest.
The heat waves are gaining momentum over Paris, the inner suburbs (Hauts-de-Seine, Seine-Saint-Denis, Val-de-Marne) and the entire Île-de-France this week of June 15, 2026. After a cool start to the month, the mercury is rising a little more each day, peaking toward the end of the week, to the point that a heat alert cannot be ruled out. Météo-France forecasts increasingly hot afternoons and nights that struggle to cool down.

When could a heatwave alert be triggered in Paris?
For now, there is no orange heatwave alert in the Île-de-France region. But the system is moving into place. Météo-France only raises this alert level when daytime and overnight temperatures stay high for three consecutive days and three nights—a threshold that tightens as the heat endures.
The first departments to be affected are in the south of the country, where an orange alert is being considered for Friday or Saturday. In Île-de-France, attention centers on the weekend, with a peak expected from Thursday to Sunday. The Météo-France heat‑wave vigilance map, refreshed each morning, remains the go-to reference to check daily.

What will the temperatures in Paris be this week?
The trend is clear. Based on expert forecasts from Météo-France and meteo-paris.com, here is the outlook for Paris:
Monday 15 and Tuesday 16 June: around 29 to 30°C, under a blazing summer sun.
Wednesday 17 June: 31 to 32°C, the heat is really building.
Thursday 18 June: up to 34°C, a heavier, more oppressive heat, with a risk of storms later in the day.
Friday 19 June and the weekend: between 34 and 36°C, the hottest stretch of the episode.
It's mainly the nights that make the difference: the longer they stay hot, the harder the body struggles to recover, and the stronger the case for vigilance becomes.

A new heat wave on the heels of May 2026's heat wave?
This is the season’s second heatwave even before the official start of summer, which falls on June 21, 2026. Météo-France attributes it to an upper-level high-pressure ridge that drives hot air up from the Maghreb through Spain.
The memory of the late-May episode, described as historic for the season, remains on everyone's minds. These early heat spikes, increasingly frequent, bear the mark of a changing climate, the weather service says.

How to protect yourself from the heat in Paris?
The right reflexes stay the same whether there’s a heat alert or not: stay hydrated regularly, avoid strenuous activity between 12 p.m. and 4 p.m., and keep your home cool. The City of Paris lists more than 1 400 free cooling islandss, shaded parks, libraries, and museums and pools, and the Canicule Info Service number (0 800 06 66 66) remains reachable.
With heat fueling ozone pollution, we’re keeping an eye on air quality with Airparif, and we’re thinking about checking in on our most vulnerable neighbors. The guidance from Santé Publique France neatly complements these recommendations.