Heatwave: the third heatwave begins, with temperatures expected to reach up to 38°C in Paris.

A third heat wave is taking hold in France and in Île-de-France starting this Monday, July 6, 2026, just a few days after the historic June spell. The thermometer is climbing in Paris day after day, with the peak expected by the end of the week, delivering August-level heat.

The heatwave is back in Paris and in Île-de-France starting this Monday, July 6, 2026, as what is already the third heatwave of the year after the May spell and the historic heatwave in June. According to Météo-France, the mercury rises by several degrees each day in the capital and across the eight departments of Île-de-France, driven by a new heat dome expanding from southwestern Europe.

We should brace for fresh heat this week, as Parisians finally enjoyed a breath of relief with daytime highs slipping below 25°C. That respite was brief. The scorching air carried up from North Africa is making a comeback across the country, bringing a dry spell and no rain in sight.

How hot will it get in Paris?

In Paris, the rise is gradual but very real. Météo-France is forecasting about 31°C on Monday, July 6, before a clear jump starting Tuesday, July 7 with 36°C expected, values well above the seasonal norms. On Wednesday, July 8, the mercury stays around 35°C under a blazing sun.

The heatwave is set to grow even hotter. The peak of the heatwave is expected around the Friday, July 10, 2026, with temperatures surpassing 35°C across nearly the entire country and peaks of 38 to 40°C in the southern half. In Île-de-France, some scenarios foresee highs approaching 38°C by the end of the week. Nights are also turning uncomfortable, with nightly lows struggling to dip below 20°C.

How long will this third heat wave last?

That’s the question on everyone’s lips: this heatwave looks set to last. The heat is expected to persist at least until the weekend of July 14, with some models even predicting a very intense peak between July 12 and 14, before a possible thunderstorm outbreak. Several southern departments are already under orange heatwave vigilance by Météo-France, and the Île-de-France situation is worth watching closely on the official vigilance map, updated twice daily. Currently in yellow heatwave vigilance, it’s likely we’ll move to orange vigilance as soon as this Tuesday.

As a reminder, the June 2026 heatwave was described by Météo‑France as the most intense episode ever recorded in France, surpassing August 2003. In Paris, temperatures topped 35°C for ten consecutive days, with two historic peaks at 40.6°C on June 24 and 40.1°C on June 25. It was also the deadliest heatwave in Île-de-France. The new spell beginning now is not expected to reach that extraordinary intensity, as the high-pressure system arrives from the west, but already parched soils and a total lack of rain call for caution.

What precautions should you take during this heatwave?

In the face of this heatwave, the usual precautions apply: stay hydrated, limit outings and strenuous activity to the coolest hours, keep your home cool, and check in on elderly, isolated or vulnerable people. The full guidelines are detailed on the Health Ministry website.

As a reminder:

In light of such a scenario, several precautions are advised:

Limit outings to the peak heat of the day.
Hydrate regularly for children, the elderly and other vulnerable people.
Provide cooling options, such as fans or time spent in air-conditioned spaces.
Prepare for potential restrictions in some public facilities or schools if a new alert is issued.

In any case, plan ahead to protect the most vulnerable and check weather forecasts regularly. And to get through the week without melting, we’ve got you covered: our ideas for cooling outings in Paris when the heat is on, plus a roundup of swimming spots in Paris and Île-de-France this summer 2026, along the Seine as well as the Marne.

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