The weather forecast for Paris and Île-de-France for the week of August 31 to September 6, 2026 signals a genuine return of the heat. Across the eight départements in Île-de-France (75, 77, 78, 91, 92, 93, 94 and 95), the week starts off unsettled, with a lively Monday and gusty winds, before conditions calm from Tuesday and temperatures rise noticeably toward the end of the week, reaching 29 to 30°C in Paris.
This development takes place within a broader context. According to Météo-France, a strengthening anticyclone is building over Europe, driving very hot air up from the Iberian Peninsula and North Africa. At the regional level, the Météo-Paris forecasts, guided by meteorologist Guillaume Séchet, project a week that will be increasingly sunny following the unsettled spell this Monday.
This Monday, August 31 is shaping up to be the most unsettled day of the week. In Paris, temperatures will range from 17°C in the morning to 23°C in the afternoon, under an unstable sky punctuated by showers.
The wind is also making its presence felt, with a gust of wind and gusts approaching 100 km/h in places, according to Météo-Paris. It’s best to avoid prolonged outdoor outings this Monday and opt for indoor activity while the weather system moves off to the northeast.
Yes, the lull is settling in quickly. Tuesday, September 1, the sky stays fairly cloudy but should brighten up, with no rain, for 15°C in the morning and 25°C in the afternoon in Paris.
Wednesday, September 2, a high-pressure ridge takes hold of the region: the weather clears up and becomes stable, with temperatures hovering between 14°C and 25°C. The sun gradually asserts itself, signaling a warming trend in the days ahead.
Thursday, September 3, the heat is intensifying with around 15°C in the morning and 27°C in the afternoon, despite skies that could cloud over as a front approaches.
Friday, September 4, the heat peak is confirmed: Météo-Paris forecasts up to 29°C in Paris, with around 17°C at dawn. A fully summer-like vibe, under dry conditions.
The good weather is expected to hold for this first weekend of September. On Saturday September 5, temperatures should hover around 17°C in the morning and 27°C in the afternoon in Paris, under sunny skies.
Sunday, September 6, the heat climbs another notch, with highs around 32°C and a low of 19°C at dawn. In case of high heat, it’s best to shift long outdoor outings and spend the afternoon in cool, sheltered places, such as the museums and exhibitions of Paris and Île-de-France, while staying well hydrated.
The question naturally returns after a record-breaking summer in 2026. Météo-France sticks with a hotter-than-normal scenario for the start of the school year, with a peak expected around September 4th, 5th and 6th, 2026.
That said, a genuine heatwave remains uncertain and hard to reach so late in the season, as nights get longer and cool the air. Forecasters are talking more about a late heat spike than a confirmed heatwave. We explore the topic in our dedicated article: Is Paris heating up again? Could a heatwave still be possible?
This heat wave is accompanied by little to no rainfall, which does little to ease the drought affecting the entire country. A point to keep in mind for the weeks ahead.
To monitor day-by-day developments, you can consult the Météo-France bulletin and its official vigilance map, especially for strong winds this Monday or a heatwave this weekend. The analyses from Météo-Paris.com also let you track forecasts in detail for Paris and the Île-de-France region, with updates several times a day.
In short, this week of August 31 to September 6, 2026 is shaping up to be increasingly summery for Paris and Île-de-France: a Monday that will be unsettled and windy, a calmer spell starting Tuesday, then a marked return of sunshine and heat up to 30°C, with Sunday possibly higher. We’ll be watching the skies, but it’s clearly time to break out the sunglasses.
To plan your outings around the forecast, also check out our guide What to do this week in Paris, from August 31 to September 6, 2026 and the week’s best deals from August 31 to September 6, 2026 in Paris and Île-de-France.
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Dates and Opening Time
From August 31, 2026 to September 6, 2026
Recommended age
For all
