The meteorological change taking place this Thursday, August 28, 2025 in the Paris region marks a clear break with summer temperatures. The Ile-de-France departments (75, 77, 78, 91, 92, 93, 94, 95) are shifting into an unstable regime, with temperatures between 20 and 24°C, well below the usual 26°C for the season. This transition, accompanied by frequent precipitation, raises the question of an early end to summer for the Paris region, which could extend into September.
According to Météo Paris, a radical meteorological shift is underway this Thursday, August 28, 2025, in the Paris region and throughout the Île-de-France region. After being spared the worst of the recent heatwave, the Ile-de-France region is shifting into an oceanic low-pressure system, bringing cooler temperatures and frequent precipitation.
In the Paris region (75, 77, 78, 91, 92, 93, 94, 95), temperatures are dropping significantly. Maximum temperatures will not exceed 20 to 24°C over the next few days, well below the 26°C usually recorded in August in the capital. This cool weather contrasts particularly well with the recent heatwaves in the south of the country.
Weather models are forecasting particularly heavy rainfall totals over the Île-de-France region over the next few days. The Paris region, which usually receives less rainfall than the west of France, could be hit by heavy precipitation, particularly in the Seine-et-Marne and Yvelines departments, where accumulations could be significant.
This rainy weather will have a particular impact on travel in the Paris region. According to the latest forecasts from Météo-France, this autumnal feeling could last for several days. Transport services are keeping a close eye on this weather development, which is reminiscent of the early seasonal transitions that Parisians have experienced in the past.
In Paris and its inner suburbs, this transition is reminiscent of the early autumns that Parisians have experienced in the past, with temperatures struggling to rise above 22°C even in the middle of the day.
The forecast for September 2025 in the Paris region is more nuanced, according to data from Météo-France. Paris and its suburbs could see temperatures of 23.9°C at the start of the month, slightly above the historical average of 23°C. This slight rise could offer a respite to Parisians after a particularly cool end to August.
In Île-de-France, September is likely to alternate between cool spells and moderate heat returns, typical of this transition period. The inner suburbs (92, 93, 94) could benefit from the urban heat island effect, maintaining temperatures slightly higher than those in the outer suburbs (77, 78, 91, 95).
It would be premature for Parisians to put away their summer clothes for good. All the more so as the Mairie de Paris has just extended the end of free swimming sites by two weeks. Historically, the Paris region has often enjoyed fine late seasons, with the heat returning in September. Parisians still remember September 1987, when the thermometer soared above 30°C for several consecutive days.
The year 2025 will be remembered for its contrasting summers in the Paris region. According to weather forecasts published by Météo-France, while the region was relatively spared the most intense heatwaves to hit the south of France, it did experience some remarkably hot spells, particularly in June.
However, this transition to cooler temperatures from late August onwards is a reminder that the meteorological summer is coming to an end. For people in the Paris region accustomed to increasingly hot summers due to climate change, this return to cooler weather may seem premature, but it's part of the natural variability of the region's climate.
The weather services continue to monitor the situation, which is particularly important for a region with a population of almost 12 million. Between Parisian parks such as the Bois de Boulogne and the Bois de Vincennes, and the capital's many terraces, this changing weather pattern will redefine the habits of Parisians for this late summer.
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