Climate

Weather: an Atlantic low-pressure system is on its way, bringing rain to the north from tomorrow

Showers are forecast in the south, with temperatures set to drop by up to eight degrees by the end of the week.

8 September 2026

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Key points

Temperatures on the fall

3' min read

Translated by AI

Versione italiana

First change of the season: an Atlantic weather system is on its way, bringing a sharp drop in temperatures, with showers moving from north to south between Wednesday and Friday. This forecast, provided by Lorenzo Tedici, meteorologist and media manager at iLMeteo.it, confirms that, in the coming hours, a significant Atlantic low-pressure system will push the North African high-pressure system away, starting from the north-west, leading to a drop in temperatures of up to 8 degrees.

The subtropical spell that began on 24 May is drawing to a close; we can finally see the end in sight of the sweltering summer of 2026, the hottest on record in Italia.

Temperatures falling

Today, Tuesday 8 September, will see the last real spell of the heatwave: in the north, temperatures will still reach highs of 35°C, whilst in central and southern Italy, thermometers will show peaks of 36–37°C. The perfect example of this imminent change in the weather will be Milan: from 33°C on Tuesday, the city will cool down to just 26°C on Wednesday.

Meteo, da mercoledì temporali e crollo delle temperature

By the end of the week, the whole of Italia will be breathing a sigh of relief, with maximum temperatures everywhere reaching 28–30°C – a figure that, just a few weeks ago, was the minimum night-time temperature in Sardinia, Sicily and along the Tyrrhenian coast.

However, this new atmospheric pattern will bring with it the risk of heavy rainfall: the impact of cool Atlantic air on an area that is still experiencing a temperature anomaly of +7°C, combined with Italian seas that are 4°C warmer than the September average, will provide an enormous amount of energy for the development of heavy showers and severe thunderstorms.

The rain will start as early as Tuesday evening

Rain is set to begin as early as Tuesday evening in Eastern Liguria, Lombardy and the Alps.

On Wednesday and Thursday, the weather system will affect the rest of the North more intensely and widely, spreading on Friday to the central regions. In this initial phase, southern Italia will largely be spared the heaviest rainfall; from the weekend onwards, however, the weather will deteriorate in the south as well.

But after the rain and the drop in temperature, what will happen next? Will the intense heat return? At the moment – as IlMeteo.it explains – the models suggest that we won’t have just a temporary respite, but a lasting cool spell: although the forecasts do not rule out a few summer-like spells in the south until the middle of the month, we can start putting our fans away.

We’ll be able to sleep soundly again, switch off the air conditioning and throw the windows wide open at any time of day or night, returning to the kind of climate we’ve been longing for non-stop for almost four months.

Weather forecast for the next three days

Tuesday 8. In the North: sunny and hot; a few showers over the Alps and, late in the evening, extending towards the western lowlands and then the Triveneto region. In Central Italy: sunny with showers over the Apennines. In the South: sunny and hot.

Wednesday 9. In the North: unsettled with rain and thunderstorms. In central Italy: showers and thunderstorms in inland areas and Tuscany, fairer elsewhere. In the South: mainly sunny, with unsettled conditions in the mountains.

Thursday 10. In the North: unsettled with rain and thunderstorms. In the Centre: showers and thunderstorms. In the South: the last day of stable weather.

Forecast: a weather system moving southwards and a general drop in temperatures.