Bologna, September 6, 2026 – Finally, the heatwave is over in the hottest summer ever. From Wednesday, September 9, in fact, the highs will drop below 30 degrees and rain will arrive to cool down an air that will increasingly feel like autumn.
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“The entry of disturbed Atlantic flows – it reads on the website of the Agency for Environmental Prevention and Energy of Emilia-Romagna (Arpae) – will favor unstable weather conditions across the regional territory associated with precipitation, including thunderstorms, especially towards the end of the period. Temperatures tend to decrease at the end of the period in maximum values, although remaining above the climatic average.”
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On Monday, September 7, highs will remain around 35 degrees inland and 32 degrees along the coast. In the evening around 20-23 degrees. It will be clear or slightly cloudy, with afternoon showers in the Apennines. The same scenario applies to Tuesday, September 8, however, clouds will increase in anticipation of the thunderstorms expected for Wednesday, September 9 and Thursday, September 10.
Temperatures without significant changes; lows between 20 and 23 degrees and highs between 29/32 degrees on the coast and 33/35 degrees inland. Weak easterly winds tending to shift from southwest and strengthen over the hills.
The weather in Emilia-Romagna from Wednesday, September 9 to Saturday, September 12
“The passage of a low-pressure system will bring disturbed weather conditions, with thunderstorm phenomena even intense on Wednesday and Thursday; a tendency for the phenomena to weaken between Friday and Saturday.”
Writes Arpae (Agency for Environmental Prevention and Energy of Emilia-Romagna), which also notes a significant drop in temperatures with maximum values below 30 degrees.
The cooler and unstable currents – which bring rain and temperature drops – will move towards Southern Europe and will also reach Italy: it will be the end of the heatwave and the heat. This situation mainly concerns the northern regions, where showers and thunderstorms will concentrate, but subsequently the worsening will also affect other areas of the country. Temperatures will also drop noticeably.
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After the long period of abnormal heat, many locations will record significantly lower values, especially in areas directly reached by Atlantic currents.
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Western flows seem to run close to the Alpine arc, while the presence of an anticyclonic ridge near the Iberian Peninsula may favor the entry of northeast currents into our region.
In this context, some precipitation episodes will be possible, with amounts overall in line with the seasonal norm.
Temperatures, slightly and gradually decreasing, will tend to approach values close to the climatic average.
Weather forecast from late September to early October 2026
The Mediterranean area seems affected by zonal flows with probable alternation of high-pressure phases and passages of disturbed waves. Therefore, some precipitation episodes are expected during the period, with amounts overall within the norm, while temperatures will continue to remain slightly above typical seasonal values.
All long-term forecasts have been made based on the ECMWF monthly forecast system of Friday, September 4, 2026, by Maria Stefania Tesini.
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