Relief After the Heat Wave?
Italian forecasters announce a temperature drop of 6 to 10 degrees as early as August 7, but forecasts for Croatia remain uncertain.
Italian forecasters announce a temperature drop of 6 to 10 degrees as early as August 7, but forecasts for Croatia remain uncertain.
While much of Europe grapples with a heat wave, meteorological models are increasingly signaling the possibility of a significant weather shift that could bring noticeable relief within days. Although long-range forecasts remain uncertain, there are growing indications that cooler Atlantic air could interrupt the prolonged heat.
According to an analysis by the Italian weather portal Newsroom24, the key date for the change could be August 7, 2026. Cooler Atlantic air is expected to descend over the western Mediterranean, first affecting northern Italy and then spreading toward the central Apennine Peninsula.
Meteorologists predict that between August 8 and 10, 2026, a cyclone could form over the Tyrrhenian Sea. This would bring heavier precipitation, thunderstorms, and locally hail and strong winds. At the same time, daytime temperatures in parts of Italy could drop to between 24 and 28 degrees Celsius, a decrease of 6 to 10 degrees compared to temperatures during the current heat wave.
For Croatia, this scenario is not yet confirmed, but long-range forecast models have been indicating for several days the possibility of an influx of fresher air toward central Europe and the northern Adriatic. If this occurs, Istria, Kvarner, and the interior would be the first to feel the instability. On the other hand, southern Dalmatia would likely remain warmer.
Additional uncertainty comes from initial estimates for the Assumption of Mary holiday on August 15, 2026. Some calculations from the European ECMWF model suggest that another influx of cooler air could occur mid-month. However, other models predict that the heat could persist for much of August, with only occasional local showers. Due to these discrepancies, meteorologists caution that forecasts for the period after August 10 should be taken with a grain of salt.
While parts of Europe await relief, some countries are still experiencing the peak of the heat wave. In Belgium, August 3, 2026, is forecast to be the hottest day of the week, prompting the Royal Meteorological Institute of Belgium (KMI) to issue an orange alert. Inland, maximum temperatures are expected to reach 36 degrees, while the coast will be noticeably cooler, around 24 or 25 degrees.
Due to the extreme heat, the KMI has issued a series of health recommendations for the public, including drinking fluids regularly, wearing light clothing, staying in air-conditioned spaces, monitoring one's health, and eating light, easily digestible meals in smaller portions. They also advise keeping doors and windows closed to prevent heat from entering.
The night of August 3-4 could bring rain and thunderstorms, while Tuesday, August 4, will remain warm and unstable with maximum temperatures between 25 and 30 degrees, especially in the afternoon with the possibility of showers and thunderstorms. According to current forecasts, the coast will largely be spared from storms, and a gradual cooling with more sunshine but occasional showers is expected by the end of the week.
