As the mercury rises, Southampton is poised to experience a important heatwave that will make it feel more like summer than early autumn. This week, the city is expected to see temperatures soar beyond 25°C, surpassing even the typically balmy clime of Malta. Factors contributing to this unusual warmth include a persistent high-pressure system, which is redirecting warm air across southern England. As citizens prepare for the sweltering days ahead, key advice…